{"pageNumber":"718","pageRowStart":"17925","pageSize":"25","recordCount":165313,"records":[{"id":70209453,"text":"70209453 - 2019 - Mountain plant communities: Uncertain sentinels?","interactions":[],"lastModifiedDate":"2020-04-08T12:00:34.541662","indexId":"70209453","displayToPublicDate":"2019-04-29T06:53:15","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5866,"text":"Progress in Physical Geography: Earth and Environment","active":true,"publicationSubtype":{"id":10}},"title":"Mountain plant communities: Uncertain sentinels?","docAbstract":"Mountain plant communities are thought to be sensitive to climate change and thus able to reveal its effects sooner than others.  Two plant communities examined here, alpine treeline ecotones and alpine tundra, have been observed to respond to climate change in recent decades.  Treeline has moved upslope and alpine tundra communities have had some species increase and others decrease.  The response for both, however, has been inconsistent if taken as a whole.  Problematic factors for this response are outlined for both:  abiotic and biotic interactions partially decouple the plant communities from climate.  Differences across spatial and temporal scales complicate interpretation. Partial decoupling leads to nonlinear responses and difficulties for prediction and for planning mitigation.","language":"English","publisher":"Sage Journals","doi":"10.1177/0309133319843873","collaboration":"","usgsCitation":"Malanson, G.P., Resler, L., Fagre, D.B., and Butler, D.R., 2019, Mountain plant communities: Uncertain sentinels?: Progress in Physical Geography: Earth and Environment, v. 43, no. 4, p. 521-543, https://doi.org/10.1177/0309133319843873.","productDescription":"23 p.","startPage":"521","endPage":"543","ipdsId":"IP-098840","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":460391,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/10919/99136","text":"External Repository"},{"id":373829,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"4","noUsgsAuthors":false,"publicationDate":"2019-04-29","publicationStatus":"PW","contributors":{"authors":[{"text":"Malanson, George P.","contributorId":189162,"corporation":false,"usgs":false,"family":"Malanson","given":"George","email":"","middleInitial":"P.","affiliations":[{"id":6768,"text":"University of Iowa","active":true,"usgs":false}],"preferred":false,"id":786535,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Resler, Lynn M","contributorId":223879,"corporation":false,"usgs":false,"family":"Resler","given":"Lynn M","affiliations":[{"id":12694,"text":"Virginia Tech","active":true,"usgs":false}],"preferred":false,"id":786536,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fagre, Daniel B. 0000-0001-8552-9461 dan_fagre@usgs.gov","orcid":"https://orcid.org/0000-0001-8552-9461","contributorId":2036,"corporation":false,"usgs":true,"family":"Fagre","given":"Daniel","email":"dan_fagre@usgs.gov","middleInitial":"B.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":true,"id":786537,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Butler, David R","contributorId":223880,"corporation":false,"usgs":false,"family":"Butler","given":"David","email":"","middleInitial":"R","affiliations":[{"id":6677,"text":"Texas State University","active":true,"usgs":false}],"preferred":false,"id":786538,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70203629,"text":"70203629 - 2019 - Incorporating social-ecological considerations into basin-wide responses to climate change in the Colorado River Basin","interactions":[],"lastModifiedDate":"2022-02-01T21:17:20.868707","indexId":"70203629","displayToPublicDate":"2019-04-28T11:49:56","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5061,"text":"Current Opinion in Environmental Sustainability","active":true,"publicationSubtype":{"id":10}},"title":"Incorporating social-ecological considerations into basin-wide responses to climate change in the Colorado River Basin","docAbstract":"<p>During the last 50 years, construction of dams in the western United States declined. This is partly because of increasing recognition of diverse and unintended social-ecological consequences of dams. Today, resource managers are recognizing the wide array of tradeoffs and are including a more diverse group of stakeholders in decision making for individual dams. Yet decisions at the regional scale maintain a focus on a limited number of resources and objectives, leading to inefficient and inequitable outcomes. Social-ecological changes compounded by climate change challenge this management paradigm. Increasing water demands for humans and the environment and renewed interest in hydropower present opportunities for operations that include climate change mitigation and adaptation strategies while considering tradeoffs and equitable responses at the regional scale.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.cosust.2019.04.002","usgsCitation":"Bair, L.S., Yackulic, C.B., Schmidt, J.C., Perry, D.M., Kirchhoff, C.J., Chief, K., and Colombi, B.J., 2019, Incorporating social-ecological considerations into basin-wide responses to climate change in the Colorado River Basin: Current Opinion in Environmental Sustainability, v. 37, p. 14-19, https://doi.org/10.1016/j.cosust.2019.04.002.","productDescription":"6 p.","startPage":"14","endPage":"19","ipdsId":"IP-106843","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":467663,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.cosust.2019.04.002","text":"Publisher Index Page"},{"id":364187,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Colorado River Basin","volume":"37","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bair, Lucas S. 0000-0002-9911-3624 lbair@usgs.gov","orcid":"https://orcid.org/0000-0002-9911-3624","contributorId":5270,"corporation":false,"usgs":true,"family":"Bair","given":"Lucas","email":"lbair@usgs.gov","middleInitial":"S.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":763325,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yackulic, Charles B. 0000-0001-9661-0724 cyackulic@usgs.gov","orcid":"https://orcid.org/0000-0001-9661-0724","contributorId":4662,"corporation":false,"usgs":true,"family":"Yackulic","given":"Charles","email":"cyackulic@usgs.gov","middleInitial":"B.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":763326,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schmidt, John C.","contributorId":207751,"corporation":false,"usgs":false,"family":"Schmidt","given":"John","email":"","middleInitial":"C.","affiliations":[{"id":37627,"text":"Department of Watershed Sciences, Utah State University, Logan, UT, USA","active":true,"usgs":false}],"preferred":false,"id":763327,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Perry, Denielle M.","contributorId":215885,"corporation":false,"usgs":false,"family":"Perry","given":"Denielle","email":"","middleInitial":"M.","affiliations":[{"id":39324,"text":"School of Earth and Sustainability, Northern Arizona University, Flagstaff, Arizona 86011, USA","active":true,"usgs":false}],"preferred":false,"id":763328,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kirchhoff, Christine J.","contributorId":215886,"corporation":false,"usgs":false,"family":"Kirchhoff","given":"Christine","email":"","middleInitial":"J.","affiliations":[{"id":39325,"text":"Connecticut Institute for Resilience and Climate Adaptation, Civil and Environmental Engineering, University of Connecticut, Storrs, Connecticut 06269, USA","active":true,"usgs":false}],"preferred":false,"id":763329,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Chief, Karletta","contributorId":147055,"corporation":false,"usgs":false,"family":"Chief","given":"Karletta","email":"","affiliations":[{"id":6624,"text":"University of Arizona, Laboratory of Tree-Ring Research","active":true,"usgs":false}],"preferred":false,"id":763330,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Colombi, Benedict J.","contributorId":215887,"corporation":false,"usgs":false,"family":"Colombi","given":"Benedict","email":"","middleInitial":"J.","affiliations":[{"id":39326,"text":"School of Anthropology, University of Arizona, Tucson, Arizona 85721, USA","active":true,"usgs":false}],"preferred":false,"id":763331,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70231265,"text":"70231265 - 2019 - Induced seismicity reduces seismic hazard?","interactions":[],"lastModifiedDate":"2022-05-04T15:01:54.765642","indexId":"70231265","displayToPublicDate":"2019-04-28T09:51:02","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1807,"text":"Geophysical Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Induced seismicity reduces seismic hazard?","docAbstract":"<div class=\"abstract-group\"><div class=\"article-section__content en main\"><p>Earthquakes caused by human activities have been observed for decades. Often these are related to industrial activities pumping fluids into deep geologic formations, like with wastewater disposal. The simplest theory connecting these processes to earthquakes is straightforward: injection leads to fluid pressure changes that either reduce the strength of preexisting faults or generate new faults. In practice, the conditions that lead to induced earthquakes are not always clear in ways that can be generalized. Kao et al. (2018,<span>&nbsp;</span>https://doi.org/10.1029/2018GL079288) show how the distribution of induced earthquakes in Western Canada relate to natural rates of deformation in the crust. Using these new results, they discuss an intriguing paradox: induced seismicity can cause short-term increases in the seismic hazard that are followed by a period of reduced seismic hazard. Such hazard-reducing scenarios are plausible but hinge upon simplifying assumptions about how the crust stores and releases strain energy in the form of earthquakes.</p></div></div>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2019GL081991","usgsCitation":"Barbour, A.J., and Pollitz, F., 2019, Induced seismicity reduces seismic hazard?: Geophysical Research Letters, v. 46, no. 8, p. 4170-4173, https://doi.org/10.1029/2019GL081991.","productDescription":"4 p.","startPage":"4170","endPage":"4173","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":467665,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2019gl081991","text":"Publisher Index Page"},{"id":400131,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"8","noUsgsAuthors":false,"publicationDate":"2019-04-24","publicationStatus":"PW","contributors":{"authors":[{"text":"Barbour, Andrew J. 0000-0002-6890-2452 abarbour@usgs.gov","orcid":"https://orcid.org/0000-0002-6890-2452","contributorId":197158,"corporation":false,"usgs":true,"family":"Barbour","given":"Andrew","email":"abarbour@usgs.gov","middleInitial":"J.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":842159,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Pollitz, Frederick 0000-0002-4060-2706 fpollitz@usgs.gov","orcid":"https://orcid.org/0000-0002-4060-2706","contributorId":139578,"corporation":false,"usgs":true,"family":"Pollitz","given":"Frederick","email":"fpollitz@usgs.gov","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":842160,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70203503,"text":"70203503 - 2019 - Overview of future USGS Gulf of Mexico buoyant storage assessment project","interactions":[],"lastModifiedDate":"2019-05-21T08:59:22","indexId":"70203503","displayToPublicDate":"2019-04-28T08:51:59","publicationYear":"2019","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Overview of future USGS Gulf of Mexico buoyant storage assessment project","docAbstract":"<div class=\"abstract-text\"><p>The United States Geological Survey (USGS) is a member of a U.S. Department of Energy-funded partnership headed by the University of Texas Bureau of Economic Geology that is working to assess the feasibility of offshore geologic carbon dioxide (CO2) storage in the Gulf of Mexico. The role of the USGS is to assess the buoyant geologic CO2 storage resource of the western half of the offshore Gulf of Mexico (GoM). Buoyant CO2 storage is the CO2 held in place by a top and lateral seal (either a sealing formation or a sealing fault), that creates a column of CO2 in communication across pore space in a geologic reservoir. This assessment will be similar to the USGS assessment of onshore buoyant geologic CO2 storage [1] and will employ a modified version of existing USGS methodology [2] to assess the buoyant CO2 storage capacity in the GoM.</p></div>","conferenceTitle":"14th Greenhouse Gas Control Technologies Conference ","conferenceDate":"October 21-26, 2018","conferenceLocation":"Melbourne, Australia","language":"English","publisher":"SSRN","usgsCitation":"Brennan, S.T., 2019, Overview of future USGS Gulf of Mexico buoyant storage assessment project, 14th Greenhouse Gas Control Technologies Conference , Melbourne, Australia, October 21-26, 2018, 5 p.","productDescription":"5 p.","ipdsId":"IP-101191","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":364026,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":364024,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://papers.ssrn.com/sol3/papers.cfm?abstract_id=3365595"}],"country":"Mexico, United States","otherGeospatial":"Gulf of Mexico","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -100.546875,\n              18.312810846425442\n            ],\n            [\n              -79.453125,\n              18.312810846425442\n            ],\n            [\n              -79.453125,\n              30.44867367928756\n            ],\n            [\n              -100.546875,\n              30.44867367928756\n            ],\n            [\n              -100.546875,\n              18.312810846425442\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Brennan, Sean T. 0000-0002-9381-6863 sbrennan@usgs.gov","orcid":"https://orcid.org/0000-0002-9381-6863","contributorId":205926,"corporation":false,"usgs":true,"family":"Brennan","given":"Sean","email":"sbrennan@usgs.gov","middleInitial":"T.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":762912,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70209634,"text":"70209634 - 2019 - Denitrification in the river network of a mixed land use watershed: Unpacking the complexities","interactions":[],"lastModifiedDate":"2020-05-04T17:25:53.684335","indexId":"70209634","displayToPublicDate":"2019-04-27T14:03:19","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1007,"text":"Biogeochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Denitrification in the river network of a mixed land use watershed: Unpacking the complexities","docAbstract":"<p><span>River networks have the potential to permanently remove nitrogen through denitrification. Few studies have measured denitrification rates within an entire river network or assessed how land use affect rates at larger spatial scales. We sampled 108 sites throughout the network of the Fox River watershed, Wisconsin, to determine if land use influence sediment denitrification rates, and to identify zones of elevated sediment denitrification rates (hot spots) within the river network. Partial least squares regression models identified variables from four levels of organization (river bed sediment, water column, riparian zone, and watershed) that best predicted denitrification rates throughout the river network. Nitrate availability was the most important predictor of denitrification rates, while land cover was not always a good predictor of local-scale nitrate concentrations. Thus, land cover and denitrification rate were not strongly related across the Fox River watershed. A direct relationship between denitrification rate and watershed land cover occurred only in the Wolf River sub-watershed, the least anthropogenically disturbed of the sub-watersheds. Denitrification hot spots were located throughout the river network, regardless of watershed land use, with hot spot location being determined primarily by nitrate availability. In the Fox River watershed, when nitrate was abundant, river bed sediment character influenced denitrification rate, with higher denitrification rates at sites with fine, organic sediments. These findings suggest that&nbsp;denitrification occurring throughout an entire river network, from headwater streams to larger rivers, can help reduce nitrogen loads&nbsp;to downstream water bodies.