{"pageNumber":"525","pageRowStart":"13100","pageSize":"25","recordCount":69037,"records":[{"id":70182228,"text":"70182228 - 2015 - Denitrification in the Mississippi River network controlled by flow through river bedforms","interactions":[],"lastModifiedDate":"2020-09-01T14:28:52.992248","indexId":"70182228","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2845,"text":"Nature Geoscience","active":true,"publicationSubtype":{"id":10}},"title":"Denitrification in the Mississippi River network controlled by flow through river bedforms","docAbstract":"<p>Increasing nitrogen concentrations in the world’s major rivers have led to over-fertilization of sensitive downstream waters. Flow through channel bed and bank sediments acts to remove riverine nitrogen through microbe-mediated denitrification reactions. However, little is understood about where in the channel network this biophysical process is most efficient, why certain channels are more effective nitrogen reactors, and how management practices can enhance the removal of nitrogen in regions where water circulates through sediment and mixes with groundwater - hyporheic zones. Here we present numerical simulations of hyporheic flow and denitrification throughout the Mississippi River network using a hydrogeomorphic model. We find that vertical exchange with sediments beneath the riverbed in hyporheic zones, driven by submerged bedforms, has denitrification potential that far exceeds lateral hyporheic exchange with sediments alongside river channels, driven by river bars and meandering banks. We propose that geomorphic differences along river corridors can explain why denitrification efficiency varies between basins in the Mississippi River network. Our findings suggest that promoting the development of permeable bedforms at the streambed - and thus vertical hyporheic exchange - would be more effective at enhancing river denitrification in large river basins than promoting lateral exchange through induced channel meandering.</p>","language":"English","publisher":"Nature Publishing Group","doi":"10.1038/NGEO2567","usgsCitation":"Gomez-Velez, J., Harvey, J.W., Cardenas, M.B., and Kiel, B., 2015, Denitrification in the Mississippi River network controlled by flow through river bedforms: Nature Geoscience, v. 8, p. 941-945, https://doi.org/10.1038/NGEO2567.","productDescription":"5 p.","startPage":"941","endPage":"945","ipdsId":"IP-066691","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":29789,"text":"John Wesley Powell Center for Analysis and Synthesis","active":true,"usgs":true}],"links":[{"id":335897,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Mississippi River Network","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -96.15234375,\n              46.042735653846506\n            ],\n            [\n              -104.30419921875,\n              49.009050809382046\n            ],\n            [\n              -109.18212890625,\n              49.296471602658066\n            ],\n            [\n              -113.04931640625,\n              48.79239019646406\n            ],\n            [\n              -113.466796875,\n              45.1510532655634\n            ],\n            [\n              -112.7197265625,\n              43.61221676817573\n            ],\n            [\n              -105.3369140625,\n              40.094882122321145\n            ],\n            [\n              -102.12890625,\n              38.44498466889473\n            ],\n            [\n              -94.658203125,\n              37.96152331396614\n            ],\n            [\n              -87.890625,\n              36.10237644873644\n            ],\n            [\n              -85.517578125,\n              35.38904996691167\n            ],\n            [\n              -82.177734375,\n              37.23032838760387\n            ],\n            [\n              -81.5625,\n              36.73888412439431\n            ],\n            [\n              -81.9140625,\n              36.31512514748051\n            ],\n            [\n              -80.419921875,\n              36.87962060502676\n            ],\n            [\n              -78.92578124999999,\n              42.87596410238256\n            ],\n            [\n              -81.73828125,\n              40.97989806962013\n            ],\n            [\n              -84.287109375,\n              40.97989806962013\n            ],\n            [\n              -85.078125,\n              42.22851735620852\n            ],\n            [\n              -86.1328125,\n              42.5530802889558\n            ],\n            [\n              -87.275390625,\n              41.64007838467894\n            ],\n            [\n              -87.802734375,\n              42.293564192170095\n            ],\n            [\n              -87.890625,\n              43.068887774169625\n            ],\n            [\n              -91.845703125,\n              46.558860303117164\n            ],\n            [\n              -94.04296874999999,\n              47.81315451752768\n            ],\n            [\n              -95.09765625,\n              47.21956811231547\n            ],\n            [\n              -95.537109375,\n              46.800059446787316\n            ],\n            [\n              -96.15234375,\n              46.042735653846506\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"8","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2015-10-26","publicationStatus":"PW","scienceBaseUri":"58ad5fc3e4b01ccd54f8b527","contributors":{"authors":[{"text":"Gomez-Velez, Jesus D. jgomezvelez@usgs.gov","contributorId":5362,"corporation":false,"usgs":true,"family":"Gomez-Velez","given":"Jesus D.","email":"jgomezvelez@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":false,"id":670075,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harvey, Judson W. 0000-0002-2654-9873 jwharvey@usgs.gov","orcid":"https://orcid.org/0000-0002-2654-9873","contributorId":1796,"corporation":false,"usgs":true,"family":"Harvey","given":"Judson","email":"jwharvey@usgs.gov","middleInitial":"W.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":670074,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cardenas, M. Bayani","contributorId":181932,"corporation":false,"usgs":false,"family":"Cardenas","given":"M.","email":"","middleInitial":"Bayani","affiliations":[],"preferred":false,"id":670076,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kiel, Brian","contributorId":181933,"corporation":false,"usgs":false,"family":"Kiel","given":"Brian","email":"","affiliations":[],"preferred":false,"id":670077,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70194019,"text":"70194019 - 2015 - Optimization techniques using MODFLOW-GWM","interactions":[],"lastModifiedDate":"2017-12-11T15:20:49","indexId":"70194019","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Optimization techniques using MODFLOW-GWM","docAbstract":"An important application of optimization codes such as MODFLOW-GWM is to maximize water supply from unconfined aquifers subject to constraints involving surface-water depletion and drawdown. In optimizing pumping for a fish hatchery in a bedrock aquifer system overlain by glacial deposits in eastern Wisconsin, various features of the GWM-2000 code were used to overcome difficulties associated with: 1) Non-linear response matrices caused by unconfined conditions and head-dependent boundaries; 2) Efficient selection of candidate well and drawdown constraint locations; and 3) Optimizing against water-level constraints inside pumping wells. Features of GWM-2000 were harnessed to test the effects of systematically varying the decision variables and constraints on the optimized solution for managing withdrawals. An important lesson of the procedure, similar to lessons learned in model calibration, is that the optimized outcome is non-unique, and depends on a range of choices open to the user. The modeler must balance the complexity of the numerical flow model used to represent the groundwater-flow system against the range of options (decision variables, objective functions, constraints) available for optimizing the model.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"MODFLOW and More 2015: Modeling a complex world","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"Colorado School of Mines","usgsCitation":"Grava, A., Feinstein, D.T., Barlow, P.M., Bonomi, T., Buarne, F., Dunning, C., and Hunt, R.J., 2015, Optimization techniques using MODFLOW-GWM, <i>in</i> MODFLOW and More 2015: Modeling a complex world, p. 354-358.","productDescription":"5 p.","startPage":"354","endPage":"358","ipdsId":"IP-064939","costCenters":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"links":[{"id":349928,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"publishingServiceCenter":{"id":6,"text":"Columbus PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a60febde4b06e28e9c25349","contributors":{"authors":[{"text":"Grava, Anna","contributorId":200330,"corporation":false,"usgs":false,"family":"Grava","given":"Anna","email":"","affiliations":[],"preferred":false,"id":721940,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Feinstein, Daniel T. 0000-0003-1151-2530 dtfeinst@usgs.gov","orcid":"https://orcid.org/0000-0003-1151-2530","contributorId":1907,"corporation":false,"usgs":true,"family":"Feinstein","given":"Daniel","email":"dtfeinst@usgs.gov","middleInitial":"T.","affiliations":[{"id":37947,"text":"Upper Midwest Water Science Center","active":true,"usgs":true}],"preferred":true,"id":721939,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barlow, Paul M. 0000-0003-4247-6456 pbarlow@usgs.gov","orcid":"https://orcid.org/0000-0003-4247-6456","contributorId":1200,"corporation":false,"usgs":true,"family":"Barlow","given":"Paul","email":"pbarlow@usgs.gov","middleInitial":"M.","affiliations":[{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"preferred":true,"id":721941,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bonomi, Tullia","contributorId":200331,"corporation":false,"usgs":false,"family":"Bonomi","given":"Tullia","email":"","affiliations":[],"preferred":false,"id":721942,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Buarne, Fabiola","contributorId":200332,"corporation":false,"usgs":false,"family":"Buarne","given":"Fabiola","email":"","affiliations":[],"preferred":false,"id":721943,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dunning, Charles 0000-0002-0597-2058 cdunning@usgs.gov","orcid":"https://orcid.org/0000-0002-0597-2058","contributorId":174864,"corporation":false,"usgs":true,"family":"Dunning","given":"Charles","email":"cdunning@usgs.gov","affiliations":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":true,"id":721944,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hunt, Randall J. 0000-0001-6465-9304 rjhunt@usgs.gov","orcid":"https://orcid.org/0000-0001-6465-9304","contributorId":1129,"corporation":false,"usgs":true,"family":"Hunt","given":"Randall","email":"rjhunt@usgs.gov","middleInitial":"J.","affiliations":[{"id":677,"text":"Wisconsin Water Science Center","active":true,"usgs":true}],"preferred":true,"id":721945,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70174890,"text":"70174890 - 2015 - Contrasting fish assemblages in free-flowing and impounded tributaries to the Upper Delaware River: Implications for conserving biodiversity","interactions":[],"lastModifiedDate":"2016-08-03T16:26:44","indexId":"70174890","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Contrasting fish assemblages in free-flowing and impounded tributaries to the Upper Delaware River: Implications for conserving biodiversity","docAbstract":"<p>The Neversink River and the Beaver Kill in southeastern New York are major tributaries to the Delaware River, the longest undammed river east of the Mississippi. While the Beaver Kill is free flowing for its entire length, the Neversink River is subdivided by the Neversink Reservoir, which likely affects the diversity of local fish assemblages and health of aquatic ecosystems. The reservoir is an important part of the New York City waster-supply system that provides drinking water to more than 9 million people. Fish population and community data from recent quantitative surveys at comparable sites in both basins were assessed to characterize the differences between free-flowing and impounded rivers and the extent of reservoir effects to improve our capacity to define ecosystems responses that two modified flow-release programs (implemented in 2007 and 2011) should produce in the Neversink River. In general, the continuum of changes in fish assemblages which normally occur between headwaters and mouth was relatively uninterrupted in the Beaver Kill, but disrupted by the mid-basin impoundment in the Neversink River. Fish assemblages were also adversely affected at several acidified sites in the upper Neversink River, but not at most sites assessed herein. The reservoir clearly excluded diadromous species from the upper sub-basin, but it also substantially reduced community richness, diversity, and biomass at several mid-basin sites immediately downstream from the impoundment. There results will aid future attempts to determine if fish assemblages respond to more natural, yet highly regulated, flow regimes in the Neversink River. More important, knowledge gained from this study can help optimize use of valuable water resources while promoting species of special concern, such as American eel (Anguilla rostrata) and conserving biodiversity in Catskill Mountain streams.