{"pageNumber":"95","pageRowStart":"2350","pageSize":"25","recordCount":11370,"records":[{"id":70170546,"text":"70170546 - 2014 - Carbon and geochemical properties of cryosols on the North Slope of Alaska","interactions":[],"lastModifiedDate":"2016-04-25T08:31:11","indexId":"70170546","displayToPublicDate":"2014-04-01T09:30:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1264,"text":"Cold Regions Science and Technology","active":true,"publicationSubtype":{"id":10}},"title":"Carbon and geochemical properties of cryosols on the North Slope of Alaska","docAbstract":"<div class=\"abstract svAbstract \" data-etype=\"ab\">\n<p id=\"sp0005\">Cryosols contain roughly 1700&nbsp;Gt of Soil organic carbon (SOC) roughly double the carbon content of the atmosphere. As global temperature rises and permafrost thaws, this carbon reservoir becomes vulnerable to microbial decomposition, resulting in greenhouse gas emissions that will amplify anthropogenic warming. Improving our understanding of carbon dynamics in thawing permafrost requires more data on carbon and nitrogen content, soil physical and chemical properties and substrate quality in cryosols. We analyzed five permafrost cores obtained from the North Slope of Alaska during the summer of 2009. The relationship between SOC and soil bulk density can be adequately represented by a logarithmic function. Gas fluxes at &minus;&nbsp;5&nbsp;&deg;C and 5&nbsp;&deg;C were measured to calculate the temperature response quotient (Q<sub>10</sub>). Q<sub>10</sub>&nbsp;and the respiration per unit soil C were higher in permafrost-affected soils than that in the active layer, suggesting that decomposition and heterotrophic respiration in cryosols may contribute more to global warming.</p>\n</div>","language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam","doi":"10.1016/j.coldregions.2014.01.001","usgsCitation":"Mu, C., Zhang, T., Schuster, P.F., Schaefer, K., Wickland, K.P., Repert, D.A., Liu, L., Schaefer, T., and Cheng, G., 2014, Carbon and geochemical properties of cryosols on the North Slope of Alaska: Cold Regions Science and Technology, v. 100, p. 59-67, https://doi.org/10.1016/j.coldregions.2014.01.001.","productDescription":"9 p.","startPage":"59","endPage":"67","numberOfPages":"9","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-056162","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":320492,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -150.97412109375,\n              70.45885925640687\n            ],\n            [\n              -150.44677734375,\n              70.46620742226558\n            ],\n            [\n              -149.34814453125,\n              70.49557354093137\n            ],\n            [\n              -148.86474609375,\n              70.44415495538642\n            ],\n            [\n              -148.20556640625,\n              70.34092679475283\n            ],\n            [\n              -147.568359375,\n              70.22231091600497\n            ],\n            [\n              -147.65625,\n              69.80172356231073\n            ],\n            [\n              -147.63427734375,\n              69.21720177564615\n            ],\n            [\n              -148.29345703124997,\n              68.73638345287264\n            ],\n            [\n              -149.39208984375,\n              68.4234339681939\n            ],\n            [\n              -150.75439453125,\n              68.22052325573338\n            ],\n            [\n              -151.3916015625,\n              68.22052325573338\n            ],\n            [\n              -152.05078125,\n              68.35869913946578\n            ],\n            [\n              -152.40234375,\n              68.68053347928972\n            ],\n            [\n              -152.5341796875,\n              69.00567519658819\n            ],\n            [\n              -152.4462890625,\n              69.26393034602108\n            ],\n            [\n              -151.98486328125,\n              69.74094412836399\n            ],\n            [\n              -151.54541015625,\n              70.04309814378466\n            ],\n            [\n              -150.97412109375,\n              70.45885925640687\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"100","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"571f3fb1e4b071321fe56a07","contributors":{"authors":[{"text":"Mu, Cuicui","contributorId":168877,"corporation":false,"usgs":false,"family":"Mu","given":"Cuicui","email":"","affiliations":[{"id":25375,"text":"Lanzhou University, PR China","active":true,"usgs":false}],"preferred":false,"id":627561,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zhang, Tingjun","contributorId":66600,"corporation":false,"usgs":false,"family":"Zhang","given":"Tingjun","affiliations":[{"id":28117,"text":"Lanzhou University, Lanzhou, China","active":true,"usgs":false}],"preferred":false,"id":627562,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schuster, Paul F. 0000-0002-8314-1372 pschuste@usgs.gov","orcid":"https://orcid.org/0000-0002-8314-1372","contributorId":1360,"corporation":false,"usgs":true,"family":"Schuster","given":"Paul","email":"pschuste@usgs.gov","middleInitial":"F.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":627560,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schaefer, Kevin","contributorId":63323,"corporation":false,"usgs":true,"family":"Schaefer","given":"Kevin","affiliations":[],"preferred":false,"id":627563,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Wickland, Kimberly P. 0000-0002-6400-0590 kpwick@usgs.gov","orcid":"https://orcid.org/0000-0002-6400-0590","contributorId":1835,"corporation":false,"usgs":true,"family":"Wickland","given":"Kimberly","email":"kpwick@usgs.gov","middleInitial":"P.","affiliations":[{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":627564,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Repert, Deborah A. 0000-0001-7284-1456 darepert@usgs.gov","orcid":"https://orcid.org/0000-0001-7284-1456","contributorId":2578,"corporation":false,"usgs":true,"family":"Repert","given":"Deborah","email":"darepert@usgs.gov","middleInitial":"A.","affiliations":[{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true},{"id":38175,"text":"Toxics Substances Hydrology Program","active":true,"usgs":true}],"preferred":true,"id":627565,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Liu, Lin","contributorId":92950,"corporation":false,"usgs":false,"family":"Liu","given":"Lin","email":"","affiliations":[{"id":36342,"text":"Earth System Science Programme, Faculty of Science, Chinese University of Hong Kong, Hong Kong, China","active":true,"usgs":false}],"preferred":false,"id":627566,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Schaefer, Tim","contributorId":168881,"corporation":false,"usgs":false,"family":"Schaefer","given":"Tim","email":"","affiliations":[{"id":25377,"text":"Galmont Consulting, Chicago, Ill.","active":true,"usgs":false}],"preferred":false,"id":627567,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Cheng, Guodong","contributorId":168882,"corporation":false,"usgs":false,"family":"Cheng","given":"Guodong","email":"","affiliations":[{"id":25378,"text":"Cold and Arid Regions Environmental and Engineering Research Institute, Lanzhou, PR China","active":true,"usgs":false}],"preferred":false,"id":627568,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70134582,"text":"70134582 - 2014 - Why the 1964 Great Alaska Earthquake matters 50 years later","interactions":[],"lastModifiedDate":"2023-11-14T15:27:29.817959","indexId":"70134582","displayToPublicDate":"2014-04-01T06:00:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3372,"text":"Seismological Research Letters","onlineIssn":"1938-2057","printIssn":"0895-0695","active":true,"publicationSubtype":{"id":10}},"title":"Why the 1964 Great Alaska Earthquake matters 50 years later","docAbstract":"<p>Spring was returning to Alaska on Friday 27 March 1964. A two‐week cold snap had just ended, and people were getting ready for the Easter weekend. At 5:36&nbsp;p.m., an earthquake initiated 12&nbsp;km beneath Prince William Sound, near the eastern end of what is now recognized as the Alaska‐Aleutian subduction zone. No one was expecting this earthquake that would radically alter the coastal landscape, influence the direction of science, and indelibly mark the growth of a burgeoning state.</p>","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0220140020","usgsCitation":"West, M., Haeussler, P.J., Ruppert, N.A., Freymueller, J., and Alaska Seismic Hazards Safety Commission, 2014, Why the 1964 Great Alaska Earthquake matters 50 years later: Seismological Research Letters, v. 85, no. 2, p. 245-251, https://doi.org/10.1785/0220140020.","productDescription":"7 p.","startPage":"245","endPage":"251","numberOfPages":"7","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-054609","costCenters":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"links":[{"id":296441,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -160.04522953391194,\n              66.68954870433438\n            ],\n            [\n              -160.04522953391194,\n              54.97067577720671\n            ],\n            [\n              -133.64609437534986,\n              54.97067577720671\n            ],\n            [\n              -133.64609437534986,\n              66.68954870433438\n            ],\n            [\n              -160.04522953391194,\n              66.68954870433438\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"85","issue":"2","noUsgsAuthors":false,"publicationDate":"2014-03-07","publicationStatus":"PW","scienceBaseUri":"548193cbe4b0aa6d778520ff","contributors":{"authors":[{"text":"West, Michael E.","contributorId":91830,"corporation":false,"usgs":true,"family":"West","given":"Michael E.","affiliations":[],"preferred":false,"id":526207,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haeussler, Peter J. 0000-0002-1503-6247 pheuslr@usgs.gov","orcid":"https://orcid.org/0000-0002-1503-6247","contributorId":503,"corporation":false,"usgs":true,"family":"Haeussler","given":"Peter","email":"pheuslr@usgs.gov","middleInitial":"J.","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":526206,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ruppert, Natalia A.","contributorId":89117,"corporation":false,"usgs":true,"family":"Ruppert","given":"Natalia","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":526208,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Freymueller, Jeffrey T.","contributorId":96841,"corporation":false,"usgs":false,"family":"Freymueller","given":"Jeffrey T.","affiliations":[{"id":26875,"text":"Michigan State University, East Lansing, MI","active":true,"usgs":false}],"preferred":false,"id":526209,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Alaska Seismic Hazards Safety Commission","contributorId":127695,"corporation":true,"usgs":false,"organization":"Alaska Seismic Hazards Safety Commission","id":526370,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70134594,"text":"70134594 - 2014 - Little late Holocene strain accumulation and release on the Aleutian megathrust below the Shumagin Islands, Alaska","interactions":[],"lastModifiedDate":"2014-12-04T14:09:32","indexId":"70134594","displayToPublicDate":"2014-04-01T00:00:00","publicationYear":"2014","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":"Little late Holocene strain accumulation and release on the Aleutian megathrust below the Shumagin Islands, Alaska","docAbstract":"<p>Can a predominantly creeping segment of a subduction zone generate a great (<em>M</em>&thinsp;&gt;&thinsp;8) earthquake? Despite Russian accounts of strong shaking and high tsunamis in 1788, geodetic observations above the Aleutian megathrust indicate creeping subduction across the Shumagin Islands segment, a well-known seismic gap. Seeking evidence for prehistoric great earthquakes, we investigated Simeonof Island, the archipelago's easternmost island, and found no evidence for uplifted marine terraces or subsided shorelines. Instead, we found freshwater peat blanketing lowlands, and organic-rich silt and tephra draping higher glacially smoothed bedrock. Basal peat ages place glacier retreat prior to 10.4&thinsp;ka and imply slowly rising (&lt;0.2&thinsp;m/ka) relative sea level since ~3.4&thinsp;ka. Storms rather than tsunamis probably deposited thin, discontinuous deposits in coastal sites. If rupture of the megathrust beneath Simeonof Island produced great earthquakes in the late Holocene, then coseismic uplift or subsidence was too small (&le;0.3&thinsp;m) to perturb the onshore geologic record.</p>","language":"English","publisher":"Wiley","doi":"10.1002/2014GL059393","usgsCitation":"Witter, R., Briggs, R.W., Engelhart, S.E., Gelfenbaum, G.R., Koehler, R., and Barnhart, W.D., 2014, Little late Holocene strain accumulation and release on the Aleutian megathrust below the Shumagin Islands, Alaska: Geophysical Research Letters, v. 41, no. 7, p. 2359-2367, https://doi.org/10.1002/2014GL059393.","productDescription":"9 p.","startPage":"2359","endPage":"2367","numberOfPages":"9","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-054595","costCenters":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"links":[{"id":488472,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://digitalcommons.uri.edu/geo_facpubs/7","text":"External Repository"},{"id":296437,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Shumagin Islands","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -161.7626953125,\n              55.55349545845371\n            ],\n            [\n              -161.7626953125,\n              60.392147922518845\n            ],\n            [\n              -149.58984375,\n              60.392147922518845\n            ],\n            [\n              -149.58984375,\n              55.55349545845371\n            ],\n            [\n              -161.7626953125,\n              55.55349545845371\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"41","issue":"7","noUsgsAuthors":false,"publicationDate":"2014-04-09","publicationStatus":"PW","scienceBaseUri":"548193bce4b0aa6d778520ed","contributors":{"authors":[{"text":"Witter, Robert C. 0000-0002-1721-254X rwitter@usgs.gov","orcid":"https://orcid.org/0000-0002-1721-254X","contributorId":4528,"corporation":false,"usgs":true,"family":"Witter","given":"Robert C.","email":"rwitter@usgs.gov","affiliations":[{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":526212,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Briggs, Richard W. 0000-0001-8108-0046 rbriggs@usgs.gov","orcid":"https://orcid.org/0000-0001-8108-0046","contributorId":4136,"corporation":false,"usgs":true,"family":"Briggs","given":"Richard","email":"rbriggs@usgs.gov","middleInitial":"W.