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s10533-019-00565-6","usgsCitation":"Kreiling, R., Richardson, W.B., Bartsch, L., Thoms, M.C., and Christensen, V.G., 2019, Denitrification in the river network of a mixed land use watershed: Unpacking the complexities: Biogeochemistry, v. 143, p. 327-346, https://doi.org/10.1007/s10533-019-00565-6.","productDescription":"20 p.","startPage":"327","endPage":"346","numberOfPages":"20","ipdsId":"IP-096829","costCenters":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"links":[{"id":437480,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P93RTNVY","text":"USGS data release","linkHelpText":"Great Lakes Restoration Initiative Project 49 Fox River Basin 2016 and 2017 Data"},{"id":374060,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wisconsin","otherGeospatial":"Fox River watershed","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -89.8736572265625,\n              43.45690646829029\n            ],\n            [\n              -87.6873779296875,\n              43.45690646829029\n            ],\n            [\n              -87.6873779296875,\n              45.79816953017265\n            ],\n            [\n              -89.8736572265625,\n              45.79816953017265\n            ],\n            [\n              -89.8736572265625,\n              43.45690646829029\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"143","noUsgsAuthors":false,"publicationDate":"2019-04-27","publicationStatus":"PW","contributors":{"authors":[{"text":"Kreiling, Rebecca 0000-0002-9295-4156 rkreiling@usgs.gov","orcid":"https://orcid.org/0000-0002-9295-4156","contributorId":147679,"corporation":false,"usgs":true,"family":"Kreiling","given":"Rebecca","email":"rkreiling@usgs.gov","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":787291,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Richardson, William B. 0000-0002-7471-4394 wrichardson@usgs.gov","orcid":"https://orcid.org/0000-0002-7471-4394","contributorId":3277,"corporation":false,"usgs":true,"family":"Richardson","given":"William","email":"wrichardson@usgs.gov","middleInitial":"B.","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":787292,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bartsch, Lynn A. 0000-0002-1483-4845 lbartsch@usgs.gov","orcid":"https://orcid.org/0000-0002-1483-4845","contributorId":149360,"corporation":false,"usgs":true,"family":"Bartsch","given":"Lynn A.","email":"lbartsch@usgs.gov","affiliations":[{"id":606,"text":"Upper Midwest Environmental Sciences Center","active":true,"usgs":true}],"preferred":true,"id":787293,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Thoms, Martin C. 0000-0002-8074-0476","orcid":"https://orcid.org/0000-0002-8074-0476","contributorId":145710,"corporation":false,"usgs":false,"family":"Thoms","given":"Martin","email":"","middleInitial":"C.","affiliations":[{"id":16205,"text":"Riverine Landscapes Research Laboratory, University of New England, NSW, Australia","active":true,"usgs":false}],"preferred":false,"id":787294,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Christensen, Victoria G. 0000-0003-4166-7461 vglenn@usgs.gov","orcid":"https://orcid.org/0000-0003-4166-7461","contributorId":2354,"corporation":false,"usgs":true,"family":"Christensen","given":"Victoria","email":"vglenn@usgs.gov","middleInitial":"G.","affiliations":[{"id":37947,"text":"Upper Midwest Water Science Center","active":true,"usgs":true}],"preferred":true,"id":787295,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70203725,"text":"70203725 - 2019 - Gas hydrate production testing – Knowledge gained","interactions":[],"lastModifiedDate":"2019-06-06T14:13:06","indexId":"70203725","displayToPublicDate":"2019-04-26T14:12:35","publicationYear":"2019","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Gas hydrate production testing – Knowledge gained","docAbstract":"Since their initial discovery in the 1960’s, gas hydrates have been considered to be an important potential source of unconventional natural gas. Significant progress has been made relative to our understanding of the geologic and engineering controls on the ultimate energy potential of gas hydrate; however, more work is required to realize the promise of gas hydrates as a future energy source. Gas hydrates have been encountered, recovered or inferred to exist in numerous sedimentary basins in Arctic permafrost settings, regions of alpine permafrost, marine sediments of outer continental margins and in deep lakes. Despite the great abundance of potential gas hydrate resources in the world, a large portion of these resources reside in clay-rich sediments and fracture dominated reservoir systems, and are not generally considered producible with existing technology, but may have future potential with the emergence of new technologies. For a large portion of the world, gas hydrate in sand reservoirs have become a viable production target and the focus of the first production testing efforts.\n\nProduction tests in Arctic Canada (Mackenzie Delta) and Alaska have shown that gas can be produced from highly-concentrated gas hydrate accumulations in coarse-grained (i.e., sand rich) reservoir systems with conventional production technologies. Production can be achieved through the depressurization method and by more complex methods such as molecular substitution (e.g., CO2-CH4 exchange). In 2013, the gas hydrate production test was conducted in a marine setting in the offshore of Japan. An additional test was conducted in Japan in 2017 to further evaluate alternative well completion technologies. Also in 2018, China initiated a 60-day gas hydrate production test in the Shenhu region of the South China Sea.\n\nThis report reviews the results of gas hydrate engineering and production testing studies associated with the Mallik, Mount Elbert, and Iġnik Sikumi projects in northern Canada and Alaska. The results of the marine gas hydrate producing testing efforts in the Nankai Trough (Japan) and in the South China Sea (China) are also summarized","largerWorkType":{"id":24,"text":"Conference Paper"},"largerWorkTitle":"Proceedings of the Offshore Technology Conference","largerWorkSubtype":{"id":19,"text":"Conference Paper"},"conferenceTitle":"Offshore Technology Conference","conferenceDate":"May 6-9, 2019","conferenceLocation":"Houston, Texas","language":"English","publisher":"Offshore Technology Conference","doi":"10.4043/29516-MS","usgsCitation":"Collett, T.S., 2019, Gas hydrate production testing – Knowledge gained, <i>in</i> Proceedings of the Offshore Technology Conference, Houston, Texas, May 6-9, 2019, 16 p., https://doi.org/10.4043/29516-MS.","productDescription":"16 p.","ipdsId":"IP-105605","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":364468,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":364464,"type":{"id":15,"text":"Index Page"},"url":"https://doi.org/10.4043/29516-MS"}],"publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2019-04-26","publicationStatus":"PW","contributors":{"authors":[{"text":"Collett, Timothy S. 0000-0002-7598-4708 tcollett@usgs.gov","orcid":"https://orcid.org/0000-0002-7598-4708","contributorId":1698,"corporation":false,"usgs":true,"family":"Collett","given":"Timothy","email":"tcollett@usgs.gov","middleInitial":"S.","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true},{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":763833,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70203217,"text":"70203217 - 2019 - Global virtual water trade and the hydrological cycle: Patterns, drivers, and socio-environmental impacts","interactions":[],"lastModifiedDate":"2019-04-29T13:52:51","indexId":"70203217","displayToPublicDate":"2019-04-26T13:52:15","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1562,"text":"Environmental Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Global virtual water trade and the hydrological cycle: Patterns, drivers, and socio-environmental impacts","docAbstract":"The increasing global demand for farmland products is placing unprecedented pressure on the global agricultural system and its water resources. Many regions of the world, that are affected by a chronic water scarcity relative to their population, strongly depend on the import of agricultural commodities and associated embodied (or virtual) water. The globalization of water through virtual water trade is leading to a displacement of water use and a disconnection between human populations and the water resources they rely on. Despite the recognized importance of these phenomena in reshaping the patterns of water dependence through teleconnections between consumers and producers, their effect on global and regional water resources has just started to be quantified.  This review investigates the global spatiotemporal dynamics, drivers, and impacts of virtual water trade through an integrated analysis of surface water, groundwater, and root-zone soil moisture consumption for agricultural production; it evaluates how virtual water flows compare to the major “physical water fluxes” in the Earth System; and provides a new reconceptualization of the hydrologic cycle to account also for the role of water redistribution by the hidden ‘virtual water cycle’.","language":"English","publisher":"IOP Scence","doi":"10.1088/1748-9326/ab05f4","usgsCitation":"D’Odorico, P., Carr, J., Dalin, C., Dell’Angelo, J., Konar, M., Laio, F., Ridolfi, L., Rosa, L., Suweis, S., Tamea, S., and Tuninetti, M., 2019, Global virtual water trade and the hydrological cycle: Patterns, drivers, and socio-environmental impacts: Environmental Research Letters, v. 14, no. 5, 34 p., https://doi.org/10.1088/1748-9326/ab05f4.","productDescription":"34 p.","ipdsId":"IP-101097","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":467667,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1088/1748-9326/ab05f4","text":"Publisher Index Page"},{"id":363319,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"14","issue":"5","publishingServiceCenter":{"id":10,"text":"Baltimore PSC"},"noUsgsAuthors":false,"publicationDate":"2019-04-26","publicationStatus":"PW","contributors":{"authors":[{"text":"D’Odorico, Paolo","contributorId":209957,"corporation":false,"usgs":false,"family":"D’Odorico","given":"Paolo","email":"","affiliations":[{"id":36942,"text":"University of California, Berkeley","active":true,"usgs":false}],"preferred":false,"id":761706,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carr, Joel A. 0000-0002-9164-4156 jcarr@usgs.gov","orcid":"https://orcid.org/0000-0002-9164-4156","contributorId":168645,"corporation":false,"usgs":true,"family":"Carr","given":"Joel A.","email":"jcarr@usgs.gov","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":true,"id":761705,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dalin, Carole","contributorId":215134,"corporation":false,"usgs":false,"family":"Dalin","given":"Carole","email":"","affiliations":[{"id":39184,"text":"Institute for Sustainable Resources, University College, London, UK","active":true,"usgs":false}],"preferred":false,"id":761707,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dell’Angelo, Jampel","contributorId":215135,"corporation":false,"usgs":false,"family":"Dell’Angelo","given":"Jampel","email":"","affiliations":[{"id":39185,"text":"Department of Environmental Policy Analysis, Institute for Environmental Studies, Vrije Universiteit Amsterdam, NL","active":true,"usgs":false}],"preferred":false,"id":761708,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Konar, Megan","contributorId":215136,"corporation":false,"usgs":false,"family":"Konar","given":"Megan","email":"","affiliations":[{"id":39186,"text":"Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign","active":true,"usgs":false}],"preferred":false,"id":761709,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Laio, Francesco","contributorId":215137,"corporation":false,"usgs":false,"family":"Laio","given":"Francesco","email":"","affiliations":[{"id":39187,"text":"Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Turin, IT","active":true,"usgs":false}],"preferred":false,"id":761710,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Ridolfi, Luca","contributorId":124519,"corporation":false,"usgs":false,"family":"Ridolfi","given":"Luca","email":"","affiliations":[{"id":5039,"text":"Department of Environment, Land, and Infrastructure Engineering, Politecnico di Torino, Torino, Italy","active":true,"usgs":false}],"preferred":false,"id":761711,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Rosa, Lorenzo","contributorId":209959,"corporation":false,"usgs":false,"family":"Rosa","given":"Lorenzo","email":"","affiliations":[{"id":36942,"text":"University of California, Berkeley","active":true,"usgs":false}],"preferred":false,"id":761712,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Suweis, Samir","contributorId":209965,"corporation":false,"usgs":false,"family":"Suweis","given":"Samir","email":"","affiliations":[{"id":38039,"text":"University of Padova","active":true,"usgs":false}],"preferred":false,"id":761713,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Tamea, Stefania","contributorId":215138,"corporation":false,"usgs":false,"family":"Tamea","given":"Stefania","email":"","affiliations":[{"id":39187,"text":"Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Turin, IT","active":true,"usgs":false}],"preferred":false,"id":761714,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Tuninetti, Marta","contributorId":215139,"corporation":false,"usgs":false,"family":"Tuninetti","given":"Marta","email":"","affiliations":[{"id":39187,"text":"Department of Environment, Land and Infrastructure Engineering, Politecnico di Torino, Turin, IT","active":true,"usgs":false}],"preferred":false,"id":761715,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