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Advances in Environmental Research","language":"English","publisher":"Nova Science Publishers, Inc.","collaboration":"The Nature Conservancy; Pike County PA; USGS","usgsCitation":"Baldigo, B.P., Delucia, M., Keller, W.D., Schuler, G.E., Apse, C.D., and Moberg, T., 2015, Contrasting fish assemblages in free-flowing and impounded tributaries to the Upper Delaware River: Implications for conserving biodiversity, chap. <i>of</i> Advances in Environmental Research, v. 45, p. 43-70.","productDescription":"28 p.","startPage":"43","endPage":"70","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-044340","costCenters":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"links":[{"id":326081,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":325458,"type":{"id":15,"text":"Index Page"},"url":"https://www.novapublishers.com/catalog/index.php"}],"volume":"45","publishingServiceCenter":{"id":11,"text":"Pembroke PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57a315bce4b006cb45558a48","contributors":{"authors":[{"text":"Baldigo, Barry P. 0000-0002-9862-9119 bbaldigo@usgs.gov","orcid":"https://orcid.org/0000-0002-9862-9119","contributorId":1234,"corporation":false,"usgs":true,"family":"Baldigo","given":"Barry","email":"bbaldigo@usgs.gov","middleInitial":"P.","affiliations":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true}],"preferred":true,"id":643012,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Delucia, Mari-Beth","contributorId":173018,"corporation":false,"usgs":false,"family":"Delucia","given":"Mari-Beth","email":"","affiliations":[{"id":7041,"text":"The Nature Conservancy","active":true,"usgs":false}],"preferred":false,"id":643015,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Keller, Walter D.","contributorId":14813,"corporation":false,"usgs":true,"family":"Keller","given":"Walter","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":643017,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schuler, George E.","contributorId":37005,"corporation":false,"usgs":true,"family":"Schuler","given":"George","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":643014,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Apse, Colin D.","contributorId":54680,"corporation":false,"usgs":true,"family":"Apse","given":"Colin","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":643013,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Moberg, Tara","contributorId":173019,"corporation":false,"usgs":false,"family":"Moberg","given":"Tara","email":"","affiliations":[{"id":7041,"text":"The Nature Conservancy","active":true,"usgs":false}],"preferred":false,"id":643016,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70193301,"text":"70193301 - 2015 - Copper toxicity and organic matter: Resiliency of watersheds in the Duluth Complex, Minnesota, USA","interactions":[],"lastModifiedDate":"2018-02-14T11:20:21","indexId":"70193301","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Copper toxicity and organic matter: Resiliency of watersheds in the Duluth Complex, Minnesota, USA","docAbstract":"<p>We estimated copper (Cu) toxicity in surface water with high dissolved organic matter (DOM) for unmined mineralized watersheds of the Duluth Complex using the Biotic Ligand Model (BLM), which evaluates the effect of DOM, cation competition for biologic binding sites, and metal speciation. A sediment-based BLM was used to estimate stream-sediment toxicity; this approach factors in the cumulative effects of multiple metals, incorporation of metals into less bioavailable sulfides, and complexation of metals with organic carbon. </p><p>For surface water, the formation of Cu-DOM complexes significantly reduces the amount of Cu available to aquatic organisms. The protective effects of cations, such as calcium (Ca) and magnesium (Mg), competing with Cu to complex with the biotic ligand is likely not as important as DOM in water with high DOM and low hardness. Standard hardness-based water quality criteria (WQC) are probably inadequate for describing Cu toxicity in such waters and a BLM approach may yield more accurate results. Nevertheless, assumptions about relative proportions of humic acid (HA) and fulvic acid (FA) in DOM significantly influence BLM results; the higher the HA fraction, the higher calculated resiliency of the water to Cu toxicity. Another important factor is seasonal variation in water chemistry, with greater resiliency to Cu toxicity during low flow compared to high flow.</p><p>Based on generally low total organic carbon and sulfur content, and equivalent metal ratios from total and weak partial extractions, much of the total metal concentration in clastic streambedsediments may be in bioavailable forms, sorbed on clays or hydroxide phases. However, organicrich fine-grained sediment in the numerous wetlands may sequester significant amount of metals, limiting their bioavailability. A high proportion of organic matter in waters and some sediments will play a key role in the resiliency of these watersheds to potential additional metal loads associated with future mining operations. </p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the 10th International Conference on Acid Rock Drainage and IMWA Annual Conference","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"International Mine Water Association","usgsCitation":"Piatak, N.M., Seal, R.R., Jones, P.M., and Woodruff, L.G., 2015, Copper toxicity and organic matter: Resiliency of watersheds in the Duluth Complex, Minnesota, USA, <i>in</i> Proceedings of the 10th International Conference on Acid Rock Drainage and IMWA Annual Conference, 10 p.","productDescription":"10 p.","ipdsId":"IP-059790","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":351595,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":347876,"type":{"id":15,"text":"Index Page"},"url":"https://www.imwa.info/imwaconferencesandcongresses/proceedings/293-proceedings-2015.html"}],"country":"United States","state":"Minnesota","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -92.22610473632811,\n              47.46059403884124\n            ],\n            [\n              -91.58752441406249,\n              47.46059403884124\n            ],\n            [\n              -91.58752441406249,\n              47.92830585913796\n            ],\n            [\n              -92.22610473632811,\n              47.92830585913796\n            ],\n            [\n              -92.22610473632811,\n              47.46059403884124\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5afeebeee4b0da30c1bfc69c","contributors":{"authors":[{"text":"Piatak, Nadine M. 0000-0002-1973-8537 npiatak@usgs.gov","orcid":"https://orcid.org/0000-0002-1973-8537","contributorId":193010,"corporation":false,"usgs":true,"family":"Piatak","given":"Nadine","email":"npiatak@usgs.gov","middleInitial":"M.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":718593,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Seal, Robert R. 0000-0003-0901-2529 rseal@usgs.gov","orcid":"https://orcid.org/0000-0003-0901-2529","contributorId":193011,"corporation":false,"usgs":true,"family":"Seal","given":"Robert","email":"rseal@usgs.gov","middleInitial":"R.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":250,"text":"Eastern Water Science Field Team","active":true,"usgs":true}],"preferred":true,"id":718594,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jones, Perry M. 0000-0002-6569-5144 pmjones@usgs.gov","orcid":"https://orcid.org/0000-0002-6569-5144","contributorId":2231,"corporation":false,"usgs":true,"family":"Jones","given":"Perry","email":"pmjones@usgs.gov","middleInitial":"M.","affiliations":[{"id":392,"text":"Minnesota Water Science Center","active":true,"usgs":true}],"preferred":true,"id":718595,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Woodruff, Laurel G. 0000-0002-2514-9923 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":718596,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70192204,"text":"70192204 - 2015 - 2014 status of the Lake Ontario lower trophic levels","interactions":[],"lastModifiedDate":"2020-03-05T12:03:17","indexId":"70192204","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":5114,"text":"NYSDEC Lake Ontario Annual Report ","active":true,"publicationSubtype":{"id":2}},"seriesNumber":"2014","chapter":"16","title":"2014 status of the Lake Ontario lower trophic levels","docAbstract":"<ol><li>Soluble reactive phosphorus (SRP) concentrations have been stable in nearshore and offshore habitats since 1998 (0.4 – 3.3 μg/L). SRP concentrations were low in 2014; Apr/May – Oct mean values were &lt;1 μg/L at most sites. Spring TP concentrations at individual sites exceeded 10 μg/L on occasion, but spring means were below the 10 μg/L target set by the Great Lakes Water Quality Agreement of 1978 for offshore waters of Lake Ontario. TP concentrations were low at both nearshore and offshore locations; Apr/May – Oct mean values from individual sites ranged from 4.6 – 9.1 μg/L. Spring TP has declined significantly in the longer data series (since 1981), but not since 1995 indicating stable nutrient loading into Lake Ontario for nearly two decades. It averaged 7.8 μg/L in the nearshore and 5.6 μg/L in the offshore in 2014.</li><li>Chlorophyll-a and secchi depth values are indicative of oligotrophic conditions in nearshore and offshore habitats. Offshore summer chlorophyll-a declined significantly in both the short- (2000-2014) and long-term (1981-2014) time series at a rate of 4-6% per year. Nearshore chlorophyll-a increased after 2003 but then declined again after 2009. Epilimnetic chlorophyll-a averaged between 0.6 and 1.6 μg/L across sites with no difference between nearshore and offshore habitats. Apr/May – Oct Secchi depth ranged from 4.0 m to 10.8 m at individual sites and was higher in the offshore (average 9.1 m) than nearshore (5.9 m).</li><li>In 2014, Apr/May – Oct epilimnetic zooplankton density, size, and biomass were not different between the offshore and the nearshore, and there were no differences in epilimnetic biomass between offshore and nearshore areas for any of the zooplankton groups.</li><li>Zooplankton density and biomass peaked in September, an atypical pattern. This coincided with peaks in calanoid copepod, daphnid, and Holopedium biomass. Holopedium biomass in the nearshore increased significantly since 1995.</li><li>The predatory cladoceran Cercopagis continued to be abundant in the summer, peaking at ~10 mg/m3in the offshore. Bythotrephes biomass was at its lowest level since 2005 in both offshore and nearshore habitats.</li><li>Summer nearshore zooplankton density and biomass have declined significantly since 1995 at rates of 9-10% per year but have remained stable since 2005. However, bosminids and daphnids increased in 2013 and 2014.</li><li>Summer offshore zooplankton density and biomass declined significantly in the long-term (since 1981), but remained at a lower stable level 2000 – 2014. A positive change point in 2013 is due to increases in bosminids, cyclopoid copepods, and daphnids.</li><li>The observed decline in zooplankton biomass may be due in part to redistribution of zooplankton throughout the water column. Most of the zooplankton biomass was in the metalimnion and hypolimnion during the stratified period in 2014. By October, the bulk of the biomass was in the epilimnion.