{"pageNumber":"1045","pageRowStart":"26100","pageSize":"25","recordCount":46735,"records":[{"id":70026279,"text":"70026279 - 2003 - Mapping the seabed and habitats in National Marine Sanctuaries - Examples from the East, Gulf and West Coasts","interactions":[],"lastModifiedDate":"2018-01-30T19:00:07","indexId":"70026279","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2678,"text":"Marine Technology Society Journal","active":true,"publicationSubtype":{"id":10}},"title":"Mapping the seabed and habitats in National Marine Sanctuaries - Examples from the East, Gulf and West Coasts","docAbstract":"<p><span>The National Marine Sanctuary System requires seabed and habitat maps to serve as a basis for managing sanctuary resources and for conducting research. NOAA, the agency that manages the sanctuaries, and the USGS have conducted mapping projects in three sanctuaries (Stellwagen Bank NMS, Flower Garden Banks NMS, and Channel Islands NMS) with an emphasis on collaboration of geologists and biologists from the two agencies and from academic institutions. Mapping of seabed habitats is a developing field that requires the integration of geologic and biologic studies and the use of swath imaging techniques such as multibeam and sidescan sonar. Major products of swath mapping are shaded-relief topographic imagery which shows seabed features in great detail, and backscatter imagery which provides an indication of the types of materials that constitute the seabed. Sea floor images provide an excellent basis for conducting the groundtruthing studies (using video, photo, and sampling techniques) that are required to collect the data necessary for making meaningful interpretative maps of the seabed. The compilation of interpretive maps showing seabed environments and habitats also requires the development of a sea floor classification system that will be a basis for comparing, managing, and researching characteristic areas of the seabed. Seabed maps of the sanctuaries are proving useful for management and research decisions that address commercial and recreational fishing, habitat disturbance, engineering projects, tourism, and cultural resources.</span></p>","language":"English","publisher":"Marine Technology Society","doi":"10.4031/002533203787537465","usgsCitation":"Valentine, P.C., Cochrane, G.R., and Scanlon, K.M., 2003, Mapping the seabed and habitats in National Marine Sanctuaries - Examples from the East, Gulf and West Coasts: Marine Technology Society Journal, v. 37, no. 1, p. 10-17, https://doi.org/10.4031/002533203787537465.","productDescription":"8 p.","startPage":"10","endPage":"17","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":478487,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.4031/002533203787537465","text":"Publisher Index Page"},{"id":233964,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"37","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5088e4b0c8380cd6b752","contributors":{"authors":[{"text":"Valentine, Page C. 0000-0002-0485-6266 pvalentine@usgs.gov","orcid":"https://orcid.org/0000-0002-0485-6266","contributorId":1947,"corporation":false,"usgs":true,"family":"Valentine","given":"Page","email":"pvalentine@usgs.gov","middleInitial":"C.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":408843,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cochrane, Guy R. 0000-0002-8094-4583 gcochrane@usgs.gov","orcid":"https://orcid.org/0000-0002-8094-4583","contributorId":2870,"corporation":false,"usgs":true,"family":"Cochrane","given":"Guy","email":"gcochrane@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":408845,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Scanlon, Kathryn M.","contributorId":6816,"corporation":false,"usgs":true,"family":"Scanlon","given":"Kathryn","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":408844,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":1013575,"text":"1013575 - 2003 - Assessing chick growth from a single visit to a seabird colony","interactions":[],"lastModifiedDate":"2017-11-18T09:33:09","indexId":"1013575","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2675,"text":"Marine Ornithology: Journal of Seabird Research and Conservation","onlineIssn":"2074-1235","printIssn":"1018-3337","active":true,"publicationSubtype":{"id":10}},"title":"Assessing chick growth from a single visit to a seabird colony","docAbstract":"We tested an approach to the collection of seabird chick growth data that utilizes a one-time sampling of chick measurements obtained during a single visit to a seabird colony. We assessed the development of Black-legged Kittiwake Rissa tridactyla chicks from a sample of measurements made on a single day during six years and compared these results to linear growth rates (g/day), determined from repeated measurements of the same chicks. We used two one-time sampling methods to obtain indices of chick-condition, 1) overall body-size (wing, head-plus-bill, tarsus) vs. mass, and 2) wing vs. mass; both were consistent with repeated measurements in identifying annual variations in chick growth. Thus, we suggest that chick-condition indices obtained from measurements collected on a single visit to a seabird colony are a useful tool for monitoring chick growth, especially at colonies where multiple visits and/or repeated measurements of individual chicks are impractical.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Ornithology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Benson, J., Suryan, R., and Piatt, J.F., 2003, Assessing chick growth from a single visit to a seabird colony: Marine Ornithology: Journal of Seabird Research and Conservation, v. 31, no. 2, p. 181-184.","productDescription":"pp. 181-184","startPage":"181","endPage":"184","numberOfPages":"4","costCenters":[{"id":106,"text":"Alaska Biological Science Center","active":false,"usgs":true}],"links":[{"id":129485,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":11262,"rank":300,"type":{"id":11,"text":"Document"},"url":"https://www.marineornithology.org/PDF/31_2/31_2_181-184.pdf","linkFileType":{"id":1,"text":"pdf"}}],"volume":"31","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4abbe4b07f02db672ab7","contributors":{"authors":[{"text":"Benson, J.","contributorId":57793,"corporation":false,"usgs":true,"family":"Benson","given":"J.","email":"","affiliations":[],"preferred":false,"id":318781,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Suryan, R.M.","contributorId":52919,"corporation":false,"usgs":true,"family":"Suryan","given":"R.M.","email":"","affiliations":[],"preferred":false,"id":318780,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"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":318782,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025555,"text":"70025555 - 2003 - Detonation charge size versus coda magnitude relations in California and Nevada","interactions":[],"lastModifiedDate":"2021-07-27T12:07:49.508285","indexId":"70025555","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Detonation charge size versus coda magnitude relations in California and Nevada","docAbstract":"Magnitude-charge size relations have important uses in forensic seismology and are used in Comprehensive Nuclear-Test-Ban Treaty monitoring. I derive empirical magnitude versus detonation-charge-size relationships for 322 detonations located by permanent seismic networks in California and Nevada. These detonations, used in 41 different seismic refraction or network calibration experiments, ranged in yield (charge size) between 25 and 106 kg; coda magnitudes reported for them ranged from 0.5 to 3.9. Almost all represent simultaneous (single-fired) detonations of one or more boreholes. Repeated detonations at the same shotpoint suggest that the reported coda magnitudes are repeatable, on average, to within 0.1 magnitude unit. An empirical linear regression for these 322 detonations yields M = 0.31 + 0.50 log10(weight [kg]). The detonations compiled here demonstrate that the Khalturin et al. (1998) relationship, developed mainly for data from large chemical explosions but which fits data from nuclear blasts, can be used to estimate the minimum charge size for coda magnitudes between 0.5 and 3.9. Drilling, loading, and shooting logs indicate that the explosive specification, loading method, and effectiveness of tamp are the primary factors determining the efficiency of a detonation. These records indicate that locating a detonation within the water table is neither a necessary nor sufficient condition for an efficient shot.","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0120020185","issn":"00371106","usgsCitation":"Brocher, T., 2003, Detonation charge size versus coda magnitude relations in California and Nevada: Bulletin of the Seismological Society of America, v. 93, no. 5, p. 2089-2105, https://doi.org/10.1785/0120020185.","productDescription":"17 p.","startPage":"2089","endPage":"2105","costCenters":[],"links":[{"id":387414,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"California, 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 \"}}]}","volume":"93","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059fffbe4b0c8380cd4f4f2","contributors":{"authors":[{"text":"Brocher, T.M. 0000-0002-9740-839X","orcid":"https://orcid.org/0000-0002-9740-839X","contributorId":69994,"corporation":false,"usgs":true,"family":"Brocher","given":"T.M.","affiliations":[],"preferred":false,"id":405629,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70025293,"text":"70025293 - 2003 - Polybaric evolution of phonolite, trachyte, and rhyolite volcanoes in eastern Marie Byrd Land, Antarctica: Controls on peralkalinity and silica saturation","interactions":[],"lastModifiedDate":"2021-08-06T21:10:28.185089","indexId":"70025293","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2020,"text":"International Geology Review","active":true,"publicationSubtype":{"id":10}},"title":"Polybaric evolution of phonolite, trachyte, and rhyolite volcanoes in eastern Marie Byrd Land, Antarctica: Controls on peralkalinity and silica saturation","docAbstract":"<p>In<span>&nbsp;the&nbsp;</span>Marie<span>&nbsp;</span>Byrd<span>&nbsp;</span>Land<span>&nbsp;volcanic province, peralkaline and metaluminous trachytes, phonolites, and rhyolites occur&nbsp;</span>in<span>&nbsp;18 large shield&nbsp;</span>volcanoes<span>&nbsp;that are closely associated&nbsp;</span>in<span>&nbsp;time and space. They are arrayed radially across an 800 km wide structural dome, with the oldest at the crest and the youngest around the flanks. Several lines of evidence suggest that these rocks evolved via opensystem,&nbsp;</span>polybaric<span>&nbsp;fractionation. We have used mass balance modeling of major elements together with trace-element data and mineral chemistry to help explain the&nbsp;</span>evolution<span>&nbsp;of this diverse suite of felsic rocks, which appear to have been generated coevally&nbsp;</span>in<span>&nbsp;isolated magma chambers, and erupted close to each other&nbsp;</span>in<span>&nbsp;patterns related to tectonic uplift and extension within the West Antarctic rift system. Isotopic and trace-element data indicate that this occurred with only minimal crustal contamination. We focus on&nbsp;</span>volcanoes<span>&nbsp;of the Executive Committee Range and Mount Murphy, where we find good representation of basalts and felsic rocks within a small area. Our results suggest that the felsic rocks were derived from basaltic magmas that differentiated at multiple levels during their passage to the surface: first to ferrogabbroic compositions near the base of the lithosphere, then to intermediate compositions near the base of the crust, and finally to felsic compositions&nbsp;</span>in<span>&nbsp;mid- to upper crustal reservoirs. The high-pressure history has been largely masked by low-pressure processes. The best indications of a high-pressure history are the mineral phases&nbsp;</span>in<span>&nbsp;cumulate nodules and their correlation with modeling results, with REE anomalies, and with the composition of an unusual gabbroic intrusion.