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":526213,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Engelhart, Simon E.","contributorId":60104,"corporation":false,"usgs":false,"family":"Engelhart","given":"Simon","email":"","middleInitial":"E.","affiliations":[{"id":6923,"text":"University of Rhode Island, Kingston, RI","active":true,"usgs":false}],"preferred":false,"id":526214,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gelfenbaum, Guy R. 0000-0003-1291-6107 ggelfenbaum@usgs.gov","orcid":"https://orcid.org/0000-0003-1291-6107","contributorId":742,"corporation":false,"usgs":true,"family":"Gelfenbaum","given":"Guy","email":"ggelfenbaum@usgs.gov","middleInitial":"R.","affiliations":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":520,"text":"Pacific Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":526215,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Koehler, Richard D.","contributorId":76993,"corporation":false,"usgs":true,"family":"Koehler","given":"Richard D.","affiliations":[],"preferred":false,"id":526216,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Barnhart, William D. wbarnhart@usgs.gov","contributorId":5299,"corporation":false,"usgs":true,"family":"Barnhart","given":"William","email":"wbarnhart@usgs.gov","middleInitial":"D.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":526217,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70100067,"text":"70100067 - 2014 - Recolonization of the intertidal and shallow subtidal community following the 2008 eruption of Alaska’s Kasatochi Volcano","interactions":[],"lastModifiedDate":"2014-03-31T10:30:39","indexId":"70100067","displayToPublicDate":"2014-03-31T10:15:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1012,"text":"Biogeosciences Discussions","active":true,"publicationSubtype":{"id":10}},"title":"Recolonization of the intertidal and shallow subtidal community following the 2008 eruption of Alaska’s Kasatochi Volcano","docAbstract":"The intertidal and nearshore benthic communities of Kasatochi Island are described following a catastrophic volcanic eruption in 2008. Prior to the eruption, the island was surrounded by a dense bed of canopy-forming dragon kelp Eualaria fistulosa which supported a productive nearshore community. The eruption extended the coastline of the island approximately 400 m offshore to roughly the 20 m isobath. One year following the eruption a reconnaissance survey found the intertidal zone devoid of life. Subtidally, the canopy kelp, as well as limited understory algal species and associated benthic fauna on the hard substratum, were buried by debris from the eruption. The resulting substrate was comprised almost entirely of medium and coarse sands with a depauperate benthic community. Comparisons of habitat and biological communities with other nearby Aleutian Islands and the Icelandic submarine volcanic eruption of Surtsey confirm dramatic reductions in flora and fauna consistent with the initial stages of recovery from a large-scale disturbance event. Four and five years following the eruption brief visits revealed dramatic intertidal and subtidal recolonization of the flora and fauna in some areas. Signs of nesting and fledging of young pigeon guillemots Cepphus columba suggest that the recovery of the nearshore biota may have begun affecting higher trophic levels. Recolonization or lack thereof was tied to bathymetric changes from coastal and nearshore erosion over the study period.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biogeosciences Discussions","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Copernicus Publications","doi":"10.5194/bgd-11-3799-2014","usgsCitation":"Jewett, S., and Drew, G.S., 2014, Recolonization of the intertidal and shallow subtidal community following the 2008 eruption of Alaska’s Kasatochi Volcano: Biogeosciences Discussions, v. 11, p. 3799-3836, https://doi.org/10.5194/bgd-11-3799-2014.","productDescription":"38 p.","startPage":"3799","endPage":"3836","ipdsId":"IP-049719","costCenters":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"links":[{"id":473085,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.5194/bgd-11-3799-2014","text":"External Repository"},{"id":285131,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":285130,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.5194/bgd-11-3799-2014"}],"country":"United States","state":"Alaska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -175.636059,52.122228 ], [ -175.636059,52.231705 ], [ -175.379941,52.231705 ], [ -175.379941,52.122228 ], [ -175.636059,52.122228 ] ] ] } } ] }","volume":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5351705ee4b05569d805a389","contributors":{"authors":[{"text":"Jewett, S.C.","contributorId":73947,"corporation":false,"usgs":true,"family":"Jewett","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":492111,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Drew, Gary S. 0000-0002-6789-0891 gdrew@usgs.gov","orcid":"https://orcid.org/0000-0002-6789-0891","contributorId":3311,"corporation":false,"usgs":true,"family":"Drew","given":"Gary","email":"gdrew@usgs.gov","middleInitial":"S.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":492110,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70095612,"text":"70095612 - 2014 - Uplift and subsidence reveal a nonpersistent megathrust rupture boundary (Sitkinak Island, Alaska)","interactions":[],"lastModifiedDate":"2014-07-15T11:47:24","indexId":"70095612","displayToPublicDate":"2014-03-31T09:20:00","publicationYear":"2014","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":"Uplift and subsidence reveal a nonpersistent megathrust rupture boundary (Sitkinak Island, Alaska)","docAbstract":"We report stratigraphic evidence of land-level change and tsunami inundation along the Alaska-Aleutian megathrust during prehistoric and historical earthquakes west of Kodiak Island. On Sitkinak Island, cores and tidal outcrops fringing a lagoon reveal five sharp lithologic contacts that record coseismic land-level change. Radiocarbon dates, <sup>137</sup>Cs profiles, CT scans, and microfossil assemblages are consistent with rapid uplift ca. 290-0, 520-300, and 1050-790 cal yr BP, and subsidence in AD 1964 and ca. 640-510 cal yr BP.  Radiocarbon, <sup>137</sup>Cs, and <sup>210</sup>Pb ages bracketing a sand bed traced 1.5 km inland and evidence for sudden uplift are consistent with Russian accounts of an earthquake and tsunami in AD 1788. The mixed uplift and subsidence record suggests that Sitkinak Island sits above a non-persistent boundary near the southwestern limit of the AD 1964 Mw 9.2 megathrust rupture.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Wiley","doi":"10.1002/2014GL059380","usgsCitation":"Briggs, R., Engelhart, S.E., Nelson, A.R., Dura, T., Kemp, A., Haeussler, P.J., Corbett, D., Angster, S.J., and Bradley, L., 2014, Uplift and subsidence reveal a nonpersistent megathrust rupture boundary (Sitkinak Island, Alaska): Geophysical Research Letters, v. 41, no. 7, p. 2289-2296, https://doi.org/10.1002/2014GL059380.","productDescription":"8 p.","startPage":"2289","endPage":"2296","numberOfPages":"8","ipdsId":"IP-055284","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":487547,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://digitalcommons.uri.edu/geo_facpubs/6","text":"External Repository"},{"id":285120,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/2014GL059380"},{"id":285121,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Sitkinak Island","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -154.3109,56.2112 ], [ -154.3109,56.8512 ], [ -153.6709,56.8512 ], [ -153.6709,56.2112 ], [ -154.3109,56.2112 ] ] ] } } ] }","volume":"41","issue":"7","noUsgsAuthors":false,"publicationDate":"2014-04-14","publicationStatus":"PW","scienceBaseUri":"5351706ce4b05569d805a42e","contributors":{"authors":[{"text":"Briggs, Richard W.","contributorId":94027,"corporation":false,"usgs":true,"family":"Briggs","given":"Richard W.","affiliations":[],"preferred":false,"id":491329,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Engelhart, Simon E.","contributorId":60104,"corporation":false,"usgs":false,"family":"Engelhart","given":"Simon","email":"","middleInitial":"E.","affiliations":[{"id":6923,"text":"University of Rhode Island, Kingston, RI","active":true,"usgs":false}],"preferred":false,"id":491328,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nelson, Alan R. 0000-0001-7117-7098 anelson@usgs.gov","orcid":"https://orcid.org/0000-0001-7117-7098","contributorId":812,"corporation":false,"usgs":true,"family":"Nelson","given":"Alan","email":"anelson@usgs.gov","middleInitial":"R.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":491322,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Dura, Tina","contributorId":48482,"corporation":false,"usgs":true,"family":"Dura","given":"Tina","affiliations":[],"preferred":false,"id":491327,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kemp, Andrew C.","contributorId":39674,"corporation":false,"usgs":true,"family":"Kemp","given":"Andrew C.","affiliations":[],"preferred":false,"id":491326,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Haeussler, Peter J. 0000-0002-1503-6247 pheuslr@usgs.gov","orcid":"https://orcid.org/0000-0002-1503-6247","contributorId":503,"corporation":false,"usgs":true,"family":"Haeussler","given":"Peter","email":"pheuslr@usgs.gov","middleInitial":"J.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":491321,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Corbett, D. Reide","contributorId":23681,"corporation":false,"usgs":true,"family":"Corbett","given":"D. Reide","affiliations":[],"preferred":false,"id":491325,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Angster, Stephen J. 0000-0001-9250-8415 sangster@usgs.gov","orcid":"https://orcid.org/0000-0001-9250-8415","contributorId":3885,"corporation":false,"usgs":true,"family":"Angster","given":"Stephen","email":"sangster@usgs.gov","middleInitial":"J.","affiliations":[],"preferred":true,"id":491324,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Bradley, Lee-Ann bradley@usgs.gov","contributorId":1141,"corporation":false,"usgs":true,"family":"Bradley","given":"Lee-Ann","email":"bradley@usgs.gov","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":false,"id":491323,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70094158,"text":"ofr20141004 - 2014 - Coalbed natural gas exploration, drilling activities, and geologic test results, 2007-2010","interactions":[],"lastModifiedDate":"2014-04-01T08:17:23","indexId":"ofr20141004","displayToPublicDate":"2014-03-28T11:55:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2014-1004","title":"Coalbed natural gas exploration, drilling activities, and geologic test results, 2007-2010","docAbstract":"<p>The U.S. Geological Survey, in partnership with the U.S. Bureau of Land Management, the North Slope Borough, and the Arctic Slope Regional Corporation conducted a four-year study designed to identify, define, and delineate a shallow coalbed natural gas (CBNG) resource with the potential to provide locally produced, affordable power to the community of Wainwright, Alaska. From 2007 through 2010, drilling and testing activities conducted at three sites in or near Wainwright, identified and evaluated an approximately 7.5-ft-thick, laterally continuous coalbed that contained significant quantities of CBNG. This coalbed, subsequently named the Wainwright coalbed, was penetrated at depths ranging from 1,167 ft to 1,300 ft below land surface. Core samples were collected from the Wainwright coalbed at all three drill locations and desorbed-gas measurements were taken from seventeen 1-ft-thick sections of the core. These measurements indicate that the Wainwright coalbed contains enough CBNG to serve as a long-term energy supply for the community.</p>\n\n<br>\n\n<p>Although attempts to produce viable quantities of CBNG from the Wainwright coalbed proved unsuccessful, it seems likely that with proper well-field design and by utilizing currently available drilling and reservoir stimulation techniques, this CBNG resource could be developed as a long-term economically viable energy source for Wainwright.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20141004","usgsCitation":"Clark, A.C., 2014, Coalbed natural gas exploration, drilling activities, and geologic test results, 2007-2010: U.S. Geological Survey Open-File Report 2014-1004, Report: vi, 65 p.; Plate 1: 63 p.; Plate 2: 29.34 x 47.42 inches, https://doi.org/10.3133/ofr20141004.","productDescription":"Report: vi, 65 p.; Plate 1: 63 p.; Plate 2: 29.34 x 47.42 inches","numberOfPages":"71","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-050928","costCenters":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"links":[{"id":285098,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20141004.jpg"},{"id":285095,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2014/1004/pdf/of2014-1004.pdf"},{"id":285096,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2014/1004/downloads/of2014-1004_plate1.pdf"},{"id":285097,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/of/2014/1004/downloads/of2014-1004_plate2.pdf"},{"id":285094,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2014/1004/"}],"country":"United States","state":"Alaska","city":"Wainwright","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -160.106,70.611 ], [ -160.106,70.685 ], [ -159.809,70.685 ], [ -159.809,70.611 ], [ -160.106,70.611 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5351702ee4b05569d805a19a","contributors":{"authors":[{"text":"Clark, Arthur C. aclark@usgs.gov","contributorId":2320,"corporation":false,"usgs":true,"family":"Clark","given":"Arthur","email":"aclark@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":490486,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70168816,"text":"70168816 - 2014 - Controls on methane released through ebullition in peatlands affected by permafrost degradation","interactions":[],"lastModifiedDate":"2016-03-04T10:31:50","indexId":"70168816","displayToPublicDate":"2014-03-28T11:30:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2320,"text":"Journal of Geophysical Research: Biogeosciences","active":true,"publicationSubtype":{"id":10}},"title":"Controls on methane released through ebullition in peatlands affected by permafrost degradation","docAbstract":"<p>Permafrost thaw in peat plateaus leads to the flooding of surface soils and the formation of collapse scar bogs, which have the potential to be large emitters of methane (CH<sub>4</sub>) from surface peat as well as deeper, previously frozen, permafrost carbon (C). We used a network of bubble traps, permanently installed 20&thinsp;cm and 60&thinsp;cm beneath the moss surface, to examine controls on ebullition from three collapse bogs in interior Alaska. Overall, ebullition was dominated by episodic events that were associated with changes in atmospheric pressure, and ebullition was mainly a surface process regulated by both seasonal ice dynamics and plant phenology. The majority (&gt;90%) of ebullition occurred in surface peat layers, with little bubble production in deeper peat. During periods of peak plant biomass, bubbles contained acetate-derived CH<sub>4</sub> dominated (&gt;90%) by modern C fixed from the atmosphere following permafrost thaw. Post-senescence, the contribution of CH<sub>4</sub> derived from thawing permafrost C was more variable and accounted for up to 22% (on average 7%), in the most recently thawed site. Thus, the formation of thermokarst features resulting from permafrost thaw in peatlands stimulates ebullition and CH<sub>4</sub> release both by creating flooded surface conditions conducive to CH<sub>4</sub> production and bubbling as well as by exposing thawing permafrost C to mineralization.