,{"id":70202851,"text":"sir20195023 - 2019 - Erosion monitoring along selected bank locations of the Coosa River in Alabama using terrestrial light detection and ranging (T–lidar) technology, 2014–17","interactions":[],"lastModifiedDate":"2019-04-26T15:01:44","indexId":"sir20195023","displayToPublicDate":"2019-04-26T12:37:33","publicationYear":"2019","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2019-5023","displayTitle":"Erosion Monitoring Along Selected Bank Locations of the Coosa River in Alabama Using Terrestrial Light Detection and Ranging (T–Lidar) Technology, 2014–17","title":"Erosion monitoring along selected bank locations of the Coosa River in Alabama using terrestrial light detection and ranging (T–lidar) technology, 2014–17","docAbstract":"The Alabama Power Company operates a series of dams on the Coosa River in east central Alabama. Seven dams impound the river to form six reservoirs: Weiss Lake, H Neely Henry Lake, Logan Martin Lake, Lay Lake, Lake Mitchell, and Lake Jordan. Streamflow below these reservoirs is primarily controlled by power generation at the dams, and there is ongoing concern about the stability of selected stream banks downstream from the dams. During relicensing in the early 2000s, the Alabama Power Company and stakeholders identified particular areas of concern to monitor and document the extent of erosion. The U.S. Geological Survey, in cooperation with the Alabama Power Company, conducted a 3-year monitoring program, from 2014 to 2017, of the geomorphic conditions of six selected reaches along the Coosa River. The six reaches included two downstream from H Neely Henry Dam near Gadsden, two downstream from Logan Martin Dam near Vincent, and two downstream from Walter Bouldin Dam near Wetumpka, Alabama. The geomorphic monitoring was conducted using boat- and tripod-mounted terrestrial light detection and ranging technology. Site LM–108, an island in the Coosa River downstream from Logan Martin Dam, exhibited the greatest amount of normalized erosion, 2.05 cubic meters per square meter of area, likely because this site experiences head-on flow from the river. Bank retreat at the upstream end of the island (LM–108) was estimated at 2.9 meters for the study period. The remaining five reaches were exposed to shear flow from the river; the greatest amount of normalized erosion, 0.467 cubic meter per square meter of area, was exhibited by site WB–106 on the right bank downstream from Walter Bouldin Dam. Results of the comparisons of terrestrial light detection and ranging scans indicated that intervals between scans that exhibited the greatest amounts of erosion generally corresponded to periods of above-median flow, and that intervals between scans that exhibited the least amounts of erosion, or deposition, generally corresponded to periods of below-median flow. Relatively smaller surface areas could be surveyed at some sites because inundation or dense vegetation obscured parts of the banks, suggesting that, in future investigations, it may be preferable to conduct scans during periods of leaf-off and low flow to avoid bias introduced by parts of the banks of interest being inundated or obscured by vegetation.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20195023","collaboration":"Prepared in cooperation with the Alabama Power Company","usgsCitation":"Huizinga, R.J., and Wagner, D.M., 2019, Erosion monitoring along selected bank locations of the Coosa River in Alabama using terrestrial light detection and ranging (T–lidar) technology, 2014–17: U.S. Geological Survey Scientific Investigations Report 2019–5023, 28 p., https://doi.org/10.3133/sir20195023.","productDescription":"Report: vii, 28 p.; Data Release","numberOfPages":"40","onlineOnly":"Y","ipdsId":"IP-102291","costCenters":[{"id":36532,"text":"Central Midwest Water Science Center","active":true,"usgs":true}],"links":[{"id":363234,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2019/5023/sir20195023.pdf","text":"Report","size":"7.87 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2019–5023"},{"id":363233,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2019/5023/coverthb.jpg"},{"id":363235,"rank":3,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7GF0SS8","text":"USGS data release","description":"USGS Data Release","linkHelpText":"Erosion Monitoring along the Coosa River, Alabama, using Terrestrial Light Detection and Ranging (T-LiDAR) Technology, 2014–2017"}],"country":"United States","state":"Alabama","otherGeospatial":"Coosa River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -86.75079345703125,\n              32.45415593941475\n            ],\n            [\n              -85.3857421875,\n              32.45415593941475\n            ],\n            [\n              -85.3857421875,\n              34.309412579370544\n            ],\n            [\n              -86.75079345703125,\n              34.309412579370544\n            ],\n            [\n              -86.75079345703125,\n              32.45415593941475\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","contact":"<p>Director, <a data-mce-href=\"https://www.usgs.gov/centers/cm-water\" href=\"https://www.usgs.gov/centers/cm-water\">Central Midwest Water Science Center</a> <br>U.S. Geological Survey<br>1400 Independence Road <br>Rolla, MO 65401 </p>","tableOfContents":"<ul><li>Acknowledgments</li><li>Abstract</li><li>Introduction</li><li>Data Collection Methods</li><li>Erosion Monitoring using Terrestrial Light Detection and Ranging Surveys</li><li>Summary and Conclusions</li><li>References Cited</li></ul>","publishingServiceCenter":{"id":4,"text":"Rolla PSC"},"publishedDate":"2019-04-26","noUsgsAuthors":false,"publicationDate":"2019-04-26","publicationStatus":"PW","contributors":{"authors":[{"text":"Huizinga, Richard J. 0000-0002-2940-2324 huizinga@usgs.gov","orcid":"https://orcid.org/0000-0002-2940-2324","contributorId":2089,"corporation":false,"usgs":true,"family":"Huizinga","given":"Richard","email":"huizinga@usgs.gov","middleInitial":"J.","affiliations":[{"id":36532,"text":"Central Midwest Water Science Center","active":true,"usgs":true}],"preferred":true,"id":760260,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wagner, Daniel M. 0000-0002-0432-450X dwagner@usgs.gov","orcid":"https://orcid.org/0000-0002-0432-450X","contributorId":4531,"corporation":false,"usgs":true,"family":"Wagner","given":"Daniel","email":"dwagner@usgs.gov","middleInitial":"M.","affiliations":[{"id":24708,"text":"Lower Mississippi-Gulf Water Science Center","active":true,"usgs":true},{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true},{"id":129,"text":"Arkansas Water Science Center","active":true,"usgs":true}],"preferred":true,"id":760261,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70215492,"text":"70215492 - 2019 - Pleistocene hydrothermal activity on Brokeoff volcano and in the Maidu volcanic center, Lassen Peak area, northeast California: Evolution of magmatic-hydrothermal systems on stratovolcanoes","interactions":[],"lastModifiedDate":"2020-10-21T15:55:55.367862","indexId":"70215492","displayToPublicDate":"2019-04-26T10:52:47","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":7166,"text":"Geopshere","active":true,"publicationSubtype":{"id":10}},"title":"Pleistocene hydrothermal activity on Brokeoff volcano and in the Maidu volcanic center, Lassen Peak area, northeast California: Evolution of magmatic-hydrothermal systems on stratovolcanoes","docAbstract":"<p>Partially eroded stratovolcanoes worldwide, notably Mounts Rainier and Adams in the Cascades and several volcanoes in Japan, record episodic periods of eruption and geothermal activity that produce zones of hydrothermal alteration. The partly eroded core of late Pleistocene Brokeoff volcano on the south side of Lassen Peak exposes the upper 1 km of multiple ancient (ca. 410–300 ka) magmatic-hydrothermal alteration zones in a 3.5 by 5 km area that allows characterization of the three-dimensional hydrothermal evolution of the volcano. Both acid- and neutral-pH hydrothermal solutions produced distinctive alteration mineral assemblages in close proximity. Early hydrothermal activity is characterized by alunite-rich alteration that is temporally and spatially related to shallow intrusions in the center of the volcano. Younger acid alteration and a large area of neutral-pH alteration formed along the volcano’s flanks. The neutral-pH alteration is vertically zoned over 1000 m from shallow zeolite ± adularia through intermediate argillic (smectite-pyrite ± illite) to deep propylitic (chlorite-calcite-albite-illite) alteration. Pleistocene alteration is partly overprinted by surficial, steam-heated alteration related to Lassen’s modern hydrothermal activity. A large (∼3.5 km<sup>2</sup>), shallow (≤300 m), ca. 1.5 Ma alunite-rich magmatic-hydrothermal alteration zone is exposed on the northeast flank of the nearby Maidu volcanic center.</p>","language":"English","publisher":"Geological Society of America","doi":"10.1130/GES02049.1","usgsCitation":"John, D.A., Lee, R.G., Breit, G.N., Dilles, J.H., Calvert, A.T., Muffler, L.P., and Clynne, M.A., 2019, Pleistocene hydrothermal activity on Brokeoff volcano and in the Maidu volcanic center, Lassen Peak area, northeast California: Evolution of magmatic-hydrothermal systems on stratovolcanoes: Geopshere, v. 15, no. 3, p. 946-982, https://doi.org/10.1130/GES02049.1.","productDescription":"37 p.","startPage":"946","endPage":"982","ipdsId":"IP-100523","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":467668,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1130/ges02049.1","text":"Publisher Index Page"},{"id":437481,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9PZQGJG","text":"USGS data release","linkHelpText":"Geochemical and Geochronological Data for Hydrothermal Systems on Brokeoff Volcano and in the Maidu Volcanic Center, Lassen Peak area, northeastern California"},{"id":379596,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California","otherGeospatial":"Lassen Peak area","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -122.01965332031249,\n              39.52522954427751\n            ],\n            [\n              -120.2947998046875,\n              39.52522954427751\n            ],\n            [\n              -120.2947998046875,\n              41.10832999732831\n            ],\n            [\n              -122.01965332031249,\n              41.10832999732831\n            ],\n            [\n              -122.01965332031249,\n              39.52522954427751\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"15","issue":"3","noUsgsAuthors":false,"publicationDate":"2019-04-26","publicationStatus":"PW","contributors":{"authors":[{"text":"John, David A. 0000-0001-7977-9106 djohn@usgs.gov","orcid":"https://orcid.org/0000-0001-7977-9106","contributorId":1748,"corporation":false,"usgs":true,"family":"John","given":"David","email":"djohn@usgs.gov","middleInitial":"A.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":802450,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lee, Robert G.","contributorId":243516,"corporation":false,"usgs":false,"family":"Lee","given":"Robert","email":"","middleInitial":"G.","affiliations":[{"id":36972,"text":"University of British Columbia","active":true,"usgs":false}],"preferred":false,"id":802451,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Breit, George N. 0000-0003-2188-6798 gbreit@usgs.gov","orcid":"https://orcid.org/0000-0003-2188-6798","contributorId":1480,"corporation":false,"usgs":true,"family":"Breit","given":"George","email":"gbreit@usgs.gov","middleInitial":"N.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":802452,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dilles, John H.","contributorId":243517,"corporation":false,"usgs":false,"family":"Dilles","given":"John","email":"","middleInitial":"H.","affiliations":[{"id":6680,"text":"Oregon State University","active":true,"usgs":false}],"preferred":false,"id":802453,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Calvert, Andrew T. 0000-0001-5237-2218 acalvert@usgs.gov","orcid":"https://orcid.org/0000-0001-5237-2218","contributorId":2694,"corporation":false,"usgs":true,"family":"Calvert","given":"Andrew","email":"acalvert@usgs.gov","middleInitial":"T.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":802454,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Muffler, L.J. Patrick 0000-0001-6638-7218 pmuffler@usgs.gov","orcid":"https://orcid.org/0000-0001-6638-7218","contributorId":3322,"corporation":false,"usgs":true,"family":"Muffler","given":"L.J.","email":"pmuffler@usgs.gov","middleInitial":"Patrick","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":802455,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Clynne, Michael A. 0000-0002-4220-2968 mclynne@usgs.gov","orcid":"https://orcid.org/0000-0002-4220-2968","contributorId":2032,"corporation":false,"usgs":true,"family":"Clynne","given":"Michael","email":"mclynne@usgs.gov","middleInitial":"A.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":802456,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70203366,"text":"70203366 - 2019 - Formation of pedestalled, relict lakes on the McMurdo Ice Shelf, Antarctica","interactions":[],"lastModifiedDate":"2019-05-09T08:56:24","indexId":"70203366","displayToPublicDate":"2019-04-26T09:52:35","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2328,"text":"Journal of Glaciology","active":true,"publicationSubtype":{"id":10}},"title":"Formation of pedestalled, relict lakes on the McMurdo Ice Shelf, Antarctica","docAbstract":"<div class=\"row\"><div class=\"large-10 medium-10 small-12 columns\"><div class=\"description\"><div class=\"abstract\" data-abstract-type=\"normal\"><p>Surface debris covers much of the western portion of the McMurdo Ice Shelf and has a strong influence on the local surface albedo and energy balance. Differential ablation between debris-covered and debris-free areas creates an unusual heterogeneous surface of topographically low, high-ablation, and topographically raised (‘pedestalled’), low-ablation areas. Analysis of Landsat and MODIS satellite imagery from 1999 to 2018, alongside field observations from the 2016/2017 austral summer, shows that pedestalled relict lakes (‘pedestals’) form when an active surface meltwater lake that develops in the summer, freezes-over in winter, resulting in the lake-bottom debris being masked by a high-albedo, superimposed, ice surface. If this ice surface fails to melt during a subsequent melt season, it experiences reduced surface ablation relative to the surrounding debris-covered areas of the ice shelf. We propose that this differential ablation, and resultant hydrostatic and flexural readjustments of the ice shelf, causes the former supraglacial lake surface to become increasingly pedestalled above the lower topography of the surrounding ice shelf. Consequently, meltwater streams cannot flow onto these pedestalled features, and instead divert around them. We suggest that the development of pedestals has a significant influence on the surface-energy balance, hydrology and flexure of the ice shelf.