{"pageNumber":"3144","pageRowStart":"78575","pageSize":"25","recordCount":184882,"records":[{"id":70022749,"text":"70022749 - 2001 - Freshwater fishes of Acadia National Park, Mount Desert Island, Maine","interactions":[],"lastModifiedDate":"2012-03-12T17:20:37","indexId":"70022749","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2898,"text":"Northeastern Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Freshwater fishes of Acadia National Park, Mount Desert Island, Maine","docAbstract":"A list of freshwater fishes is presented for Acadia National Park, Mount Desert Island, Maine, based on past survey records, published and unpublished reports, and recent comprehensive surveys within or bordering Park boundaries conducted in 1998 and 1999. Overall, 31 species of fishes have been recorded in freshwaters of the Park or those bordering Park boundaries; 28 of these are still present. Of those, 15 species are likely native to Mount Desert Island, and the indigenous status of one fish species is unknown. The most widely distributed species in lakes and ponds is the golden shiner, Notemigonus crysoleucas Mitchill (83% of ponds), while the most widely-distributed species in brooks is the brook trout, Salvelinus fontinalis Mitchill (56%).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Northeastern Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"10926194","usgsCitation":"Stone, J., Le, B., and Moring, J., 2001, Freshwater fishes of Acadia National Park, Mount Desert Island, Maine: Northeastern Naturalist, v. 8, no. 3, p. 311-318.","startPage":"311","endPage":"318","numberOfPages":"8","costCenters":[],"links":[{"id":233855,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"8","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a13e0e4b0c8380cd547fa","contributors":{"authors":[{"text":"Stone, J.","contributorId":91210,"corporation":false,"usgs":true,"family":"Stone","given":"J.","affiliations":[],"preferred":false,"id":394769,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Le, B.C.","contributorId":96456,"corporation":false,"usgs":true,"family":"Le","given":"B.C.","email":"","affiliations":[],"preferred":false,"id":394770,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Moring, J.R.","contributorId":29587,"corporation":false,"usgs":true,"family":"Moring","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":394768,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70022796,"text":"70022796 - 2001 - Finding disease-carrying mosquitoes from space","interactions":[],"lastModifiedDate":"2012-03-12T17:20:04","indexId":"70022796","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1829,"text":"Geotimes","active":true,"publicationSubtype":{"id":10}},"title":"Finding disease-carrying mosquitoes from space","docAbstract":"[No abstract available]","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geotimes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","issn":"00168556","usgsCitation":"Guptill, S., 2001, Finding disease-carrying mosquitoes from space: Geotimes, v. 46, no. 10, p. 26-27.","startPage":"26","endPage":"27","numberOfPages":"2","costCenters":[],"links":[{"id":233493,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a101be4b0c8380cd53b1a","contributors":{"authors":[{"text":"Guptill, S.C.","contributorId":84417,"corporation":false,"usgs":true,"family":"Guptill","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":394941,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70022750,"text":"70022750 - 2001 - Detection of buried targets using a new enhanced very early time electromagnetic (VETEM) prototype system","interactions":[],"lastModifiedDate":"2012-03-12T17:20:37","indexId":"70022750","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","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":"Detection of buried targets using a new enhanced very early time electromagnetic (VETEM) prototype system","docAbstract":"In this paper, numerical simulations of a new enhanced very early time electromagnetic (VETEM) prototype system are presented, where a horizontal transmitting loop and two horizontal receiving loops are used to detect buried targets, in which three loops share the same axis and the transmitter is located at the center of receivers. In the new VETEM system, the difference of signals from two receivers is taken to eliminate strong direct-signals from the transmitter and background clutter and furthermore to obtain a better SNR for buried targets. Because strong coupling exists between the transmitter and receivers, accurate analysis of the three-loop antenna system is required, for which a loop-tree basis function method has been utilized to overcome the low-frequency breakdown problem. In the analysis of scattering problem from buried targets, a conjugate gradient (CG) method with fast Fourier transform (FFT) is applied to solve the electric field integral equation. However, the convergence of such CG-FFT algorithm is extremely slow at very low frequencies. In order to increase the convergence rate, a frequency-hopping approach has been used. Finally, the primary, coupling, reflected, and scattered magnetic fields are evaluated at receiving loops to calculate the output electric current. Numerous simulation results are given to interpret the new VETEM system. Comparing with other single-transmitter-receiver systems, the new VETEM has better SNR and ability to reduce the clutter.