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research: Biogeosciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Richmond, VA","doi":"10.1002/2013JG002441","usgsCitation":"Klapstein, S.J., Turetsky, M.R., McGuire, A.D., Harden, J.W., Czimczik, C., Xu, X., Chanton, J., and Waddington, J.M., 2014, Controls on methane released through ebullition in peatlands affected by permafrost degradation: Journal of Geophysical Research: Biogeosciences, v. 119, no. 3, p. 418-431, https://doi.org/10.1002/2013JG002441.","productDescription":"14 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David 0000-0003-4646-0750 ffadm@usgs.gov","orcid":"https://orcid.org/0000-0003-4646-0750","contributorId":166708,"corporation":false,"usgs":true,"family":"McGuire","given":"A.","email":"ffadm@usgs.gov","middleInitial":"David","affiliations":[{"id":200,"text":"Coop Res Unit Seattle","active":true,"usgs":true}],"preferred":false,"id":621846,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Harden, Jennifer W. 0000-0002-6570-8259 jharden@usgs.gov","orcid":"https://orcid.org/0000-0002-6570-8259","contributorId":1971,"corporation":false,"usgs":true,"family":"Harden","given":"Jennifer","email":"jharden@usgs.gov","middleInitial":"W.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true},{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true}],"preferred":true,"id":621880,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Czimczik, C.I.","contributorId":57274,"corporation":false,"usgs":true,"family":"Czimczik","given":"C.I.","email":"","affiliations":[],"preferred":false,"id":621881,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Xu, Xiaomei","contributorId":139915,"corporation":false,"usgs":false,"family":"Xu","given":"Xiaomei","email":"","affiliations":[{"id":13312,"text":"University of California-Irvine","active":true,"usgs":false}],"preferred":false,"id":621882,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Chanton, J. P.","contributorId":7429,"corporation":false,"usgs":false,"family":"Chanton","given":"J. P.","affiliations":[],"preferred":false,"id":621883,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Waddington, James Michael","contributorId":89774,"corporation":false,"usgs":true,"family":"Waddington","given":"James","email":"","middleInitial":"Michael","affiliations":[],"preferred":false,"id":621884,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70193623,"text":"70193623 - 2014 - Backprojection of volcanic tremor","interactions":[],"lastModifiedDate":"2019-03-06T10:11:59","indexId":"70193623","displayToPublicDate":"2014-03-28T00:00:00","publicationYear":"2014","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":"Backprojection of volcanic tremor","docAbstract":"<p>Backprojection has become a powerful tool for imaging the rupture process of global earthquakes. We demonstrate the ability of backprojection to illuminate and track volcanic sources as well. We apply the method to the seismic network from Okmok Volcano, Alaska, at the time of an escalation in tremor during the 2008 eruption. Although we are able to focus the wavefield close to the location of the active cone, the network array response lacks sufficient resolution to reveal kilometer-scale changes in tremor location. By deconvolving the response in successive backprojection images, we enhance resolution and find that the tremor source moved toward an intracaldera lake prior to its escalation. The increased tremor therefore resulted from magma-water interaction, in agreement with the overall phreatomagmatic character of the eruption. Imaging of eruption tremor shows that time reversal methods, such as backprojection, can provide new insights into the temporal evolution of volcanic sources.</p>","language":"English","publisher":"American Geophysical Union","doi":"10.1002/2013GL058836","usgsCitation":"Haney, M.M., 2014, Backprojection of volcanic tremor: Geophysical Research Letters, v. 41, no. 6, p. 1923-1928, https://doi.org/10.1002/2013GL058836.","productDescription":"6 p.","startPage":"1923","endPage":"1928","ipdsId":"IP-054027","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":348108,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Okmok Volcano","volume":"41","issue":"6","publishingServiceCenter":{"id":14,"text":"Menlo Park PSC"},"noUsgsAuthors":false,"publicationDate":"2014-03-19","publicationStatus":"PW","scienceBaseUri":"59fc2eabe4b0531197b27fab","contributors":{"authors":[{"text":"Haney, Matthew M. mhaney@usgs.gov","contributorId":2943,"corporation":false,"usgs":true,"family":"Haney","given":"Matthew","email":"mhaney@usgs.gov","middleInitial":"M.","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":false,"id":719658,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70099649,"text":"ofr20141024 - 2014 - The 1946 Unimak Tsunami Earthquake Area: revised tectonic structure in reprocessed seismic images and a suspect near field tsunami source","interactions":[],"lastModifiedDate":"2018-01-08T12:43:53","indexId":"ofr20141024","displayToPublicDate":"2014-03-26T09:00:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2014-1024","title":"The 1946 Unimak Tsunami Earthquake Area: revised tectonic structure in reprocessed seismic images and a suspect near field tsunami source","docAbstract":"<p>In 1946 at Unimak Pass, Alaska, a tsunami destroyed the lighthouse at Scotch Cap, Unimak Island, took 159 lives on the Hawaiian Islands, damaged island coastal facilities across the south Pacific, and destroyed a hut in Antarctica. The tsunami magnitude of 9.3 is comparable to the magnitude 9.1 tsunami that devastated the Tohoku coast of Japan in 2011. Both causative earthquake epicenters occurred in shallow reaches of the subduction zone. Contractile tectonism along the Alaska margin presumably generated the far-field tsunami by producing a seafloor elevation change. However, the Scotch Cap lighthouse was destroyed by a near-field tsunami that was probably generated by a coeval large undersea landslide, yet bathymetric surveys showed no fresh large landslide scar. We investigated this problem by reprocessing five seismic lines, presented here as high-resolution graphic images, both uninterpreted and interpreted, and available for the reader to download. In addition, the processed seismic data for each line are available for download as seismic industry-standard SEG-Y files. One line, processed through prestack depth migration, crosses a 10 &times; 15 kilometer and 800-meter-high hill presumed previously to be basement, but that instead is composed of stratified rock superimposed on the slope sediment. This image and multibeam bathymetry illustrate a slide block that could have sourced the 1946 near-field tsunami because it is positioned within a distance determined by the time between earthquake shaking and the tsunami arrival at Scotch Cap and is consistent with the local extent of high runup of 42 meters along the adjacent Alaskan coast. The Unimak/Scotch Cap margin is structurally similar to the 2011 Tohoku tsunamigenic margin where a large landslide at the trench, coeval with the Tohoku earthquake, has been documented. Further study can improve our understanding of tsunami sources along Alaska&rsquo;s erosional margins.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20141024","usgsCitation":"Miller, J.J., von Huene, R.E., and Ryan, H.F., 2014, The 1946 Unimak Tsunami Earthquake Area: revised tectonic structure in reprocessed seismic images and a suspect near field tsunami source: U.S. Geological Survey Open-File Report 2014-1024, Report: iii, 19 p.; Downloads Directory, https://doi.org/10.3133/ofr20141024.","productDescription":"Report: iii, 19 p.; Downloads Directory","numberOfPages":"22","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-051311","costCenters":[],"links":[{"id":284924,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20141024.jpg"},{"id":284922,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2014/1024/pdf/ofr2014-1024.pdf"},{"id":284923,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/of/2014/1024/downloads"},{"id":284914,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2014/1024/"}],"country":"United States","state":"Alaska","otherGeospatial":"Unimak Island","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -166.36596679687497,\n              52.05924589011585\n            ],\n            [\n              -166.36596679687497,\n              55.084655921502\n            ],\n            [\n              -159.609375,\n              55.084655921502\n            ],\n            [\n              -159.609375,\n              52.05924589011585\n            ],\n            [\n              -166.36596679687497,\n              52.05924589011585\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53517066e4b05569d805a3df","contributors":{"authors":[{"text":"Miller, John J. 0000-0002-9098-0967 jmiller@usgs.gov","orcid":"https://orcid.org/0000-0002-9098-0967","contributorId":3785,"corporation":false,"usgs":true,"family":"Miller","given":"John","email":"jmiller@usgs.gov","middleInitial":"J.","affiliations":[{"id":164,"text":"Central Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":491999,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"von Huene, Roland E. 0000-0003-1301-3866 rvonhuene@usgs.gov","orcid":"https://orcid.org/0000-0003-1301-3866","contributorId":191070,"corporation":false,"usgs":true,"family":"von Huene","given":"Roland","email":"rvonhuene@usgs.gov","middleInitial":"E.","affiliations":[{"id":7065,"text":"USGS emeritus","active":true,"usgs":false},{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":false,"id":492000,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ryan, Holly F. hryan@usgs.gov","contributorId":2375,"corporation":false,"usgs":true,"family":"Ryan","given":"Holly","email":"hryan@usgs.gov","middleInitial":"F.","affiliations":[],"preferred":false,"id":491998,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70099631,"text":"fs20143022 - 2014 - The 3D Elevation Program: summary for Montana","interactions":[],"lastModifiedDate":"2016-08-17T15:46:29","indexId":"fs20143022","displayToPublicDate":"2014-03-25T14:50:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2014-3022","title":"The 3D Elevation Program: summary for Montana","docAbstract":"<p>Elevation data are essential to a broad range of applications, including forest resources management, wildlife and habitat management, national security, recreation, and many others. For the State of Montana, elevation data are critical for flood risk management, infrastructure and construction management, agriculture and precision farming, geologic resource assessment and hazard mitigation, natural resources conservation, and other business uses. Today, high-density light detection and ranging (lidar) data are the primary sources for deriving elevation models and other datasets. Federal, State, Tribal, and local agencies work in partnership to (1) replace data that are older and of lower quality and (2) provide coverage where publicly accessible data do not exist. A joint goal of State and Federal partners is to acquire consistent, statewide coverage to support existing and emerging applications enabled by lidar data.</p>\n<p>The National Enhanced Elevation Assessment evaluated multiple elevation data acquisition options to determine the optimal data quality and data replacement cycle relative to cost to meet the identified requirements of the user community. The evaluation demonstrated that lidar acquisition at quality level 2 for the conterminous United States and quality level 5 ifsar data for Alaska with a 6- to 10-year acquisition cycle provided the highest benefit/cost ratios. The new 3D Elevation Program (3DEP) initiative selected an 8-year acquisition cycle for the respective quality levels. 3DEP, managed by the U.S. Geological Survey (USGS), the Office of Management and Budget Circular A&ndash;16 lead agency for terrestrial elevation data, responds to the growing need for high-quality topographic data and a wide range of other 3D representations of the Nation&rsquo;s natural and constructed features.