&nbsp;</span>Silica<span>&nbsp;</span>saturation<span>&nbsp;characteristics are believed to have originated&nbsp;</span>in<span>&nbsp;magma chambers near the base of the crust, via fractionation of variable proportions of kaersutite and plagioclase. Development of&nbsp;</span>peralkalinity<span>&nbsp;</span>in<span>&nbsp;felsic rocks took place&nbsp;</span>in<span>&nbsp;upper crustal reservoirs by fractionating a high ratio of plagioclase to clinopyroxene under conditions of low pH</span><sub>2</sub><span>O. With increasing pH</span><sub>2</sub><span>O, the ratio plagioclase/clinopyroxene&nbsp;</span>in<span>&nbsp;the fractionated assemblage decreases and metaluminous liquids resulted. Crustal contamination seems to have had a role&nbsp;</span>in<span>&nbsp;suppressing&nbsp;</span>peralkalinity<span>, and was probably a factor&nbsp;</span>in<span>&nbsp;the origin of high-</span>silica<span>&nbsp;metaluminous&nbsp;</span>rhyolite<span>, but metaluminous rocks are uncommon. The volume and diversity of felsic rocks were probably enhanced by the structure of the lithosphere, the persistence of plume activity, and the immobility of the Antarctic plate. Mechanical boundaries at the base of the lithosphere and crust, and within the crust, appear to have acted as filters, trapping magmas at multiple levels, and prolonging the fractionation process. Final volumes would have been further enhanced by repeated refluxing of the same magma chambers, controlled by plume activity and plate immobility.</span></p>","language":"English","publisher":"Taylor & Francis","doi":"10.2747/0020-6814.45.12.1055","issn":"00206814","usgsCitation":"LeMasurier, W., Futa, K., Hole, M., and Kawachi, Y., 2003, Polybaric evolution of phonolite, trachyte, and rhyolite volcanoes in eastern Marie Byrd Land, Antarctica: Controls on peralkalinity and silica saturation: International Geology Review, v. 45, no. 12, p. 1055-1099, https://doi.org/10.2747/0020-6814.45.12.1055.","productDescription":"45 p.","startPage":"1055","endPage":"1099","costCenters":[],"links":[{"id":387742,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Antarctica","volume":"45","issue":"12","noUsgsAuthors":false,"publicationDate":"2010-07-14","publicationStatus":"PW","scienceBaseUri":"505a7ce6e4b0c8380cd79c3d","contributors":{"authors":[{"text":"LeMasurier, W.E.","contributorId":7006,"corporation":false,"usgs":true,"family":"LeMasurier","given":"W.E.","email":"","affiliations":[],"preferred":false,"id":404647,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Futa, K.","contributorId":26435,"corporation":false,"usgs":true,"family":"Futa","given":"K.","affiliations":[],"preferred":false,"id":404648,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hole, M.","contributorId":80876,"corporation":false,"usgs":true,"family":"Hole","given":"M.","email":"","affiliations":[],"preferred":false,"id":404650,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kawachi, Y.","contributorId":45875,"corporation":false,"usgs":true,"family":"Kawachi","given":"Y.","email":"","affiliations":[],"preferred":false,"id":404649,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70026354,"text":"70026354 - 2003 - The open black box: The role of the end-user in GIS integration","interactions":[],"lastModifiedDate":"2012-03-12T17:20:37","indexId":"70026354","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1165,"text":"Canadian Geographer","active":true,"publicationSubtype":{"id":10}},"title":"The open black box: The role of the end-user in GIS integration","docAbstract":"Formalist theories of knowledge that underpin GIS scholarship on integration neglect the importance and creativity of end-users in knowledge construction. This has practical consequences for the success of large distributed databases that contribute to spatial-data infrastructures. Spatial-data infrastructures depend on participation at local levels, such as counties and watersheds, and they must be developed to support feedback from local users. Looking carefully at the work of scientists in a watershed in Puget Sound, Washington, USA during the salmon crisis reveals that the work of these end-users articulates different worlds of knowledge. This view of the user is consonant with recent work in science and technology studies and research into computer-supported cooperative work. GIS theory will be enhanced when it makes room for these users and supports their practical work. ?? / Canadian Association of Geographers.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Canadian Geographer","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/1541-0064.02e13","issn":"00083658","usgsCitation":"Poore, B., 2003, The open black box: The role of the end-user in GIS integration: Canadian Geographer, v. 47, no. 1, p. 62-74, https://doi.org/10.1111/1541-0064.02e13.","startPage":"62","endPage":"74","numberOfPages":"13","costCenters":[],"links":[{"id":208350,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/1541-0064.02e13"},{"id":234044,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"47","issue":"1","noUsgsAuthors":false,"publicationDate":"2003-05-20","publicationStatus":"PW","scienceBaseUri":"505bae56e4b08c986b32400a","contributors":{"authors":[{"text":"Poore, B.S.","contributorId":102249,"corporation":false,"usgs":true,"family":"Poore","given":"B.S.","email":"","affiliations":[],"preferred":false,"id":409140,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70025059,"text":"70025059 - 2003 - Imaging spectroscopy: Earth and planetary remote sensing with the USGS Tetracorder and expert systems","interactions":[],"lastModifiedDate":"2018-05-03T16:20:38","indexId":"70025059","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2317,"text":"Journal of Geophysical Research E: Planets","active":true,"publicationSubtype":{"id":10}},"title":"Imaging spectroscopy: Earth and planetary remote sensing with the USGS Tetracorder and expert systems","docAbstract":"<p><span>Imaging spectroscopy is a tool that can be used to spectrally identify and spatially map materials based on their specific chemical bonds. Spectroscopic analysis requires significantly more sophistication than has been employed in conventional broadband remote sensing analysis. We describe a new system that is effective at material identification and mapping: a set of algorithms within an expert system decision‐making framework that we call Tetracorder. The expertise in the system has been derived from scientific knowledge of spectral identification. The expert system rules are implemented in a decision tree where multiple algorithms are applied to spectral analysis, additional expert rules and algorithms can be applied based on initial results, and more decisions are made until spectral analysis is complete. Because certain spectral features are indicative of specific chemical bonds in materials, the system can accurately identify and map those materials. In this paper we describe the framework of the decision making process used for spectral identification, describe specific spectral feature analysis algorithms, and give examples of what analyses and types of maps are possible with imaging spectroscopy data. We also present the expert system rules that describe which diagnostic spectral features are used in the decision making process for a set of spectra of minerals and other common materials. We demonstrate the applications of Tetracorder to identify and map surface minerals, to detect sources of acid rock drainage, and to map vegetation species, ice, melting snow, water, and water pollution, all with one set of expert system rules. Mineral mapping can aid in geologic mapping and fault detection and can provide a better understanding of weathering, mineralization, hydrothermal alteration, and other geologic processes. Environmental site assessment, such as mapping source areas of acid mine drainage, has resulted in the acceleration of site cleanup, saving millions of dollars and years in cleanup time. Imaging spectroscopy data and Tetracorder analysis can be used to study both terrestrial and planetary science problems. Imaging spectroscopy can be used to probe planetary systems, including their atmospheres, oceans, and land surfaces.</span></p>","language":"English","publisher":"AGU","doi":"10.1029/2002JE001847","issn":"01480227","usgsCitation":"Clark, R.N., Swayze, G.A., Livo, K., Kokaly, R.F., Sutley, S.J., Dalton, J.B., McDougal, R.R., and Gent, C.A., 2003, Imaging spectroscopy: Earth and planetary remote sensing with the USGS Tetracorder and expert systems: Journal of Geophysical Research E: Planets, v. 108, no. 12, p. 1-44, https://doi.org/10.1029/2002JE001847.","productDescription":"Article 5; 44 p.","startPage":"1","endPage":"44","costCenters":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true}],"links":[{"id":236133,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"108","issue":"12","noUsgsAuthors":false,"publicationDate":"2003-12-06","publicationStatus":"PW","scienceBaseUri":"505a3884e4b0c8380cd615cf","contributors":{"authors":[{"text":"Clark, Roger N. 0000-0002-7021-1220 rclark@usgs.gov","orcid":"https://orcid.org/0000-0002-7021-1220","contributorId":515,"corporation":false,"usgs":true,"family":"Clark","given":"Roger","email":"rclark@usgs.gov","middleInitial":"N.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":403639,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Swayze, Gregg A. 0000-0002-1814-7823 gswayze@usgs.gov","orcid":"https://orcid.org/0000-0002-1814-7823","contributorId":518,"corporation":false,"usgs":true,"family":"Swayze","given":"Gregg","email":"gswayze@usgs.gov","middleInitial":"A.","affiliations":[{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true},{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":403641,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Livo, K. Eric 0000-0001-7331-8130","orcid":"https://orcid.org/0000-0001-7331-8130","contributorId":17886,"corporation":false,"usgs":true,"family":"Livo","given":"K. Eric","affiliations":[],"preferred":false,"id":403644,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kokaly, Raymond F. 0000-0003-0276-7101 raymond@usgs.gov","orcid":"https://orcid.org/0000-0003-0276-7101","contributorId":150717,"corporation":false,"usgs":true,"family":"Kokaly","given":"Raymond","email":"raymond@usgs.gov","middleInitial":"F.