</p></div></div></div></div>","language":"English","publisher":"Cambridge University Press","doi":"10.1017/jog.2019.17","usgsCitation":"MacDonald, G.J., Banwell, A.F., Willis, I.C., Mayer, D., Goodsell, B., and MacAyeal, D.R., 2019, Formation of pedestalled, relict lakes on the McMurdo Ice Shelf, Antarctica: Journal of Glaciology, p. 1-7, https://doi.org/10.1017/jog.2019.17.","productDescription":"7 p.","startPage":"1","endPage":"7","ipdsId":"IP-104102","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":467669,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1017/jog.2019.17","text":"Publisher Index Page"},{"id":363580,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Antarctica","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -210.9375,\n              -80.70399666821143\n            ],\n            [\n              -38.3203125,\n              -80.70399666821143\n            ],\n            [\n              -38.3203125,\n              -65.21989393613208\n            ],\n            [\n              -210.9375,\n              -65.21989393613208\n            ],\n            [\n              -210.9375,\n              -80.70399666821143\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2019-04-26","publicationStatus":"PW","contributors":{"authors":[{"text":"MacDonald, Grant J 0000-0002-9295-085X","orcid":"https://orcid.org/0000-0002-9295-085X","contributorId":215430,"corporation":false,"usgs":false,"family":"MacDonald","given":"Grant","email":"","middleInitial":"J","affiliations":[{"id":39244,"text":"Department of the Geophysical Science, The University of Chicago","active":true,"usgs":false}],"preferred":false,"id":762336,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Banwell, Alison F 0000-0001-9545-829X","orcid":"https://orcid.org/0000-0001-9545-829X","contributorId":215431,"corporation":false,"usgs":false,"family":"Banwell","given":"Alison","email":"","middleInitial":"F","affiliations":[{"id":39245,"text":"Scott Polar Research Institute, and Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder","active":true,"usgs":false}],"preferred":false,"id":762337,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Willis, Ian C","contributorId":215432,"corporation":false,"usgs":false,"family":"Willis","given":"Ian","email":"","middleInitial":"C","affiliations":[{"id":39246,"text":"Scott Polar Research Institute, The University of Cambridge","active":true,"usgs":false}],"preferred":false,"id":762338,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mayer, David 0000-0001-8351-1807","orcid":"https://orcid.org/0000-0001-8351-1807","contributorId":215429,"corporation":false,"usgs":true,"family":"Mayer","given":"David","email":"","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":762335,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Goodsell, Becky","contributorId":215433,"corporation":false,"usgs":false,"family":"Goodsell","given":"Becky","email":"","affiliations":[{"id":39244,"text":"Department of the Geophysical Science, The University of Chicago","active":true,"usgs":false}],"preferred":false,"id":762339,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"MacAyeal, Douglas R 0000-0003-0647-6176","orcid":"https://orcid.org/0000-0003-0647-6176","contributorId":215434,"corporation":false,"usgs":false,"family":"MacAyeal","given":"Douglas","email":"","middleInitial":"R","affiliations":[{"id":39244,"text":"Department of the Geophysical Science, The University of Chicago","active":true,"usgs":false}],"preferred":false,"id":762340,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70203401,"text":"70203401 - 2019 - Reducing sampling uncertainty in aeolian research to improve change detection","interactions":[],"lastModifiedDate":"2019-07-23T13:49:36","indexId":"70203401","displayToPublicDate":"2019-04-26T09:36:05","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2318,"text":"Journal of Geophysical Research F: Earth Surface","active":true,"publicationSubtype":{"id":10}},"title":"Reducing sampling uncertainty in aeolian research to improve change detection","docAbstract":"Measurements of aeolian sediment transport support our understanding of mineral dust impacts on Earth and human systems and assessments of aeolian process sensitivities to global environmental change. However, sample design principles are often overlooked in aeolian research. Here, we use high‐density field measurements of sediment mass flux across land use and land cover types to examine sample size and power effects on detecting change in aeolian transport. Temporal variances were 1.6 to 10.1 times the magnitude of spatial variances in aeolian transport for six study sites. Differences in transport were detectable for >67% of comparisons among sites using ~27 samples. Failure to detect change with smaller sample sizes suggests that aeolian transport measurements and monitoring are much more uncertain than recognized. We show how small and selective sampling, common in aeolian research, gives the false impression that differences in aeolian transport can be detected, potentially undermining inferences about process and impacting reproducibility of aeolian research.","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2019JF005042","usgsCitation":"Webb, N.P., Chappell, A., Edwards, B.L., McCord, S.E., Van Zee, J.W., Cooper, B.F., Courtright, E.M., Duniway, M.C., Sharratt, B., Tedela, N., and Toledo, D., 2019, Reducing sampling uncertainty in aeolian research to improve change detection: Journal of Geophysical Research F: Earth Surface, v. 124, no. 6, p. 1366-1377, https://doi.org/10.1029/2019JF005042.","productDescription":"12 p.","startPage":"1366","endPage":"1377","ipdsId":"IP-103060","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":467670,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2019jf005042","text":"Publisher Index Page"},{"id":363714,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"124","issue":"6","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2019-06-03","publicationStatus":"PW","contributors":{"authors":[{"text":"Webb, Nicholas P.","contributorId":195924,"corporation":false,"usgs":false,"family":"Webb","given":"Nicholas","email":"","middleInitial":"P.","affiliations":[{"id":6973,"text":"USDA-ARS Jornada Experimental Range and Jornada Basin LTER, Las Cruces, NM; New Mexico State University, Dept. of Plant and Environmental Sciences, Las Cruces, NM","active":true,"usgs":false}],"preferred":false,"id":762523,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chappell, Adrian","contributorId":167797,"corporation":false,"usgs":false,"family":"Chappell","given":"Adrian","email":"","affiliations":[],"preferred":false,"id":762524,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Edwards, Brandon L.","contributorId":215510,"corporation":false,"usgs":false,"family":"Edwards","given":"Brandon","email":"","middleInitial":"L.","affiliations":[{"id":39270,"text":"USDA-ARS Jornada Experimental Range, Las Cruces, NM 88003, USA","active":true,"usgs":false}],"preferred":false,"id":762525,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McCord, Sarah E.","contributorId":195931,"corporation":false,"usgs":false,"family":"McCord","given":"Sarah","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":762526,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Van Zee, Justin W.","contributorId":195925,"corporation":false,"usgs":false,"family":"Van Zee","given":"Justin","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":762527,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Cooper, Bradley F.","contributorId":215511,"corporation":false,"usgs":false,"family":"Cooper","given":"Bradley","email":"","middleInitial":"F.","affiliations":[{"id":39270,"text":"USDA-ARS Jornada Experimental Range, Las Cruces, NM 88003, USA","active":true,"usgs":false}],"preferred":false,"id":762528,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Courtright, Ericha M.","contributorId":195926,"corporation":false,"usgs":false,"family":"Courtright","given":"Ericha","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":762529,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Duniway, Michael C. 0000-0002-9643-2785 mduniway@usgs.gov","orcid":"https://orcid.org/0000-0002-9643-2785","contributorId":4212,"corporation":false,"usgs":true,"family":"Duniway","given":"Michael","email":"mduniway@usgs.gov","middleInitial":"C.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":762522,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Sharratt, Brenton","contributorId":215512,"corporation":false,"usgs":false,"family":"Sharratt","given":"Brenton","email":"","affiliations":[{"id":39271,"text":"USDA-ARS Northwest Sustainable Agroecosystems Research Unit, Pullman, WA 99164, USA","active":true,"usgs":false}],"preferred":false,"id":762530,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Tedela, Negussie H","contributorId":169779,"corporation":false,"usgs":false,"family":"Tedela","given":"Negussie H","affiliations":[{"id":25582,"text":"Bureau of Land Management, San Luis Valley Field Office, Monte Vista, CO 81144","active":true,"usgs":false}],"preferred":false,"id":762531,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Toledo, David","contributorId":195936,"corporation":false,"usgs":false,"family":"Toledo","given":"David","email":"","affiliations":[],"preferred":false,"id":762532,"contributorType":{"id":1,"text":"Authors"},"rank":11}]}}
,{"id":70206741,"text":"70206741 - 2019 - Case studies in groundwater contaminant fate and transport","interactions":[],"lastModifiedDate":"2019-11-20T06:57:31","indexId":"70206741","displayToPublicDate":"2019-04-26T06:54:11","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5830,"text":"Environmental Science","active":true,"publicationSubtype":{"id":10}},"title":"Case studies in groundwater contaminant fate and transport","docAbstract":"<div class=\"div1\"><p>A case study of groundwater contamination is a detailed study of a single site contaminated with a chemical or mixture that is known to be a problem at many sites. The goal of case studies is to provide insights into the physical, chemical, and biological processes controlling migration, natural attenuation, or remediation of common groundwater contaminants. Ideally, processes occurring at a case study site are representative of other sites so that knowledge gained from these intensive studies can be applied at thousands of sites where fewer data are available. Several characteristics of case studies contribute to their value. First, they may have tens to hundreds of monitoring wells, compared to fewer than ten wells at some contaminated sites. Second, some case studies continue for many years or even decades, providing insights into temporal progression of slow processes. Third, analytical methods prohibitively expensive for routine use or under development may be tested at case study sites. Finally, the ongoing characterization typical of case study sites builds a foundation of knowledge that facilitates sophisticated experimental design and testing of new methods. This article is divided into sections based on the contaminant type because the chemical and biological processes required for remediation vary for each contaminant. Most importantly, some contaminants can be biodegraded whereas metals and radionuclides cannot be destroyed but can be immobilized or rendered less toxic. The emphasis is on case studies of natural processes that control the fate and transport of contaminants in groundwater rather than on active remediation methods. The principles learned from these studies may form the basis for design of remedial strategies. The organic contaminants are divided into: petroleum hydrocarbons, fuel oxygenates, coal tar and wastes from manufactured gas plants, and chlorinated solvents. The inorganic contaminants covered are metals and radionuclides, arsenic, and nitrate. Case studies of mixed waste plumes from landfills are also described. Experimental sites where contaminants have been introduced into an aquifer as an emplaced source or a controlled release may not meet the above definition of case studies, but some are included because the overall goal is to impart lessons learned from detailed field studies. It is impossible to cover all case studies in this short format. Conversely, focusing on one or two does not convey the breadth of research results in entire range of case studies. Instead, the strategy is to describe the evolution of knowledge for each contaminant class while providing citations of relevant case studies. Much of the progress in understanding of the fate of contaminants in groundwater is based on laboratory studies; thus whenever possible, papers that included both field and laboratory results have been included among the citations. Two topics of growing importance have not been covered. These are the fate of pharmaceuticals in groundwater and discharge of contaminant plumes to surface water. These topics merit coverage in the future as knowledge grows and case studies increase in number.</p></div>","language":"English","publisher":"Oxford Bibliographies","doi":"10.1093/OBO/9780199363445-0096","usgsCitation":"Bekins, B.A., 2019, Case studies in groundwater contaminant fate and transport: Environmental Science, https://doi.org/10.1093/OBO/9780199363445-0096.","ipdsId":"IP-094115","costCenters":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"links":[{"id":369352,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"edition":"Online First","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bekins, Barbara A. 0000-0002-1411-6018 babekins@usgs.gov","orcid":"https://orcid.org/0000-0002-1411-6018","contributorId":1348,"corporation":false,"usgs":true,"family":"Bekins","given":"Barbara","email":"babekins@usgs.gov","middleInitial":"A.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true}],"preferred":true,"id":775613,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70212704,"text":"70212704 - 2019 - Exploring the barriers for people taking protective actions during the 2012 and 2015 New Zealand shakeout drills","interactions":[],"lastModifiedDate":"2020-08-26T11:52:33.323861","indexId":"70212704","displayToPublicDate":"2019-04-26T06:50:28","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2036,"text":"International Journal of Disaster Risk Reduction","active":true,"publicationSubtype":{"id":10}},"title":"Exploring the barriers for people taking protective actions during the 2012 and 2015 New Zealand shakeout drills","docAbstract":"<p><span>To reduce future earthquake injuries and casualties, it is important that people understand how their behavior, during and immediately following earthquake shaking, exposes them to increased risk of injury or death. Research confirms that protective actions can reduce injuries and that prior training can help prepare people to take appropriate actions. In this paper, we examine barriers to participation in the ShakeOut drills in New Zealand. Through citizen science research, volunteers observed people performing the drills in 2012 and 2015. Observers reported how long it took to perform the drill and why they thought some people may not have completed it. Our findings illustrate that children, elderly, and those with both mental and physical disabilities struggled with the drill. Furthermore, embarrassment was a reported leading cause for non-participation; we recommend more inclusive messaging to address potential causes of embarrassment.