</li></ol>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"2014 Annual report: Bureau of Fisheries, Lake Ontario unit and St. Lawrence River unit, to the Great Lakes Fishery Commission’s Lake Ontario Committee","largerWorkSubtype":{"id":2,"text":"State or Local Government Series"},"conferenceTitle":"Lake Ontario Committee Meeting","conferenceDate":"March 24-25, 2015","conferenceLocation":"Ypsilanti, MI","language":"English","publisher":"New York State Department of Environmental Conservation","publisherLocation":"Albany, NY","usgsCitation":"Holeck, K.T., Rudstam, L.G., Hotaling, C., McCullough, R., Lemon, D., Pearsall, W., Lantry, J., Connerton, M., LaPan, S., Biesinger, Z., Lantry, B.F., Walsh, M., and Weidel, B., 2015, 2014 status of the Lake Ontario lower trophic levels: NYSDEC Lake Ontario Annual Report  2014, 28 p.","productDescription":"28 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,{"id":70193300,"text":"70193300 - 2015 - Oxic to anoxic transition in bottom waters during formation of the Citronen Fjord sediment-hosted Zn-Pb deposit, North Greenland","interactions":[],"lastModifiedDate":"2018-02-14T11:23:04","indexId":"70193300","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Oxic to anoxic transition in bottom waters during formation of the Citronen Fjord sediment-hosted Zn-Pb deposit, North Greenland","docAbstract":"Bulk geochemical data acquired for host sedimentary rocks to the Late Ordovician Citronen Fjord sediment-hosted Zn-Pb deposit in North Greenland constrain the redox state of bottom waters prior to and during sulphide mineralization. Downhole profiles for one drill core show trends for redox proxies (MnO, Mo, Ce anomalies) that suggest the local basin bottom waters were initially oxic, changing to anoxic and locally sulphidic concurrent with sulphide mineralization. We propose that this major redox change was caused by two broadly coeval processes (1) emplacement of debris-flow conglomerates that sealed off the basin from oxic seawater, and (2) venting of reduced hydrothermal fluids into the basin. Both processes may have increased H2S in bottom waters and thus prevented the oxidation of sulphides on the sea floor.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"13th Biennial Meeting of the Society for Geology Applied to Mineral Deposits","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"Society for Geology Applied to Mineral Deposits","usgsCitation":"Slack, J.F., Rosa, D., and Falck, H., 2015, Oxic to anoxic transition in bottom waters during formation of the Citronen Fjord sediment-hosted Zn-Pb deposit, North Greenland, <i>in</i> 13th Biennial Meeting of the Society for Geology Applied to Mineral Deposits, v. 5, p. 2013-2016.","productDescription":"4 p.","startPage":"2013","endPage":"2016","ipdsId":"IP-063729","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":351596,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5afeebefe4b0da30c1bfc69e","contributors":{"authors":[{"text":"Slack, John F. 0000-0001-6600-3130 jfslack@usgs.gov","orcid":"https://orcid.org/0000-0001-6600-3130","contributorId":1032,"corporation":false,"usgs":true,"family":"Slack","given":"John","email":"jfslack@usgs.gov","middleInitial":"F.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true},{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":718590,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rosa, Diogo","contributorId":199301,"corporation":false,"usgs":false,"family":"Rosa","given":"Diogo","email":"","affiliations":[],"preferred":false,"id":718591,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Falck, Hendrik","contributorId":167705,"corporation":false,"usgs":false,"family":"Falck","given":"Hendrik","email":"","affiliations":[{"id":24811,"text":"NWT Geoscience Office, Yellowknife, Canada","active":true,"usgs":false}],"preferred":false,"id":718592,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70177814,"text":"70177814 - 2015 - Estimating sturgeon abundance in the Carolinas using side-scan sonar","interactions":[],"lastModifiedDate":"2016-10-21T16:26:31","indexId":"70177814","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2680,"text":"Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science","active":true,"publicationSubtype":{"id":10}},"title":"Estimating sturgeon abundance in the Carolinas using side-scan sonar","docAbstract":"<p><span>Sturgeons (Acipenseridae) are one of the most threatened taxa worldwide, including species in North Carolina and South Carolina. Populations of Atlantic Sturgeon </span><i>Acipenser oxyrinchus</i><span> in the Carolinas have been significantly reduced from historical levels by a combination of intense fishing and habitat loss. There is a need for estimates of current abundance, to describe status, and for estimates of historical abundance in order to provide realistic recovery goals. In this study we used </span><i>N</i><span>-mixture and distance models with data acquired from side-scan sonar surveys to estimate abundance of sturgeon in six major sturgeon rivers in North Carolina and South Carolina. Estimated abundances of sturgeon greater than 1&nbsp;m TL in the Carolina distinct population segment (DPS) were 2,031 using the count model and 1,912 via the distance model. The Pee Dee River had the highest overall abundance of any river at 1,944 (count model) or 1,823 (distance model). These estimates do not account for sturgeon less than 1&nbsp;m TL or occurring in riverine reaches not surveyed or in marine waters. Comparing the two models, the </span><i>N</i><span>-mixture model produced similar estimates using less data than the distance model with only a slight reduction of estimated precision.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.1080/19425120.2014.982334","usgsCitation":"Flowers, H.J., and Hightower, J.E., 2015, Estimating sturgeon abundance in the Carolinas using side-scan sonar: Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, v. 7, no. 1, p. 1-9, https://doi.org/10.1080/19425120.2014.982334.","productDescription":"9 p.","startPage":"1","endPage":"9","ipdsId":"IP-055971","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":472567,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1080/19425120.2014.982334","text":"Publisher Index Page"},{"id":330333,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"1","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationDate":"2015-03-11","publicationStatus":"PW","scienceBaseUri":"5810c700e4b0f497e79734bf","contributors":{"authors":[{"text":"Flowers, H. Jared","contributorId":140974,"corporation":false,"usgs":false,"family":"Flowers","given":"H.","email":"","middleInitial":"Jared","affiliations":[],"preferred":false,"id":651861,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hightower, Joseph E. jhightower@usgs.gov","contributorId":835,"corporation":false,"usgs":true,"family":"Hightower","given":"Joseph","email":"jhightower@usgs.gov","middleInitial":"E.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":651860,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70143409,"text":"70143409 - 2015 - Causes and consequences of ecosystem service regionalization in a coastal suburban watershed","interactions":[],"lastModifiedDate":"2015-03-19T09:06:03","indexId":"70143409","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1584,"text":"Estuaries and Coasts","active":true,"publicationSubtype":{"id":10}},"title":"Causes and consequences of ecosystem service regionalization in a coastal suburban watershed","docAbstract":"<p><span>The demand for ecosystem services and the ability of natural ecosystems to provide those services evolve over time as population, land use, and management practices change. Regionalization of ecosystem service activity, or the expansion of the area providing ecosystem services to a population, is a common response in densely populated coastal regions, with important consequences for watershed water and nitrogen (N) fluxes to the coastal zone. We link biophysical and historical information to explore the causes and consequences of change in ecosystem service activity&mdash;focusing on water provisioning and N regulation&mdash;from 1850 to 2010 in a coastal suburban watershed, the Ipswich River watershed in northeastern Massachusetts, USA. Net interbasin water transfers started in the late 1800s due to regionalization of water supply for use by larger populations living outside the Ipswich watershed boundaries, reaching a peak in the mid-1980s. Over much of the twentieth century, about 20&nbsp;% of river runoff was diverted from reaching the estuary, with greater proportions during drought years. Ongoing regionalization of water supply has contributed to recent declines in diversions, influenced by socioecological feedbacks resulting from the river drying and fish kills. Similarly, the N budget has been greatly perturbed since the suburban era began in the 1950s due to food and lawn fertilizer imports and human waste release. However, natural ecosystems are able to remove most of this anthropogenic N, mitigating impacts on the coastal zone. We propose a conceptual model whereby the amount and type of ecosystem services provided by coastal watersheds in urban regions expand and contract over time as regional population expands and ecosystem services are regionalized. We hypothesize that suburban watersheds can be hotspots of ecosystem service sources because they retain sufficient ecosystem function to still produce services that meet increasing demand from the local population and nearby urban centers. Historical reconstruction of ecosystem service activity provides a perspective that may help to better understand coupled human&ndash;natural system processes and lead to more sustainable management of coastal ecosystems.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s12237-013-9646-8","usgsCitation":"Wollheim, W.M., Green, M.B., Pellerin, B.A., Morse, N.B., and Hopkinson, C.S., 2015, Causes and consequences of ecosystem service regionalization in a coastal suburban watershed: Estuaries and Coasts, v. 1, no. 38, p. 19-34, https://doi.org/10.1007/s12237-013-9646-8.","productDescription":"16 p.","startPage":"19","endPage":"34","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-043983","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":472577,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1007/s12237-013-9646-8","text":"Publisher Index Page"},{"id":298737,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Massachusetts","otherGeospatial":"Ipswich River watershed","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -71.02159023284912,\n              42.562879746999684\n            ],\n            [\n              -71.02159023284912,\n              42.56935918843573\n            ],\n            [\n              -71.00137710571288,\n              42.56935918843573\n            ],\n            [\n              -71.00137710571288,\n              42.562879746999684\n            ],\n            [\n              -71.02159023284912,\n              42.562879746999684\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"1","issue":"38","publishingServiceCenter":{"id":1,"text":"Sacramento PSC"},"noUsgsAuthors":false,"publicationDate":"2013-06-07","publicationStatus":"PW","scienceBaseUri":"550bf32be4b02e76d759cddd","contributors":{"authors":[{"text":"Wollheim, Wilfred M.","contributorId":139742,"corporation":false,"usgs":false,"family":"Wollheim","given":"Wilfred","email":"","middleInitial":"M.","affiliations":[{"id":18105,"text":"University of New Hampshire, Durham","active":true,"usgs":false}],"preferred":false,"id":542725,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Green, Mark B.","contributorId":139746,"corporation":false,"usgs":false,"family":"Green","given":"Mark","email":"","middleInitial":"B.","affiliations":[{"id":590,"text":"U.S. Army Corps of Engineers","active":false,"usgs":false}],"preferred":false,"id":542723,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pellerin, Brian A. bpeller@usgs.gov","contributorId":1451,"corporation":false,"usgs":true,"family":"Pellerin","given":"Brian","email":"bpeller@usgs.gov","middleInitial":"A.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":false,"id":542721,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Morse, Nathaniel B.","contributorId":139747,"corporation":false,"usgs":false,"family":"Morse","given":"Nathaniel","email":"","middleInitial":"B.","affiliations":[{"id":590,"text":"U.S. Army Corps of Engineers","active":false,"usgs":false}],"preferred":false,"id":542724,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hopkinson, Charles S.","contributorId":139745,"corporation":false,"usgs":false,"family":"Hopkinson","given":"Charles","email":"","middleInitial":"S.","affiliations":[{"id":590,"text":"U.S. Army Corps of Engineers","active":false,"usgs":false}],"preferred":false,"id":542722,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70191888,"text":"70191888 - 2015 - Ground-based thermal imaging of stream surface temperatures: Technique and evaluation","interactions":[],"lastModifiedDate":"2018-01-26T11:09:56","indexId":"70191888","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Ground-based thermal imaging of stream surface temperatures: Technique and evaluation","docAbstract":"<p><span>We evaluated a ground-based handheld thermal imaging system for measuring water temperatures using data from eight southwestern USA streams and rivers. We found handheld thermal imagers could provide considerably more spatial information on water temperature (for our unit one image = 19,600 individual temperature measurements) than traditional methods could supply without a prohibitive amount of effort. Furthermore, they could provide measurements of stream surface temperature almost instantaneously compared with most traditional handheld thermometers (e.g., &gt;20&nbsp;s/reading). Spatial temperature analysis is important for measurement of subtle temperature differences across waterways, and identification of warm and cold groundwater inputs. Handheld thermal imaging is less expensive and equipment intensive than airborne thermal imaging methods and is useful under riparian canopies. Disadvantages of handheld thermal imagers include their current higher expense than thermometers, their susceptibility to interference when used incorrectly, and their slightly lower accuracy than traditional temperature measurement methods. Thermal imagers can only measure surface temperature, but this usually corresponds to subsurface temperatures in well-mixed streams and rivers. Using thermal imaging in select applications, such as where spatial investigations of water temperature are needed, or in conjunction with stationary temperature data loggers or handheld electronic or liquid-in-glass thermometers to characterize stream temperatures by both time and space, could provide valuable information on stream temperature dynamics. These tools will become increasingly important to fisheries biologists as costs continue to decline.