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":403643,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Sutley, Steve J.","contributorId":33774,"corporation":false,"usgs":true,"family":"Sutley","given":"Steve","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":403646,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dalton, J. Brad","contributorId":90831,"corporation":false,"usgs":true,"family":"Dalton","given":"J.","email":"","middleInitial":"Brad","affiliations":[],"preferred":false,"id":403645,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"McDougal, Robert R. rmcdouga@usgs.gov","contributorId":1812,"corporation":false,"usgs":true,"family":"McDougal","given":"Robert","email":"rmcdouga@usgs.gov","middleInitial":"R.","affiliations":[],"preferred":false,"id":403642,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gent, Carol A.","contributorId":40646,"corporation":false,"usgs":true,"family":"Gent","given":"Carol","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":403640,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70025312,"text":"70025312 - 2003 - Simulation of Submarine Ground Water Discharge to a Marine Estuary: Biscayne Bay, Florida","interactions":[],"lastModifiedDate":"2012-03-12T17:20:28","indexId":"70025312","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Simulation of Submarine Ground Water Discharge to a Marine Estuary: Biscayne Bay, Florida","docAbstract":"Variable density ground water flow models are rarely used to estimate submarine ground water discharge because of limitations in computer speed, data availability, and availability of a simulation tool that can minimize numerical dispersion. This paper presents an application of the SEAWAT code, which is a combined version of MODFLOW and MT3D, to estimate rates of submarine ground water discharge to a coastal marine estuary. Discharge rates were estimated for Biscayne Bay, Florida, for the period from January 1989 to September 1998 using a three-dimensional, variable density ground water flow and transport model. Hydrologic stresses in the 10-layer model include recharge, evapotranspiration, ground water withdrawals from municipal wellfields, interactions with surface water (canals in urban areas and wetlands in the Everglades), boundary fluxes, and submarine ground water discharge to Biscayne Bay. The model was calibrated by matching ground water levels in monitoring wells, baseflow to canals, and the position of the 1995 salt water intrusion line. Results suggest that fresh submarine ground water discharge to Biscayne Bay may have exceeded surface water discharge during the 1989, 1990, and 1991 dry seasons, but the average discharge for the entire simulation period was only ???10% of the surface water discharge to the bay. Results from the model also suggest that tidal canals intercept fresh ground water that might otherwise have discharged directly to Biscayne Bay. This application demonstrates that regional scale variable density models are potentially useful tools for estimating rates of submarine ground water discharge.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2003.tb02417.x","issn":"0017467X","usgsCitation":"Langevin, C., 2003, Simulation of Submarine Ground Water Discharge to a Marine Estuary: Biscayne Bay, Florida: Ground Water, v. 41, no. 6, p. 758-771, https://doi.org/10.1111/j.1745-6584.2003.tb02417.x.","startPage":"758","endPage":"771","numberOfPages":"14","costCenters":[],"links":[{"id":209475,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2003.tb02417.x"},{"id":235964,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"41","issue":"6","noUsgsAuthors":false,"publicationDate":"2005-12-13","publicationStatus":"PW","scienceBaseUri":"505b9007e4b08c986b319294","contributors":{"authors":[{"text":"Langevin, C.D.","contributorId":25976,"corporation":false,"usgs":true,"family":"Langevin","given":"C.D.","email":"","affiliations":[],"preferred":false,"id":404722,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70025368,"text":"70025368 - 2003 - Variation in habitat use by juvenile Acadian redfish, Sebastes fasciatus","interactions":[],"lastModifiedDate":"2017-10-04T19:02:07","indexId":"70025368","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1528,"text":"Environmental Biology of Fishes","active":true,"publicationSubtype":{"id":10}},"title":"Variation in habitat use by juvenile Acadian redfish, Sebastes fasciatus","docAbstract":"A basic paradigm in behavioral ecology is that organisms expand their distribution as preferred sites become saturated with individuals that reduce the availability of resources (e.g., shelter, prey) on a per capita basis. Previous fish community studies at Stellwagen Bank National Marine Sanctuary have shown that juvenile Acadian redfish Sebastes fasciatus (<20 cm total length; TL) were primarily associated with boulder reefs that have deep interstices amongst the boulders; and that redfish expanded their distribution to adjacent gravel habitats when local abundance on reefs was high. Multibeam and sidescan sonar surveys in Stellwagen Basin (primarily a cohesive mud seafloor) have shown that discrete small areas of the basin floor are composed of mud draped gravel and partially buried boulders. Linear video transects using remotely operated vehicles and a video/photographic equipped grab sampler across five of these sites in 1997 showed that exposed boulders do not have crevices along their lower margins and are surrounded by dense patches of cerianthid anemones, Cerianthus borealis. These anemone patches are not present on the surrounding mud seafloor. Video image data showed that late juvenile redfish (11-20 cm TL) occurred on boulder reefs as well as in the dense cerianthid patches but not on unstructured mud habitat (without cerianthid anemones). Comparisons of boulder reef and cerianthid habitats in 1998 showed that early demersal phase (0-year) redfish (0-10 cm TL) occurred only on reefs but late juveniles occurred both on the reefs and in dense cerianthid habitats. Adult size classes (>20 cm TL) also occurred in dense cerianthid habitats. Two explanations for these distributions can be advanced. The simplest is that redfish use both boulder and cerianthid habitats on an encounter basis, regardless of habitat saturation or predation pressure. Alternatively, boulder reefs serve as recruitment habitats and cerianthid habitats serve as a conduit for redfish moving away from saturated boulder reef sites, essentially serving as elements of a 'redfish pump'.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Biology of Fishes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1023/B:EBFI.0000005751.30906.d5","issn":"03781909","usgsCitation":"Auster, P., Lindholm, J., and Valentine, P.C., 2003, Variation in habitat use by juvenile Acadian redfish, Sebastes fasciatus: Environmental Biology of Fishes, v. 68, no. 4, p. 381-389, https://doi.org/10.1023/B:EBFI.0000005751.30906.d5.","productDescription":"9 p.","startPage":"381","endPage":"389","costCenters":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":235662,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209341,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1023/B:EBFI.0000005751.30906.d5"}],"country":"United States","otherGeospatial":"Gulf of Maine, Stellwagen Basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -71.3671875,\n              40.613952441166596\n            ],\n            [\n              -64.97314453125,\n              40.613952441166596\n            ],\n            [\n              -64.97314453125,\n              45.120052841530544\n            ],\n            [\n              -71.3671875,\n              45.120052841530544\n            ],\n            [\n              -71.3671875,\n              40.613952441166596\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"68","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc15ae4b08c986b32a52a","contributors":{"authors":[{"text":"Auster, P.J.","contributorId":99323,"corporation":false,"usgs":true,"family":"Auster","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":404922,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lindholm, J.","contributorId":7052,"corporation":false,"usgs":true,"family":"Lindholm","given":"J.","email":"","affiliations":[],"preferred":false,"id":404920,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Valentine, P. C.","contributorId":46505,"corporation":false,"usgs":true,"family":"Valentine","given":"P.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":404921,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025975,"text":"70025975 - 2003 - Gaussian statistics for palaeomagnetic vectors","interactions":[],"lastModifiedDate":"2018-10-29T12:00:23","indexId":"70025975","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1803,"text":"Geophysical Journal International","active":true,"publicationSubtype":{"id":10}},"title":"Gaussian statistics for palaeomagnetic vectors","docAbstract":"With the aim of treating the statistics of palaeomagnetic directions and intensities jointly and consistently, we represent the mean and the variance of palaeomagnetic vectors, at a particular site and of a particular polarity, by a probability density function in a Cartesian three-space of orthogonal magnetic-field components consisting of a single (unimoda) non-zero mean, spherically-symmetrical (isotropic) Gaussian function. For palaeomagnetic data of mixed polarities, we consider a bimodal distribution consisting of a pair of such symmetrical Gaussian functions, with equal, but opposite, means and equal variances. For both the Gaussian and bi-Gaussian distributions, and in the spherical three-space of intensity, inclination, and declination, we obtain analytical expressions for the marginal density functions, the cumulative distributions, and the expected values and variances for each spherical coordinate (including the angle with respect to the axis of symmetry of the distributions). The mathematical expressions for the intensity and off-axis angle are closed-form and especially manageable, with the intensity distribution being Rayleigh-Rician. In the limit of small relative vectorial dispersion, the Gaussian (bi-Gaussian) directional distribution approaches a Fisher (Bingham) distribution and the intensity distribution approaches a normal distribution. In the opposite limit of large relative vectorial dispersion, the directional distributions approach a spherically-uniform distribution and the intensity distribution approaches a Maxwell distribution. We quantify biases in estimating the properties of the vector field resulting from the use of simple arithmetic averages, such as estimates of the intensity or the inclination of the mean vector, or the variances of these quantities. With the statistical framework developed here and using the maximum-likelihood method, which gives unbiased estimates in the limit of large data numbers, we demonstrate how to formulate the inverse problem, and how to estimate the mean and variance of the magnetic vector field, even when the data consist of mixed combinations of directions and intensities. We examine palaeomagnetic secular-variation data from Hawaii and Re??union, and although these two sites are on almost opposite latitudes, we find significant differences in the mean vector and differences in the local vectorial variances, with the Hawaiian data being particularly anisotropic. These observations are inconsistent with a description of the mean field as being a simple geocentric axial dipole and with secular variation being statistically symmetrical with respect to reflection through the equatorial plane. Finally, our analysis of