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.ijdrr.2019.101150","usgsCitation":"McBride, S., Becker, J., and Johnston, D.M., 2019, Exploring the barriers for people taking protective actions during the 2012 and 2015 New Zealand shakeout drills: International Journal of Disaster Risk Reduction, v. 37, 101150, 11 p., https://doi.org/10.1016/j.ijdrr.2019.101150.","productDescription":"101150, 11 p.","ipdsId":"IP-102011","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":467671,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.ijdrr.2019.101150","text":"Publisher Index Page"},{"id":377872,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"New Zealand","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"MultiPolygon\",\"coordinates\":[[[[173.02037,-40.91905],[173.24723,-41.332],[173.95841,-40.9267],[174.24759,-41.34916],[174.24852,-41.77001],[173.87645,-42.23318],[173.22274,-42.97004],[172.71125,-43.37229],[173.08011,-43.85334],[172.30858,-43.86569],[171.45293,-44.24252],[171.18514,-44.8971],[170.6167,-45.90893],[169.83142,-46.35577],[169.33233,-46.64124],[168.41135,-46.61994],[167.76374,-46.2902],[166.67689,-46.21992],[166.50914,-45.8527],[167.04642,-45.11094],[168.30376,-44.12397],[168.94941,-43.93582],[169.66781,-43.55533],[170.52492,-43.03169],[171.12509,-42.51275],[171.56971,-41.76742],[171.94871,-41.51442],[172.09723,-40.9561],[172.79858,-40.49396],[173.02037,-40.91905]]],[[[174.61201,-36.1564],[175.33662,-37.2091],[175.3576,-36.52619],[175.80889,-36.79894],[175.95849,-37.55538],[176.7632,-37.88125],[177.43881,-37.96125],[178.01035,-37.57982],[178.51709,-37.69537],[178.27473,-38.58281],[177.97046,-39.16634],[177.20699,-39.14578],[176.93998,-39.44974],[177.03295,-39.87994],[176.88582,-40.06598],[176.50802,-40.60481],[176.01244,-41.28962],[175.23957,-41.68831],[175.0679,-41.42589],[174.65097,-41.28182],[175.22763,-40.45924],[174.90016,-39.90893],[173.82405,-39.50885],[173.85226,-39.1466],[174.5748,-38.79768],[174.74347,-38.02781],[174.69702,-37.38113],[174.29203,-36.71109],[174.319,-36.53482],[173.841,-36.12198],[173.05417,-35.23713],[172.63601,-34.52911],[173.00704,-34.45066],[173.5513,-35.00618],[174.32939,-35.2655],[174.61201,-36.1564]]]]},\"properties\":{\"name\":\"New Zealand\"}}]}","volume":"37","noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"McBride, Sara K. 0000-0002-8062-6542","orcid":"https://orcid.org/0000-0002-8062-6542","contributorId":206933,"corporation":false,"usgs":true,"family":"McBride","given":"Sara K.","affiliations":[{"id":657,"text":"Western Geographic Science Center","active":true,"usgs":true},{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":797312,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Becker, Julia S.","contributorId":217541,"corporation":false,"usgs":false,"family":"Becker","given":"Julia S.","affiliations":[{"id":36277,"text":"GNS Science","active":true,"usgs":false}],"preferred":false,"id":797313,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Johnston, David M. 0000-0001-5114-5355","orcid":"https://orcid.org/0000-0001-5114-5355","contributorId":239591,"corporation":false,"usgs":false,"family":"Johnston","given":"David","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":797314,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70202346,"text":"sir20195006 - 2019 - Streamflow Gain and Loss, Hydrograph Separation, and Water Quality of Abandoned Mine Lands in the Daniel Boone National Forest, Eastern Kentucky, 2015–17","interactions":[],"lastModifiedDate":"2019-04-26T16:11:09","indexId":"sir20195006","displayToPublicDate":"2019-04-25T16:50:00","publicationYear":"2019","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2019-5006","displayTitle":"Streamflow Gain and Loss, Hydrograph Separation, and Water Quality of Abandoned Mine Lands in the Daniel Boone National Forest, Eastern Kentucky, 2015–17","title":"Streamflow Gain and Loss, Hydrograph Separation, and Water Quality of Abandoned Mine Lands in the Daniel Boone National Forest, Eastern Kentucky, 2015–17","docAbstract":"<p>During 2015–17, the U.S. Geological Survey, in cooperation with the U.S. Department of Agriculture Forest Service (Forest Service), carried out a study to characterize the hydrology and water chemistry in two study areas within the Daniel Boone National Forest. One study area was within the Rock Creek drainage and the other study area included the Wildcat and Addison Branch drainages. Both study areas historically were mined for coal prior to the Surface Mining Control and Reclamation Act of 1977 and contain abandoned coal mine sites that have since been the focus of remediation efforts. Synoptic surveys of streamflow and water-quality properties (water temperature, pH, specific conductance, and dissolved oxygen) of Rock Creek were done during November 2015 and May 2016, and surveys of Wildcat and Addison Branches were done during June 2016 and May 2017. Streamflow measurements were used to quantify contributions from tributaries and to compute streamflow gain and loss in designated reaches. Discrete measurements of water temperature, pH, specific conductance, and dissolved oxygen were used to evaluate conditions during a short timeframe and for comparison between study areas. Study designs for the two study areas differed because there was an operating streamgage on Rock Creek near Yamacraw, Kentucky (station number 03410590) where streamflow and water-quality properties (water temperature, specific conductance, pH, dissolved oxygen, and turbidity) were monitored continuously, while Addison and Wildcat Branches were ungaged. Several hydrograph separation methods were used to estimate base flow and runoff at the Rock Creek gage. These data will be used by the Forest Service to evaluate the current (2018) conditions and plan remediation efforts.</p><p>The water quality at Rock Creek was less affected by acid mine drainage (AMD) than the Wildcat or Addison Branches. Appreciable losing reaches, where water flowed underground, were identified in both study areas. All losing reaches coincided with karst topography. Streamflow increased in areas with openings to underground mine tunnels, known as portals.</p><p>Six hydrograph separation methods (Base-flow index [BFI; standard and modified], HYSEP [fixed interval, sliding interval, and local minimum], and PART) were applied to daily mean streamflow collected from August 2015 to August 2017 at station number 03410590. The hydrograph separation methods partition total streamflow into base flow and streamflow that originated from surface runoff. Base flow typically reacts slowly to precipitation infiltration and is largely sustained by groundwater discharge. The estimated daily base flow and runoff made with the different separation methods are not highly different. On average, base flow accounted for more total streamflow than surface runoff during the study period, irrespective of method.</p><p>Water temperature, pH, dissolved oxygen, specific conductance, and turbidity values were measured from July 2016 through July 2017 with a continuous monitor installed at station number 03410590. Nearly neutral pH values that ranged from 6.8 to 7.9 standard units likely limited metal solubility in the surface water. The continuous specific conductance values ranged between 30 and 259 microsiemens per centimeter at 25 degrees Celsius. The previous remediation efforts are likely continuing to improve the effect of AMD in the study area.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20195006","collaboration":"Prepared in cooperation with the U.S. Department of Agriculture Forest Service ","usgsCitation":"Cherry, M.A., 2019, Streamflow gain and loss, hydrograph separation, and water quality of abandoned mine lands in the Daniel Boone National Forest, eastern Kentucky, 2015–17: U.S. Geological Survey Scientific Investigations Report 2019–5006, 36 p., https://doi.org/10.3133/sir20195006.","productDescription":"Report: viii, 36 p.;Data Release","numberOfPages":"49","onlineOnly":"Y","additionalOnlineFiles":"N","ipdsId":"IP-091989","costCenters":[{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true}],"links":[{"id":363195,"rank":2,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2019/5006/sir20195006.pdf","text":"Report","size":"11.1 MB","linkFileType":{"id":1,"text":"pdf"},"description":"SIR 2019-5006"},{"id":363196,"rank":3,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7FX78D9","text":"USGS data release","description":"USGS data release","linkHelpText":"Streamflow and water-quality data for selected streams in the Daniel Boone National Forest, eastern Kentucky, 2015–17"},{"id":363194,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sir/2019/5006/coverthb.jpg"}],"country":"United States","state":"Kentucky","otherGeospatial":"Daniel Boone National Forest","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -84.67437744140625,\n              36.63536611993544\n            ],\n            [\n              -84.20333862304688,\n              36.63536611993544\n            ],\n            [\n              -84.20333862304688,\n              37.004746084814784\n            ],\n            [\n              -84.67437744140625,\n              37.004746084814784\n            ],\n            [\n              -84.67437744140625,\n              36.63536611993544\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","contact":"<p><a href=\"mailto:dc_oh@usgs.gov\" data-mce-href=\"mailto:dc_oh@usgs.gov\">Director</a>, <a href=\"https://www.usgs.gov/centers/oki-water\" data-mce-href=\"https://www.usgs.gov/centers/oki-water\">Ohio-Kentucky-Indiana Water Science Center</a><br>U.S. Geological Survey<br>9818 Bluegrass Parkway<br>Louisville, KY 40299</p>","tableOfContents":"<ul><li>Acknowledgments</li><li>Abstract</li><li>Introduction</li><li>Purpose and Scope</li><li>Description of Study Areas and Site Selection</li><li>Methods</li><li>Results and Discussion</li><li>Summary</li><li>References Cited</li></ul>","publishingServiceCenter":{"id":15,"text":"Madison PSC"},"publishedDate":"2019-04-25","noUsgsAuthors":false,"publicationDate":"2019-04-25","publicationStatus":"PW","contributors":{"authors":[{"text":"Cherry, Mac A. 0000-0001-6153-7010 macherry@usgs.gov","orcid":"https://orcid.org/0000-0001-6153-7010","contributorId":191313,"corporation":false,"usgs":true,"family":"Cherry","given":"Mac","email":"macherry@usgs.gov","middleInitial":"A.","affiliations":[{"id":35860,"text":"Ohio-Kentucky-Indiana Water Science Center","active":true,"usgs":true},{"id":27231,"text":"Indiana-Kentucky Water Science Center","active":true,"usgs":true}],"preferred":false,"id":757949,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70193162,"text":"70193162 - 2019 - Latitude and daily-weather effects on gobbling activity of wild turkeys in Mississippi","interactions":[],"lastModifiedDate":"2019-12-06T15:55:41","indexId":"70193162","displayToPublicDate":"2019-04-25T15:28:47","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2031,"text":"International Journal of Biometeorology","active":true,"publicationSubtype":{"id":10}},"title":"Latitude and daily-weather effects on gobbling activity of wild turkeys in Mississippi","docAbstract":"<p><span>Weather has been recognized as a density independent factor influencing the abundance, distribution, and behavior of vertebrates. Male wild turkeys’ (</span><i class=\"EmphasisTypeItalic \">Meleagris gallopavo</i><span>) breeding behavior includes vocalizations and courtship displays to attract females, the phenology of which can vary with latitude. State biologists design spring turkey-hunting season frameworks centered on annual vocalization patterns to maximize hunter engagement. The Mississippi Department of Wildlife, Fisheries, and Parks has traditionally instituted a statewide, 7-week, spring harvest season. However, hunters routinely argue that different peaks in gobbling activity across the state exist. The objective of this study was to determine whether differences in peak gobbling activity existed across a latitudinal gradient of Mississippi and assess the effect of weather on gobbling. During 2008 and 2009, we conducted a statewide gobbling survey. We used generalized additive mixed models to describe the probability and frequency of gobbling activity within northern and southern regions of the state. We also investigated the effect of daily weather conditions on gobbling activity. Our results revealed an approximate 10–14-day difference in peak gobbling activity between southern and northern Mississippi. The majority of all gobbling activity occurred within the current spring harvest framework. Perhaps more importantly, gobbling activity was more prevalent on days of regionally dry conditions (i.e., less humid) according to the Spatial Synoptic Classification. Our results provide information on gobbling activity phenology relative to hunting-season dates and weather-response information. Our approach may be particularly applicable in states with relatively shorter seasons or highly variable daily weather conditions that moderate gobbling frequency.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s00484-019-01720-2","usgsCitation":"Palumbo, M.D., Vilella, F., Wang, G., Strickland, B.K., Godwin, D., Dixon, P.G., Rubin, B.D., and Lashley, M., 2019, Latitude and daily-weather effects on gobbling activity of wild turkeys in Mississippi: International Journal of Biometeorology, v. 63, no. 8, p. 1059-1067, https://doi.org/10.1007/s00484-019-01720-2.","productDescription":"9 p.","startPage":"1059","endPage":"1067","ipdsId":"IP-068111","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":370060,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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 \"}}]}","volume":"63","issue":"8","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationDate":"2019-04-25","publicationStatus":"PW","contributors":{"authors":[{"text":"Palumbo, Matthew D.","contributorId":146265,"corporation":false,"usgs":false,"family":"Palumbo","given":"Matthew","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":776889,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vilella, Francisco 0000-0003-1552-9989 fvilella@usgs.gov","orcid":"https://orcid.org/0000-0003-1552-9989","contributorId":171363,"corporation":false,"usgs":true,"family":"Vilella","given":"Francisco","email":"fvilella@usgs.gov","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":718110,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wang, Guiming","contributorId":146267,"corporation":false,"usgs":false,"family":"Wang","given":"Guiming","affiliations":[],"preferred":false,"id":776890,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Strickland, Bronson K.","contributorId":146266,"corporation":false,"usgs":false,"family":"Strickland","given":"Bronson","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":776891,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Godwin, Dave","contributorId":146268,"corporation":false,"usgs":false,"family":"Godwin","given":"Dave","email":"","affiliations":[],"preferred":false,"id":776892,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dixon, P. Grady","contributorId":221067,"corporation":false,"usgs":false,"family":"Dixon","given":"P.","email":"","middleInitial":"Grady","affiliations":[],"preferred":false,"id":776893,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Rubin, Benjamin D.","contributorId":221068,"corporation":false,"usgs":false,"family":"Rubin","given":"Benjamin","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":776894,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Lashley, Marcus A.","contributorId":187467,"corporation":false,"usgs":false,"family":"Lashley","given":"Marcus A.","affiliations":[],"preferred":false,"id":776895,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70203193,"text":"70203193 - 2019 - The dependence of hydroclimate projections in snow‐dominated regions of the western United States on the choice of statistically downscaled climate data","interactions":[],"lastModifiedDate":"2019-04-26T09:55:28","indexId":"70203193","displayToPublicDate":"2019-04-25T15:26:05","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"The dependence of hydroclimate projections in snow‐dominated regions of the western United States on the choice of statistically downscaled climate data","docAbstract":"<p>We assess monthly temperature and precipitation data produced by four statistically based techniques that were used to downscale general circulation models (GCMs) in the Climate Model Intercomparison Program Phase 5 (CMIP5) (Taylor et al., 2012). We drive a simple water-balance model with the downscaled data to demonstrate the effect of the methods on the cold season hydrology of three, snow dominated regions in the western U.S. Independent of substantial variation among the GCM simulations over the regions (maximum range of ~3.5 °C and 50% change in precipitation), the four methods produce disparate high resolution representations of the magnitude and spatial patterns of future temperature and precipitation simulated by the models that range for up to ~3 °C and 30% change in precipitation that propagate into the hydrologic simulations. Temperature-dependent snowfall, accumulation, and melt in the model are sensitive to how atmospheric lapse rates are applied in the gridded observations that are used to remove the bias in raw GCM temperatures. By the end of the century the same downscaling method (Bias Corrected Spatial Disaggregation) yields a loss of cold-season snowpack of 34% over the Greater Yellowstone Area under a constant lapse rate ( 6.5°C km-1), whereas spatially variable lapse rates nearly double the loss to 66%, highlighting the roll of both lapse rates and high elevation stations in the bias correction dataset. The two newest downscaling methods (Multivariate Adaptive Constructed Analogs and Localized Constructed Analogs) preserve the magnitude of change simulated GCMs better than the other methods and the produce comparable hydrologic projections. Because the downscaled data from the methods vary spatially and by GCM, the downscaled data should be evaluated carefully as part of the process of using downscaled climate products to drive hydrological models over the area of interest.