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"IEEE Transactions on Geoscience and Remote Sensing","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1109/36.975004","issn":"01962892","usgsCitation":"Cui, T., Chew, W., Aydiner, A., Wright, D., and Smith, D., 2001, Detection of buried targets using a new enhanced very early time electromagnetic (VETEM) prototype system: IEEE Transactions on Geoscience and Remote Sensing, v. 39, no. 12, p. 2702-2712, https://doi.org/10.1109/36.975004.","startPage":"2702","endPage":"2712","numberOfPages":"11","costCenters":[],"links":[{"id":233856,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208244,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1109/36.975004"}],"volume":"39","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ff71e4b0c8380cd4f1b8","contributors":{"authors":[{"text":"Cui, T.J.","contributorId":72552,"corporation":false,"usgs":true,"family":"Cui","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":394773,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chew, W.C.","contributorId":19730,"corporation":false,"usgs":true,"family":"Chew","given":"W.C.","email":"","affiliations":[],"preferred":false,"id":394771,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Aydiner, A.A.","contributorId":76088,"corporation":false,"usgs":true,"family":"Aydiner","given":"A.A.","affiliations":[],"preferred":false,"id":394774,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Wright, D.L.","contributorId":88758,"corporation":false,"usgs":true,"family":"Wright","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":394775,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Smith, D.V.","contributorId":31143,"corporation":false,"usgs":true,"family":"Smith","given":"D.V.","email":"","affiliations":[],"preferred":false,"id":394772,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70022824,"text":"70022824 - 2001 - Evidence and characteristics of hydrolytic disproportionation of organic matter during metasomatic processes","interactions":[],"lastModifiedDate":"2012-03-12T17:20:06","indexId":"70022824","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Evidence and characteristics of hydrolytic disproportionation of organic matter during metasomatic processes","docAbstract":"Petroleum-geochemical analyses of carbonaceous regionally metamorphosed rocks, carbonaceous rocks from ore deposits, and alkalic plutonic rocks from diverse settings, demonstrated the presence of very low to moderately low concentrations of solvent-extractable organic matter, this observation in spite of the fact that some of these rocks were exposed to extremely high metamorphic temperatures. Biomarker and ??13C analyses established that the extractable organic matter originated as sedimentary-derived hydrocarbons. However, the chemistry of the extractable bitumen has been fundamentally transformed from that found in sediment bitumen and oils. Asphaltenes and resins, as defined in the normal petroleum-geochemical sense, are completely missing. The principal aromatic hydrocarbons present in oils and sediment bitumens (especially the methylated naphthalenes) are either in highly reduced concentrations or are missing altogether, Instead, aromatic hydrocarbons typical of sediment bitumens and oils are very minor, and a number of unidentified compounds and oxygen-bearing compounds are dominant. Relatively high concentrations of alkylated benzenes are typical. The polar \"resin\" fraction, eluted during column chromatography, is the principal compound group, by weight, being composed of six to eight dominant peaks present in all samples, despite the great geologic diversity of the samples. These, and other, observations suggest that a strong drive towards equilibrium exists in the \"bitumen.\" Gas chromatograms of the saturated hydrocarbons commonly have a pronounced hump in both the n-paraffins and naphthenes, centered near the C19 to C26 carbon numbers, and a ubiquitos minimum in the n-paraffin distribution near n-C12 to n-C14. Multiple considerations dictate that the bitumen in the samples is indigenous and did not originate from either surficial field contamination or from laboratory procedures. Our observations are consistent with the hydrolytic disproportion of organic matter (HDOM), in which water and organic matter, including hydrocarbons, easily exchange hydrogen or oxygen with one another under certain conditions (Helgeson et al., 1993). The process appears to take place via well-known organic-chemical redox reaction pathways and is most evident in open-fluid systems. The conclusion that HDOM took place in the analyzed samples, thus producing the chemistry of the extractable bitumen, is supported by numerous previously published organic-geochemical studies of metamorphic, volcanic, plutonic, and ore-deposit-related rocks by other investigators. HDOM is suggested as an unrecognized geologic agent of fundamental importance. The process appears to control major chemical reactions in diverse geologic environments including, but not limited to, petroleum geology and geochemistry, regional metamorphism, and base- and precious-metal ore deposition. Copyright ?? 