palaeomagnetic acquisition data from the 1960 Kilauea flow in Hawaii and the Holocene Xitle flow in Mexico, is consistent with the widely held suspicion that directional data are more accurate than intensity data.","language":"English","publisher":"Oxford Academic","doi":"10.1046/j.1365-246X.2003.01858.x","issn":"0956540X","usgsCitation":"Love, J.J., and Constable, C., 2003, Gaussian statistics for palaeomagnetic vectors: Geophysical Journal International, v. 152, no. 3, p. 515-565, https://doi.org/10.1046/j.1365-246X.2003.01858.x.","productDescription":"51 p.","startPage":"515","endPage":"565","costCenters":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"links":[{"id":208754,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1046/j.1365-246X.2003.01858.x"},{"id":234723,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"152","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a14e6e4b0c8380cd54c05","contributors":{"authors":[{"text":"Love, Jeffrey J. 0000-0002-3324-0348 jlove@usgs.gov","orcid":"https://orcid.org/0000-0002-3324-0348","contributorId":760,"corporation":false,"usgs":true,"family":"Love","given":"Jeffrey","email":"jlove@usgs.gov","middleInitial":"J.","affiliations":[{"id":300,"text":"Geologic Hazards Science Center","active":true,"usgs":true}],"preferred":true,"id":407351,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Constable, C.G.","contributorId":22948,"corporation":false,"usgs":true,"family":"Constable","given":"C.G.","email":"","affiliations":[],"preferred":false,"id":407350,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025977,"text":"70025977 - 2003 - Status and interconnections of selected environmental issues in the global coastal zones","interactions":[],"lastModifiedDate":"2023-03-07T14:15:54.826136","indexId":"70025977","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":698,"text":"Ambio","active":true,"publicationSubtype":{"id":10}},"title":"Status and interconnections of selected environmental issues in the global coastal zones","docAbstract":"This study focuses on assessing the state of population distribution, land cover distribution, biodiversity hotspots, and protected areas in global coastal zones. The coastal zone is defined as land within 100 km of the coastline. This study attempts to answer such questions as: how crowded are the coastal zones, what is the pattern of land cover distribution in these areas, how much of these areas are designated as protected areas, what is the state of the biodiversity hotspots, and what are the interconnections between people and coastal environment. This study uses globally consistent and comprehensive geospatial datasets based on remote sensing and other sources. The application of Geographic Information System (GIS) layering methods and consistent datasets has made it possible to identify and quantify selected coastal zones environmental issues and their interconnections. It is expected that such information provide a scientific basis for global coastal zones management and assist in policy formulations at the national and international levels.","language":"English","publisher":"Royal Swedish Academy of Sciences","doi":"10.1579/0044-7447-32.2.145","issn":"00447447","usgsCitation":"Shi, H., and Singh, A., 2003, Status and interconnections of selected environmental issues in the global coastal zones: Ambio, v. 32, no. 2, p. 145-152, https://doi.org/10.1579/0044-7447-32.2.145.","productDescription":"8 p.","startPage":"145","endPage":"152","numberOfPages":"8","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":234761,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b978ae4b08c986b31bb08","contributors":{"authors":[{"text":"Shi, Hua 0000-0001-7013-1565 hshi@usgs.gov","orcid":"https://orcid.org/0000-0001-7013-1565","contributorId":646,"corporation":false,"usgs":true,"family":"Shi","given":"Hua","email":"hshi@usgs.gov","affiliations":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true},{"id":223,"text":"Earth Resources Observation and Science (EROS) Center (Geography)","active":false,"usgs":true}],"preferred":true,"id":407355,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Singh, Ashbindu singh@usgs.gov","contributorId":5410,"corporation":false,"usgs":true,"family":"Singh","given":"Ashbindu","email":"singh@usgs.gov","affiliations":[],"preferred":true,"id":407354,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025315,"text":"70025315 - 2003 - Characterization of yield reduction in Ethiopia using a GIS-based crop water balance model","interactions":[],"lastModifiedDate":"2015-08-27T14:19:25","indexId":"70025315","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1175,"text":"Canadian Journal of Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Characterization of yield reduction in Ethiopia using a GIS-based crop water balance model","docAbstract":"<p>In many parts of sub-Saharan Africa, subsistence agriculture is characterized by significant fluctuations in yield and production due to variations in moisture availability to staple crops. Widespread drought can lead to crop failures, with associated deterioration in food security. Ground data collection networks are sparse, so methods using geospatial rainfall estimates derived from satellite and gauge observations, where available, have been developed to calculate seasonal crop water balances. Using conventional crop production data for 4 years in Ethiopia (1996-1999), it was found that water-limited and water-unlimited growing regions can be distinguished. Furthermore, maize growing conditions are also indicative of conditions for sorghum. However, another major staple, teff, was found to behave sufficiently differently from maize to warrant studies of its own.</p>","language":"English","publisher":"Taylor & Francis","doi":"10.5589/m03-039","issn":"07038992","usgsCitation":"Senay, G., and Verdin, J., 2003, Characterization of yield reduction in Ethiopia using a GIS-based crop water balance model: Canadian Journal of Remote Sensing, v. 29, no. 6, p. 687-692, https://doi.org/10.5589/m03-039.","productDescription":"6 p.","startPage":"687","endPage":"692","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":236035,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"29","issue":"6","noUsgsAuthors":false,"publicationDate":"2014-06-02","publicationStatus":"PW","scienceBaseUri":"5059f4ece4b0c8380cd4bfdd","contributors":{"authors":[{"text":"Senay, G.B. 0000-0002-8810-8539","orcid":"https://orcid.org/0000-0002-8810-8539","contributorId":17741,"corporation":false,"usgs":true,"family":"Senay","given":"G.B.","affiliations":[],"preferred":false,"id":404728,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Verdin, J. 0000-0003-0238-9657","orcid":"https://orcid.org/0000-0003-0238-9657","contributorId":26112,"corporation":false,"usgs":true,"family":"Verdin","given":"J.","affiliations":[],"preferred":false,"id":404729,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70026096,"text":"70026096 - 2003 - Breeding ecology of Horned Puffins (<i>Fratercula corniculata</i>) in Alaska: annual variation and effects of El Niño","interactions":[],"lastModifiedDate":"2017-11-18T09:31:11","indexId":"70026096","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1176,"text":"Canadian Journal of Zoology","active":true,"publicationSubtype":{"id":10}},"title":"Breeding ecology of Horned Puffins (<i>Fratercula corniculata</i>) in Alaska: annual variation and effects of El Niño","docAbstract":"<p><span>Both within and among seabird species, different aspects of breeding biology may respond to changes in prey availability in distinct ways, and the identification of species-specific breeding parameters that are sensitive to food availability is useful for monitoring purposes. We present data from a 5-year study (1995–1999) of the breeding ecology of Horned Puffins (</span><i>Fratercula corniculata</i><span>) in Alaska. The El Ni&ntilde;o – Southern Oscillation event of 1997–1998 provided an opportunity to examine the sensitivity of various breeding parameters to a reduction in prey availability caused by the anomalous oceanographic conditions of 1998. Horned Puffins were able to maintain high fledging success (83–97%) over the 5 years of the study, despite the poor local feeding conditions in 1998. The rate of increase in chick mass was lowest in 1998, and evidence suggests that chicks also fledged at the youngest ages in that year. The impacts of reduced food availability on growth varied among body structures, suggesting differential allocation of energy and nutrients. There was no variation among years in either chick diet or the mass of food loads delivered by adults. We suggest that rates of chick growth, specifically mass increase, may be a good parameter to measure for use in monitoring Horned Puffins.</span></p>","language":"English","publisher":"NRC Research Press","doi":"10.1139/z03-075","issn":"00084301","usgsCitation":"Harding, A., Piatt, J.F., and Hamer, K.C., 2003, Breeding ecology of Horned Puffins (<i>Fratercula corniculata</i>) in Alaska: annual variation and effects of El Niño: Canadian Journal of Zoology, v. 81, no. 6, p. 1004-1013, https://doi.org/10.1139/z03-075.","productDescription":"10 p.","startPage":"1004","endPage":"1013","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":235026,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208924,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/z03-075"}],"volume":"81","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f26de4b0c8380cd4b184","contributors":{"authors":[{"text":"Harding, A.M.A.","contributorId":29088,"corporation":false,"usgs":true,"family":"Harding","given":"A.M.A.","email":"","affiliations":[],"preferred":false,"id":407888,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Piatt, John F. 0000-0002-4417-5748 jpiatt@usgs.gov","orcid":"https://orcid.org/0000-0002-4417-5748","contributorId":3025,"corporation":false,"usgs":true,"family":"Piatt","given":"John","email":"jpiatt@usgs.gov","middleInitial":"F.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"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":407890,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hamer, Keith C.","contributorId":51960,"corporation":false,"usgs":false,"family":"Hamer","given":"Keith","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":407889,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025375,"text":"70025375 - 2003 - Downstream movement of mature eels in a hydroelectric reservoir in New Zealand","interactions":[],"lastModifiedDate":"2012-03-12T17:20:29","indexId":"70025375","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":718,"text":"American Fisheries Society Symposium","active":true,"publicationSubtype":{"id":10}},"title":"Downstream movement of mature eels in a hydroelectric reservoir in New Zealand","docAbstract":"This study investigates the behavior of migrant eels as they approached the Patea hydroelectric dam on the West Coast of the North Island, New Zealand. Seventeen mature migrant eels (870-1,240 mm; 2,000-6,380 g) were implanted with coded acoustic transmitters and released. Their movements in the reservoir were monitored for 14 months with stationary data logging and manual tracking receivers. The downstream migration of sexually maturing eels was found to occur mainly at night, usually during, or immediately after, rainfall events. Eels tended to travel at the surface, within the upper 4 m of the water column, at speeds ranging from 16 to 89 cm/s. Upon reaching the headrace, eels typically spent time searching, presumably for an unobstructed downstream route. In order to aid downstream passage of eels at the Patea Dam, power station operators began spillway opening trials during peak migration periods. Although this allowed some migrant eels to safely pass over the dam, information on the relative effectiveness and cost of this method over other possible mitigation methods is still required. ?? Copyright by the American Fisheries Society 2003.