</span></p>","language":"English","publisher":"Wiley","doi":"10.1080/02755947.2015.1091410","usgsCitation":"Bonar, S.A., and Petre, S.J., 2015, Ground-based thermal imaging of stream surface temperatures: Technique and evaluation: North American Journal of Fisheries Management, v. 35, no. 6, p. 1209-1218, https://doi.org/10.1080/02755947.2015.1091410.","productDescription":"10 p.","startPage":"1209","endPage":"1218","ipdsId":"IP-057935","costCenters":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"links":[{"id":350648,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"35","issue":"6","publishingServiceCenter":{"id":12,"text":"Tacoma PSC"},"noUsgsAuthors":false,"publicationDate":"2015-12-02","publicationStatus":"PW","scienceBaseUri":"5a6c4c98e4b06e28e9cabb16","contributors":{"authors":[{"text":"Bonar, Scott A. 0000-0003-3532-4067 sbonar@usgs.gov","orcid":"https://orcid.org/0000-0003-3532-4067","contributorId":3712,"corporation":false,"usgs":true,"family":"Bonar","given":"Scott","email":"sbonar@usgs.gov","middleInitial":"A.","affiliations":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"preferred":true,"id":713546,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Petre, Sally J.","contributorId":197664,"corporation":false,"usgs":false,"family":"Petre","given":"Sally","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":725876,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70185999,"text":"70185999 - 2015 - Vegetation composition, nutrient, and sediment dynamics along a floodplain landscape","interactions":[],"lastModifiedDate":"2017-03-30T15:31:53","indexId":"70185999","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3302,"text":"River Systems","active":true,"publicationSubtype":{"id":10}},"title":"Vegetation composition, nutrient, and sediment dynamics along a floodplain landscape","docAbstract":"<p><span>Forested floodplains are important landscape features for retaining river nutrients and sediment loads but there is uncertainty in how vegetation influences nutrient and sediment retention. In order to understand the role of vegetation in nutrient and sediment trapping, we quantified species composition and the uptake of nutrients in plant material relative to landscape position and ecosystem attributes in an urban, Piedmont watershed in Virginia, USA. We investigated in situ interactions among vegetative composition, abundance, carbon (C), nitrogen (N) and phosphorus (P) fluxes and ecosystem attributes such as water level, shading, soil nutrient mineralization, and sediment deposition. This study revealed strong associations between vegetation and nutrient and sediment cycling processes at the plot scale and in the longitudinal dimension, but there were few strong patterns between these aspects at the scale of geomorphic features (levee, backswamp, and toe-slope). Patterns reflected the nature of the valley setting rather than a simple downstream continuum. Plant nutrient uptake and sediment trapping were greatest at downstream sites with the widest floodplain and lowest gradient where the hydrologic connection between the floodplain and stream is greater. Sediment trapping increased in association with higher herbaceous plant coverage and lower tree canopy density that, in turn, was associated with a more water tolerant tree community found in the lower watershed but not at the most downstream site in the watershed. Despite urbanization effects on the hydrology, this floodplain functioned as an efficient nutrient trap. N and P flux rates of herbaceous biomass and total litterfall more than accounted for the N and P mineralization flux rate, indicating that vegetation incorporated nearly all mineralized nutrients into biomass.</span></p>","language":"English","publisher":"E. Schweizerbart’sche Verlagsbuchhandlung","doi":"10.1127/rs/2015/0097","usgsCitation":"Rybicki, N.B., Noe, G.E., Hupp, C.R., and Robinson, M., 2015, Vegetation composition, nutrient, and sediment dynamics along a floodplain landscape: River Systems, v. 21, no. 2-3, p. 109-123, https://doi.org/10.1127/rs/2015/0097.","productDescription":"15 p.","startPage":"109","endPage":"123","ipdsId":"IP-065247","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":338850,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Virginia","volume":"21","issue":"2-3","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58de1950e4b02ff32c699cad","contributors":{"authors":[{"text":"Rybicki, Nancy B. 0000-0002-2205-7927 nrybicki@usgs.gov","orcid":"https://orcid.org/0000-0002-2205-7927","contributorId":2142,"corporation":false,"usgs":true,"family":"Rybicki","given":"Nancy","email":"nrybicki@usgs.gov","middleInitial":"B.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":687305,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Noe, Gregory E. 0000-0002-6661-2646 gnoe@usgs.gov","orcid":"https://orcid.org/0000-0002-6661-2646","contributorId":139100,"corporation":false,"usgs":true,"family":"Noe","given":"Gregory","email":"gnoe@usgs.gov","middleInitial":"E.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":40020,"text":"Florence Bascom Geoscience Center","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":687306,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hupp, Cliff R. 0000-0003-1853-9197 crhupp@usgs.gov","orcid":"https://orcid.org/0000-0003-1853-9197","contributorId":2344,"corporation":false,"usgs":true,"family":"Hupp","given":"Cliff","email":"crhupp@usgs.gov","middleInitial":"R.","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}],"preferred":true,"id":687307,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Robinson, Myles","contributorId":190115,"corporation":false,"usgs":false,"family":"Robinson","given":"Myles","email":"","affiliations":[],"preferred":false,"id":687308,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70184998,"text":"70184998 - 2015 - Lahars at Cotopaxi and Tungurahua Volcanoes, Ecuador: Highlights from stratigraphy and observational records and related downstream hazards","interactions":[],"lastModifiedDate":"2022-12-08T14:49:53.877779","indexId":"70184998","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"6","title":"Lahars at Cotopaxi and Tungurahua Volcanoes, Ecuador: Highlights from stratigraphy and observational records and related downstream hazards","docAbstract":"<p><span>Lahars are volcanic debris flows that are dubbed primary when triggered by eruptive activity or secondary when triggered by other factors such as heavy rainfall after eruptive activity has waned. Variation in time and space of the proportion of sediment to water within a lahar dictates lahar flow phase and the resultant sedimentary character of deposits. Characteristics of source material and of debris eroded and incorporated during flow downstream may strongly affect the grain-size composition of flowing lahars and their deposits. Lahars borne on the flanks of two steep-sided stratocones in Ecuador exemplify two important lahar types. Glacier-clad Cotopaxi volcano has been a producer of primary lahars that flow great distances downstream. Such primary lahars include those of both clast-rich and matrix-rich composition—some of which have flowed as far as 325&nbsp;km to the Pacific Ocean. Cotopaxi's last important eruption in 1877 generated formidable syneruptive lahars comparable in size to those that buried Armero, Colombia, following the 1985 eruption of Nevado del Ruiz volcano. In contrast, ash-producing eruptive activity during the past 15&nbsp;years at Tungurahua volcano has generated a continual supply of fresh volcaniclastic debris that is regularly remobilized by precipitation. Between 2000 and 2011, 886 rain-generated lahars were registered at Tungurahua. These two volcanoes pose dramatically different hazards to nearby populations. At Tungurahua, the frequency and small sizes of lahars have resulted in effective mitigation measures. At Cotopaxi 137&nbsp;years have passed since the last important lahar-producing eruption, and there is now a high-risk situation for more than 100,000 people living in downstream valleys.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Volcanic hazards, risks and disasters","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Elsevier","doi":"10.1016/B978-0-12-396453-3.00006-X","usgsCitation":"Mothes, P.A., and Vallance, J.W., 2015, Lahars at Cotopaxi and Tungurahua Volcanoes, Ecuador: Highlights from stratigraphy and observational records and related downstream hazards, chap. 6 <i>of</i> Volcanic hazards, risks and disasters, p. 141-168, https://doi.org/10.1016/B978-0-12-396453-3.00006-X.","productDescription":"28 p.","startPage":"141","endPage":"168","ipdsId":"IP-055950","costCenters":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":337703,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Ecuador","otherGeospatial":"Cotopaxi volcano, Tungurahua volcano","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -79,\n              -0.1\n            ],\n            [\n              -79,\n              -1.75\n            ],\n            [\n              -78.25,\n              -1.75\n            ],\n            [\n              -78.25,\n              -0.1\n            ],\n            [\n              -79,\n              -0.1\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58cba41de4b0849ce97dc756","contributors":{"authors":[{"text":"Mothes, Patricia A","contributorId":189114,"corporation":false,"usgs":false,"family":"Mothes","given":"Patricia","email":"","middleInitial":"A","affiliations":[],"preferred":false,"id":683885,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Vallance, James W. 0000-0002-3083-5469 jvallance@usgs.gov","orcid":"https://orcid.org/0000-0002-3083-5469","contributorId":547,"corporation":false,"usgs":true,"family":"Vallance","given":"James","email":"jvallance@usgs.gov","middleInitial":"W.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":683884,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70188370,"text":"70188370 - 2015 - Determination of (4-methylcyclohexyl)methanol isomers by heated purge-and-trap GC/MS in water samples from the 2014 Elk River, West Virginia, chemical spill","interactions":[],"lastModifiedDate":"2017-06-07T11:30:14","indexId":"70188370","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1226,"text":"Chemosphere","active":true,"publicationSubtype":{"id":10}},"title":"Determination of (4-methylcyclohexyl)methanol isomers by heated purge-and-trap GC/MS in water samples from the 2014 Elk River, West Virginia, chemical spill","docAbstract":"<p><span>A heated purge-and-trap gas chromatography/mass spectrometry method was used to determine the </span><i>cis</i><span>- and </span><i>trans</i><span>-isomers of (4-methylcyclohexyl)methanol (4-MCHM), the reported major component of the Crude MCHM/Dowanol™ PPh glycol ether material spilled into the Elk River upriver from Charleston, West Virginia, on January 9, 2014. The </span><i>trans</i><span>-isomer eluted first and method detection limits were 0.16-μg&nbsp;L</span><sup>−1</sup><i>trans</i><span>-, 0.28-μg&nbsp;L</span><sup>−1</sup><i>cis</i><span>-, and 0.4-μg&nbsp;L</span><sup>−1</sup><span> Total (total response of isomers) 4-MCHM. Estimated concentrations in the spill source material were 491-g&nbsp;L</span><sup>−1</sup><i>trans</i><span>- and 277-g&nbsp;L</span><sup>−1</sup><i>cis</i><span>-4-MCHM, the sum constituting 84% of the source material assuming its density equaled 4-MCHM. Elk River samples collected&nbsp;⩽&nbsp;3.2&nbsp;km downriver from the spill on January 15 had low (⩽2.9&nbsp;μg&nbsp;L</span><sup>−1</sup><span> Total) 4-MCHM concentrations, whereas the isomers were not detected in samples collected 2 d earlier at the same sites. Similar 4-MCHM concentrations (range 4.2–5.5&nbsp;μg&nbsp;L</span><sup>−1</sup><span> Total) occurred for samples of the Ohio River at Louisville, Kentucky, on January 17, ∼630&nbsp;km downriver from the spill. Total 4-MCHM concentrations in Charleston, WV, office tap water decreased from 129&nbsp;μg&nbsp;L</span><sup>−1</sup><span> on January 27 to 2.2&nbsp;μg&nbsp;L</span><sup>−1</sup><span>on February 3, but remained detectable in tap samples through final collection on February 25 indicating some persistence of 4-MCHM within the water distribution system. One isomer of methyl 4-methylcyclohexanecarboxylate was detected in all Ohio River and tap water samples, and both isomers were detected in the source material spilled.