</p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2018WR023458","usgsCitation":"Alder, J.R., and Hostetler, S.W., 2019, The dependence of hydroclimate projections in snow‐dominated regions of the western United States on the choice of statistically downscaled climate data: Water Resources Research, v. 55, no. 3, p. 2279-2300, https://doi.org/10.1029/2018WR023458.","productDescription":"22 p.","startPage":"2279","endPage":"2300","ipdsId":"IP-097120","costCenters":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"links":[{"id":437482,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P9O9EB1C","text":"USGS data release","linkHelpText":"Data Release for The dependence of hydroclimate projections in snow-dominated regions of the western U.S. on the choice of statistically downscaled climate data"},{"id":363240,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arizona, California, Colorado, Idaho, Montana,Nevada,  New Mexico, Oregon, Washington, Wyoming","otherGeospatial":"Columbia River Basin, Greater Yellowstone Area, Sierra Nevada, Upper Colorado Basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -121.33300781249999,\n              34.66935854524543\n            ],\n            [\n              -104.80957031249999,\n              34.66935854524543\n            ],\n            [\n              -104.80957031249999,\n              48.69096039092549\n            ],\n            [\n              -121.33300781249999,\n              48.69096039092549\n            ],\n            [\n              -121.33300781249999,\n              34.66935854524543\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"55","issue":"3","noUsgsAuthors":false,"publicationDate":"2019-03-22","publicationStatus":"PW","contributors":{"authors":[{"text":"Alder, Jay R. 0000-0003-2378-2853 jalder@usgs.gov","orcid":"https://orcid.org/0000-0003-2378-2853","contributorId":5118,"corporation":false,"usgs":true,"family":"Alder","given":"Jay","email":"jalder@usgs.gov","middleInitial":"R.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":761576,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hostetler, Steven W. 0000-0003-2272-8302 swhostet@usgs.gov","orcid":"https://orcid.org/0000-0003-2272-8302","contributorId":3249,"corporation":false,"usgs":true,"family":"Hostetler","given":"Steven","email":"swhostet@usgs.gov","middleInitial":"W.","affiliations":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":761577,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70203422,"text":"70203422 - 2019 - Improving estimates of coral reef construction and erosion with in-situ measurements","interactions":[],"lastModifiedDate":"2019-09-16T12:15:11","indexId":"70203422","displayToPublicDate":"2019-04-25T12:37:50","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2620,"text":"Limnology and Oceanography","active":true,"publicationSubtype":{"id":10}},"title":"Improving estimates of coral reef construction and erosion with in-situ measurements","docAbstract":"The decline in living coral since the 1970s has conspicuously slowed reef construction on a global scale, but the related process of reef erosion is less visible and not often quantified. Here we present new data on the constructional and deconstructional side of the carbonate-budget equation in the Florida Keys, U.S.A. We documented Orbicella spp. calcification rates at four offshore reefs and quantified decadal-scale rates of Orbicella-reef erosion at a mid-shore patch reef. Using Orbicella coral heads fitted with permanent markers in 1998, we measured reef-elevation loss at 28 stations over 17.3 years to estimate a mean erosion rate of -5.5 (± 3.2, SD) mm yr-1. This loss equates to an erosion rate of -8.2 (± 4.8, SD) kg m-2 yr-1 on dead Orbicella colonies, or -6.6 kg m-2 yr-1 when adjusted reef-wide. Calculating net carbonate production using a census-based approach on the same patch reef in 2017, we estimated a reef-wide bioerosion rate of -1.9 (± 2.0, SD) kg m-2 yr-1, and a net carbonate production rate of 0.5 (± 0.3, SD) kg m-2 yr-1. Substituting the erosion rate we estimated with the markers would suggest that net carbonate production at this patch reef was lower and negative, -4.2 kg m-2 yr-1. This divergence could be a function of high erosion rates measured on the tops of Orbicella colonies, which may be preferentially targeted by parrotfish. Nonetheless, our study suggests the need for new field data to improve estimates of reef-structure persistence as coral reefs continue to degrade.","language":"English","publisher":"ASLO","doi":"10.1002/lno.11184","usgsCitation":"Kuffner, I.B., Toth, L., Hudson, J.H., Goodwin, W.B., Stathakopoulos, A., Bartlett, L., and Whitcher, E.M., 2019, Improving estimates of coral reef construction and erosion with in-situ measurements: Limnology and Oceanography, v. 64, no. 5, p. 2283-2294, https://doi.org/10.1002/lno.11184.","productDescription":"12 p.","startPage":"2283","endPage":"2294","ipdsId":"IP-101455","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":467672,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/lno.11184","text":"Publisher Index Page"},{"id":437483,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/P92NVINW","text":"USGS data release","linkHelpText":"Experimental Data on Construction and Erosion of Orbicella Coral Reefs in the Florida Keys, U.S.A."},{"id":363776,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Florida","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -82.72430419921875,\n              24.084081797317943\n            ],\n            [\n              -80.01068115234375,\n              24.084081797317943\n            ],\n            [\n              -80.01068115234375,\n              26.165298896316042\n            ],\n            [\n              -82.72430419921875,\n              26.165298896316042\n            ],\n            [\n              -82.72430419921875,\n              24.084081797317943\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"64","issue":"5","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2019-04-25","publicationStatus":"PW","contributors":{"authors":[{"text":"Kuffner, Ilsa B. 0000-0001-8804-7847 ikuffner@usgs.gov","orcid":"https://orcid.org/0000-0001-8804-7847","contributorId":3105,"corporation":false,"usgs":true,"family":"Kuffner","given":"Ilsa","email":"ikuffner@usgs.gov","middleInitial":"B.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":762632,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Toth, Lauren T. 0000-0002-2568-802X ltoth@usgs.gov","orcid":"https://orcid.org/0000-0002-2568-802X","contributorId":181748,"corporation":false,"usgs":true,"family":"Toth","given":"Lauren","email":"ltoth@usgs.gov","middleInitial":"T.","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":762633,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hudson, J. Harold","contributorId":214860,"corporation":false,"usgs":false,"family":"Hudson","given":"J.","email":"","middleInitial":"Harold","affiliations":[{"id":39127,"text":"Reef Tech, Inc.","active":true,"usgs":false}],"preferred":false,"id":762634,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Goodwin, William B.","contributorId":214861,"corporation":false,"usgs":false,"family":"Goodwin","given":"William","email":"","middleInitial":"B.","affiliations":[{"id":39128,"text":"NOAA Florida Keys National Marine Sanctuary,","active":true,"usgs":false}],"preferred":false,"id":762635,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Stathakopoulos, Anastasios 0000-0002-4404-035X astathakopoulos@usgs.gov","orcid":"https://orcid.org/0000-0002-4404-035X","contributorId":147744,"corporation":false,"usgs":true,"family":"Stathakopoulos","given":"Anastasios","email":"astathakopoulos@usgs.gov","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":762636,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bartlett, Lucy 0000-0001-6603-7090","orcid":"https://orcid.org/0000-0001-6603-7090","contributorId":214863,"corporation":false,"usgs":true,"family":"Bartlett","given":"Lucy","email":"","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":762637,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Whitcher, Elizabeth M.","contributorId":214862,"corporation":false,"usgs":false,"family":"Whitcher","given":"Elizabeth","email":"","middleInitial":"M.","affiliations":[{"id":17748,"text":"Florida Institute of Technology","active":true,"usgs":false}],"preferred":false,"id":762638,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70194290,"text":"sir20175118 - 2019 - Geochemical and mineralogical maps, with interpretation, for soils of the conterminous United States","interactions":[],"lastModifiedDate":"2025-05-15T13:21:20.301081","indexId":"sir20175118","displayToPublicDate":"2019-04-25T11:25:00","publicationYear":"2019","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":334,"text":"Scientific Investigations Report","code":"SIR","onlineIssn":"2328-0328","printIssn":"2328-031X","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2017-5118","displayTitle":"Geochemical and Mineralogical Maps, with Interpretation, for Soils of the Conterminous United States","title":"Geochemical and mineralogical maps, with interpretation, for soils of the conterminous United States","docAbstract":"<p><span>Between 2007 and 2013, the U.S. Geological Survey conducted a low-density (1 site per 1,600 square kilometers, 4,857 sites) geochemical and mineralogical survey of soils in the conterminous United States. The sampling protocol for the national-scale survey included, at each site, a sample from a depth of 0 to 5 centimeters, a composite of the soil A horizon, and a deeper sample from the soil C horizon or, if the top of the C horizon was at a depth greater than 1 meter, a sample from a depth of approximately 80–100 centimeters. The &lt;2-millimeter fraction of each sample was analyzed for a suite of 45 major and trace elements by methods that yield the total or near-total elemental concentration. The major mineralogical components in the samples from the soil A and C horizons were determined by a quantitative X-ray diffraction method using Rietveld refinement. This report presents all the maps and statistical information for each determined element and mineral along with an interpretive section discussing the possible processes that caused the observed national-scale geochemical and mineralogical patterns. Most often, the geochemical and mineralogical patterns reflect the composition of the underlying soil parent material with some modifications caused by leaching of the more mobile elements (for example, calcium and sodium) in the humid areas of the country.</span></p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sir20175118","usgsCitation":"Smith, D.B., Solano, Federico, Woodruff, L.G., Cannon, W.F., and Ellefsen, K.J., 2019,  Geochemical and mineralogical maps, with interpretation, for soils of the conterminous United States:  U.S. Geological Survey Scientific Investigations Report 2017-5118, https://doi.org/10.3133/sir20175118. 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woodruff@usgs.gov","orcid":"https://orcid.org/0000-0002-2514-9923","contributorId":2224,"corporation":false,"usgs":true,"family":"Woodruff","given":"Laurel","email":"woodruff@usgs.gov","middleInitial":"G.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":723105,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cannon, William F. 0000-0002-2699-8118 wcannon@usgs.gov","orcid":"https://orcid.org/0000-0002-2699-8118","contributorId":1883,"corporation":false,"usgs":true,"family":"Cannon","given":"William","email":"wcannon@usgs.gov","middleInitial":"F.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":723104,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ellefsen, Karl J. 0000-0003-3075-4703 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,{"id":70204235,"text":"70204235 - 2019 - Factors affecting prey availability and habitat usage of nonbreeding piping plovers (Charadrius melodus) in coastal Louisiana","interactions":[],"lastModifiedDate":"2019-07-16T10:17:07","indexId":"70204235","displayToPublicDate":"2019-04-25T10:09:19","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2220,"text":"Journal of Coastal Research","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Factors affecting prey availability and habitat usage of nonbreeding piping plovers (<i>Charadrius melodus</i>) in coastal Louisiana","title":"Factors affecting prey availability and habitat usage of nonbreeding piping plovers (Charadrius melodus) in coastal Louisiana","docAbstract":"<p><span>The Gulf of Mexico is home to a large proportion of the wintering population of the threatened piping plover (</span><i>Charadrius melodus</i><span>), but little is known about the bird's ecology in this region. In Louisiana, the majority of nonbreeding piping plovers are found on the state's rapidly eroding barrier islands. Between August 2013 and May 2014, surveys were conducted to assess the abundance and habitat use of piping plovers, as well as to characterize their invertebrate prey base, on Whiskey and Trinity islands. Seventy-eight percent of piping plovers observed were foraging, 18% roosting, and 4% engaged in other ambulatory activities. Intertidal habitat, such as foreshore beach and tidal flats, was used by 87% of foraging and 96% of roosting piping plovers. Though available, backshore beach, interior sand flats, and dunes were rarely used. The invertebrate community was dominated by haustoriid amphipods (87.5% of individuals collected), followed by bivalves (9.3%) and polychaetes (2.7%). Seasonal patterns and between-island differences were observed in all three invertebrate taxa, but these effects differed between beach habitat and the gulfside and bayside of prominent sand spits. Moisture had a positive effect on amphipod abundance and polychaete presence. There was no association between invertebrate and plover abundance, and prey abundance did not differ between sample sites where piping plovers were observed foraging and random sites. The low abundances of birds and prey, coupled with high variation among samples, are challenges for establishing baseline datasets to evaluate the consequences of coastal restoration activities.