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Fisheries Society Symposium","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"08922284","usgsCitation":"Watene, E., Boubee, J., and Haro, A., 2003, Downstream movement of mature eels in a hydroelectric reservoir in New Zealand: American Fisheries Society Symposium, v. 2003, no. 33, p. 295-305.","startPage":"295","endPage":"305","numberOfPages":"11","costCenters":[],"links":[{"id":235781,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2003","issue":"33","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a03b8e4b0c8380cd5061e","contributors":{"authors":[{"text":"Watene, E.M.","contributorId":84961,"corporation":false,"usgs":true,"family":"Watene","given":"E.M.","email":"","affiliations":[],"preferred":false,"id":404952,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boubee, J.A.T.","contributorId":9438,"corporation":false,"usgs":true,"family":"Boubee","given":"J.A.T.","email":"","affiliations":[],"preferred":false,"id":404951,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haro, A.","contributorId":6792,"corporation":false,"usgs":true,"family":"Haro","given":"A.","email":"","affiliations":[],"preferred":false,"id":404950,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025310,"text":"70025310 - 2003 - Supporting users through integrated retrieval, processing, and distribution systems at the land processes distributed active archive center","interactions":[],"lastModifiedDate":"2012-03-12T17:20:28","indexId":"70025310","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Supporting users through integrated retrieval, processing, and distribution systems at the land processes distributed active archive center","docAbstract":"The design of the EOS Data and Information Systems (EOSDIS) to acquire, archive, manage and distribute Earth observation data to the broadest possible user community was discussed. A number of several integrated retrieval, processing and distribution capabilities have been explained. The value of these functions to the users were described and potential future improvements were laid out for the users. The users were interested in acquiring the retrieval, processing and archiving systems integrated so that they can get the data they want in the format and delivery mechanism of their choice.","largerWorkTitle":"54th International Astronautical Congress of the International Astronautical Federation (IAF), the International Academy of Astronautics and the International Institute of Space Law","conferenceTitle":"54th International Astronautical Congress of the International Astronautical Federation (IAF), the International Academy of Astronautics and the International Institute of Space Law","conferenceDate":"29 September 2003 through 3 October 2003","conferenceLocation":"Bremen","language":"English","usgsCitation":"Kalvelage, T., and Willems, J., 2003, Supporting users through integrated retrieval, processing, and distribution systems at the land processes distributed active archive center, <i>in</i> 54th International Astronautical Congress of the International Astronautical Federation (IAF), the International Academy of Astronautics and the International Institute of Space Law, v. 1, Bremen, 29 September 2003 through 3 October 2003, p. 1035-1042.","startPage":"1035","endPage":"1042","numberOfPages":"8","costCenters":[],"links":[{"id":235928,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9f81e4b08c986b31e623","contributors":{"authors":[{"text":"Kalvelage, T.","contributorId":94479,"corporation":false,"usgs":true,"family":"Kalvelage","given":"T.","affiliations":[],"preferred":false,"id":404716,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Willems, Jennifer","contributorId":53578,"corporation":false,"usgs":true,"family":"Willems","given":"Jennifer","email":"","affiliations":[],"preferred":false,"id":404715,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025309,"text":"70025309 - 2003 - The impact of a prominent rain shadow on flooding in California's Santa Cruz Mountains: A CALJET case study and sensitivity to the ENSO cycle","interactions":[],"lastModifiedDate":"2018-09-25T11:19:05","indexId":"70025309","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2344,"text":"Journal of Hydrometeorology","active":true,"publicationSubtype":{"id":10}},"title":"The impact of a prominent rain shadow on flooding in California's Santa Cruz Mountains: A CALJET case study and sensitivity to the ENSO cycle","docAbstract":"Data from the California Land-Falling Jets Experiment (CALJET) are used to explore the causes of variations in flood severity in adjacent coastal watersheds within the Santa Cruz Mountains on 2-3 February 1998. While Pescadero Creek (rural) experienced its flood of record, the adjacent San Lorenzo Creek (heavily populated), attained only its fourth-highest flow. This difference resulted from conditions present while the warm sector of the storm, with its associated low-level jet, high moisture content, and weak static stability, was overhead. Rainfall in the warm sector was dominated by orographic forcing. While the wind speed strongly modulated rain rates on windward slopes, the wind direction positioned the edge of a rain shadow cast by the Santa Lucia Mountains partially over the San Lorenzo basin, thus protecting the city of Santa Cruz from a more severe flood. Roughly 26% ?? 9% of the streamflow at flood peak on Pescadero Creek resulted from the warm-sector rainfall. Without this rainfall, the peak flow on Pescadero Creek would likely not have attained record status. These results are complemented by a climatological analysis based on ???50-yr-duration streamflow records for these and two other nearby windward watersheds situated ???20 to 40 km farther to the east, and a comparison of this climatological analysis with composites of NCEP-NCAR reanalysis fields. The westernmost watersheds were found to have their greatest floods during El Nin??o winters, while the easternmost watersheds peaked during non-El Nin??o episodes. These results are consistent with the case study, that showed that the composite 925-mb, meridionally oriented wind direction during El Nin??os favors a rain shadow over the eastern watersheds. During non-El Nin??o periods, the composite, zonally oriented wind direction indicates that the sheltering effect of the rain shadow on the eastern watersheds is reduced, while weaker winds, less water vapor, and stronger stratification reduce the peak runoff in the western watersheds relative to El Nin??o periods. These case study and climatological results illustrate the importance of conditions in the moisture-rich warm sector of landfalling Pacific winter storms. Although many other variables can influence flooding, this study shows that variations of ??10?? in wind direction can modulate the location of orographically enhanced floods. While terrain can increase predictability (e.g., rainfall typically increases with altitude), the predictability is reduced when conditions are near a threshold separating different regimes (e.g., in or out of a rain shadow ).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrometeorology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1175/1525-7541(2003)004<1243:TIOAPR>2.0.CO;2","issn":"1525755X","usgsCitation":"Ralph, F., Neiman, P., Kingsmill, D., Persson, P., White, A., Strem, E., Andrews, E., and Antweiler, R.C., 2003, The impact of a prominent rain shadow on flooding in California's Santa Cruz Mountains: A CALJET case study and sensitivity to the ENSO cycle: Journal of Hydrometeorology, v. 4, no. 6, p. 1243-1264, https://doi.org/10.1175/1525-7541(2003)004<1243:TIOAPR>2.0.CO;2.","startPage":"1243","endPage":"1264","numberOfPages":"22","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":478504,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1175/1525-7541(2003)004<1243:tioapr>2.0.co;2","text":"Publisher Index Page"},{"id":235927,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209459,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1175/1525-7541(2003)004<1243:TIOAPR>2.0.CO;2"}],"volume":"4","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bacdde4b08c986b3237c6","contributors":{"authors":[{"text":"Ralph, F.M.","contributorId":39174,"corporation":false,"usgs":true,"family":"Ralph","given":"F.M.","email":"","affiliations":[],"preferred":false,"id":404711,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Neiman, P.J.","contributorId":14991,"corporation":false,"usgs":true,"family":"Neiman","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":404708,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kingsmill, D.E.","contributorId":27658,"corporation":false,"usgs":true,"family":"Kingsmill","given":"D.E.","email":"","affiliations":[],"preferred":false,"id":404709,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Persson, P.O.G.","contributorId":58825,"corporation":false,"usgs":true,"family":"Persson","given":"P.O.G.","email":"","affiliations":[],"preferred":false,"id":404714,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"White, A.B.","contributorId":45878,"corporation":false,"usgs":true,"family":"White","given":"A.B.","email":"","affiliations":[],"preferred":false,"id":404712,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Strem, E.T.","contributorId":28420,"corporation":false,"usgs":true,"family":"Strem","given":"E.T.","email":"","affiliations":[],"preferred":false,"id":404710,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Andrews, E.D.","contributorId":13922,"corporation":false,"usgs":true,"family":"Andrews","given":"E.D.","email":"","affiliations":[],"preferred":false,"id":404707,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Antweiler, Ronald C. 0000-0001-5652-6034 antweil@usgs.gov","orcid":"https://orcid.org/0000-0001-5652-6034","contributorId":1481,"corporation":false,"usgs":true,"family":"Antweiler","given":"Ronald","email":"antweil@usgs.gov","middleInitial":"C.