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs20143022","usgsCitation":"Carswell, W., 2014, The 3D Elevation Program: summary for Montana: U.S. Geological Survey Fact Sheet 2014-3022, 2 p., https://doi.org/10.3133/fs20143022.","productDescription":"2 p.","onlineOnly":"Y","additionalOnlineFiles":"N","ipdsId":"IP-052808","costCenters":[{"id":423,"text":"National Geospatial 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William J. Jr. carswell@usgs.gov","contributorId":1787,"corporation":false,"usgs":true,"family":"Carswell","given":"William J.","suffix":"Jr.","email":"carswell@usgs.gov","affiliations":[{"id":423,"text":"National Geospatial Program","active":true,"usgs":true}],"preferred":false,"id":491994,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70099286,"text":"70099286 - 2014 - New permafrost is forming around shrinking Arctic lakes, but will it last?","interactions":[],"lastModifiedDate":"2018-01-12T17:20:40","indexId":"70099286","displayToPublicDate":"2014-03-24T11:33:00","publicationYear":"2014","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":"New permafrost is forming around shrinking Arctic lakes, but will it last?","docAbstract":"Widespread lake shrinkage in cold regions has been linked to climate warming and permafrost thaw. Permafrost aggradation, however, has been observed within the margins of recently receded lakes, in seeming contradiction of climate warming. Here permafrost aggradation dynamics are examined at Twelvemile Lake, a retreating lake in interior Alaska. Observations reveal patches of recently formed permafrost within the dried lake margin, colocated with discrete bands of willow shrub. We test ecological succession, which alters shading, infiltration, and heat transport, as the driver of aggradation using numerical simulation of variably saturated groundwater flow and heat transport with phase change (i.e., freeze-thaw). Simulations support permafrost development under current climatic conditions, but only when net effects of vegetation on soil conditions are incorporated, thus pointing to the role of ecological succession. Furthermore, model results indicate that permafrost aggradation is transitory with further climate warming, as new permafrost thaws within seven decades.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Research Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","doi":"10.1002/2014GL059251","usgsCitation":"Briggs, M., Walvoord, M.A., McKenzie, J.M., Voss, C.I., Day-Lewis, F.D., and Lane, J.W., 2014, New permafrost is forming around shrinking Arctic lakes, but will it last?: Geophysical Research Letters, v. 41, no. 5, p. 1585-1592, https://doi.org/10.1002/2014GL059251.","productDescription":"8 p.","startPage":"1585","endPage":"1592","ipdsId":"IP-053609","costCenters":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true}],"links":[{"id":473098,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1002/2014gl059251","text":"Publisher Index Page"},{"id":284385,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/2014GL059251"},{"id":284387,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","otherGeospatial":"Twelvemile Lake","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -145.570227,66.434705 ], [ -145.570227,66.4607 ], [ -145.501777,66.4607 ], [ -145.501777,66.434705 ], [ -145.570227,66.434705 ] ] ] } } ] }","volume":"41","issue":"5","noUsgsAuthors":false,"publicationDate":"2014-03-07","publicationStatus":"PW","scienceBaseUri":"53517057e4b05569d805a341","contributors":{"authors":[{"text":"Briggs, Martin A.","contributorId":10321,"corporation":false,"usgs":true,"family":"Briggs","given":"Martin A.","affiliations":[],"preferred":false,"id":491951,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Walvoord, Michelle Ann 0000-0003-4269-8366 walvoord@usgs.gov","orcid":"https://orcid.org/0000-0003-4269-8366","contributorId":147211,"corporation":false,"usgs":true,"family":"Walvoord","given":"Michelle","email":"walvoord@usgs.gov","middleInitial":"Ann","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":491953,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McKenzie, Jeffrey M.","contributorId":64999,"corporation":false,"usgs":true,"family":"McKenzie","given":"Jeffrey","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":491952,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Voss, Clifford I. 0000-0001-5923-2752 cvoss@usgs.gov","orcid":"https://orcid.org/0000-0001-5923-2752","contributorId":1559,"corporation":false,"usgs":true,"family":"Voss","given":"Clifford","email":"cvoss@usgs.gov","middleInitial":"I.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":491948,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Day-Lewis, Frederick D. 0000-0003-3526-886X daylewis@usgs.gov","orcid":"https://orcid.org/0000-0003-3526-886X","contributorId":1672,"corporation":false,"usgs":true,"family":"Day-Lewis","given":"Frederick","email":"daylewis@usgs.gov","middleInitial":"D.","affiliations":[{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":491949,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Lane, John W. Jr. jwlane@usgs.gov","contributorId":1738,"corporation":false,"usgs":true,"family":"Lane","given":"John","suffix":"Jr.","email":"jwlane@usgs.gov","middleInitial":"W.","affiliations":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true}],"preferred":false,"id":491950,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70094915,"text":"fs20143013 - 2014 - The 3D Elevation Program: summary for Maine","interactions":[],"lastModifiedDate":"2016-08-17T15:47:53","indexId":"fs20143013","displayToPublicDate":"2014-03-24T07:28:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2014-3013","title":"The 3D Elevation Program: summary for Maine","docAbstract":"<p>Elevation data are essential to a broad range of applications, including forest resources management, wildlife and habitat management, national security, recreation, and many others. For the State of Maine, elevation data are critical for natural resources conservation, flood risk management, forest resources management, agriculture and precision farming, coastal zone management, and other business uses. Today, high-density light detection and ranging (lidar) data are the primary sources for deriving elevation models and other datasets. Federal, State, Tribal, and local agencies work in partnership to (1) replace data that are older and of lower quality and (2) provide coverage where publicly accessible data do not exist. A joint goal of State and Federal partners is to acquire consistent, statewide coverage to support existing and emerging applications enabled by lidar data.</p>\n<p>The National Enhanced Elevation Assessment evaluated multiple elevation data acquisition options to determine the optimal data quality and data replacement cycle relative to cost to meet the identified requirements of the user community. The evaluation demonstrated that lidar acquisition at quality level 2 for the conterminous United States and quality level 5 ifsar data for Alaska with a 6- to 10-year acquisition cycle provided the highest benefit/cost ratios. The 3D Elevation Program (3DEP) initiative selected an 8-year acquisition cycle for the respective quality levels. 3DEP, managed by the U.S. Geological Survey (USGS), the Office of Management and Budget Circular A&ndash;16 lead agency for terrestrial elevation data, responds to the growing need for high-quality topographic data and a wide range of other 3D representations of the Nation&rsquo;s natural and constructed features.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs20143013","usgsCitation":"Carswell, W., 2014, The 3D Elevation Program: summary for Maine: U.S. Geological Survey Fact Sheet 2014-3013, 2 p., https://doi.org/10.3133/fs20143013.","productDescription":"2 p.","onlineOnly":"Y","additionalOnlineFiles":"N","ipdsId":"IP-052810","costCenters":[{"id":423,"text":"National Geospatial Program","active":true,"usgs":true}],"links":[{"id":284364,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs20143013.jpg"},{"id":284362,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/fs/2014/3013/"},{"id":284363,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/2014/3013/pdf/fs2014-3013.pdf","text":"Report","size":"344 KB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"}],"country":"United 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Jr. carswell@usgs.gov","contributorId":1787,"corporation":false,"usgs":true,"family":"Carswell","given":"William J.","suffix":"Jr.","email":"carswell@usgs.gov","affiliations":[{"id":423,"text":"National Geospatial Program","active":true,"usgs":true}],"preferred":false,"id":490945,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70133181,"text":"70133181 - 2014 - Comparative population structure of cavity-nesting sea ducks","interactions":[],"lastModifiedDate":"2018-07-14T13:45:18","indexId":"70133181","displayToPublicDate":"2014-03-19T00:00:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3544,"text":"The Auk","onlineIssn":"1938-4254","printIssn":"0004-8038","active":true,"publicationSubtype":{"id":10}},"title":"Comparative population structure of cavity-nesting sea ducks","docAbstract":"<p><span>A growing collection of mtDNA genetic information from waterfowl species across North America suggests that larger-bodied cavity-nesting species exhibit greater levels of population differentiation than smaller-bodied congeners. Although little is known about nest-cavity availability for these species, one hypothesis to explain differences in population structure is reduced dispersal tendency of larger-bodied cavity-nesting species due to limited abundance of large cavities. To investigate this hypothesis, we examined population structure of three cavity-nesting waterfowl species distributed across much of North America: Barrow's Goldeneye (</span><i><i>Bucephala islandica</i></i><span>), Common Goldeneye (</span><i><i>B. clangula</i></i><span>), and Bufflehead (</span><i><i>B. albeola</i></i><span>). We compared patterns of population structure using both variation in mtDNA control-region sequences and band-recovery data for the same species and geographic regions. Results were highly congruent between data types, showing structured population patterns for Barrow's and Common Goldeneye but not for Bufflehead. Consistent with our prediction, the smallest cavity-nesting species, the Bufflehead, exhibited the lowest level of population differentiation due to increased dispersal and gene flow. Results provide evidence for discrete Old and New World populations of Common Goldeneye and for differentiation of regional groups of both goldeneye species in Alaska, the Pacific Northwest, and the eastern coast of North America. Results presented here will aid management objectives that require an understanding of population delineation and migratory connectivity between breeding and wintering areas. Comparative studies such as this one highlight factors that may drive patterns of genetic diversity and population trends.</span></p>","language":"English","publisher":"American Ornithological Society","doi":"10.1642/AUK-13-071.1","usgsCitation":"Pearce, J.M., Eadie, J.M., Savard, J.L., Christensen, T.K., Berdeen, J., Taylor, E., Boyd, S., and Einarsson, A., 2014, Comparative population structure of cavity-nesting sea ducks: The Auk, v. 131, no. 2, p. 195-207, https://doi.org/10.1642/AUK-13-071.1.","productDescription":"13 p.","startPage":"195","endPage":"207","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-049100","costCenters":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"links":[{"id":473102,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1642/auk-13-071.1","text":"Publisher Index Page"},{"id":296071,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"131","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5465d630e4b04d4b7dbd6594","contributors":{"authors":[{"text":"Pearce, John M. 0000-0002-8503-5485 jpearce@usgs.gov","orcid":"https://orcid.org/0000-0002-8503-5485","contributorId":181766,"corporation":false,"usgs":true,"family":"Pearce","given":"John","email":"jpearce@usgs.gov","middleInitial":"M.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true}],"preferred":true,"id":524849,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Eadie, John M.","contributorId":34067,"corporation":false,"usgs":false,"family":"Eadie","given":"John","email":"","middleInitial":"M.","affiliations":[{"id":6961,"text":"Department of Wildlife, Fish & Conservation Biology, University of California, Davis","active":true,"usgs":false}],"preferred":false,"id":525141,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Savard, Jean-Pierre L.","contributorId":101776,"corporation":false,"usgs":false,"family":"Savard","given":"Jean-Pierre","email":"","middleInitial":"L.","affiliations":[{"id":6962,"text":"Science and Technology Branch, Environment Canada","active":true,"usgs":false}],"preferred":false,"id":525142,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Christensen, Thomas K.","contributorId":69381,"corporation":false,"usgs":false,"family":"Christensen","given":"Thomas","email":"","middleInitial":"K.","affiliations":[{"id":6963,"text":"Department of Bioscience, Aarhus University","active":true,"usgs":false}],"preferred":false,"id":525143,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Berdeen, James","contributorId":54319,"corporation":false,"usgs":false,"family":"Berdeen","given":"James","email":"","affiliations":[{"id":6964,"text":"Minnesota Department of Natural Resources","active":true,"usgs":false}],"preferred":false,"id":525144,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Taylor, Eric J.","contributorId":41966,"corporation":false,"usgs":false,"family":"Taylor","given":"Eric J.","affiliations":[{"id":6661,"text":"US Fish and Wildlife Service","active":true,"usgs":false}],"preferred":false,"id":525145,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Boyd, Sean","contributorId":76672,"corporation":false,"usgs":false,"family":"Boyd","given":"Sean","affiliations":[{"id":6962,"text":"Science and Technology Branch, Environment Canada","active":true,"usgs":false}],"preferred":false,"id":525146,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Einarsson, Arni","contributorId":127434,"corporation":false,"usgs":false,"family":"Einarsson","given":"Arni","email":"","affiliations":[{"id":6965,"text":"Mývatn Research Station and Department of Life and Environmental Sciences, University of Iceland","active":true,"usgs":false}],"preferred":false,"id":525147,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70094503,"text":"pp1776E - 2014 - Geochronology of plutonic rocks and their tectonic terranes in Glacier Bay National Park and Preserve, southeast Alaska","interactions":[{"subject":{"id":70094503,"text":"pp1776E - 2014 - Geochronology of plutonic rocks and their tectonic terranes in Glacier Bay National Park and Preserve, southeast Alaska","indexId":"pp1776E","publicationYear":"2014","noYear":false,"chapter":"E","title":"Geochronology