2001 Elsevier Science Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geochimica et Cosmochimica Acta","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0016-7037(01)00762-1","issn":"00167037","usgsCitation":"Price, L., and Dewitt, E., 2001, Evidence and characteristics of hydrolytic disproportionation of organic matter during metasomatic processes: Geochimica et Cosmochimica Acta, v. 65, no. 21, p. 3791-3826, https://doi.org/10.1016/S0016-7037(01)00762-1.","startPage":"3791","endPage":"3826","numberOfPages":"36","costCenters":[],"links":[{"id":208009,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0016-7037(01)00762-1"},{"id":233354,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"65","issue":"21","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0d27e4b0c8380cd52e40","contributors":{"authors":[{"text":"Price, L.C.","contributorId":48575,"corporation":false,"usgs":true,"family":"Price","given":"L.C.","email":"","affiliations":[],"preferred":false,"id":395030,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Dewitt, E.","contributorId":108257,"corporation":false,"usgs":true,"family":"Dewitt","given":"E.","email":"","affiliations":[],"preferred":false,"id":395031,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023067,"text":"70023067 - 2001 - The New Madrid seismic zone: Capturing variability in seismic hazard analyses","interactions":[],"lastModifiedDate":"2022-12-23T17:37:21.310664","indexId":"70023067","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3372,"text":"Seismological Research Letters","onlineIssn":"1938-2057","printIssn":"0895-0695","active":true,"publicationSubtype":{"id":10}},"title":"The New Madrid seismic zone: Capturing variability in seismic hazard analyses","docAbstract":"<p>No abstract available.</p>","language":"English","publisher":"Seismological Society of America","doi":"10.1785/gssrl.72.6.664","issn":"00128287","usgsCitation":"Cramer, C., 2001, The New Madrid seismic zone: Capturing variability in seismic hazard analyses: Seismological Research Letters, v. 72, no. 6, p. 664-672, https://doi.org/10.1785/gssrl.72.6.664.","productDescription":"9 p.","startPage":"664","endPage":"672","costCenters":[],"links":[{"id":233660,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","otherGeospatial":"New Madrid Seismic Zone","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -92.90082640034876,\n              37.9122920114596\n            ],\n            [\n              -92.90082640034876,\n              34.988401286569015\n            ],\n            [\n              -86.38519847539389,\n              34.988401286569015\n            ],\n            [\n              -86.38519847539389,\n              37.9122920114596\n            ],\n            [\n              -92.90082640034876,\n              37.9122920114596\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"72","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba84ce4b08c986b321b2a","contributors":{"authors":[{"text":"Cramer, C.H.","contributorId":100012,"corporation":false,"usgs":true,"family":"Cramer","given":"C.H.","email":"","affiliations":[],"preferred":false,"id":396025,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70022999,"text":"70022999 - 2001 - Post-fire, rainfall intensity-peak discharge relations for three mountainous watersheds in the Western USA","interactions":[],"lastModifiedDate":"2017-01-24T11:20:49","indexId":"70022999","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Post-fire, rainfall intensity-peak discharge relations for three mountainous watersheds in the Western USA","docAbstract":"<p>Wildfire alters the hydrologic response of watersheds, including the peak discharges resulting from subsequent rainfall. Improving predictions of the magnitude of flooding that follows wildfire is needed because of the increase in human population at risk in the wildland-urban interface. Because this wildland-urban interface is typically in mountainous terrain, we investigated rainfall-runoff relations by measuring the maximum 30 min rainfall intensity and the unit-area peak discharge (peak discharge divided by the area burned) in three mountainous watersheds (17-26.8 km<sup>2</sup>) after a wildfire. We found rainfall-runoff relations that relate the unit-area peak discharges to the maximum 30 min rainfall intensities by a power law. These rainfall-runoff relations appear to have a threshold value for the maximum 30 min rainfall intensity (around 10 mm h<sup>-1</sup>) such that, above this threshold, the magnitude of the flood peaks increases more rapidly with increases in intensity. This rainfall intensity could be used to set threshold limits in rain gauges that are part of an early-warning flood system after wildfire. The maximum unit-area peak discharges from these three burned watersheds ranged from 3.2 to 50 m<sup>3</sup> s<sup>-1</sup> km<sup>-2</sup>. These values could provide initial estimates of the upper limits of runoff that can be used to predict floods after wildfires in mountainous terrain. Published in 2001 by John Wiley and Sons, Ltd.