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.chemosphere.2014.11.006","usgsCitation":"Foreman, W.T., Rose, D.L., Chambers, D., Crain, A.S., Murtagh, L.K., Thakellapalli, H., and Wang, K.K., 2015, Determination of (4-methylcyclohexyl)methanol isomers by heated purge-and-trap GC/MS in water samples from the 2014 Elk River, West Virginia, chemical spill: Chemosphere, v. 131, p. 217-224, https://doi.org/10.1016/j.chemosphere.2014.11.006.","productDescription":"8 p.","startPage":"217","endPage":"224","ipdsId":"IP-056989","costCenters":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true}],"links":[{"id":472428,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.chemosphere.2014.11.006","text":"Publisher Index Page"},{"id":342219,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"West Virginia","otherGeospatial":"Elk River","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -86.044921875,\n              38.09998264736481\n            ],\n            [\n              -81.14501953125,\n              38.09998264736481\n            ],\n            [\n              -81.14501953125,\n              38.70265930723801\n            ],\n            [\n              -86.044921875,\n              38.70265930723801\n            ],\n            [\n              -86.044921875,\n              38.09998264736481\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"131","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"593910b3e4b0764e6c5e88bf","contributors":{"authors":[{"text":"Foreman, William T. 0000-0002-2530-3310 wforeman@usgs.gov","orcid":"https://orcid.org/0000-0002-2530-3310","contributorId":190786,"corporation":false,"usgs":true,"family":"Foreman","given":"William","email":"wforeman@usgs.gov","middleInitial":"T.","affiliations":[{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true},{"id":503,"text":"Office of Water Quality","active":true,"usgs":true},{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true}],"preferred":true,"id":697422,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rose, Donna L. 0000-0003-1216-9914 dlrose@usgs.gov","orcid":"https://orcid.org/0000-0003-1216-9914","contributorId":4546,"corporation":false,"usgs":true,"family":"Rose","given":"Donna","email":"dlrose@usgs.gov","middleInitial":"L.","affiliations":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true}],"preferred":true,"id":697423,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chambers, Douglas B. 0000-0002-5275-5427 dbchambe@usgs.gov","orcid":"https://orcid.org/0000-0002-5275-5427","contributorId":2520,"corporation":false,"usgs":true,"family":"Chambers","given":"Douglas B.","email":"dbchambe@usgs.gov","affiliations":[{"id":642,"text":"West Virginia Water Science Center","active":true,"usgs":true}],"preferred":true,"id":697424,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Crain, Angela S. 0000-0003-0969-6238 ascrain@usgs.gov","orcid":"https://orcid.org/0000-0003-0969-6238","contributorId":3090,"corporation":false,"usgs":true,"family":"Crain","given":"Angela","email":"ascrain@usgs.gov","middleInitial":"S.","affiliations":[{"id":354,"text":"Kentucky Water Science Center","active":true,"usgs":true},{"id":27231,"text":"Indiana-Kentucky Water Science Center","active":true,"usgs":true}],"preferred":true,"id":697426,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Murtagh, Lucinda K. 0000-0003-2885-4385 lmurtagh@usgs.gov","orcid":"https://orcid.org/0000-0003-2885-4385","contributorId":5382,"corporation":false,"usgs":true,"family":"Murtagh","given":"Lucinda","email":"lmurtagh@usgs.gov","middleInitial":"K.","affiliations":[{"id":5046,"text":"Branch of Analytical Serv (NWQL)","active":true,"usgs":true}],"preferred":true,"id":697425,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Thakellapalli, Haresh 0000-0002-2432-489X","orcid":"https://orcid.org/0000-0002-2432-489X","contributorId":192701,"corporation":false,"usgs":false,"family":"Thakellapalli","given":"Haresh","email":"","affiliations":[],"preferred":false,"id":697427,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Wang, Kung K. 0000-0001-7039-2984","orcid":"https://orcid.org/0000-0001-7039-2984","contributorId":192702,"corporation":false,"usgs":false,"family":"Wang","given":"Kung","email":"","middleInitial":"K.","affiliations":[],"preferred":false,"id":697428,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70148029,"text":"70148029 - 2015 - Chronology and ecology of late Pleistocene megafauna in the northern Willamette Valley, Oregon","interactions":[],"lastModifiedDate":"2019-04-24T16:24:08","indexId":"70148029","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Chronology and ecology of late Pleistocene megafauna in the northern Willamette Valley, Oregon","docAbstract":"<p><span>Since the mid-19th century, western Oregon's Willamette Valley has been a source of remains from a wide variety of extinct megafauna. Few of these have been previously described or dated, but new chronologic and isotopic analyses in conjunction with updated evaluations of stratigraphic context provide substantial new information on the species present, timing of losses, and paleoenvironmental conditions. Using subfossil material from the northern valley, we use AMS radiocarbon dating, stable isotope (&delta;</span><sup>13</sup><span>C and &delta;</span><sup>15</sup><span>N) analyses, and taxonomic dietary specialization and habitat preferences to reconstruct environments and to develop a local chronology of events that we then compare with continental and regional archaeological and paleoenvironmental data. Analysis of twelve bone specimens demonstrates the presence of bison, mammoth, horse, sloth, and mastodon from ~&nbsp;15,000&ndash;13,000&nbsp;cal&nbsp;yr&nbsp;BP. The latest ages coincide with changing regional climate corresponding to the onset of the Younger Dryas. It is suggested that cooling conditions led to increased forest cover, and, along with river aggradation, reduced the area of preferred habitat for the larger bodied herbivores, which contributed to the demise of local megafauna. Archaeological evidence for megafauna&ndash;human interactions in the Pacific Northwest is scarce, limiting our ability to address the human role in causing extinction.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.yqres.2014.09.003","usgsCitation":"Gilmour, D.M., Butler, V.L., O'Connor, J., Davis, E.B., Culleton, B.J., Kennett, D.J., and Hodgins, G.W., 2015, Chronology and ecology of late Pleistocene megafauna in the northern Willamette Valley, Oregon: Quaternary Research, v. 83, no. 1, p. 127-136, https://doi.org/10.1016/j.yqres.2014.09.003.","productDescription":"10 p.","startPage":"127","endPage":"136","numberOfPages":"10","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-053865","costCenters":[{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true},{"id":615,"text":"Volcano Hazards 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,{"id":70158940,"text":"70158940 - 2015 - Acidic deposition along the Appalachian Trail corridor and its effects on acid-sensitive terrestrial and aquatic resources","interactions":[],"lastModifiedDate":"2020-03-11T11:00:52","indexId":"70158940","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Acidic deposition along the Appalachian Trail corridor and its effects on acid-sensitive terrestrial and aquatic resources","docAbstract":"The Appalachian National Scenic Trail (AT), a unit of the National Park Service (NPS), spans nearly 2,200 miles from Georgia to Maine, encompassing a diverse range of ecosystems. Acidic deposition (acid rain) threatens the AT’s natural resources. Acid rain is a result of sulfur (S) and nitrogen (N) compounds produced from fossil fuel combustion, motor vehicles, and agricultural practices. The AT is particularly vulnerable to S and N because it passes along ridgetops that receive higher levels of acid rain than lower valley terrain, and these ridges are often underlain by bedrock with minimal ability to buffer acidic inputs. Further, there are numerous S and N emission sources across the region. In the environment, acidic deposition can lower the pH of streams and soils which can ultimately affect fish, invertebrates, and vegetation that inhabit these areas. To address this concern, the MegaTransect Deposition Effects Study evaluated the condition and sensitivity of the AT corridor with respect to acidic deposition, and defined air pollution thresholds (critical and target loads) and recovery rates. Findings indicate that additional S emission\nreductions are needed to restore the AT.","language":"English","publisher":"National Park Service","publisherLocation":"Fort Collins, CO","collaboration":"U.S. National Park Service; USGS","usgsCitation":"Lawrence, G.B., Sullivan, T.J., Burns, D.A., Bailey, S.W., Cosby, B.J., Dovciak, M., Ewing, H., McDonnell, T.C., Minocha, R., Riemann, R., Quant, J., Rice, K.C., Siemion, J., and Weathers, K.C., 2015, Acidic deposition along the Appalachian Trail corridor and its effects on acid-sensitive terrestrial and aquatic resources, Report: xxvii., 241 p.; Summaries; GIS Data.","productDescription":"Report: xxvii., 241 p.; Summaries; GIS Data","numberOfPages":"349","ipdsId":"IP-059674","costCenters":[{"id":474,"text":"New York Water Science Center","active":true,"usgs":true},{"id":614,"text":"Virginia Water Science 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,{"id":70147431,"text":"70147431 - 2015 - Evidence for intercontinental parasite exchange through molecular detection and characterization of haematozoa in northern pintails (<i>Anas acuta</i>) sampled throughout the North Pacific Basin","interactions":[],"lastModifiedDate":"2015-05-01T11:28:08","indexId":"70147431","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2025,"text":"International Journal for Parasitology: Parasites and Wildlife","active":true,"publicationSubtype":{"id":10}},"title":"Evidence for intercontinental parasite exchange through molecular detection and characterization of haematozoa in northern pintails (<i>Anas acuta</i>) sampled throughout the North Pacific Basin","docAbstract":"<p>Empirical evidence supports wild birds as playing a role in the interhemispheric exchange of bacteria and viruses; however, data supporting the redistribution of parasites among continents are limited. In this study, the hypothesis that migratory birds contribute to the redistribution of parasites between continents was tested by sampling northern pintails (Anas acuta) at locations throughout the North Pacific Basin in North America and East Asia for haemosporidian infections and assessing the genetic evidence for parasite exchange. Of 878 samples collected from birds in Alaska (USA), California (USA), and Hokkaido (Japan) during August 2011 - May 2012 and screened for parasitic infections using molecular techniques, Leucocytozoon, Haemoproteus, and Plasmodium parasites were detected in 555 (63%), 44 (5%), and 52 (6%) samples, respectively. Using an occupancy modeling approach, the probability of detecting parasites via replicate genetic tests was estimated to be high (p &ge; 0.95). Multi-model inference supported variation of Leucocytozoon parasite prevalence by northern pintail age class and geographic location of sampling in contrast to Haemoproteus and Plasmodium parasites for which there was only support for variation in parasite prevalence by sampling location. Thirty-one unique mitochondrial DNA haplotypes were detected among haematozoa infecting northern pintails including seven lineages shared between samples from North America and Japan. The finding of identical parasite haplotypes at widely distributed geographic locations and general lack of genetic structuring by continent in phylogenies for Leucocytozoon and Plasmodium provides evidence for intercontinental genetic exchange of haemosporidian parasites. Results suggest that migratory birds, including waterfowl, could therefore facilitate the introduction of avian malaria and other haemosporidia to novel hosts and spatially distant regions.