of plutonic rocks and their tectonic terranes in Glacier Bay National Park and Preserve, southeast Alaska"},"predicate":"IS_PART_OF","object":{"id":98607,"text":"pp1776 - 2010 - Studies by the U.S. Geological Survey in Alaska, 2008-2009","indexId":"pp1776","publicationYear":"2010","noYear":false,"title":"Studies by the U.S. Geological Survey in Alaska, 2008-2009"},"id":1}],"isPartOf":{"id":98607,"text":"pp1776 - 2010 - Studies by the U.S. Geological Survey in Alaska, 2008-2009","indexId":"pp1776","publicationYear":"2010","noYear":false,"title":"Studies by the U.S. Geological Survey in Alaska, 2008-2009"},"lastModifiedDate":"2022-12-09T23:51:12.887805","indexId":"pp1776E","displayToPublicDate":"2014-03-17T13:10:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":331,"text":"Professional Paper","code":"PP","onlineIssn":"2330-7102","printIssn":"1044-9612","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"1776","chapter":"E","title":"Geochronology of plutonic rocks and their tectonic terranes in Glacier Bay National Park and Preserve, southeast Alaska","docAbstract":"<p>We have identified six major belts and two nonbelt occurrences of plutonic rocks in Glacier Bay National Park and Preserve and characterized them on the basis of geologic mapping, igneous petrology, geochemistry, and isotopic dating. The six plutonic belts and two other occurrences are, from oldest to youngest: (1) Jurassic (201.6–145.5 Ma) diorite and gabbro of the Lituya belt; (2) Late Jurassic (161.0–145.5 Ma) leucotonalite in Johns Hopkins Inlet; (3) Early Cretaceous (145.5–99.6 Ma) granodiorite and tonalite of the Muir-Chichagof belt; (4) Paleocene tonalite in Johns Hopkins Inlet (65.5–55.8 Ma); (5) Eocene granodiorite of the Sanak-Baranof belt; (6) Eocene and Oligocene (55.8–23.0 Ma) granodiorite, quartz diorite, and granite of the Muir-Fairweather felsic-intermediate belt; (7) Eocene and Oligocene (55.8–23.0 Ma) layered gabbros of the Crillon-La Perouse mafic belt; and (8) Oligocene (33.9–23.0 Ma) quartz monzonite and quartz syenite of the Tkope belt. The rocks are further classified into 17 different combination age-compositional units; some younger belts are superimposed on older ones. Almost all these plutonic rocks are related to Cretaceous and Tertiary subduction events.</p>\n<br/>\n<p>The six major plutonic belts intrude the three southeast Alaska geographic subregions in Glacier Bay National Park and Preserve, from west to east: (1) the Coastal Islands, (2) the Tarr Inlet Suture Zone (which contains the Border Ranges Fault Zone), and (3) the Central Alexander Archipelago. Each subregion includes rocks assigned to one or more tectonic terranes.</p>\n<br/>\n<p>The various plutonic belts intrude different terranes in different subregions. In general, the Early Cretaceous plutons intrude rocks of the Alexander and Wrangellia terranes in the Central Alexander Archipelago subregion, and the Paleogene plutons intrude rocks of the Chugach, Alexander, and Wrangellia terranes in the Coastal Islands, Tarr Inlet Suture Zone, and Central Alexander Archipelago subregions.</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Studies by the U.S. Geological Survey in Alaska, 2008-2009 (Professional Paper 1776)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/pp1776E","collaboration":"Prepared in cooperation with the National Park Service.","usgsCitation":"Brew, D.A., Tellier, K.E., Lanphere, M.A., Nielsen, D.C., Smith, J., and Sonnevil, R.A., 2014, Geochronology of plutonic rocks and their tectonic terranes in Glacier Bay National Park and Preserve, southeast Alaska: U.S. Geological Survey Professional Paper 1776, Report: iv, 18 p.; 1 Plate: 17.0 x 11.0 inches, https://doi.org/10.3133/pp1776E.","productDescription":"Report: iv, 18 p.; 1 Plate: 17.0 x 11.0 inches","numberOfPages":"26","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-041762","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":284080,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/pp1776E.jpg"},{"id":284079,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/pp/1776/e/pdf/pp1776E_figure1.pdf"},{"id":284078,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/pp/1776/e/pdf/pp1776E.pdf"},{"id":284077,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/pp/1776/e/"}],"country":"United States","state":"Alaska","otherGeospatial":"Central Alexander Archipelago, Glacier Bay National Park And Preserve, Johns Hopkins Inlet","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -138.0,58.1 ], [ -138.0,59.3 ], [ -135.0,59.3 ], [ -135.0,58.1 ], [ -138.0,58.1 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd5b0ee4b0b290850f9c4c","contributors":{"authors":[{"text":"Brew, David A. dbrew@usgs.gov","contributorId":3244,"corporation":false,"usgs":true,"family":"Brew","given":"David","email":"dbrew@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":490657,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Tellier, Kathleen E.","contributorId":25860,"corporation":false,"usgs":true,"family":"Tellier","given":"Kathleen","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":490658,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lanphere, Marvin A. alder@usgs.gov","contributorId":2696,"corporation":false,"usgs":true,"family":"Lanphere","given":"Marvin","email":"alder@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":490656,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nielsen, Diane C.","contributorId":50401,"corporation":false,"usgs":true,"family":"Nielsen","given":"Diane","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":490660,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Smith, James G.","contributorId":98712,"corporation":false,"usgs":true,"family":"Smith","given":"James G.","affiliations":[],"preferred":false,"id":490661,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Sonnevil, Ronald A.","contributorId":30132,"corporation":false,"usgs":true,"family":"Sonnevil","given":"Ronald","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":490659,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70095819,"text":"ofr20141051 - 2014 - Mercury in fishes from 21 national parks in the Western United States: inter- and intra-park variation in concentrations and ecological risk","interactions":[],"lastModifiedDate":"2014-07-22T11:29:49","indexId":"ofr20141051","displayToPublicDate":"2014-03-14T14:36:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2014-1051","title":"Mercury in fishes from 21 national parks in the Western United States: inter- and intra-park variation in concentrations and ecological risk","docAbstract":"<p>Mercury (Hg) is a global contaminant and human activities have increased atmospheric Hg concentrations 3- to 5-fold during the past 150 years. This increased release into the atmosphere has resulted in elevated loadings to aquatic habitats where biogeochemical processes promote the microbial conversion of inorganic Hg to methylmercury, the bioavailable form of Hg. The physicochemical properties of Hg and its complex environmental cycle have resulted in some of the most remote and protected areas of the world becoming contaminated with Hg concentrations that threaten ecosystem and human health. The national park network in the United States is comprised of some of the most pristine and sensitive wilderness in North America. There is concern that via global distribution, Hg contamination could threaten the ecological integrity of aquatic communities in the parks and the wildlife that depends on them. In this study, we examined Hg concentrations in non-migratory freshwater fish in 86 sites across 21 national parks in the Western United States. We report Hg concentrations of more than 1,400 fish collected in waters extending over a 4,000 kilometer distance, from Alaska to the arid Southwest. Across all parks, sites, and species, fish total Hg (THg) concentrations ranged from 9.9 to 1,109 nanograms per gram wet weight (ng/g ww) with a mean of 77.7 ng/g ww. We found substantial variation in fish THg concentrations among and within parks, suggesting that patterns of Hg risk are driven by processes occurring at a combination of scales. Additionally, variation (up to 20-fold) in site-specific fish THg concentrations within individual parks suggests that more intensive sampling in some parks will be required to effectively characterize Hg contamination in western national parks.</p>\n<br/>\n<p>Across all fish sampled, only 5 percent had THg concentrations exceeding a benchmark (200 ng/g ww) associated with toxic responses within the fish themselves. However, Hg concentrations in 35 percent of fish sampled were above a benchmark for risk to highly sensitive avian consumers (90 ng/g ww), and THg concentrations in 68 percent of fish sampled were above exposure levels recommended by the Great Lakes Advisory Group (50 ng/g ww) for unlimited consumption by humans. Of the fish assessed for risk to human consumers (that is, species that are large enough to be consumed by recreational or subsistence anglers), only one individual fish from Yosemite National Park had a muscle Hg concentration exceeding the benchmark (950 ng/g ww) at which no human consumption is advised. Zion, Capital Reef, Wrangell-St. Elias, and Lake Clark National Parks all contained sites in which most fish exceeded benchmarks for the protection of human and wildlife health. This finding is particularly concerning in Zion and Capitol Reef National Parks because the fish from these parks were speckled dace, a small, invertebrate-feeding species, yet their Hg concentrations were as high or higher than those in the largest, long-lived predatory species, such as lake trout. Future targeted research and monitoring across park habitats would help identify patterns of Hg distribution across the landscape and facilitate management decisions aimed at reducing the ecological risk posed by Hg contamination in sensitive ecosystems protected by the National Park Service.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20141051","issn":"2331-1258","collaboration":"Prepared in cooperation with the National Park Service, Air Resources Division","usgsCitation":"Eagles-Smith, C.A., Willacker, J.J., and Flanagan Pritz, C.M., 2014, Mercury in fishes from 21 national parks in the Western United States: inter- and intra-park variation in concentrations and ecological risk: U.S. Geological Survey Open-File Report 2014-1051, vi, 54 p., https://doi.org/10.3133/ofr20141051.","productDescription":"vi, 54 p.","numberOfPages":"64","onlineOnly":"Y","ipdsId":"IP-053804","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true}],"links":[{"id":284034,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20141051.jpg"},{"id":284032,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2014/1051/"},{"id":284033,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2014/1051/pdf/ofr2014-1051.pdf"}],"country":"United States","state":"Alaska;Arizona;California;Colorado;Idaho;Montana;Nevada;New Mexico;Oregon;Utah;Washington","otherGeospatial":"Captiol Reef;Crater Lake;Denali;Glacier;Glacier Bay;Grand Canyon;Grand Teton;Great Basin;Great Sand Dunes;Lake Clark;Lassen Volcanic;Mesa Verde;Mount Rainer;North Cascades;Olympic;Rocky Mountain;Sequoia-kings Canyon;Yellowstone;Yosemite;Zion","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -161.53,31.29 ], [ -161.53,68.24 ], [ -103.06,68.24 ], [ -103.06,31.29 ], [ -161.53,31.29 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd669be4b0b29085100dce","contributors":{"authors":[{"text":"Eagles-Smith, Collin A. 0000-0003-1329-5285 ceagles-smith@usgs.gov","orcid":"https://orcid.org/0000-0003-1329-5285","contributorId":505,"corporation":false,"usgs":true,"family":"Eagles-Smith","given":"Collin","email":"ceagles-smith@usgs.gov","middleInitial":"A.","affiliations":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true},{"id":518,"text":"Oregon Water Science Center","active":true,"usgs":true},{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":491460,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Willacker, James J. jwillacker@usgs.gov","contributorId":5614,"corporation":false,"usgs":true,"family":"Willacker","given":"James","email":"jwillacker@usgs.gov","middleInitial":"J.","affiliations":[{"id":289,"text":"Forest and Rangeland Ecosys Science Center","active":true,"usgs":true}],"preferred":true,"id":491461,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Flanagan Pritz, Colleen M.","contributorId":64156,"corporation":false,"usgs":true,"family":"Flanagan Pritz","given":"Colleen","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":491462,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70095233,"text":"70095233 - 2014 - Comparison of smoothing methods for the development of a smoothed seismicity model for Alaska and the implications for seismic hazard","interactions":[],"lastModifiedDate":"2014-07-04T11:56:52","indexId":"70095233","displayToPublicDate":"2014-03-14T11:53:27","publicationYear":"2014","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":12,"text":"Conference publication"},"title":"Comparison of smoothing methods for the development of a smoothed seismicity model for Alaska and the implications for seismic hazard","docAbstract":"<p>In anticipation of the update of the Alaska seismic hazard maps (ASHMs) by the U. S. Geological Survey, we report progress on the comparison of smoothed seismicity models developed using fixed and adaptive smoothing algorithms, and investigate the sensitivity of seismic hazard to the models. While fault-based sources, such as those for great earthquakes in the Alaska-Aleutian subduction zone and for the ~10 shallow crustal faults within Alaska, dominate the seismic hazard estimates for locations near to the sources, smoothed seismicity rates make important contributions to seismic hazard away from fault-based sources and where knowledge of recurrence and magnitude is not sufficient for use in hazard studies. Recent developments in adaptive smoothing methods and statistical tests for evaluating and comparing rate models prompt us to investigate the appropriateness of adaptive smoothing for the ASHMs. We develop smoothed seismicity models for Alaska using fixed and adaptive smoothing methods and compare the resulting models by calculating and evaluating the joint likelihood test. We use the earthquake catalog, and associated completeness levels, developed for the 2007 ASHM to produce fixed-bandwidth-smoothed models with smoothing distances varying from 10 to 100 km and adaptively smoothed models. Adaptive smoothing follows the method of Helmstetter et al. and defines a unique smoothing distance for each earthquake epicenter from the distance to the nth nearest neighbor. The consequence of the adaptive smoothing methods is to reduce smoothing distances, causing locally increased seismicity rates, where seismicity rates are high and to increase smoothing distances where seismicity is sparse. We follow guidance from previous studies to optimize the neighbor number (n-value) by comparing model likelihood values, which estimate the likelihood that the observed earthquake epicenters from the recent catalog are derived from the smoothed rate models. We compare likelihood values from all rate models to rank the smoothing methods. We find that adaptively smoothed seismicity models yield better likelihood values than the fixed smoothing models. Holding all other (source and ground motion) models constant, we calculate seismic hazard curves for all points across Alaska on a 0.1 degree grid, using the adaptively smoothed and fixed smoothed seismicity models separately. Because adaptively smoothed models concentrate seismicity near the earthquake epicenters where seismicity rates are high, the corresponding hazard values are higher, locally, but reduced with distance from observed seismicity, relative to the hazard from fixed-bandwidth models. We suggest that adaptively smoothed seismicity models be considered for implementation in the update to the ASHMs because of their improved likelihood estimates relative to fixed smoothing methods; however, concomitant increases in seismic hazard will cause significant changes in regions of high seismicity, such as near the subduction zone, northeast of Kotzebue, and along the NNE trending zone of seismicity in the Alaskan interior.