</span></p>","language":"English","publisher":"BioOne","doi":"10.2112/JCOASTRES-D-17-00147.1","usgsCitation":"Schulz, J.L., and Leberg, P., 2019, Factors affecting prey availability and habitat usage of nonbreeding piping plovers (Charadrius melodus) in coastal Louisiana: Journal of Coastal Research, v. 35, no. 4, p. 861-871, https://doi.org/10.2112/JCOASTRES-D-17-00147.1.","productDescription":"11 p.","startPage":"861","endPage":"871","ipdsId":"IP-089847","costCenters":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"links":[{"id":437485,"rank":0,"type":{"id":30,"text":"Data Release"},"url":"https://doi.org/10.5066/F7RJ4GP7","text":"USGS data release","linkHelpText":"Factors affecting prey availability and habitat use of nonbreeding piping plovers (Charadrius melodus) in coastal Louisiana"},{"id":365573,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Louisiana","county":"Terrebonne Parish","otherGeospatial":"Isles Dernières Barrier Island Refuge","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -91.021728515625,\n              28.954080659357132\n            ],\n            [\n              -90.42022705078125,\n              28.954080659357132\n            ],\n            [\n              -90.42022705078125,\n              29.28160772298835\n            ],\n            [\n              -91.021728515625,\n              29.28160772298835\n            ],\n            [\n              -91.021728515625,\n              28.954080659357132\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"35","issue":"4","publishingServiceCenter":{"id":5,"text":"Lafayette PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Schulz, Jessica L. 0000-0002-8311-9423 jschulz@usgs.gov","orcid":"https://orcid.org/0000-0002-8311-9423","contributorId":200299,"corporation":false,"usgs":true,"family":"Schulz","given":"Jessica","email":"jschulz@usgs.gov","middleInitial":"L.","affiliations":[{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true}],"preferred":true,"id":766166,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Leberg, Paul","contributorId":216903,"corporation":false,"usgs":false,"family":"Leberg","given":"Paul","affiliations":[{"id":7155,"text":"University of Louisiana at Lafayette","active":true,"usgs":false}],"preferred":false,"id":766167,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70203386,"text":"70203386 - 2019 - Arsenic concentrations after drinking water well installation: Time-varying effects on arsenic mobilization","interactions":[],"lastModifiedDate":"2019-06-18T12:02:06","indexId":"70203386","displayToPublicDate":"2019-04-25T09:33:18","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Arsenic concentrations after drinking water well installation: Time-varying effects on arsenic mobilization","docAbstract":"Chronic exposure to geogenic arsenic via drinking water is a worldwide health concern. However, effects of well installation and operation on arsenic concentrations and mobilization are not well understood. This knowledge gap impacts both reliable detection of arsenic in drinking water and effective public health recommendations to reduce exposure to arsenic. This study examines changes in arsenic and redox geochemistry over one year following installation of 254 new domestic water wells in three regions of the north-central USA that commonly have elevated arsenic concentrations. Our regions' geologic settings share some important characteristics with other high-arsenic aquifers: igneous bedrock aquifers; or late Pleistocene-age glacial sand and gravel aquifers interbedded with aquitards. Over the study, arsenic concentrations increased by 16% or more in 25% of wells in glacial aquifer regions, and the redox conditions changed towards more reducing. In wells in the bedrock region, there was no significant change in arsenic concentrations, and redox conditions changed towards more oxidizing. Our findings illustrate the importance of understanding short- to moderate-term impacts of well installation and operation on arsenic and aqueous chemistry, as it relates to human exposure. Our study informs water quality sampling requirements, which currently do not consider the implications sampling timing with respect to well installation. Evaluating arsenic concentrations in samples from new wells in the context of general regional pH and redox conditions can provide information regarding the degree of disequilibrium created by well drilling. Our analysis approach may be transferable and scalable to similar aquifer settings across the globe.","language":"English","publisher":"Elsevier","doi":"10.1016/j.scitotenv.2019.04.362","usgsCitation":"Erickson, M., Malenda, H.F., Berquist, E.C., and Ayotte, J.D., 2019, Arsenic concentrations after drinking water well installation: Time-varying effects on arsenic mobilization: Science of the Total Environment, v. 678, p. 681-691, https://doi.org/10.1016/j.scitotenv.2019.04.362.","productDescription":"11 p.","startPage":"681","endPage":"691","ipdsId":"IP-090484","costCenters":[{"id":37947,"text":"Upper Midwest Water Science Center","active":true,"usgs":true}],"links":[{"id":467673,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.scitotenv.2019.04.362","text":"Publisher Index Page"},{"id":363660,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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Mines","active":true,"usgs":false}],"preferred":true,"id":762443,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Berquist, Emily C.","contributorId":202174,"corporation":false,"usgs":false,"family":"Berquist","given":"Emily","email":"","middleInitial":"C.","affiliations":[{"id":36357,"text":"Minnesota Department of Health","active":true,"usgs":false}],"preferred":false,"id":762444,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ayotte, Joseph D. 0000-0002-1892-2738 jayotte@usgs.gov","orcid":"https://orcid.org/0000-0002-1892-2738","contributorId":149619,"corporation":false,"usgs":true,"family":"Ayotte","given":"Joseph","email":"jayotte@usgs.gov","middleInitial":"D.","affiliations":[{"id":405,"text":"NH/VT office of New England Water Science Center","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":762445,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70203211,"text":"70203211 - 2019 - Cloud cover and delayed herbivory relative to timing of spring onset interact to dampen climate change impacts on net ecosystem exchange in a coastal Alaskan wetland","interactions":[],"lastModifiedDate":"2019-09-18T15:24:01","indexId":"70203211","displayToPublicDate":"2019-04-25T08:23:14","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1562,"text":"Environmental Research Letters","active":true,"publicationSubtype":{"id":10}},"title":"Cloud cover and delayed herbivory relative to timing of spring onset interact to dampen climate change impacts on net ecosystem exchange in a coastal Alaskan wetland","docAbstract":"<p><span>Rapid warming in northern ecosystems over the past four decades has resulted in earlier spring, increased precipitation, and altered timing of plant–animal interactions, such as herbivory. Advanced spring phenology can lead to longer growing seasons and increased carbon (C) uptake. Greater precipitation coincides with greater cloud cover possibly suppressing photosynthesis. Timing of herbivory relative to spring phenology influences plant biomass. None of these changes are mutually exclusive and their interactions could lead to unexpected consequences for Arctic ecosystem function. We examined the influence of advanced spring phenology, cloud cover, and timing of grazing on C exchange in the Yukon–Kuskokwim Delta of western Alaska for three years. We combined advancement of the growing season using passive-warming open-top chambers (OTC) with controlled timing of goose grazing (early, typical, and late season) and removal of grazing. We also monitored natural variation in incident sunlight to examine the C exchange consequences of these interacting forcings. We monitored net ecosystem exchange of C (NEE) hourly using an autochamber system. Data were used to construct daily light curves for each experimental plot and sunlight data coupled with a clear-sky model was used to quantify daily and seasonal NEE over a range of incident sunlight conditions. Cloudy days resulted in the largest suppression of NEE, reducing C uptake by approximately 2 g C m</span><sup>−2</sup><span>&nbsp;d</span><sup>−1</sup><span>&nbsp;regardless of the timing of the season or timing of grazing. Delaying grazing enhanced C uptake by approximately 3 g C m</span><sup>−2</sup><span>&nbsp;d</span><sup>−1</sup><span>. Advancing spring phenology reduced C uptake by approximately 1.5 g C m</span><sup>−2</sup><span>&nbsp;d</span><sup>−1</sup><span>, but only when plots were directly warmed by the OTCs; spring advancement did not have a long-term influence on NEE. Consequently, the two strongest drivers of NEE, cloud cover and grazing, can have opposing effects and thus future growing season NEE will depend on the magnitude of change in timing of grazing and incident sunlight.</span></p>","language":"English","publisher":"IOPscience","doi":"10.1088/1748-9326/ab1c91","usgsCitation":"Leffler, J., Beard, K.H., Kelsey, K.C., Choi, R.T., Schmutz, J.A., and Welker, J., 2019, Cloud cover and delayed herbivory relative to timing of spring onset interact to dampen climate change impacts on net ecosystem exchange in a coastal Alaskan wetland: Environmental Research Letters, v. 14, no. 8, 084030, 11 p., https://doi.org/10.1088/1748-9326/ab1c91.","productDescription":"084030, 11 p.","ipdsId":"IP-103167","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":467674,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1088/1748-9326/ab1c91","text":"Publisher 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C.","contributorId":195397,"corporation":false,"usgs":false,"family":"Kelsey","given":"Katharine","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":761684,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Choi, Ryan T.","contributorId":205936,"corporation":false,"usgs":false,"family":"Choi","given":"Ryan","email":"","middleInitial":"T.","affiliations":[{"id":6682,"text":"Utah State University","active":true,"usgs":false}],"preferred":false,"id":761686,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Schmutz, Joel A. 0000-0002-6516-0836 jschmutz@usgs.gov","orcid":"https://orcid.org/0000-0002-6516-0836","contributorId":1805,"corporation":false,"usgs":true,"family":"Schmutz","given":"Joel","email":"jschmutz@usgs.gov","middleInitial":"A.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology 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,{"id":70236837,"text":"70236837 - 2019 - S2HM of buildings in USA","interactions":[],"lastModifiedDate":"2022-10-06T15:53:46.029855","indexId":"70236837","displayToPublicDate":"2019-04-25T08:10:19","publicationYear":"2019","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"displayTitle":"S<sup>2</sup>HM of buildings in USA","title":"S2HM of buildings in USA","docAbstract":"<p><span>The evolution of seismic structural-health monitoring (S</span><sup>2</sup><span>HM) of buildings in the USA is described in this chapter, emphasizing real-time monitoring. Rapid and accurate assessment of post-earthquake building damage is of paramount importance to stakeholders (including owners, occupants, city officials, and rescue teams). Relying merely on rapid visual inspection could result in serious damage being missed because it is hidden by building finishes and fireproofing. Absent visible damage to a building’s frame, most steel or reinforced-concrete moment-frame buildings will be green-tagged based on limited visual indications of deformation, such as damage to partitions or glazing. Contrary, uncertainty in judging extent of structural damage may lead an inspector toward a relatively conservative tag, such as a red tag. In such cases, expensive, intrusive, and time-consuming inspections may be recommended to building owners (e.g., following the&nbsp;</span><i>M</i><sub>w</sub><span>&nbsp;6.7 1994 Northridge, Calif., earthquake, approximately 300 buildings were subjected to costly inspection of connections (FEMA 352)). Using real-time data-driven computation of drift ratios as the parametric indicator of structural deformation and damage to a structure could be of great value to minimize potential judgmental errors in such assessments. Recorded sensor data are an indication of performance, and performance-based design standards stipulate that the amplitude of relative displacement of a building’s roof (with respect to its base) indicates performance. Establishing sound criteria for performance is the most important issue for S</span><sup>2</sup><span>HM process, and since 2000 (in the USA), using real-time computed drift ratios and acceptable threshold criteria form the basis for almost all applications in S</span><sup>2</sup><span>HM.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Seismic structural health monitoring: From theory to successful applications","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Springer","doi":"10.1007/978-3-030-13976-6_1","usgsCitation":"Celebi, M., 2019, S2HM of buildings in USA, chap. <i>of</i> Seismic structural health monitoring: From theory to successful applications, p. 3-30, https://doi.org/10.1007/978-3-030-13976-6_1.","productDescription":"28 p.","startPage":"3","endPage":"30","ipdsId":"IP-098300","costCenters":[{"id":237,"text":"Earthquake Science 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celebi@usgs.gov","orcid":"https://orcid.org/0000-0002-4769-7357","contributorId":200969,"corporation":false,"usgs":true,"family":"Celebi","given":"Mehmet","email":"celebi@usgs.gov","affiliations":[],"preferred":true,"id":854083,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Celebi, Mehmet 0000-0002-4769-7357 celebi@usgs.gov","orcid":"https://orcid.org/0000-0002-4769-7357","contributorId":200969,"corporation":false,"usgs":true,"family":"Celebi","given":"Mehmet","email":"celebi@usgs.gov","affiliations":[],"preferred":true,"id":852330,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70203185,"text":"70203185 - 2019 - Comment on “Particle fluxes in groundwater change subsurface rock chemistry over geologic time”","interactions":[],"lastModifiedDate":"2019-04-25T06:29:42","indexId":"70203185","displayToPublicDate":"2019-04-25T06:23:25","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"Comment on “Particle fluxes in groundwater change subsurface rock chemistry over geologic time”","docAbstract":"<p id=\"pr0020\"><span>Over the last decade, studies at the&nbsp;Shale&nbsp;Hills Critical Zone&nbsp;Observatory&nbsp;(Shale Hills) have greatly expanded knowledge of weathering in previously understudied, shale-mantled terrains, as well as Earth's Critical Zone as a whole. Among the many discoveries made was the importance of redistribution and losses of micron-sized particles during development of shale-derived soils. A geochemical fingerprint of this process for Al and Fe was illustrated quantitatively by&nbsp;</span>Jin et al. (2010). Subsequent papers, too numerous to list in a Comment, built upon this new recognition by evaluating the spatial and temporal aspects element mobilization. Recently,<span>&nbsp;</span>Kim et al. (2018)<span>&nbsp;examined the composition of suspended, generally micron-sized particles in the Shale Hills stream, along with the&nbsp;dissolved load, across seasons and ranges of discharge.