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":404713,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70025305,"text":"70025305 - 2003 - Quantitative morphology of a fringing reef tract from high-resolution laser bathymetry: Southern Molokai, Hawaii","interactions":[],"lastModifiedDate":"2012-03-12T17:20:29","indexId":"70025305","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1786,"text":"Geological Society of America Bulletin","active":true,"publicationSubtype":{"id":10}},"title":"Quantitative morphology of a fringing reef tract from high-resolution laser bathymetry: Southern Molokai, Hawaii","docAbstract":"High-resolution Scanning Hydrographic Operational Airborne Lidar Survey (SHOALS) laser-determined bathymetric data were used to define the morphology of spur-and-groove structures on the fringing reef off the south coast of Molokai, Hawaii. These data provide a basis for mapping and analyzing morphology of the reef with a level of precision and spatial coverage never before attained. An extensive fringing coral reef stretches along the central two-thirds of Molokai's south shore (???40 km); along the east and west ends there is only a thin veneer of living coral with no developed reef complex. In total, ???4800 measurements of spur-and-groove height and the distance between adjacent spur crests (wavelength) were obtained along four isobaths. Between the 5m and 15m isobaths, the mean spur height increased from 0.7 m to 1.6 m, whereas the mean wavelength increased from 71 m to 104 m. Reef flat width was found to exponentially decrease with increasing wave energy. Overall, mean spur-and-groove height and wavelength were shown to be inversely proportional to wave energy. In high-energy environments, spur-and-groove morphology remains relatively constant across all water depths. In low-energy environments, however, spur-and-groove structures display much greater variation; they are relatively small and narrow in shallow depths and develop into much larger and broader features in deeper water. Therefore, it appears that waves exert a primary control on both the small and large-scale morphology of the reef off south Molokai.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geological Society of America Bulletin","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1130/B25200.1","issn":"00167606","usgsCitation":"Storlazzi, C., Logan, J., and Field, M., 2003, Quantitative morphology of a fringing reef tract from high-resolution laser bathymetry: Southern Molokai, Hawaii: Geological Society of America Bulletin, v. 115, no. 11, p. 1344-1355, https://doi.org/10.1130/B25200.1.","startPage":"1344","endPage":"1355","numberOfPages":"12","costCenters":[],"links":[{"id":209424,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1130/B25200.1"},{"id":235851,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"115","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a9228e4b0c8380cd806c9","contributors":{"authors":[{"text":"Storlazzi, C. D. 0000-0001-8057-4490","orcid":"https://orcid.org/0000-0001-8057-4490","contributorId":98905,"corporation":false,"usgs":true,"family":"Storlazzi","given":"C. D.","affiliations":[],"preferred":false,"id":404696,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Logan, J.B.","contributorId":43150,"corporation":false,"usgs":true,"family":"Logan","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":404695,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Field, M.E.","contributorId":27052,"corporation":false,"usgs":true,"family":"Field","given":"M.E.","affiliations":[],"preferred":false,"id":404694,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70026117,"text":"70026117 - 2003 - Near-field survey of the 1946 Aleutian tsunami on Unimak and Sanak Islands","interactions":[],"lastModifiedDate":"2021-07-19T15:47:09.577405","indexId":"70026117","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Near-field survey of the 1946 Aleutian tsunami on Unimak and Sanak Islands","docAbstract":"<p><span>The&nbsp;</span>1946<span>&nbsp;</span>Aleutian<span>&nbsp;earthquake stands out among tsunamigenic events because it generated both very high run-up&nbsp;</span>near<span>&nbsp;the earthquake source region and a destructive trans-Pacific&nbsp;</span>tsunami<span>. We obtained new data on the distribution of its&nbsp;</span>tsunami<span>&nbsp;in the&nbsp;</span>near<span>&nbsp;</span>field<span>&nbsp;along south-facing coasts between&nbsp;</span>Unimak<span>&nbsp;Pass on the west and&nbsp;</span>Sanak<span>&nbsp;</span>Island<span>&nbsp;on the east by measuring the height of driftwood and beach materials that were deposited by the&nbsp;</span>tsunami<span>&nbsp;above the extreme storm tide level. Our data indicate that (1) the highest measured run-up, which is at the Scotch Cap lighthouse, was 42 m above tide level or about 37 m above present storm tide elevation; (2) run-up along the rugged coast from Scotch Cap for 12 km northwest to Sennett Point is 12-18 m, and for 30 km east of Scotch Cap to Cape Lutke it is 24-42 m; (3) run-up along the broad lowlands bordering&nbsp;</span>Unimak<span>&nbsp;Bight is 10-20 m, and in-undation is locally more than 2 km; (5) run-up diminishes to 8 m or less at the southeast corner of&nbsp;</span>Unimak<span>&nbsp;</span>Island<span>; (6) no evidence was found for run-up above present storm tides (about 4-5 m above MLLW) on the Ikatan Peninsula or areas along the coast to the west; and (7) run-up above storm tide level in the&nbsp;</span>Sanak<span>&nbsp;</span>Island<span>&nbsp;group is restricted to southwest-facing coasts of&nbsp;</span>Sanak<span>, Long, and Clifford&nbsp;</span>Islands<span>, where it is continuous and locally up to 24 m high. Generation of the&nbsp;</span>tsunami<span>&nbsp;by one or more major earthquake-triggered submarine landslides&nbsp;</span>near<span>&nbsp;the shelf edge south of&nbsp;</span>Unimak<span>&nbsp;</span>Island<span>&nbsp;seems to be the only viable mechanism to account for the data on wave arrival time, run-up heights, and distribution, as well as for unconfirmed anecdotal reports of local postquake increases in water depth and diminished bottom-fisheries productivity. A preliminary hydrodynamic simulation of the local&nbsp;</span>tsunami<span>&nbsp;propagation and run-up using a dipolar model of a possible landslide off Davidson Bank provides an acceptable fit to the characteristics of the distribution of local run-up, with a value at 34 m at the Scotch Cap lighthouse.</span></p>","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0120020198","issn":"00371106","usgsCitation":"Okal, E., Plafker, G., Synolakis, C., and Borrero, J., 2003, Near-field survey of the 1946 Aleutian tsunami on Unimak and Sanak Islands: Bulletin of the Seismological Society of America, v. 93, no. 3, p. 1226-1234, https://doi.org/10.1785/0120020198.","productDescription":"9 p.","startPage":"1226","endPage":"1234","costCenters":[],"links":[{"id":387242,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"93","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a63f8e4b0c8380cd727ca","contributors":{"authors":[{"text":"Okal, E.A.","contributorId":35082,"corporation":false,"usgs":true,"family":"Okal","given":"E.A.","affiliations":[],"preferred":false,"id":407984,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Plafker, George 0000-0003-3972-0390","orcid":"https://orcid.org/0000-0003-3972-0390","contributorId":36603,"corporation":false,"usgs":true,"family":"Plafker","given":"George","affiliations":[],"preferred":false,"id":407985,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Synolakis, C.E.","contributorId":51510,"corporation":false,"usgs":true,"family":"Synolakis","given":"C.E.","email":"","affiliations":[],"preferred":false,"id":407986,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Borrero, J.C.","contributorId":8656,"corporation":false,"usgs":true,"family":"Borrero","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":407983,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70026116,"text":"70026116 - 2003 - Estimating lava volume by precision combination of multiple baseline spaceborne and airborne interferometric synthetic aperture radar: The 1997 eruption of Okmok Volcano, Alaska","interactions":[],"lastModifiedDate":"2017-05-31T16:31:45","indexId":"70026116","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1944,"text":"IEEE Transactions on Geoscience and Remote Sensing","active":true,"publicationSubtype":{"id":10}},"title":"Estimating lava volume by precision combination of multiple baseline spaceborne and airborne interferometric synthetic aperture radar: The 1997 eruption of Okmok Volcano, Alaska","docAbstract":"Interferometric synthetic aperture radar (InSAR) techniques are used to calculate the volume of extrusion at Okmok volcano, Alaska by constructing precise digital elevation models (DEMs) that represent volcano topography before and after the 1997 eruption. The posteruption DEM is generated using airborne topographic synthetic aperture radar (TOPSAR) data where a three-dimensional affine transformation is used to account for the misalignments between different DEM patches. The preeruption DEM is produced using repeat-pass European Remote Sensing satellite data; multiple interferograms are combined to reduce errors due to atmospheric variations, and deformation rates are estimated independently and removed from the interferograms used for DEM generation. The extrusive flow volume associated with the 1997 eruption of Okmok volcano is 0.154 ?? 0.025 km3. The thickest portion is approximately 50 m, although field measurements of the flow margin's height do not exceed 20 m. The in situ measurements at lava edges are not representative of the total thickness, and precise DEM data are absolutely essential to calculate eruption volume based on lava thickness estimations. This study is an example that demonstrates how InSAR will play a significant role in studying volcanoes in remote areas.","language":"English","publisher":"IEEE","doi":"10.1109/TGRS.2003.811553","issn":"01962892","usgsCitation":"Lu, Z., Fielding, E., Patrick, M., and Trautwein, C., 2003, Estimating lava volume by precision combination of multiple baseline spaceborne and airborne interferometric synthetic aperture radar: The 1997 eruption of Okmok Volcano, Alaska: IEEE Transactions on Geoscience and Remote Sensing, v. 41, no. 6, p. 1428-1436, https://doi.org/10.1109/TGRS.2003.811553.","productDescription":"9 p.","startPage":"1428","endPage":"1436","numberOfPages":"9","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":234770,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208780,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/TGRS.2003.811553"}],"volume":"41","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0b26e4b0c8380cd525ca","contributors":{"authors":[{"text":"Lu, Z.","contributorId":106241,"corporation":false,"usgs":true,"family":"Lu","given":"Z.","affiliations":[],"preferred":false,"id":407982,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fielding, E.","contributorId":51057,"corporation":false,"usgs":true,"family":"Fielding","given":"E.","affiliations":[],"preferred":false,"id":407979,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Patrick, M.R.","contributorId":96059,"corporation":false,"usgs":true,"family":"Patrick","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":407981,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Trautwein, C. M.","contributorId":86748,"corporation":false,"usgs":true,"family":"Trautwein","given":"C. M.","affiliations":[],"preferred":false,"id":407980,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70025384,"text":"70025384 - 2003 - Using multiple logistic regression and GIS technology to predict landslide hazard in northeast Kansas, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:20:29","indexId":"70025384","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1517,"text":"Engineering Geology","active":true,"publicationSubtype":{"id":10}},"title":"Using multiple logistic regression and GIS technology to predict landslide hazard in northeast Kansas, USA","docAbstract":"Landslides in the hilly terrain along the Kansas and Missouri rivers in northeastern Kansas have caused millions of dollars in property damage during the last decade. To address this problem, a statistical method called multiple logistic regression has been used to create a landslide-hazard map for Atchison, Kansas, and surrounding areas. Data included digitized geology, slopes, and landslides, manipulated using ArcView GIS. Logistic regression relates predictor variables to the occurrence or nonoccurrence of landslides within geographic cells and uses the relationship to produce a map showing the probability of future landslides, given local slopes and geologic units. Results indicated that slope is the most important variable for estimating landslide hazard in the study area. Geologic units consisting mostly of shale, siltstone, and sandstone were most susceptible to landslides. Soil type and aspect ratio were considered but excluded from the final analysis because these variables did not significantly add to the predictive power of the logistic regression. Soil types were highly correlated with the geologic units, and no significant relationships existed between landslides and slope aspect. ?? 