</p>","largerWorkTitle":"American Geophysical Union, Fall Meeting 2013","conferenceTitle":"American Geophysical Union, Fall Meeting 2013","conferenceDate":"2013-12-01T00:00:00","conferenceLocation":"San Francisco, CA","language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","usgsCitation":"Moschetti, M.P., Mueller, C.S., Boyd, O.S., and Petersen, M.D., 2014, Comparison of smoothing methods for the development of a smoothed seismicity model for Alaska and the implications for seismic hazard.","ipdsId":"IP-055149","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":289435,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ 172.4,51.2 ], [ 172.4,71.4 ], [ -130.0,71.4 ], [ -130.0,51.2 ], [ 172.4,51.2 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53b7b0cfe4b0388651d91682","contributors":{"authors":[{"text":"Moschetti, Morgan P. 0000-0001-7261-0295 mmoschetti@usgs.gov","orcid":"https://orcid.org/0000-0001-7261-0295","contributorId":1662,"corporation":false,"usgs":true,"family":"Moschetti","given":"Morgan","email":"mmoschetti@usgs.gov","middleInitial":"P.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":491137,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Mueller, Charles S. 0000-0002-1868-9710 cmueller@usgs.gov","orcid":"https://orcid.org/0000-0002-1868-9710","contributorId":955,"corporation":false,"usgs":true,"family":"Mueller","given":"Charles","email":"cmueller@usgs.gov","middleInitial":"S.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":false,"id":491134,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Boyd, Oliver S. olboyd@usgs.gov","contributorId":956,"corporation":false,"usgs":true,"family":"Boyd","given":"Oliver","email":"olboyd@usgs.gov","middleInitial":"S.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":false,"id":491135,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Petersen, Mark D. 0000-0001-8542-3990 mpetersen@usgs.gov","orcid":"https://orcid.org/0000-0001-8542-3990","contributorId":1163,"corporation":false,"usgs":true,"family":"Petersen","given":"Mark","email":"mpetersen@usgs.gov","middleInitial":"D.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true},{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":491136,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70094917,"text":"fs20143014 - 2014 - The 3D Elevation Program: summary for Oregon","interactions":[],"lastModifiedDate":"2016-08-17T15:49:05","indexId":"fs20143014","displayToPublicDate":"2014-03-12T11:49:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2014-3014","title":"The 3D Elevation Program: summary for Oregon","docAbstract":"<p>Elevation data are essential to a broad range of business uses, including forest resources management, wildlife and habitat management, national security, recreation, and many others. In the State of Oregon, elevation data are critical for river and stream resource management; forest resources management; water supply and quality; infrastructure and construction management; wildfire management, planning and response; natural resources conservation; and other business uses. Today, high-density light detection and ranging (lidar) data are the primary source for deriving elevation models and other datasets. The Oregon Lidar Consortium (OLC), led by the Oregon Department of Geology and Mineral Industries (DOGAMI), has developed partnerships with Federal, State, Tribal, and local agencies to acquire quality level 1 data in areas of shared interest. The goal of OLC partners is to acquire consistent, high-resolution and high-quality statewide coverage to support existing and emerging applications enabled by lidar data.</p>\n<p>The National Enhanced Elevation Assessment evaluated multiple elevation data acquisition options to determine the optimal data quality and data replacement cycle relative to cost to meet the identified requirements of the user community. The evaluation demonstrated that lidar acquisition at quality level 2 for the conterminous United States and quality level 5 ifsar data for Alaska with a 6- to 10-year acquisition cycle provided the highest benefit/cost ratios. The 3D Elevation Program (3DEP) initiative selected an 8-year acquisition cycle for the respective quality levels. 3DEP, managed by the U.S. Geological Survey (USGS), the Office of Management and Budget Circular A&ndash;16 lead agency for terrestrial elevation data, responds to the growing need for high-quality topographic data and a wide range of other 3D representations of the Nation&rsquo;s natural and constructed features.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs20143014","usgsCitation":"Carswell, W., 2014, The 3D Elevation Program: summary for Oregon: U.S. Geological Survey Fact Sheet 2014-3014, 2 p., https://doi.org/10.3133/fs20143014.","productDescription":"2 p.","onlineOnly":"Y","additionalOnlineFiles":"N","ipdsId":"IP-054086","costCenters":[{"id":423,"text":"National Geospatial Program","active":true,"usgs":true}],"links":[{"id":283886,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs20143014.jpg"},{"id":283885,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/2014/3014/pdf/fs2014-3014.pdf","text":"Report","size":"408 KB","linkFileType":{"id":1,"text":"pdf"},"description":"Report"},{"id":283884,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/fs/2014/3014/"}],"country":"United States","state":"Oregon","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"id\":\"40\",\"properties\":{\"name\":\"Oregon\",\"nation\":\"USA  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William J. Jr. carswell@usgs.gov","contributorId":1787,"corporation":false,"usgs":true,"family":"Carswell","given":"William J.","suffix":"Jr.","email":"carswell@usgs.gov","affiliations":[{"id":423,"text":"National Geospatial Program","active":true,"usgs":true}],"preferred":false,"id":490947,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70094916,"text":"fs20143012 - 2014 - The 3D Elevation Program: summary for Kentucky","interactions":[],"lastModifiedDate":"2016-08-17T15:50:18","indexId":"fs20143012","displayToPublicDate":"2014-03-12T11:36:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2014-3012","title":"The 3D Elevation Program: summary for Kentucky","docAbstract":"<p>Elevation data are essential to a broad range of applications, including forest resources management, wildlife and habitat management, national security, recreation, and many others. For the Commonwealth of Kentucky, elevation data are critical for agriculture and precision farming, natural resources conservation, flood risk management, infrastructure and construction management, forest resources management, geologic resource assessment and hazards mitigation, and other business uses. Today, high-density light detection and ranging (lidar) data are the primary sources for deriving elevation models and other datasets. Federal, State, Tribal, and local agencies work in partnership to (1) replace data that are older and of lower quality and (2) provide coverage where publicly accessible data do not exist. A joint goal of State and Federal partners is to acquire consistent, statewide coverage to support existing and emerging applications enabled by lidar data. &ldquo;Kentucky from Above,&rdquo; the Kentucky Aerial Photography and Elevation Data Program (<a href=\"http://kygeonet.ky.gov/kyfromabove/\" target=\"_blank\">http://kygeonet.ky.gov/kyfromabove/</a>), provides statewide lidar coordination with local, Commonwealth, and national groups in support of 3DEP for the Commonwealth.</p>\n<p>The National Enhanced Elevation Assessment evaluated multiple elevation data acquisition options to determine the optimal data quality and data replacement cycle relative to cost to meet the identified requirements of the user community. The evaluation demonstrated that lidar acquisition at quality level 2 for the conterminous United States and quality level 5 ifsar data for Alaska with a 6- to 10-year acquisition cycle provided the highest benefit/cost ratios. The 3D Elevation Program (3DEP) initiative selected an 8-year acquisition cycle for the respective quality levels. 3DEP, managed by the U.S. Geological Survey (USGS), the Office of Management and Budget Circular A&ndash;16 lead agency for terrestrial elevation data, responds to the growing need for high-quality topographic data and a wide range of other 3D representations of the Nation&rsquo;s natural and constructed features.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs20143012","usgsCitation":"Carswell, W., 2014, The 3D Elevation Program: summary for Kentucky: U.S. Geological Survey Fact Sheet 2014-3012, 2 p., https://doi.org/10.3133/fs20143012.","productDescription":"2 p.","onlineOnly":"Y","additionalOnlineFiles":"N","ipdsId":"IP-052813","costCenters":[{"id":423,"text":"National Geospatial 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,{"id":70094155,"text":"fs20143008 - 2014 - The 3D Elevation Program: summary for Tennessee","interactions":[],"lastModifiedDate":"2016-08-17T15:51:26","indexId":"fs20143008","displayToPublicDate":"2014-03-12T11:29:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2014-3008","title":"The 3D Elevation Program: summary for Tennessee","docAbstract":"<p>Elevation data are essential to a broad range of applications, including forest resources management, wildlife and habitat management, national security, recreation, and many others. For the State of Tennessee, elevation data are critical for agriculture and precision farming, flood risk management, natural resources conservation, infrastructure and construction management, forest resources management, aviation navigation and safety, and other business uses. Today, high-density light detection and ranging (lidar) data are the primary sources for deriving elevation models and other datasets. Federal, State, Tribal, and local agencies work in partnership to (1) replace data that are older and of lower quality and (2) provide coverage where publicly accessible data do not exist. A joint goal of State and Federal partners is to acquire consistent, statewide coverage to support existing and emerging applications enabled by lidar data.</p>\n<p>The National Enhanced Elevation Assessment evaluated multiple elevation data acquisition options to determine the optimal data quality and data replacement cycle relative to cost to meet the identified requirements of the user community. The evaluation demonstrated that lidar acquisition at quality level 2 for the conterminous United States and quality level 5 ifsar data for Alaska with a 6- to 10-year acquisition cycle provided the highest benefit/cost ratios. The 3D Elevation Program (3DEP) initiative selected an 8-year acquisition cycle for the respective quality levels. 3DEP, managed by the U.S. Geological Survey (USGS), the Office of Management and Budget Circular A&ndash;16 lead agency for terrestrial elevation data, responds to the growing need for high-quality topographic data and a wide range of other 3D representations of the Nation&rsquo;s natural and constructed features.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs20143008","usgsCitation":"Carswell, W., 2014, The 3D Elevation Program: summary for Tennessee: U.S. Geological Survey Fact Sheet 2014-3008, 2 p., https://doi.org/10.3133/fs20143008.","productDescription":"2 p.","onlineOnly":"Y","additionalOnlineFiles":"N","ipdsId":"IP-052819","costCenters":[{"id":423,"text":"National Geospatial 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Jr. carswell@usgs.gov","contributorId":1787,"corporation":false,"usgs":true,"family":"Carswell","given":"William J.","suffix":"Jr.","email":"carswell@usgs.gov","affiliations":[{"id":423,"text":"National Geospatial Program","active":true,"usgs":true}],"preferred":false,"id":490476,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70095212,"text":"sim3291 - 2014 - Geologic map of the Kechumstuk fault zone in the Mount Veta area, Fortymile mining district, east-central Alaska","interactions":[],"lastModifiedDate":"2020-06-16T14:36:03.296289","indexId":"sim3291","displayToPublicDate":"2014-03-10T06:42:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":333,"text":"Scientific Investigations Map","code":"SIM","onlineIssn":"2329-132X","printIssn":"2329-1311","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"3291","title":"Geologic map of the Kechumstuk fault zone in the Mount Veta area, Fortymile mining district, east-central Alaska","docAbstract":"<p>This map was developed by the U.S. Geological Survey Mineral Resources Program to depict the fundamental geologic features for the western part of the Fortymile mining district of east-central Alaska, and to delineate the location of known bedrock mineral prospects and their relationship to rock types and structural features.