</span></p><p id=\"pr0030\">One prominent conclusion from<span>&nbsp;</span>Kim et al. (2018)<span>&nbsp;</span>is that Zr is essentially immobile at Shale Hills. Such a broad conclusion is in direct contradiction with one from<span>&nbsp;</span>Bern and Yesavage (2018)<span>&nbsp;</span>that Zr has been mobilized from soils at Shale Hills, and the losses relative to soil parent material are significant (median 41%). The point is important, because assuming Zr immobility is necessary to index gains and losses of other elements using the open-chemical-system transport function (<i>τ</i><span>). Both papers draw upon patterns and calculations using elemental concentration data from Shale Hills and attempt to construct&nbsp;conceptual frameworks&nbsp;to explain the results. Here, the argument is made that the understanding of substantial Zr mobility from soils at Shale Hills described by&nbsp;</span>Bern and Yesavage (2018)<span>&nbsp;</span>is more accurate. Additionally, issues with adaptations of the standard<span>&nbsp;</span><i>τ</i><span>&nbsp;</span>equations used in<span>&nbsp;</span>Kim et al. (2018)<span>&nbsp;</span>and some previous papers are also addressed.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.epsl.2019.02.014","usgsCitation":"Bern, C.R., and Yesavage, T., 2019, Comment on “Particle fluxes in groundwater change subsurface rock chemistry over geologic time”: Earth and Planetary Science Letters, v. 514, p. 166-168, https://doi.org/10.1016/j.epsl.2019.02.014.","productDescription":"3 p.","startPage":"166","endPage":"168","ipdsId":"IP-102182","costCenters":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":363221,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Pennsylvania","otherGeospatial":"Shale Hills Critical Zone Observatory ","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -78.17596435546875,\n              40.4323142901375\n            ],\n            [\n              -77.33001708984375,\n              40.4323142901375\n            ],\n            [\n              -77.33001708984375,\n              40.967455873296714\n            ],\n            [\n              -78.17596435546875,\n              40.967455873296714\n            ],\n            [\n              -78.17596435546875,\n              40.4323142901375\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"514","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Bern, Carleton R. 0000-0002-8980-1781 cbern@usgs.gov","orcid":"https://orcid.org/0000-0002-8980-1781","contributorId":201152,"corporation":false,"usgs":true,"family":"Bern","given":"Carleton","email":"cbern@usgs.gov","middleInitial":"R.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":761537,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Yesavage, Tiffany 0000-0001-9433-763X","orcid":"https://orcid.org/0000-0001-9433-763X","contributorId":215057,"corporation":false,"usgs":false,"family":"Yesavage","given":"Tiffany","email":"","affiliations":[{"id":39167,"text":"USGS Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":false}],"preferred":false,"id":761538,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70203164,"text":"70203164 - 2019 - Calcrete uranium deposits in the Southern High Plains, USA","interactions":[],"lastModifiedDate":"2019-04-25T05:57:51","indexId":"70203164","displayToPublicDate":"2019-04-25T05:53:27","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2954,"text":"Ore Geology Reviews","active":true,"publicationSubtype":{"id":10}},"title":"Calcrete uranium deposits in the Southern High Plains, USA","docAbstract":"<div id=\"ab015\" class=\"abstract author\" lang=\"en\"><div id=\"as015\"><p id=\"sp0015\">The Southern High Plains (SHP) is a new and emerging U.S. uranium province. Here, uranyl vanadates form deposits in Pliocene to Pleistocene sandstone, dolomite, and limestone. Fifteen calcrete uranium occurrences are identified; two of these, the Buzzard Draw and Sulfur Springs Draw deposits, have combined in-place resources estimated at about 4 million pounds of U<sub>3</sub>O<sub>8</sub>. Ore minerals carnotite and finchite are hosted in dolomite at the Sulfur Springs Draw deposit, with accessory fluorite, celestine, smectite/illite, autunite, and strontium carbonate. Host carbonate at the Sulfur Springs Draw deposit is ∼190 ka and mineralization mobilized as recently as 3.8 ka. Ash collected near the deposit is 631 ka and erupted from the Yellowstone caldera complex. The Triassic Dockum Group that contains sandstone-hosted uranium deposits throughout the region and underlies the SHP is a potential source for uranium and vanadium. Regional uplift and dissection reintroduced oxygenated groundwater into the Dockum Group, mobilizing uranium. Additional uranium may have been contributed to groundwater by weathering of volcanic ash in Pliocene and Pleistocene host rocks. The locations of the uranium occurrences are mostly in modern drainage systems in the southeast portion of the SHP. Modelling of modern groundwater in the SHP carried out in a parallel study shows that a single fluid could form carnotite through evaporation, and that fluids of the requisite composition are more prevalent in the southern portion of the SHP. The southeastern portion of the SHP hosts more uranium occurrences due to a variety of factors including (1) upward transport of groundwater and connectivity between source and host rock, (2) higher uranium and vanadium content of groundwater, (3) higher rates of groundwater recharge in this region to drive the mineralizing system, and (4) shallower groundwater facilitating surface evaporation. Ongoing erosion of host rocks challenges preservation of deposits and may limit their size.</p></div></div>","language":"English","publisher":"Elsevier","doi":"10.1016/j.oregeorev.2019.03.036","usgsCitation":"Hall, S., Van Gosen, B.S., Paces, J.B., and Zielinski, R.A., 2019, Calcrete uranium deposits in the Southern High Plains, USA: Ore Geology Reviews, v. 109, p. 50-78, https://doi.org/10.1016/j.oregeorev.2019.03.036.","productDescription":"29 p.","startPage":"50","endPage":"78","ipdsId":"IP-098967","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true},{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true},{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"links":[{"id":460393,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.oregeorev.2019.03.036","text":"Publisher Index Page"},{"id":363218,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Southern High Plains","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -104.19433593749999,\n              31.700129553985924\n            ],\n            [\n              -99.5361328125,\n              31.700129553985924\n            ],\n            [\n              -99.5361328125,\n              36.01356058518153\n            ],\n            [\n              -104.19433593749999,\n              36.01356058518153\n            ],\n            [\n              -104.19433593749999,\n              31.700129553985924\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"109","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","contributors":{"authors":[{"text":"Hall, Susan 0000-0002-0931-8694","orcid":"https://orcid.org/0000-0002-0931-8694","contributorId":201829,"corporation":false,"usgs":true,"family":"Hall","given":"Susan","affiliations":[{"id":255,"text":"Energy Resources Program","active":true,"usgs":true},{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":761464,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Van Gosen, Bradley S. 0000-0003-4214-3811 bvangose@usgs.gov","orcid":"https://orcid.org/0000-0003-4214-3811","contributorId":1174,"corporation":false,"usgs":true,"family":"Van Gosen","given":"Bradley","email":"bvangose@usgs.gov","middleInitial":"S.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":761465,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Paces, James B. 0000-0002-9809-8493 jbpaces@usgs.gov","orcid":"https://orcid.org/0000-0002-9809-8493","contributorId":2514,"corporation":false,"usgs":true,"family":"Paces","given":"James","email":"jbpaces@usgs.gov","middleInitial":"B.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":761466,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Zielinski, Robert A. 0000-0002-4047-5129 rzielinski@usgs.gov","orcid":"https://orcid.org/0000-0002-4047-5129","contributorId":1593,"corporation":false,"usgs":true,"family":"Zielinski","given":"Robert","email":"rzielinski@usgs.gov","middleInitial":"A.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":761467,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70216034,"text":"70216034 - 2019 - Estimation bias in water-quality constituent concentrations and fluxes: A synthesis for Chesapeake Bay rivers and streams","interactions":[],"lastModifiedDate":"2020-11-04T00:26:49.503344","indexId":"70216034","displayToPublicDate":"2019-04-24T18:23:50","publicationYear":"2019","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3910,"text":"Frontiers in Ecology and Evolution","onlineIssn":"2296-701X","active":true,"publicationSubtype":{"id":10}},"title":"Estimation bias in water-quality constituent concentrations and fluxes: A synthesis for Chesapeake Bay rivers and streams","docAbstract":"<div class=\"JournalAbstract\"><p>Flux quantification for riverine water-quality constituents has been an active area of research. Statistical approaches are often employed to make estimation for days without observations. One such approach is the Weighted Regressions on Time, Discharge, and Season (WRTDS) method. While WRTDS has been used in many investigations, there is a general lack of effort to identify factors that influence its estimation bias. This work was aimed to (1) synthesize and compare WRTDS estimation bias for constituent concentrations and fluxes for rivers and streams in the Chesapeake Bay watershed (including headwater sites) and (2) identify controlling factors from five broad categories (watershed size, sampling practice, concentration and discharge conditions, land use, and geology). Five major constituents were considered, namely, suspended sediment (SS), total phosphorus (TP), total nitrogen (TN), orthophosphate (PO<sub>4</sub>), and nitrate-plus-nitrite (NO<sub>x</sub>). For both concentration and flux, estimation bias follows the general order of SS &gt; TP &gt; PO<sub>4</sub><span>&nbsp;</span>&gt; TN ≈ NO<sub>x</sub>. Median TN and NO<sub>x</sub><span>&nbsp;</span>bias statistics were near zero, with an equal distribution of small positive and negative bias. TP, PO<sub>4</sub>, and SS each showed a median positive bias across sites of &lt;18% for flux and &lt;7% for concentration. Particulate constituents, especially SS, tend to have larger bias at sites with smaller sampling frequencies, shorter sampling record lengths, and smaller watershed sizes. Results of multivariate models showed that both flux and concentration biases are most affected by concentration and discharge variabilities and the length of concentration record. In comparison, flux bias of particulate constituents is more affected by flow variability, whereas flux bias of dissolved constituents is more affected by concentration variability. Moreover, analysis using classification and regression trees provided additional information on how the factors affected flux bias: when all site-constituent combinations are considered, large flux biases are more likely associated with sites that have large concentration and discharge variabilities, small lengths of concentration record, and small sampling frequencies. These results may be useful for identifying sites with large biases, modifying monitoring practice at existing sites to reduce those biases, and choosing new monitoring locations in the Chesapeake watershed and beyond.</p></div>","language":"English","publisher":"Frontiers","doi":"10.3389/fevo.2019.00109","usgsCitation":"Zhang, Q., Blomquist, J.D., Moyer, D.L., and Chanat, J.G., 2019, Estimation bias in water-quality constituent concentrations and fluxes: A synthesis for Chesapeake Bay rivers and streams: Frontiers in Ecology and Evolution, v. 7, 109, 16 p., https://doi.org/10.3389/fevo.2019.00109.","productDescription":"109, 16 p.","ipdsId":"IP-103760","costCenters":[{"id":41514,"text":"Maryland-Delaware-District of Columbia  Water Science Center","active":true,"usgs":true}],"links":[{"id":467675,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3389/fevo.2019.00109","text":"Publisher Index Page"},{"id":380099,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Chesapeake Bay watershed","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -78.57421875,\n              37.23032838760387\n            ],\n            [\n              -74.8828125,\n              37.23032838760387\n            ],\n            [\n              -74.8828125,\n              42.00032514831621\n            ],\n            [\n              -78.57421875,\n              42.00032514831621\n            ],\n            [\n              -78.57421875,\n              37.23032838760387\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"7","noUsgsAuthors":false,"publicationDate":"2019-04-24","publicationStatus":"PW","contributors":{"authors":[{"text":"Zhang, Qian 0000-0003-0500-5655","orcid":"https://orcid.org/0000-0003-0500-5655","contributorId":174393,"corporation":false,"usgs":false,"family":"Zhang","given":"Qian","email":"","affiliations":[{"id":38802,"text":"University of Maryland Center for Environmental Studies","active":true,"usgs":false}],"preferred":false,"id":803832,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Blomquist, Joel D. 0000-0002-0140-6534","orcid":"https://orcid.org/0000-0002-0140-6534","contributorId":215461,"corporation":false,"usgs":true,"family":"Blomquist","given":"Joel","middleInitial":"D.","affiliations":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"preferred":true,"id":803833,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moyer, Douglas L. 0000-0001-6330-478X dlmoyer@usgs.gov","orcid":"https://orcid.org/0000-0001-6330-478X","contributorId":174389,"corporation":false,"usgs":true,"family":"Moyer","given":"Douglas","email":"dlmoyer@usgs.gov","middleInitial":"L.","affiliations":[{"id":37759,"text":"VA/WV Water Science Center","active":true,"usgs":true}],"preferred":true,"id":803834,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chanat, Jeffrey G. 0000-0002-3629-7307 jchanat@usgs.gov","orcid":"https://orcid.org/0000-0002-3629-7307","contributorId":5062,"corporation":false,"usgs":true,"family":"Chanat","given":"Jeffrey","email":"jchanat@usgs.gov","middleInitial":"G.","affiliations":[{"id":614,"text":"Virginia Water Science Center","active":true,"usgs":true}],"preferred":true,"id":803835,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
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