2003 Elsevier Science B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Engineering Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0013-7952(03)00069-3","issn":"00137952","usgsCitation":"Ohlmacher, G., and Davis, J., 2003, Using multiple logistic regression and GIS technology to predict landslide hazard in northeast Kansas, USA: Engineering Geology, v. 69, no. 3-4, p. 331-343, https://doi.org/10.1016/S0013-7952(03)00069-3.","startPage":"331","endPage":"343","numberOfPages":"13","costCenters":[],"links":[{"id":209443,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0013-7952(03)00069-3"},{"id":235894,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"69","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc07ce4b08c986b32a158","contributors":{"authors":[{"text":"Ohlmacher, G.C.","contributorId":63064,"corporation":false,"usgs":true,"family":"Ohlmacher","given":"G.C.","email":"","affiliations":[],"preferred":false,"id":404984,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davis, J.C.","contributorId":72121,"corporation":false,"usgs":true,"family":"Davis","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":404985,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70025450,"text":"70025450 - 2003 - Gas hydrate volume estimations on the South Shetland continental margin, Antarctic Peninsula","interactions":[],"lastModifiedDate":"2012-03-12T17:20:25","indexId":"70025450","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":814,"text":"Antarctic Science","onlineIssn":"1365-2079","printIssn":"0954-1020","active":true,"publicationSubtype":{"id":10}},"title":"Gas hydrate volume estimations on the South Shetland continental margin, Antarctic Peninsula","docAbstract":"Multi-channel seismic data acquired on the South Shetland margin, northern Antarctic Peninsula, show that Bottom Simulating Reflectors (BSRs) are widespread in the area, implying large volumes of gas hydrates. In order to estimate the volume of gas hydrate in the area, interval velocities were determined using a 1-D velocity inversion method and porosities were deduced from their relationship with sub-bottom depth for terrigenous sediments. Because data such as well logs are not available, we made two baseline models for the velocities and porosities of non-gas hydrate-bearing sediments in the area, considering the velocity jump observed at the shallow sub-bottom depth due to joint contributions of gas hydrate and a shallow unconformity. The difference between the results of the two models is not significant. The parameters used to estimate the total volume of gas hydrate in the study area were 145 km of total length of BSRs identified on seismic profiles, 350 m thickness and 15 km width of gas hydrate-bearing sediments, and 6.3% of the average volume gas hydrate concentration (based on the second baseline model). Assuming that gas hydrates exist only where BSRs are observed, the total volume of gas hydrates along the seismic profiles in the area is about 4.8 ?? 1010 m3 (7.7 ?? 1012 m3 volume of methane at standard temperature and pressure).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Antarctic Science","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1017/S0954102003001275","issn":"09541020","usgsCitation":"Jin, Y., Lee, M.W., Kim, Y., Nam, S., and Kim, K., 2003, Gas hydrate volume estimations on the South Shetland continental margin, Antarctic Peninsula: Antarctic Science, v. 15, no. 2, p. 271-282, https://doi.org/10.1017/S0954102003001275.","startPage":"271","endPage":"282","numberOfPages":"12","costCenters":[],"links":[{"id":235704,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209362,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1017/S0954102003001275"}],"volume":"15","issue":"2","noUsgsAuthors":false,"publicationDate":"2003-05-20","publicationStatus":"PW","scienceBaseUri":"505a14d1e4b0c8380cd54ba4","contributors":{"authors":[{"text":"Jin, Y.K.","contributorId":60810,"corporation":false,"usgs":true,"family":"Jin","given":"Y.K.","email":"","affiliations":[],"preferred":false,"id":405241,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lee, Myung W.","contributorId":84358,"corporation":false,"usgs":true,"family":"Lee","given":"Myung","middleInitial":"W.","affiliations":[],"preferred":false,"id":405242,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kim, Y.","contributorId":38314,"corporation":false,"usgs":true,"family":"Kim","given":"Y.","email":"","affiliations":[],"preferred":false,"id":405239,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Nam, S.H.","contributorId":59220,"corporation":false,"usgs":true,"family":"Nam","given":"S.H.","email":"","affiliations":[],"preferred":false,"id":405240,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Kim, K.J.","contributorId":30418,"corporation":false,"usgs":true,"family":"Kim","given":"K.J.","email":"","affiliations":[],"preferred":false,"id":405238,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70025289,"text":"70025289 - 2003 - Modeling the Radiance of the Moon for On-orbit Calibration","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70025289","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Modeling the Radiance of the Moon for On-orbit Calibration","docAbstract":"The RObotic Lunar Observatory (ROLO) project has developed radiometric models of the Moon for disk-integrated irradiance and spatially resolved radiance. Although the brightness of the Moon varies spatially and with complex dependencies upon illumination and viewing geometry, the surface photometric properties are extremely stable, and therefore potentially knowable to high accuracy. The ROLO project has acquired 5+ years of spatially resolved lunar images in 23 VNIR and 9 SWIR filter bands at phase angles up to 90??. These images are calibrated to exoatmospheric radiance using nightly stellar observations in a band-coupled extinction algorithm and a radiometric scale based upon observations of the star Vega. An effort is currently underway to establish an absolute scale with direct traceability to NIST radiometric standards. The ROLO radiance model performs linear fitting of the spatially resolved lunar image data on an individual pixel basis. The results are radiance images directly comparable to spacecraft observations of the Moon. Model-generated radiance images have been produced for the ASTER lunar view conducted on 14 April 2003. The radiance model is still experimental - simplified photometric functions have been used, and initial results show evidence of computational instabilities, particularly at the lunar poles. The ROLO lunar image dataset is unique and extensive and presents opportunities for development of novel approaches to lunar photometric modeling.","largerWorkTitle":"Proceedings of SPIE - The International Society for Optical Engineering","conferenceTitle":"Earth Observing Systems VIII","conferenceDate":"3 August 2003 through 6 August 2003","conferenceLocation":"San Diego, CA","language":"English","doi":"10.1117/12.506117","issn":"0277786X","usgsCitation":"Stone, T., Kieffer, H.H., and Becker, K., 2003, Modeling the Radiance of the Moon for On-orbit Calibration, <i>in</i> Proceedings of SPIE - The International Society for Optical Engineering, v. 5151, San Diego, CA, 3 August 2003 through 6 August 2003, p. 463-470, https://doi.org/10.1117/12.506117.","startPage":"463","endPage":"470","numberOfPages":"8","costCenters":[],"links":[{"id":209587,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1117/12.506117"},{"id":236219,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"5151","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5c39e4b0c8380cd6fb01","contributors":{"editors":[{"text":"Barnes W.L.","contributorId":128354,"corporation":true,"usgs":false,"organization":"Barnes W.L.","id":536552,"contributorType":{"id":2,"text":"Editors"},"rank":1}],"authors":[{"text":"Stone, T.C.","contributorId":74874,"corporation":false,"usgs":true,"family":"Stone","given":"T.C.","email":"","affiliations":[],"preferred":false,"id":404632,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kieffer, H. H.","contributorId":40725,"corporation":false,"usgs":false,"family":"Kieffer","given":"H.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":404631,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Becker, K.J.","contributorId":88111,"corporation":false,"usgs":true,"family":"Becker","given":"K.J.","email":"","affiliations":[],"preferred":false,"id":404633,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70025287,"text":"70025287 - 2003 - US National Large-scale City Orthoimage Standard Initiative","interactions":[],"lastModifiedDate":"2012-03-12T17:20:57","indexId":"70025287","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"US National Large-scale City Orthoimage Standard Initiative","docAbstract":"The early procedures and algorithms for National digital orthophoto generation in National Digital Orthophoto Program (NDOP) were based on earlier USGS mapping operations, such as field control, aerotriangulation (derived in the early 1920's), the quarter-quadrangle-centered (3.75 minutes of longitude and latitude in geographic extent), 1:40,000 aerial photographs, and 2.5 D digital elevation models. However, large-scale city orthophotos using early procedures have disclosed many shortcomings, e.g., ghost image, occlusion, shadow. Thus, to provide the technical base (algorithms, procedure) and experience needed for city large-scale digital orthophoto creation is essential for the near future national large-scale digital orthophoto deployment and the revision of the Standards for National Large-scale City Digital Orthophoto in National Digital Orthophoto Program (NDOP). This paper will report our initial research results as follows: (1) High-precision 3D city DSM generation through LIDAR data processing, (2) Spatial objects/features extraction through surface material information and high-accuracy 3D DSM data, (3) 3D city model development, (4) Algorithm development for generation of DTM-based orthophoto, and DBM-based orthophoto, (5) True orthophoto generation by merging DBM-based orthophoto and DTM-based orthophoto, and (6) Automatic mosaic by optimizing and