</p><p>This geospatial map database presents a 1:63,360-scale geologic map for the Kechumstuk fault zone and surrounding area, which lies 55 km northwest of Chicken, Alaska. The Kechumstuk fault zone is a northeast-trending zone of faults that transects the crystalline basement rocks of the Yukon-Tanana Upland of the western part of the Fortymile mining district. The crystalline basement rocks include Paleozoic metasedimentary and metaigneous rocks as well as granitoid intrusions of Triassic, Jurassic, and Cretaceous age. The geologic units represented by polygons in this dataset are based on new geologic mapping and geochronological data coupled with an interpretation of regional and new geophysical data collected by the Alaska Department of Natural Resources, Division of Geological and Geophysical Surveys. The geochronological data are reported in the accompanying geologic map text and represent new U-Pb dates on zircons collected from the igneous and metaigneous units within the map area.</p>","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/sim3291","usgsCitation":"Day, W.C., O’Neill, J., Dusel-Bacon, C., Aleinikoff, J.N., and Siron, C.R., 2014, Geologic map of the Kechumstuk fault zone in the Mount Veta area, Fortymile mining district, east-central Alaska (Version 1.1: March 12, 2014; Version 1.0: March 10, 201): U.S. Geological Survey Scientific Investigations Map 3291, 1 Plate: 45.00 x 36.00 inches; HTML Document, https://doi.org/10.3133/sim3291.","productDescription":"1 Plate: 45.00 x 36.00 inches; HTML Document","onlineOnly":"Y","additionalOnlineFiles":"Y","ipdsId":"IP-051711","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"links":[{"id":375617,"rank":4,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/sim/3291/images/coverthb.jpg"},{"id":283773,"type":{"id":7,"text":"Companion Files"},"url":"https://pubs.usgs.gov/sim/3291/downloads/"},{"id":283772,"type":{"id":17,"text":"Plate"},"url":"https://pubs.usgs.gov/sim/3291/pdf/SIM3291.pdf"},{"id":283667,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/sim/3291/"}],"scale":"63360","projection":"Universal Transverse Mercator projection","datum":"1927 North American Datum","country":"United States","state":"Alaska","otherGeospatial":"Fortymile Mining District","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -143.4,64.0 ], [ -143.4,64.25 ], [ -142.666667,64.25 ], [ -142.666667,64.0 ], [ -143.4,64.0 ] ] ] } } ] }","edition":"Version 1.1: March 12, 2014; Version 1.0: March 10, 201","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd5c9de4b0b290850fa987","contributors":{"authors":[{"text":"Day, Warren C. 0000-0002-9278-2120 wday@usgs.gov","orcid":"https://orcid.org/0000-0002-9278-2120","contributorId":1308,"corporation":false,"usgs":true,"family":"Day","given":"Warren","email":"wday@usgs.gov","middleInitial":"C.","affiliations":[{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":491096,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"O’Neill, J. Michael","contributorId":98210,"corporation":false,"usgs":true,"family":"O’Neill","given":"J. Michael","affiliations":[],"preferred":false,"id":491099,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dusel-Bacon, Cynthia 0000-0001-8481-739X cdusel@usgs.gov","orcid":"https://orcid.org/0000-0001-8481-739X","contributorId":2797,"corporation":false,"usgs":true,"family":"Dusel-Bacon","given":"Cynthia","email":"cdusel@usgs.gov","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":491098,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Aleinikoff, John N. 0000-0003-3494-6841 jaleinikoff@usgs.gov","orcid":"https://orcid.org/0000-0003-3494-6841","contributorId":1478,"corporation":false,"usgs":true,"family":"Aleinikoff","given":"John","email":"jaleinikoff@usgs.gov","middleInitial":"N.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":491097,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Siron, Christopher R.","contributorId":106410,"corporation":false,"usgs":true,"family":"Siron","given":"Christopher","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":491100,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70094668,"text":"fs20143018 - 2014 - The 1964 Great Alaska Earthquake and tsunamis: a modern perspective and enduring legacies","interactions":[],"lastModifiedDate":"2014-04-22T08:48:12","indexId":"fs20143018","displayToPublicDate":"2014-03-05T08:09:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":313,"text":"Fact Sheet","code":"FS","onlineIssn":"2327-6932","printIssn":"2327-6916","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2014-3018","title":"The 1964 Great Alaska Earthquake and tsunamis: a modern perspective and enduring legacies","docAbstract":"The magnitude 9.2 Great Alaska Earthquake that struck south-central Alaska at 5:36 p.m. on Friday, March 27, 1964, is the largest recorded earthquake in U.S. history and the second-largest earthquake recorded with modern instruments. The earthquake was felt throughout most of mainland Alaska, as far west as Dutch Harbor in the Aleutian Islands some 480 miles away, and at Seattle, Washington, more than 1,200 miles to the southeast of the fault rupture, where the Space Needle swayed perceptibly. The earthquake caused rivers, lakes, and other waterways to slosh as far away as the coasts of Texas and Louisiana. Water-level recorders in 47 states—the entire Nation except for Connecticut, Delaware, and Rhode Island— registered the earthquake. It was so large that it caused the entire Earth to ring like a bell: vibrations that were among the first of their kind ever recorded by modern instruments. The Great Alaska Earthquake spawned thousands of lesser aftershocks and hundreds of damaging landslides, submarine slumps, and other ground failures. Alaska’s largest city, Anchorage, located west of the fault rupture, sustained heavy property damage. Tsunamis produced by the earthquake resulted in deaths and damage as far away as Oregon and California. Altogether the earthquake and subsequent tsunamis caused 129 fatalities and an estimated $2.3 billion in property losses (in 2013 dollars). Most of the population of Alaska and its major transportation routes, ports, and infrastructure lie near the eastern segment of the Aleutian Trench that ruptured in the 1964 earthquake. Although the Great Alaska Earthquake was tragic because of the loss of life and property, it provided a wealth of data about subductionzone earthquakes and the hazards they pose. The leap in scientific understanding that followed the 1964 earthquake has led to major breakthroughs in earth science research worldwide over the past half century. This fact sheet commemorates Great Alaska Earthquake and examines the advances in knowledge and technology that have helped to improve earthquake preparation and response both in Alaska and around the world.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/fs20143018","usgsCitation":"Brocher, T.M., Filson, J.R., Fuis, G.S., Haeussler, P.J., Holzer, T.L., Plafker, G., and Blair, J., 2014, The 1964 Great Alaska Earthquake and tsunamis: a modern perspective and enduring legacies: U.S. Geological Survey Fact Sheet 2014-3018, 6 p., https://doi.org/10.3133/fs20143018.","productDescription":"6 p.","ipdsId":"IP-053855","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":283366,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/fs20143018.jpg"},{"id":283364,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/fs/2014/3018/"},{"id":283365,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/fs/2014/3018/pdf/fs2014-3018.pdf"}],"country":"United States","state":"Alaska","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -158.2,55.2 ], [ -158.2,64.1 ], [ -137.2,64.1 ], [ -137.2,55.2 ], [ -158.2,55.2 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53517066e4b05569d805a3e1","contributors":{"authors":[{"text":"Brocher, Thomas M. 0000-0002-9740-839X brocher@usgs.gov","orcid":"https://orcid.org/0000-0002-9740-839X","contributorId":262,"corporation":false,"usgs":true,"family":"Brocher","given":"Thomas","email":"brocher@usgs.gov","middleInitial":"M.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":490788,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Filson, John R. 0000-0001-8840-6301 jfilson@usgs.gov","orcid":"https://orcid.org/0000-0001-8840-6301","contributorId":5078,"corporation":false,"usgs":true,"family":"Filson","given":"John","email":"jfilson@usgs.gov","middleInitial":"R.","affiliations":[{"id":234,"text":"Earthquake Hazards Program","active":true,"usgs":true}],"preferred":true,"id":490793,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fuis, Gary S. 0000-0002-3078-1544 fuis@usgs.gov","orcid":"https://orcid.org/0000-0002-3078-1544","contributorId":2639,"corporation":false,"usgs":true,"family":"Fuis","given":"Gary","email":"fuis@usgs.gov","middleInitial":"S.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":490790,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Haeussler, Peter J. 0000-0002-1503-6247 pheuslr@usgs.gov","orcid":"https://orcid.org/0000-0002-1503-6247","contributorId":503,"corporation":false,"usgs":true,"family":"Haeussler","given":"Peter","email":"pheuslr@usgs.gov","middleInitial":"J.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":119,"text":"Alaska Science Center Geology Minerals","active":true,"usgs":true}],"preferred":true,"id":490789,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Holzer, Thomas L. tholzer@usgs.gov","contributorId":2829,"corporation":false,"usgs":true,"family":"Holzer","given":"Thomas","email":"tholzer@usgs.gov","middleInitial":"L.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":490791,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Plafker, George","contributorId":3920,"corporation":false,"usgs":false,"family":"Plafker","given":"George","email":"","affiliations":[],"preferred":false,"id":490792,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Blair, J. Luke","contributorId":102573,"corporation":false,"usgs":true,"family":"Blair","given":"J. Luke","affiliations":[],"preferred":false,"id":490794,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70157144,"text":"70157144 - 2014 - A deglacial and Holocene record of climate variability in south-central Alaska from stable oxygen isotopes and plant macrofossils in peat","interactions":[],"lastModifiedDate":"2015-09-30T11:21:18","indexId":"70157144","displayToPublicDate":"2014-03-01T12:30:00","publicationYear":"2014","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3219,"text":"Quaternary Science Reviews","active":true,"publicationSubtype":{"id":10}},"title":"A deglacial and Holocene record of climate variability in south-central Alaska from stable oxygen isotopes and plant macrofossils in peat","docAbstract":"<p><span>We used stable oxygen isotopes derived from bulk peat (&delta;</span><sup>18</sup><span>O</span><sub>TOM</sub><span>), in conjunction with plant macrofossils and previously published carbon accumulation records, in a &sim;14,500&nbsp;cal yr BP peat core (HT Fen) from the Kenai lowlands in south-central Alaska to reconstruct the climate history of the area. We find that patterns are broadly consistent with those from lacustrine records across the region, and agree with the interpretation that major shifts in &delta;</span><sup>18</sup><span>O</span><sub>TOM</sub><span>&nbsp;values indicate changes in strength and position of the Aleutian Low (AL), a semi-permanent low-pressure cell that delivers winter moisture to the region. We find decreased strength or a more westerly position of the AL (relatively higher &delta;</span><sup>18</sup><span>O</span><sub>TOM</sub><span>&nbsp;values) during the B&oslash;lling-Aller&oslash;d, Holocene Thermal Maximum (HTM), and late Holocene, which also correspond to warmer climate regimes. These intervals coincide with greater peat preservation and enhanced carbon (C) accumulation rates at the HT Fen and with peatland expansion across Alaska. The HTM in particular may have experienced greater summer precipitation as a result of an enhanced Pacific subtropical high, a pattern consistent with modern &delta;</span><sup>18</sup><span>O values for summer precipitation. The combined warm summer temperatures and greater summer precipitation helped promote the observed rapid peat accumulation. A strengthened AL (relatively lower &delta;</span><sup>18</sup><span>O</span><sub>TOM</sub><span>&nbsp;values) is most evident during the Younger Dryas, Neoglaciation, and the Little Ice Age, consistent with lower peat preservation and C accumulation at the HT Fen, suggesting less precipitation reaches the leeward side of the Kenai Mountains during periods of enhanced AL strength. The peatlands on the Kenai Peninsula thrive when the AL is weak and the contribution of summer precipitation is higher, highlighting the importance of precipitation seasonality in promoting peat accumulation. This study demonstrates that &delta;</span><sup>18</sup><span>O</span><sub>TOM</sub><span>&nbsp;values in peat can be applied toward understand large-scale shifts in atmospheric circulation over millennial timescales.