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.ijppaw.2014.12.004","usgsCitation":"Ramey, A.M., Schmutz, J.A., Reed, J.A., Fujita, G., Scotton, B.D., Casler, B., Fleskes, J.P., Konishi, K., Uchida, K., and Yabsley, M.J., 2015, Evidence for intercontinental parasite exchange through molecular detection and characterization of haematozoa in northern pintails (<i>Anas acuta</i>) sampled throughout the North Pacific Basin: International Journal for Parasitology: Parasites and Wildlife, v. 4, no. 1, p. 11-21, https://doi.org/10.1016/j.ijppaw.2014.12.004.","productDescription":"11 p.","startPage":"11","endPage":"21","numberOfPages":"11","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-059565","costCenters":[{"id":117,"text":"Alaska Science Center Biology 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,{"id":70144686,"text":"70144686 - 2015 - Suburban groundwater quality as influenced by turfgrass and septic sources, Delmarva Peninsula, USA","interactions":[],"lastModifiedDate":"2015-03-31T12:03:00","indexId":"70144686","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Suburban groundwater quality as influenced by turfgrass and septic sources, Delmarva Peninsula, USA","docAbstract":"<p><span>Suburban land use is expanding in many parts of the United States and there is a need to better understand the potential water-quality impacts of this change. This study characterized groundwater quality in a sandy, water-table aquifer influenced by suburban development and compared the results to known patterns in water chemistry associated with natural, background conditions and agricultural effects. Samples for nutrients, major ions, and isotopes of N and O in NO</span><sub>3</sub><sup>&minus;</sup><span>&nbsp;were collected in 2011 beneath turfgrass from 29 shallow wells (median depth 3.7 m) and from 18 deeper wells (median depth 16.9 m) in a long-term suburban development. Nitrate (as N) concentrations in groundwater beneath turfgrass were highly variable (0.02&ndash;22.3 mg L</span><sup>&minus;1</sup><span>) with a median of 2.7 mg L</span><sup>&minus;1</sup><span>, which is higher than natural water chemistry (&gt;0.4 mg L</span><sup>&minus;1</sup><span>; Na</span><sup>+</sup><span>&ndash;Cl</span><sup>&minus;</sup><span>&ndash;HCO</span><sub>3</sub><sup>&minus;</sup><span>&nbsp;water type), but significantly lower than concentrations beneath a nearby agricultural area (median 16.9 mg L</span><sup>&minus;1</sup><span>;&nbsp;</span><i>p</i><span>&nbsp;&lt; .0001). Dissolved Fe concentrations in shallow suburban groundwater, attributed to chelated Fe in turfgrass fertilizers, were significantly higher (</span><i>p</i><span>&nbsp;&lt; .005) than concentrations from the agricultural site, although a Ca</span><sup>2+</sup><span>&ndash;Mg</span><sup>2+</sup><span>&ndash;Cl</span><sup>&minus;</sup><span>&ndash;NO</span><sub>3</sub><sup>&minus;</sup><span>&nbsp;water type was dominant in both areas. A Na</span><sup>+</sup><span>&ndash;Cl</span><sup>&minus;</sup><span>&ndash;NO</span><sub>3</sub><sup>&minus;</sup><span>&nbsp;water type indicated a septic-system source for nitrate in deep suburban groundwater (0.06&ndash;6.0 mg L</span><sup>&minus;1</sup><span>; median 1.5 mg L</span><sup>&minus;1</sup><span>). Isotopic data indicated denitrification; however, geochemical techniques were more helpful in identifying nitrate sources. Results indicate that suburban expansion into agricultural areas may significantly decrease overall nitrate concentrations in groundwater, but excessive turfgrass fertilization could result in localized contamination.</span></p>","language":"English","publisher":"American Society of Agronomy, Crop Science Society of America, Soil Science Society of America","doi":"10.2134/jeq2014.06.0280","usgsCitation":"Kasper, J.W., Denver, J.M., and York, J.K., 2015, Suburban groundwater quality as influenced by turfgrass and septic sources, Delmarva Peninsula, USA: Journal of Environmental Quality, v. 44, no. 2, p. 642-654, https://doi.org/10.2134/jeq2014.06.0280.","productDescription":"13 p.","startPage":"642","endPage":"654","numberOfPages":"13","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-040557","costCenters":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"links":[{"id":472388,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.2134/jeq2014.06.0280","text":"Publisher Index Page"},{"id":299212,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Delaware","otherGeospatial":"Delmarva Peninsula","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -75.17995834350585,\n              38.634438731500104\n            ],\n            [\n              -75.17995834350585,\n              38.64838299329524\n            ],\n            [\n              -75.14820098876953,\n              38.64838299329524\n            ],\n            [\n              -75.14820098876953,\n              38.634438731500104\n            ],\n            [\n              -75.17995834350585,\n              38.634438731500104\n            ]\n          ]\n        ]\n      }\n    },\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -75.2479362487793,\n              38.64369051578083\n            ],\n            [\n              -75.2479362487793,\n              38.66044795293739\n            ],\n            [\n              -75.19094467163086,\n              38.66044795293739\n            ],\n            [\n              -75.19094467163086,\n              38.64369051578083\n            ],\n            [\n              -75.2479362487793,\n              38.64369051578083\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"44","issue":"2","publishingServiceCenter":{"id":10,"text":"Baltimore PSC"},"noUsgsAuthors":false,"publicationDate":"2015-03-01","publicationStatus":"PW","scienceBaseUri":"551bc52ee4b0323842783a55","contributors":{"authors":[{"text":"Kasper, Joshua W.","contributorId":83802,"corporation":false,"usgs":false,"family":"Kasper","given":"Joshua","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":543775,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Denver, Judith M. jmdenver@usgs.gov","contributorId":140022,"corporation":false,"usgs":true,"family":"Denver","given":"Judith","email":"jmdenver@usgs.gov","middleInitial":"M.","affiliations":[{"id":374,"text":"Maryland Water Science Center","active":true,"usgs":true}],"preferred":false,"id":543773,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"York, Joanna K.","contributorId":140023,"corporation":false,"usgs":false,"family":"York","given":"Joanna","email":"","middleInitial":"K.","affiliations":[{"id":13359,"text":"University of Delaware","active":true,"usgs":false}],"preferred":false,"id":543774,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70148542,"text":"70148542 - 2015 - Towards sustainable management of huntable migratory waterbirds in Europe","interactions":[],"lastModifiedDate":"2016-12-14T14:29:37","indexId":"70148542","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Towards sustainable management of huntable migratory waterbirds in Europe","docAbstract":"<p>The EU Birds Directive and the African-Eurasian Waterbird Agreement provide an adequate legal framework for sustainable management of migratory waterbird populations. The main shortcoming of both instruments is that it leaves harvest decisions of a shared resource to individual Member States and Contracting Parties without providing a shared information base and mechanism to assess the impact of harvest and coordinate actions in relation to mutually agreed objectives. </p><p>A recent update of the conservation status of waterbirds in the EU shows that almost half of the populations of species listed on Annex II of the Birds Directive have a declining short-term trend and over half of them are listed in Columns A and B of AEWA. This implies that their hunting could either only continue under the framework of an adaptive harvest management plan or their hunting should be regulated with the view of restoring them in favourable conservation status. </p><p>We argue that a structured approach to decision-making (such as adaptive management) is needed, supported with adequate organisational structures at flyway scale. We review the experience with such an approach in North America and assess the applicability of a similar approach in the European context. We show there is no technical reason why adaptive harvest management could be not applied in the EU or even AEWA context. </p><p>We demonstrate that an informed approach to setting allowable harvests does not require detailed demographic information. Essential to the process, however, are estimates of either the observed growth rate from a monitoring program or the growth rate expected under ideal conditions. In addition, periodic estimates of population size are needed, as well as either empirical information or reasonable assumptions about the form of density dependence. We show that such information exists for many populations, but improvements are needed to improve geographic coverage, reliability and timely data availability. </p><p>We highlight the importance of the International Waterbird Census and specialised goose and seaduck monitoring in estimating population sizes and observed growth rate of the populations. We encourage further investments into the development of these schemes. We also recognise the importance of migration studies to improve our understanding of delineations of populations. We also highlight that, with a few exceptions, the available data does not allow the European Commission, competent authorities of the Members States or other AEWA Contracting Parties to assess levels of harvest and their sustainability and, therefore, regulate hunting accordingly. Therefore, we recommend that annual reporting on 2 harvest levels of waterbird populations would be gradually introduced in the EU and the AEWA region. We propose that future AEWA and EU action plans and management plans for Annex II species should apply the principles of adaptive harvest management framework and make provisions for setting up adequate monitoring and information management systems and organisational structures to manage the decision-making process. We suggest that internationally coordinated management structures are established to facilitate dialogue, learning and communication between stakeholders with different interests and cultural backgrounds.</p>","language":"English","publisher":"Wetlands International","usgsCitation":"Madsen, J., Guillemain, M., Nagy, S., Defos du Rau, P., Mondain-Monval, J., Griffin, C., Williams, J.H., Bunnefeld, N., Czajkowski, A., Hearn, R., Grauer, A., Alhainen, M., Middleton, A., and Johnson, F.A., 2015, Towards sustainable management of huntable migratory waterbirds in Europe, 44 p.","productDescription":"44 p.","startPage":"1","endPage":"43","ipdsId":"IP-062697","costCenters":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true}],"links":[{"id":332137,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":301146,"type":{"id":15,"text":"Index 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Szabolcs","contributorId":141130,"corporation":false,"usgs":false,"family":"Nagy","given":"Szabolcs","email":"","affiliations":[{"id":13682,"text":"Wetlands International","active":true,"usgs":false}],"preferred":false,"id":548524,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Defos du Rau, Pierre","contributorId":141132,"corporation":false,"usgs":false,"family":"Defos du Rau","given":"Pierre","email":"","affiliations":[{"id":13683,"text":"French National Hunting and Wildlife Agency (ONCFS)","active":true,"usgs":false}],"preferred":false,"id":548526,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Mondain-Monval, Jean-Yves","contributorId":141133,"corporation":false,"usgs":false,"family":"Mondain-Monval","given":"Jean-Yves","email":"","affiliations":[{"id":13683,"text":"French National Hunting and Wildlife Agency (ONCFS)","active":true,"usgs":false}],"preferred":false,"id":548527,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Griffin, Cy","contributorId":141134,"corporation":false,"usgs":false,"family":"Griffin","given":"Cy","email":"","affiliations":[{"id":13684,"text":"The Federation of Associations for Hunting and Conservation (FACE)","active":true,"usgs":false}],"preferred":false,"id":548528,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Williams, James Henty","contributorId":141135,"corporation":false,"usgs":false,"family":"Williams","given":"James","email":"","middleInitial":"Henty","affiliations":[{"id":13685,"text":"Aarhus University, Department of Bioscience","active":true,"usgs":false}],"preferred":false,"id":548529,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Bunnefeld, Nils","contributorId":141136,"corporation":false,"usgs":false,"family":"Bunnefeld","given":"Nils","email":"","affiliations":[{"id":13686,"text":"Biological and Environmental Sciences, University of 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Munchen","active":true,"usgs":false}],"preferred":false,"id":548533,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Alhainen, Mikko","contributorId":141140,"corporation":false,"usgs":false,"family":"Alhainen","given":"Mikko","email":"","affiliations":[{"id":13690,"text":"Finnish Wildlife Agency","active":true,"usgs":false}],"preferred":false,"id":548534,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Middleton, Angus","contributorId":141141,"corporation":false,"usgs":false,"family":"Middleton","given":"Angus","email":"","affiliations":[{"id":13691,"text":"Namibia Nature Foundation","active":true,"usgs":false}],"preferred":false,"id":548535,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Johnson, Fred A. 0000-0002-5854-3695 fjohnson@usgs.gov","orcid":"https://orcid.org/0000-0002-5854-3695","contributorId":2773,"corporation":false,"usgs":true,"family":"Johnson","given":"Fred","email":"fjohnson@usgs.gov","middleInitial":"A.","affiliations":[{"id":566,"text":"Southeast Ecological Science Center","active":true,"usgs":true},{"id":17705,"text":"Wetland and Aquatic Research Center","active":true,"usgs":true},{"id":455,"text":"National Wetlands Research Center","active":true,"usgs":true}],"preferred":true,"id":548522,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}}