combining imagery from many perspectives.","largerWorkTitle":"International Geoscience and Remote Sensing Symposium (IGARSS)","conferenceTitle":"2003 IGARSS: Learning From Earth's Shapes and Colours","conferenceDate":"21 July 2003 through 25 July 2003","conferenceLocation":"Toulouse","language":"English","usgsCitation":"Zhou, G., Song, C., Benjamin, S., and Schickler, W., 2003, US National Large-scale City Orthoimage Standard Initiative, <i>in</i> International Geoscience and Remote Sensing Symposium (IGARSS), v. 6, Toulouse, 21 July 2003 through 25 July 2003, p. 3739-3741.","startPage":"3739","endPage":"3741","numberOfPages":"3","costCenters":[],"links":[{"id":236183,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbb53e4b08c986b32862d","contributors":{"authors":[{"text":"Zhou, G.","contributorId":12604,"corporation":false,"usgs":true,"family":"Zhou","given":"G.","email":"","affiliations":[],"preferred":false,"id":404617,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Song, C.","contributorId":80881,"corporation":false,"usgs":true,"family":"Song","given":"C.","email":"","affiliations":[],"preferred":false,"id":404620,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Benjamin, S.","contributorId":23474,"corporation":false,"usgs":true,"family":"Benjamin","given":"S.","email":"","affiliations":[],"preferred":false,"id":404619,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schickler, W.","contributorId":20526,"corporation":false,"usgs":true,"family":"Schickler","given":"W.","email":"","affiliations":[],"preferred":false,"id":404618,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70026062,"text":"70026062 - 2003 - Mercury in US coal: Observations using the COALQUAL and ICR data","interactions":[],"lastModifiedDate":"2012-03-12T17:20:34","indexId":"70026062","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Mercury in US coal: Observations using the COALQUAL and ICR data","docAbstract":"The COALQUAL data set lists the mercury content of samples collected from the in-ground US coal resource, whereas the ICR data set lists the mercury content of samples collected from coal shipments delivered to US electric utilities. After selection and adjustment of records, the COALQUAL data average 0.17 ??g Hg/g dry coal or 5.8 kg Hg/PJ, whereas the ICR data average 0.10 ??g Hg/g dry coal or 3.5 kg Hg/PJ. Because sample frequency does not correspond to the inground or produced tonnage, these values are not accurate estimates of the mercury content of either in-ground or delivered US coal. Commercial US coal contains less mercury than previously estimated, and its mercury content has declined during the 1990s. Selective mining and more extensive coal washing may accelerate the current trend towards lower mercury content in coal burned at US electric utilities.","largerWorkTitle":"Environmental Geology","language":"English","issn":"09430105","usgsCitation":"Quick, J., Brill, T., and Tabet, D., 2003, Mercury in US coal: Observations using the COALQUAL and ICR data, <i>in</i> Environmental Geology, v. 43, no. 3, p. 247-259.","startPage":"247","endPage":"259","numberOfPages":"13","costCenters":[],"links":[{"id":235024,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a540ce4b0c8380cd6ce7b","contributors":{"authors":[{"text":"Quick, J.C.","contributorId":80848,"corporation":false,"usgs":true,"family":"Quick","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":407752,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brill, T.C.","contributorId":26110,"corporation":false,"usgs":true,"family":"Brill","given":"T.C.","email":"","affiliations":[],"preferred":false,"id":407750,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Tabet, D.E.","contributorId":31536,"corporation":false,"usgs":true,"family":"Tabet","given":"D.E.","affiliations":[],"preferred":false,"id":407751,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70026278,"text":"70026278 - 2003 - Evidence for a Battle Mountain-Eureka crustal fault zone, north-central Nevada, and its relation to Neoproterozoic-Early Paleozoic continental breakup","interactions":[],"lastModifiedDate":"2012-03-12T17:20:37","indexId":"70026278","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2314,"text":"Journal of Geophysical Research B: Solid Earth","active":true,"publicationSubtype":{"id":10}},"title":"Evidence for a Battle Mountain-Eureka crustal fault zone, north-central Nevada, and its relation to Neoproterozoic-Early Paleozoic continental breakup","docAbstract":"Combined evidence from gravity, radiogenic isotope, and magnetotelluric (MT) data indicates a crustal fault zone that coincides with the northwest-trending Battle Mountain-Eureka (BME) mineral trend in north-central Nevada, USA. The BME crustal fault zone likely originated during Neoproterozoic-Early Paleozoic rifting of the continent and had a large influence on subsequent tectonic events, such as emplacement of allochthons and episodic deformation, magmatism, and mineralization throughout the Phanerozoic. MT models show the fault zone is about 10 km wide, 130-km long, and extends from 1 to 5 km below the surface to deep crustal levels. Isotope data and gravity models imply the fault zone separates crust of fundamentally different character. Geophysical evidence for such a long-lived structure, likely inherited from continental breakup, defies conventional wisdom that structures this old have been destroyed by Cenozoic extensional processes. Moreover, the coincidence with the alignment of mineral deposits supports the assertion by many economic geologists that these alignments are indicators of buried regional structures.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research B: Solid Earth","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"01480227","usgsCitation":"Grauch, V.J., Rodriguez, B.D., Bankey, V., and Wooden, J.L., 2003, Evidence for a Battle Mountain-Eureka crustal fault zone, north-central Nevada, and its relation to Neoproterozoic-Early Paleozoic continental breakup: Journal of Geophysical Research B: Solid Earth, v. 108, no. 3.","costCenters":[],"links":[{"id":233929,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"108","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0d2de4b0c8380cd52e65","contributors":{"authors":[{"text":"Grauch, V. J. S. 0000-0002-0761-3489","orcid":"https://orcid.org/0000-0002-0761-3489","contributorId":34125,"corporation":false,"usgs":true,"family":"Grauch","given":"V.","email":"","middleInitial":"J. S.","affiliations":[],"preferred":false,"id":408840,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rodriguez, B. D.","contributorId":6084,"corporation":false,"usgs":true,"family":"Rodriguez","given":"B.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":408839,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bankey, V.","contributorId":65643,"corporation":false,"usgs":true,"family":"Bankey","given":"V.","affiliations":[],"preferred":false,"id":408842,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wooden, J. L.","contributorId":58678,"corporation":false,"usgs":true,"family":"Wooden","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":408841,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70026047,"text":"70026047 - 2003 - A comparison of measures of riverbed form for evaluating distributions of benthic fishes","interactions":[],"lastModifiedDate":"2016-10-12T14:57:06","indexId":"70026047","displayToPublicDate":"2003-01-01T00:00:00","publicationYear":"2003","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"A comparison of measures of riverbed form for evaluating distributions of benthic fishes","docAbstract":"A method to quantitatively characterize the bed forms of a large river and a preliminary test of the relationship between bed-form characteristics and catch per unit area of benthic fishes is presented. We used analog paper recordings of bathymetric data from the Missouri River and fish data collected from 1996 to 1998 at both the segment (???101-102-km) and macrohabitat (???10-1-100-km) spatial scales. Bed-form traces were transformed to digital data with image analysis software. The slope, mean residual, and SD of the residuals of the regression of depth versus distance along the bottom, as well as mean depth, were estimated for each trace. These four metrics were compared with sinuosity, fractal dimension, critical scale, and maximum mean angle for the same traces. Mean depth and sinuosity differed among segments and macrohabitats. Fractal-based measures of the relative depth of bottom troughs (critical scale) and smoothness (maximum mean angle) differed among segments. Statistics-based measures of the relative depth of bottom troughs (mean residual) and smoothness (SD of the residuals) differed among macrohabitats. Sites with shovelnose sturgeon Scaphirhynchus platorynchus were shallower and smoother than sites without shovelnose sturgeon. When compared with sites without sicklefin chub Macrhybopsis meeki, sites with sicklefin chub were shallower, had shallower troughs, and sloped more out of the flow of the river. Sites with sturgeon chub M. gelida were shallower, had shallower troughs, and were smoother than sites without sturgeon chub. Sites with and without channel catfish Ictalurus punctatus did not differ for any bed-form variables measured. Nonzero shovelnose sturgeon density increased with depth, whereas nonzero sturgeon chub density decreased with depth. Indices of bed-form structure demonstrated potential for describing the distribution and abundance of Missouri River benthic fishes. The observed fish patterns, though limited, provide valuable direction for future research into the habitat preferences of these fishes.","language":"English","publisher":"Taylor & Francis","doi":"10.1577/1548-8675(2003)023<0543:ACOMOR>2.0.CO;2","issn":"02755947","usgsCitation":"Wildhaber, M.L., Lamberson, P.J., and Galat, D.L., 2003, A comparison of measures of riverbed form for evaluating distributions of benthic fishes: North American Journal of Fisheries Management, v. 23, no. 2, p. 543-557, https://doi.org/10.1577/1548-8675(2003)023<0543:ACOMOR>2.0.CO;2.","productDescription":"15 p.","startPage":"543","endPage":"557","numberOfPages":"15","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"links":[{"id":234800,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208800,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/1548-8675(2003)023<0543:ACOMOR>2.0.CO;2"}],"volume":"23","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e36ce4b0c8380cd45fe4","contributors":{"authors":[{"text":"Wildhaber, Mark L. 0000-0002-6538-9083 mwildhaber@usgs.gov","orcid":"https://orcid.org/0000-0002-6538-9083","contributorId":1386,"corporation":false,"usgs":true,"family":"Wildhaber","given":"Mark","email":"mwildhaber@usgs.gov","middleInitial":"L.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":407693,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lamberson, Peter J.","contributorId":20932,"corporation":false,"usgs":true,"family":"Lamberson","given":"Peter","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":407691,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Galat, David L.","contributorId":13711,"corporation":false,"usgs":true,"family":"Galat","given":"David","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":407692,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
]}