</span></p>","language":"English","publisher":"Pergamon Press","publisherLocation":"Kidlington, United Kingdom","doi":"10.1016/j.quascirev.2013.12.025","usgsCitation":"Jones, M.C., Wooller, M., and Peteet, D.M., 2014, A deglacial and Holocene record of climate variability in south-central Alaska from stable oxygen isotopes and plant macrofossils in peat: Quaternary Science Reviews, v. 87, p. 1-11, https://doi.org/10.1016/j.quascirev.2013.12.025.","productDescription":"11 p.","startPage":"1","endPage":"11","numberOfPages":"11","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-052895","costCenters":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"links":[{"id":473132,"rank":0,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/2060/20140017637","text":"External Repository"},{"id":309370,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Alaska","volume":"87","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"560d07ace4b058f706e542f6","contributors":{"authors":[{"text":"Jones, Miriam C. 0000-0002-6650-7619 miriamjones@usgs.gov","orcid":"https://orcid.org/0000-0002-6650-7619","contributorId":4056,"corporation":false,"usgs":true,"family":"Jones","given":"Miriam","email":"miriamjones@usgs.gov","middleInitial":"C.","affiliations":[{"id":243,"text":"Eastern Geology and Paleoclimate Science Center","active":true,"usgs":true}],"preferred":true,"id":571853,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wooller, Matthew J.","contributorId":24213,"corporation":false,"usgs":true,"family":"Wooller","given":"Matthew J.","affiliations":[],"preferred":false,"id":571854,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Peteet, Dorothy M. 0000-0003-3029-7506","orcid":"https://orcid.org/0000-0003-3029-7506","contributorId":147523,"corporation":false,"usgs":false,"family":"Peteet","given":"Dorothy","email":"","middleInitial":"M.","affiliations":[{"id":16858,"text":"Goddard Institute","active":true,"usgs":false}],"preferred":false,"id":571855,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70115922,"text":"70115922 - 2014 - Distribution and transmission of the highly pathogenic parasite <i>Ichthyophonus</i> in marine fishes of Alaska","interactions":[],"lastModifiedDate":"2014-09-23T11:17:37","indexId":"70115922","displayToPublicDate":"2014-03-01T11:13:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":3,"text":"Organization Series"},"title":"Distribution and transmission of the highly pathogenic parasite <i>Ichthyophonus</i> in marine fishes of Alaska","docAbstract":"A combination of field surveys, molecular typing, and laboratory experiments were used to improve our understanding of the distribution and transmission mechanisms of fish parasites in the genus <i>Ichthyophonus</i>. <i>Ichthyophonus</i> spp. infections were detected from the Bering Sea to the coast of Oregon in 10 of 13 host species surveyed. Sequences of rDNA extracted from these isolates indicate that a ubiquitous <i>Ichthyophonus</i> type occurs in the NE Pacific Ocean and Bering Sea and accounts for nearly all the infections encountered. Among NE Pacific isolates, only parasites from yellowtail rockfish and Puget Sound rockfish varied at the DNA locus examined. These data suggest that a single source population of these parasites is available to fishes in diverse niches across a wide geographic range. A direct life cycle within a common forage species could account for the relatively low parasite diversity we encountered. In the laboratory we tested the hypothesis that waterborne transmission occurs among Pacific herring, a common NE Pacific forage species. No horizontal transmission occurred during a four-month cohabitation experiment involving infected herring and conspecific sentinels. The complete life cycle of <i>Ichthyophonus</i> spp. is not known, but these results suggest that system-wide processes maintain a relatively homogenous parasite population.","language":"English","publisher":"North Pacific Research Board","usgsCitation":"Gregg, J., Grady, C.A., Thompson, R.L., Purcell, M., Friedman, C., and Hershberger, P., 2014, Distribution and transmission of the highly pathogenic parasite <i>Ichthyophonus</i> in marine fishes of Alaska, 46 p.","productDescription":"46 p.","numberOfPages":"46","ipdsId":"IP-055829","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":294314,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5422bb23e4b08312ac7cf008","contributors":{"authors":[{"text":"Gregg, Jacob L.","contributorId":30883,"corporation":false,"usgs":true,"family":"Gregg","given":"Jacob L.","affiliations":[],"preferred":false,"id":495692,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Grady, Courtney A.","contributorId":8352,"corporation":false,"usgs":true,"family":"Grady","given":"Courtney","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":495690,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thompson, Rachel L. 0000-0001-6901-4361 rlthompson@usgs.gov","orcid":"https://orcid.org/0000-0001-6901-4361","contributorId":5707,"corporation":false,"usgs":true,"family":"Thompson","given":"Rachel","email":"rlthompson@usgs.gov","middleInitial":"L.","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":true,"id":495689,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Purcell, Maureen K.","contributorId":104214,"corporation":false,"usgs":true,"family":"Purcell","given":"Maureen K.","affiliations":[],"preferred":false,"id":495693,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Friedman, Carolyn S.","contributorId":13890,"corporation":false,"usgs":true,"family":"Friedman","given":"Carolyn S.","affiliations":[],"preferred":false,"id":495691,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hershberger, Paul K. phershberger@usgs.gov","contributorId":1945,"corporation":false,"usgs":true,"family":"Hershberger","given":"Paul K.","email":"phershberger@usgs.gov","affiliations":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"preferred":false,"id":495688,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70048043,"text":"70048043 - 2014 - InSAR imaging of Aleutian volcanoes: Monitoring a volcanic arc from space","interactions":[],"lastModifiedDate":"2019-03-11T14:07:12","indexId":"70048043","displayToPublicDate":"2014-03-01T10:40:00","publicationYear":"2014","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":15,"text":"Monograph"},"title":"InSAR imaging of Aleutian volcanoes: Monitoring a volcanic arc from space","docAbstract":"No abstract available.","language":"English","publisher":"Springer","isbn":"9783642003479","usgsCitation":"Lu, Z., and Dzurisin, D., 2014, InSAR imaging of Aleutian volcanoes: Monitoring a volcanic arc from space, xxix, 390 p.","productDescription":"xxix, 390 p.","numberOfPages":"419","ipdsId":"IP-051348","costCenters":[{"id":615,"text":"Volcano Hazards Program","active":true,"usgs":true},{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"links":[{"id":285136,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":285135,"type":{"id":15,"text":"Index Page"},"url":"https://www.springer.com/earth+sciences+and+geography/geophysics/book/978-3-642-00347-9"}],"country":"United States","state":"Alaska","otherGeospatial":"Aleutian Volcanoes","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -179.26,50.17 ], [ -179.26,57.81 ], [ -155.75,57.81 ], [ -155.75,50.17 ], [ -179.26,50.17 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5351704fe4b05569d805a2e7","contributors":{"authors":[{"text":"Lu, Zhong 0000-0001-9181-1818 lu@usgs.gov","orcid":"https://orcid.org/0000-0001-9181-1818","contributorId":901,"corporation":false,"usgs":true,"family":"Lu","given":"Zhong","email":"lu@usgs.gov","affiliations":[],"preferred":true,"id":483656,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dzurisin, Daniel 0000-0002-0138-5067 dzurisin@usgs.gov","orcid":"https://orcid.org/0000-0002-0138-5067","contributorId":538,"corporation":false,"usgs":true,"family":"Dzurisin","given":"Daniel","email":"dzurisin@usgs.gov","affiliations":[{"id":617,"text":"Volcano Science Center","active":true,"usgs":true}],"preferred":true,"id":483655,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70093901,"text":"ofr20141030 - 2014 - 2013 update on sea otter studies to assess recovery from the 1989 <i>Exxon Valdez</i> oil spill, Prince William Sound, Alaska","interactions":[],"lastModifiedDate":"2018-06-19T19:38:53","indexId":"ofr20141030","displayToPublicDate":"2014-02-28T09:32:00","publicationYear":"2014","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":5,"text":"USGS Numbered Series"},"seriesTitle":{"id":330,"text":"Open-File Report","code":"OFR","onlineIssn":"2331-1258","printIssn":"0196-1497","active":true,"publicationSubtype":{"id":5}},"seriesNumber":"2014-1030","title":"2013 update on sea otter studies to assess recovery from the 1989 <i>Exxon Valdez</i> oil spill, Prince William Sound, Alaska","docAbstract":"On March 24, 1989, the tanker vessel Exxon Valdez ran aground in Prince William Sound, Alaska, spilling an estimated 42 million liters of Prudhoe Bay crude oil. Oil spread in a southwesterly direction and was deposited on shores and waters in western Prince William Sound (WPWS). The sea otter (Enhydra lutris) was one of more than 20 nearshore species considered to have been injured by the spill. Since 1989, the U.S. Geological Survey has led a research program to evaluate effects of the spill on sea otters and assess progress toward recovery, as defined by demographic and biochemical indicators. Here, we provide an update on the status of sea otter populations in WPWS, presenting findings through 2013. To assess recovery based on demographic indicators, we used aerial surveys to estimate abundance and annual collections of sea otter carcasses to evaluate patterns in ages-at-death. To assess recovery based on biochemical indicators, we quantified transcription rates for a suite of genes selected as potential indicators of oil exposure in sea otters based on laboratory studies of a related species, the mink (Mustela vison). In our most recent assessment of sea otter recovery, which incorporated results from a subset of studies through 2009, we concluded that recovery of sea otters in WPWS was underway. This conclusion was based on increasing abundance throughout WPWS, including increasing numbers at northern Knight Island, an area that was heavily oiled in 1989 and where the local sea otter population had previously shown protracted injury and lack of recovery. However, we did not conclude that the WPWS sea otter population had fully recovered, due to indications of continuing reduced survival and exposure to lingering oil in sea otters at Knight Island, at least through 2009. Based on data available through 2013, we now conclude that the status of sea otters—at all spatial scales within WPWS—is consistent with the designation of recovery from the spill as defined by the Exxon Valdez Oil Spill Trustee Council. The support for this conclusion is based primarily on demographic data, including (1) a return to estimated pre-spill abundance of sea otters at northern Knight Island, and (2) a return to pre-spill mortality patterns. Gene transcription rates in 2012 were similar in sea otters from oiled, moderately oiled and unoiled areas, suggesting abatement of exposure effects in 2012. However, because 2012 gene transcription rates generally were low for sea otters from all areas relative to 2008, we cannot fully interpret these observations without data from a wider panel of genes. This slight uncertainty with respect to the data from the biochemical indicator is outweighed by the strength of the data for the demographic indicators. The return to pre-spill numbers and mortality patterns suggests a gradual dissipation of lingering oil over the past two decades, to the point where continuing exposure is no longer of biological significance to the WPWS sea otter population.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/ofr20141030","issn":"2331-1258","usgsCitation":"Ballachey, B.E., Monson, D., Esslinger, G.G., Kloecker, K.A., Bodkin, J.L., Bowen, L., and Miles, A.K., 2014, 2013 update on sea otter studies to assess recovery from the 1989 <i>Exxon Valdez</i> oil spill, Prince William Sound, Alaska: U.S. Geological Survey Open-File Report 2014-1030, iv, 40 p., https://doi.org/10.3133/ofr20141030.","productDescription":"iv, 40 p.","numberOfPages":"48","onlineOnly":"Y","ipdsId":"IP-051870","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":282939,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/ofr20141030.jpg"},{"id":282938,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/of/2014/1030/pdf/ofr2014-1030.pdf"},{"id":282937,"type":{"id":15,"text":"Index Page"},"url":"https://pubs.usgs.gov/of/2014/1030/"}],"country":"United States","state":"Alaska","otherGeospatial":"Prince William Sound","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -148.5,60.0 ], [ -148.5,61.0 ], [ -146.5,61.0 ], [ -146.5,60.0 ], [ -148.5,60.0 ] ] ] } } ] }","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"53cd4928e4b0b290850eeec9","contributors":{"authors":[{"text":"Ballachey, Brenda E. 0000-0003-1855-9171 bballachey@usgs.gov","orcid":"https://orcid.org/0000-0003-1855-9171","contributorId":2966,"corporation":false,"usgs":true,"family":"Ballachey","given":"Brenda","email":"bballachey@usgs.gov","middleInitial":"E.","affiliations":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true},{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":490272,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Monson, Daniel H. 0000-0002-4593-5673 dmonson@usgs.gov","orcid":"https://orcid.org/0000-0002-4593-5673","contributorId":140480,"corporation":false,"usgs":true,"family":"Monson","given":"Daniel H.","email":"dmonson@usgs.gov","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":false,"id":490273,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Esslinger, George G. 0000-0002-3459-0083 gesslinger@usgs.gov","orcid":"https://orcid.org/0000-0002-3459-0083","contributorId":131009,"corporation":false,"usgs":true,"family":"Esslinger","given":"George","email":"gesslinger@usgs.gov","middleInitial":"G.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":490274,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kloecker, Kimberly A. 0000-0002-2461-968X kkloecker@usgs.gov","orcid":"https://orcid.org/0000-0002-2461-968X","contributorId":3442,"corporation":false,"usgs":true,"family":"Kloecker","given":"Kimberly","email":"kkloecker@usgs.gov","middleInitial":"A.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true}],"preferred":true,"id":490276,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bodkin, James L. 0000-0003-1641-4438 jbodkin@usgs.gov","orcid":"https://orcid.org/0000-0003-1641-4438","contributorId":748,"corporation":false,"usgs":true,"family":"Bodkin","given":"James","email":"jbodkin@usgs.gov","middleInitial":"L.","affiliations":[{"id":116,"text":"Alaska Science Center Biology MFEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":490277,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bowen, Lizabeth 0000-0001-9115-4336 lbowen@usgs.gov","orcid":"https://orcid.org/0000-0001-9115-4336","contributorId":4539,"corporation":false,"usgs":true,"family":"Bowen","given":"Lizabeth","email":"lbowen@usgs.gov","affiliations":[{"id":651,"text":"Western Ecological Research Center","active":true,"usgs":true}],"preferred":true,"id":490275,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Miles, A. 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