,{"id":70146540,"text":"70146540 - 2015 - Understanding the signature of rock coatings in laser-induced breakdown spectroscopy data","interactions":[],"lastModifiedDate":"2015-04-17T14:53:16","indexId":"70146540","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1963,"text":"Icarus","active":true,"publicationSubtype":{"id":10}},"title":"Understanding the signature of rock coatings in laser-induced breakdown spectroscopy data","docAbstract":"<p><span>Surface compositional features on rocks such as coatings and weathering rinds provide important information about past aqueous environments and water&ndash;rock interactions. The search for these features represents an important aspect of the Curiosity rover mission. With its unique ability to do fine-scale chemical depth profiling, the ChemCam laser-induced breakdown spectroscopy instrument (LIBS) onboard Curiosity can be used to both identify and analyze rock surface alteration features. In this study we analyze a terrestrial manganese-rich rock varnish coating on a basalt rock in the laboratory with the ChemCam engineering model to determine the LIBS signature of a natural rock coating. Results show that there is a systematic decrease in peak heights for elements such as Mn that are abundant in the coating but not the rock. There is significant spatial variation in the relative abundance of coating elements detected by LIBS depending on where on the rock surface sampled; this is due to the variability in thickness and spatial discontinuities in the coating. Similar trends have been identified in some martian rock targets in ChemCam data, suggesting that these rocks may have coatings or weathering rinds on their surfaces.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.icarus.2014.05.038","usgsCitation":"Lanza, N.L., Ollila, A.M., Cousin, A., Wiens, R.C., Clegg, S.M., Mangold, N., Bridges, N., Cooper, D., Schmidt, M.E., Berger, J., Arvidson, R.E., Melikechi, N., Newsom, H.E., Tokar, R., Hardgrove, C., Mezzacappa, A., Jackson, R.S., Clark, B., Forni, O., Maurice, S., Nachon, M., Anderson, R.B., Blank, J., Deans, M., Delapp, D., Léveillé, R., McInroy, R., Martinez, R., Meslin, P., and Pinet, P., 2015, Understanding the signature of rock coatings in laser-induced breakdown spectroscopy data: Icarus, v. 249, p. 62-73, https://doi.org/10.1016/j.icarus.2014.05.038.","productDescription":"12 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M.","contributorId":50834,"corporation":false,"usgs":false,"family":"Ollila","given":"Ann","email":"","middleInitial":"M.","affiliations":[{"id":13339,"text":"University of New Mexico, Albuquerque","active":true,"usgs":false}],"preferred":false,"id":545185,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Cousin, Agnes","contributorId":40139,"corporation":false,"usgs":false,"family":"Cousin","given":"Agnes","email":"","affiliations":[{"id":13447,"text":"Los Alamos National Laboratory","active":true,"usgs":false}],"preferred":false,"id":545186,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wiens, Roger C.","contributorId":140330,"corporation":false,"usgs":false,"family":"Wiens","given":"Roger","email":"","middleInitial":"C.","affiliations":[{"id":13447,"text":"Los Alamos National Laboratory","active":true,"usgs":false}],"preferred":false,"id":545187,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Clegg, Samuel 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,{"id":70143535,"text":"70143535 - 2015 - Small lakes show muted climate change signal in deepwater temperatures","interactions":[],"lastModifiedDate":"2015-03-19T13:47:34","indexId":"70143535","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","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":"Small lakes show muted climate change signal in deepwater temperatures","docAbstract":"<p><span>Water temperature observations were collected from 142 lakes across Wisconsin, USA, to examine variation in temperature of lakes exposed to similar regional climate. Whole lake water temperatures increased across the state from 1990 to 2012, with an average trend of 0.042&deg;C&thinsp;yr</span><sup>&minus;1</sup><span>&thinsp;&plusmn;&thinsp;0.01&deg;C&thinsp;yr</span><sup>&minus;1</sup><span>. In large (&gt;0.5&thinsp;km</span><sup>2</sup><span>) lakes, the positive temperature trend was similar across all depths. In small lakes (&lt;0.5&thinsp;km</span><sup>2</sup><span>), the warming trend was restricted to shallow waters, with no significant temperature trend observed in water &gt;0.5 times the maximum lake depth. The differing response of small versus large lakes is potentially a result of wind-sheltering reducing turbulent mixing magnitude in small lakes. These results demonstrate that small lakes respond differently to climate change than large lakes, suggesting that current predictions of impacts to lakes from climate change may require modification.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1002/2014GL062325","usgsCitation":"Winslow, L.A., Read, J.S., Hansen, G.J., and Hanson, P.C., 2015, Small lakes show muted climate change signal in deepwater temperatures: Geophysical Research Letters, v. 42, no. 2, p. 355-361, https://doi.org/10.1002/2014GL062325.","productDescription":"7 p.","startPage":"355","endPage":"361","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-059949","costCenters":[],"links":[{"id":472389,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/2014gl062325","text":"Publisher Index Page"},{"id":298768,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Wisconsin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -92.92236328125,\n              42.569264372193864\n            ],\n            [\n              -92.92236328125,\n              46.694667307773116\n            ],\n            [\n              -86.85791015625,\n              46.694667307773116\n            ],\n            [\n              -86.85791015625,\n              42.569264372193864\n            ],\n            [\n              -92.92236328125,\n              42.569264372193864\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"42","issue":"2","publishingServiceCenter":{"id":6,"text":"Columbus PSC"},"noUsgsAuthors":false,"publicationDate":"2015-01-20","publicationStatus":"PW","scienceBaseUri":"550bf336e4b02e76d759cdfc","chorus":{"doi":"10.1002/2014gl062325","url":"http://dx.doi.org/10.1002/2014gl062325","publisher":"Wiley-Blackwell","authors":"Winslow Luke A., Read Jordan S., Hansen Gretchen J. 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,{"id":70157453,"text":"70157453 - 2015 - Quantifying stream thermal regimes at management-pertinent scales: combining thermal infrared and stationary stream temperature data in a novel modeling framework.","interactions":[],"lastModifiedDate":"2015-09-24T09:40:08","indexId":"70157453","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","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":"Quantifying stream thermal regimes at management-pertinent scales: combining thermal infrared and stationary stream temperature data in a novel modeling framework.","docAbstract":"<p>Accurately quantifying stream thermal regimes can be challenging because stream temperatures are often spatially and temporally heterogeneous. In this study, we present a novel modeling framework that combines stream temperature data sets that are continuous in either space or time. Specifically, we merged the fine spatial resolution of thermal infrared (TIR) imagery with hourly data from 10 stationary temperature loggers in a 100 km portion of the Big Hole River, MT, USA. This combination allowed us to estimate summer thermal conditions at a relatively fine spatial resolution (every 100 m of stream length) over a large extent of stream (100 km of stream) during during the warmest part of the summer. Rigorous evaluation, including internal validation, external validation with spatially continuous instream temperature measurements collected from a Langrangian frame of reference, and sensitivity analyses, suggests the model was capable of accurately estimating longitudinal patterns in summer stream temperatures for this system Results revealed considerable spatial and temporal heterogeneity in summer stream temperatures and highlighted the value of assessing thermal regimes at relatively fine spatial and temporal scales. Preserving spatial and temporal variability and structure in abiotic stream data provides a critical foundation for understanding the dynamic, multiscale habitat needs of mobile stream organisms. Similarly, enhanced understanding of spatial and temporal variation in dynamic water quality attributes, including temporal sequence and spatial arrangement, can guide strategic placement of monitoring equipment that will subsequently capture variation in environmental conditions directly pertinent to research and management objectives.</p>","language":"English","publisher":"Wiley","doi":"10.1002/2014WR015588","usgsCitation":"Vatland, S.J., Gresswell, R.E., and Poole, G., 2015, Quantifying stream thermal regimes at management-pertinent scales: combining thermal infrared and stationary stream temperature data in a novel modeling framework.: Water Resources Research, v. 51, no. 1, p. 31-46, https://doi.org/10.1002/2014WR015588.","productDescription":"16 p.","startPage":"31","endPage":"46","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-055712","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science 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,{"id":70162057,"text":"70162057 - 2015 - Astronomical observations of volatiles on asteroids","interactions":[],"lastModifiedDate":"2017-04-13T15:20:29","indexId":"70162057","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Astronomical observations of volatiles on asteroids","docAbstract":"<p>We have long known that water and hydroxyl are important components in meteorites and asteroids. However, in the time since the publication of Asteroids III, evolution of astronomical instrumentation, laboratory capabilities, and theoretical models have led to great advances in our understanding of H<sub>2</sub>O/OH on small bodies, and spacecraft observations of the Moon and Vesta have important implications for our interpretations of the asteroidal population. We begin this chapter with the importance of water/OH in asteroids, after which we will discuss their spectral features throughout the visible and near-infrared. We continue with an overview of the findings in meteorites and asteroids, closing with a discussion of future opportunities, the results from which we can anticipate finding in Asteroids V. 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,{"id":70159862,"text":"70159862 - 2015 - Shoreface response and recovery to Hurricane Sandy: Fire Island, NY","interactions":[],"lastModifiedDate":"2017-04-25T10:47:45","indexId":"70159862","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Shoreface response and recovery to Hurricane Sandy: Fire Island, NY","docAbstract":"<p>The shoreface of Fire Island was extensively modified by Hurricane Sandy and subsequent storms in the following winter months. The changes were evaluated using various morphometrics of the shoreface from four bathymetric surveys, one prior to Hurricane Sandy, and three over the course of twenty months following Sandy. The datasets show that the nearshore bar system moved offshore to deeper water depths following Hurricane Sandy with volume lost from the subaerial beach and surfzone. Following the offshore shift, the nearshore bar system increased in size, the trough deepened, and there has been gradual landward movement of the nearshore bar. The steepening of the upper shoreface, landward translation of the profile, and loss of sediment is indicative of barrier island transgression.<br data-mce-bogus=\"1\"></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"The proceedings of the coastal sediments 2015","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"Coastal Sediments 2015 ","conferenceDate":"May 11-15, 2015","conferenceLocation":"San Diego, California","language":"English","publisher":"World Scientific Publishing Co. Pte. Ltd.","publisherLocation":"Toh Tuck, Singapore","doi":"10.1142/9789814689977_0012","isbn":" 978-981-4689-97-9","usgsCitation":"Nelson, T., and Hapke, C.J., 2015, Shoreface response and recovery to Hurricane Sandy: Fire Island, NY, <i>in</i> The proceedings of the coastal sediments 2015, San Diego, California, May 11-15, 2015, 14 p., https://doi.org/10.1142/9789814689977_0012.","productDescription":"14 p.","ipdsId":"IP-062721","costCenters":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":340108,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New York","otherGeospatial":"Fire Island","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationDate":"2015-04-15","publicationStatus":"PW","scienceBaseUri":"59006064e4b0e85db3a5dde7","contributors":{"editors":[{"text":"Wang, Ping","contributorId":78646,"corporation":false,"usgs":false,"family":"Wang","given":"Ping","email":"","affiliations":[{"id":7163,"text":"University of South Florida","active":true,"usgs":false}],"preferred":false,"id":692455,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Rosati, Julie D.","contributorId":112486,"corporation":false,"usgs":false,"family":"Rosati","given":"Julie D.","affiliations":[{"id":7163,"text":"University of South Florida","active":true,"usgs":false}],"preferred":false,"id":692456,"contributorType":{"id":2,"text":"Editors"},"rank":2},{"text":"Cheng, Jun","contributorId":191241,"corporation":false,"usgs":false,"family":"Cheng","given":"Jun","email":"","affiliations":[],"preferred":false,"id":692457,"contributorType":{"id":2,"text":"Editors"},"rank":3}],"authors":[{"text":"Nelson, Timothy R. 0000-0002-5005-7617 trnelson@usgs.gov","orcid":"https://orcid.org/0000-0002-5005-7617","contributorId":5814,"corporation":false,"usgs":true,"family":"Nelson","given":"Timothy R.","email":"trnelson@usgs.gov","affiliations":[{"id":574,"text":"St. Petersburg Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":false,"id":580784,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hapke, Cheryl J. 0000-0002-2753-4075 chapke@usgs.gov","orcid":"https://orcid.org/0000-0002-2753-4075","contributorId":2981,"corporation":false,"usgs":true,"family":"Hapke","given":"Cheryl","email":"chapke@usgs.gov","middleInitial":"J.","affiliations":[{"id":6676,"text":"USGS (retired)","active":true,"usgs":false}],"preferred":true,"id":580785,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70142858,"text":"70142858 - 2015 - Status and trends in the Lake Superior fish community, 2014","interactions":[],"lastModifiedDate":"2018-03-28T13:36:17","indexId":"70142858","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":4,"text":"Other Government Series"},"title":"Status and trends in the Lake Superior fish community, 2014","docAbstract":"<p>In 2014, the Lake Superior fish community was sampled with daytime bottom trawls at 73 nearshore and 30 offshore stations. Spring and summer water temperatures were the coldest measured for the period of records for the surveys. In the nearshore zone, a total of 15,372 individuals from 28 species or morphotypes were collected. Nearshore lakewide mean biomass was 6.9 kg/ha, which was higher than that observed in the past few years, but below the long-term average of 9.2 kg/ha. 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,{"id":70155925,"text":"70155925 - 2015 - 2013 Monitoring and tracking wet nitrogen deposition at Rocky Mountain National Park","interactions":[],"lastModifiedDate":"2018-02-21T17:54:57","indexId":"70155925","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":53,"text":"Natural Resource Report","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"NPS/NRSS/ARD/NRR—2015/997","title":"2013 Monitoring and tracking wet nitrogen deposition at Rocky Mountain National Park","docAbstract":"In 2004, multiple agencies including the Colorado Department of Public Health and Environment (CDPHE), the National Park Service (NPS), and the U.S. Environmental Protection Agency (U.S. EPA) met to address the effects and trends of nitrogen deposition and related air quality issues at Rocky Mountain National Park (RMNP). These agencies signed a Memorandum of Understanding (MOU) to facilitate interagency coordination, calling the effort the “Rocky Mountain National Park Initiative.” After much collaboration, the MOU agencies (CDPHE, NPS, and U.S. EPA) issued the Nitrogen Deposition Reduction Plan (NDRP) in 2007, which was endorsed by the three agencies and the Colorado Air Quality Control Commission (AQCC). The NDRP and other related documents are available on the CDPHE website: http://www.colorado.gov/cdphe/rmnpinitiative.\r\n\r\nThe purpose of this report is to inform the MOU agencies, stakeholders, and the public about the status and trends of wet nitrogen deposition at RMNP\r\nthrough 2013. In addition to other types of evidence, the MOU agencies use the information provided in this annual report to determine interim milestone achievements.","language":"English","publisher":"National Park Service","usgsCitation":"Morris, K., Mast, M.A., Clow, D.W., Wetherbee, G.A., Baron, J., Taipale, C., Blett, T., Gay, D., and Bowker, D., 2015, 2013 Monitoring and tracking wet nitrogen deposition at Rocky Mountain National Park: Natural Resource Report NPS/NRSS/ARD/NRR—2015/997, v, 32 p.","productDescription":"v, 32 p.","numberOfPages":"41","ipdsId":"IP-065590","costCenters":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"links":[{"id":339817,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":306277,"type":{"id":15,"text":"Index Page"},"url":"https://irma.nps.gov/DataStore/Reference/Profile/2223313"}],"publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58f5d443e4b0f2e20545e425","contributors":{"authors":[{"text":"Morris, Kristi","contributorId":45197,"corporation":false,"usgs":true,"family":"Morris","given":"Kristi","affiliations":[],"preferred":false,"id":566903,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mast, M. Alisa 0000-0001-6253-8162 mamast@usgs.gov","orcid":"https://orcid.org/0000-0001-6253-8162","contributorId":827,"corporation":false,"usgs":true,"family":"Mast","given":"M.","email":"mamast@usgs.gov","middleInitial":"Alisa","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":566902,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Clow, David W. 0000-0001-6183-4824 dwclow@usgs.gov","orcid":"https://orcid.org/0000-0001-6183-4824","contributorId":1671,"corporation":false,"usgs":true,"family":"Clow","given":"David","email":"dwclow@usgs.gov","middleInitial":"W.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":566904,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wetherbee, Gregory A. 0000-0002-6720-2294 wetherbe@usgs.gov","orcid":"https://orcid.org/0000-0002-6720-2294","contributorId":1044,"corporation":false,"usgs":true,"family":"Wetherbee","given":"Gregory","email":"wetherbe@usgs.gov","middleInitial":"A.","affiliations":[{"id":143,"text":"Branch of Quality Systems","active":true,"usgs":true}],"preferred":true,"id":566905,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Baron, Jill 0000-0002-5902-6251 jill_baron@usgs.gov","orcid":"https://orcid.org/0000-0002-5902-6251","contributorId":194124,"corporation":false,"usgs":true,"family":"Baron","given":"Jill","email":"jill_baron@usgs.gov","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":566906,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Taipale, Curt","contributorId":86237,"corporation":false,"usgs":true,"family":"Taipale","given":"Curt","email":"","affiliations":[],"preferred":false,"id":566907,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Blett, Tamara","contributorId":61070,"corporation":false,"usgs":true,"family":"Blett","given":"Tamara","affiliations":[],"preferred":false,"id":566908,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gay, David A.","contributorId":68022,"corporation":false,"usgs":true,"family":"Gay","given":"David A.","affiliations":[],"preferred":false,"id":566909,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Bowker, Daniel","contributorId":146263,"corporation":false,"usgs":false,"family":"Bowker","given":"Daniel","email":"","affiliations":[{"id":16654,"text":"Colorado State University, Natural Resource Ecologyy Lab","active":true,"usgs":false}],"preferred":false,"id":566910,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70150434,"text":"70150434 - 2015 - Land use structures fish assemblages in reservoirs of the Tennessee River","interactions":[],"lastModifiedDate":"2015-06-26T15:42:11","indexId":"70150434","displayToPublicDate":"2015-01-01T00:00:00","publicationYear":"2015","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2681,"text":"Marine and Freshwater Research","active":true,"publicationSubtype":{"id":10}},"title":"Land use structures fish assemblages in reservoirs of the Tennessee River","docAbstract":"<p><span>Inputs of nutrients, sediments and detritus from catchments can promote selected components of reservoir fish assemblages, while hindering others. However, investigations linking these catchment subsidies to fish assemblages have generally focussed on one or a handful of species. Considering this paucity of community-level awareness, we sought to explore the association between land use and fish assemblage composition in reservoirs. To this end, we compared fish assemblages in reservoirs of two sub-basins of the Tennessee River representing differing intensities of agricultural development, and hypothesised that fish assemblage structure indicated by species percentage composition would differ among reservoirs in the two sub-basins. Using multivariate statistical analysis, we documented inter-basin differences in land use, reservoir productivity and fish assemblages, but no differences in reservoir morphometry or water regime. Basins were separated along a gradient of forested and non-forested catchment land cover, which was directly related to total nitrogen, total phosphorous and chlorophyll-</span><i>a</i><span>&nbsp;concentrations. Considering the extensive body of knowledge linking land use to aquatic systems, it is reasonable to postulate a hierarchical model in which productivity has direct links to terrestrial inputs, and fish assemblages have direct links to both land use and productivity. We observed a shift from an invertivore-based fish assemblage in forested catchments to a detritivore-based fish assemblage in agricultural catchments that may be a widespread pattern among reservoirs and other aquatic ecosystems.</span></p>","language":"English","publisher":"CSIRO Publishing","doi":"10.1071/MF14188","usgsCitation":"Miranda, L.E., Bies, J.M., and Hann, D.A., 2015, Land use structures fish assemblages in reservoirs of the Tennessee River: Marine and Freshwater Research, v. 66, no. 6, p. 526-534, https://doi.org/10.1071/MF14188.","productDescription":"9 p.","startPage":"526","endPage":"534","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-057376","costCenters":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"links":[{"id":303097,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"Tennessee River","volume":"66","issue":"6","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"558e77b8e4b0b6d21dd65961","contributors":{"authors":[{"text":"Miranda, Leandro E. 0000-0002-2138-7924 smiranda@usgs.gov","orcid":"https://orcid.org/0000-0002-2138-7924","contributorId":531,"corporation":false,"usgs":true,"family":"Miranda","given":"Leandro","email":"smiranda@usgs.gov","middleInitial":"E.","affiliations":[{"id":198,"text":"Coop Res Unit Atlanta","active":true,"usgs":true}],"preferred":true,"id":556877,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bies, J. M.","contributorId":144086,"corporation":false,"usgs":false,"family":"Bies","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":558568,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hann, D. A.","contributorId":144087,"corporation":false,"usgs":false,"family":"Hann","given":"D.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":558569,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
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