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.386","issn":"08856087","usgsCitation":"Moody, J.A., and Martin, D., 2001, Post-fire, rainfall intensity-peak discharge relations for three mountainous watersheds in the Western USA: Hydrological Processes, v. 15, no. 15, p. 2981-2993, https://doi.org/10.1002/hyp.386.","startPage":"2981","endPage":"2993","numberOfPages":"13","costCenters":[],"links":[{"id":233727,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208189,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.386"}],"volume":"15","issue":"15","noUsgsAuthors":false,"publicationDate":"2001-10-25","publicationStatus":"PW","scienceBaseUri":"505a7e64e4b0c8380cd7a4f9","contributors":{"authors":[{"text":"Moody, J. A.","contributorId":32930,"corporation":false,"usgs":true,"family":"Moody","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":395760,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Martin, D.A.","contributorId":61548,"corporation":false,"usgs":true,"family":"Martin","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":395761,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023068,"text":"70023068 - 2001 - Pesticides in the hydrologic system - What do we know and what's next?","interactions":[],"lastModifiedDate":"2012-03-12T17:20:37","indexId":"70023068","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"Pesticides in the hydrologic system - What do we know and what's next?","docAbstract":"Even though the occurrence and behaviour of pesticides in the environment have been studied for decades, water-quality managers and the public still demand more complete and consistent information, and there are many unanswered questions for environmental scientists. In many respects, the greatest potential for unintended adverse effects of pesticides is through contamination of the hydrologic system, which supports aquatic life and related food chains and is used for recreation, drinking water, and many other purposes. The movement of water is one of the primary mechanisms by which pesticides are transported from targeted application areas to other parts of the environment; thus, there is potential for movement into and through all components of the hydrologic system. Extensive reviews of existing information on pesticides in the hydrologic system, including the atmosphere (Majewski and Capel, 1995), ground water (Barbash and Resek, 1996), surface water (Larson et al., 1997), and fluvial sediments and aquatic biota (Nowell et al., 1999), uncovered volumes of useful information, but also noted critical information gaps. For example: (a) relatively few pesticides have been thoroughly studied, particularly transformation products; (b) most data have been collected for small-scale site and field studies in agricultural areas; (c) urban areas have received little attention for monitoring or research; (d) the geographic and temporal distributions of data collection have been highly uneven; and (e) comparing and synthesizing results from most studies is difficult because of inconsistent approaches to data collection and chemical analysis.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.501","issn":"08856087","usgsCitation":"Gilliom, R.J., 2001, Pesticides in the hydrologic system - What do we know and what's next?: Hydrological Processes, v. 15, no. 16, p. 3197-3201, https://doi.org/10.1002/hyp.501.","startPage":"3197","endPage":"3201","numberOfPages":"5","costCenters":[],"links":[{"id":233693,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208174,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.501"}],"volume":"15","issue":"16","noUsgsAuthors":false,"publicationDate":"2001-11-06","publicationStatus":"PW","scienceBaseUri":"505a776fe4b0c8380cd784c5","contributors":{"authors":[{"text":"Gilliom, R. J.","contributorId":60650,"corporation":false,"usgs":true,"family":"Gilliom","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":396026,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70023142,"text":"70023142 - 2001 - Antibody-producing cells correlated to body weight in juvenile chinook salmon (Oncorhynchus tshawytscha) acclimated to optimal and elevated temperatures","interactions":[],"lastModifiedDate":"2016-04-21T15:37:27","indexId":"70023142","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1653,"text":"Fish and Shellfish Immunology","active":true,"publicationSubtype":{"id":10}},"title":"Antibody-producing cells correlated to body weight in juvenile chinook salmon (Oncorhynchus tshawytscha) acclimated to optimal and elevated temperatures","docAbstract":"<p>The immune response of juvenile chinook salmon (Oncorhynchus tshawytscha) ranging in weight from approximately 10 to 55 g was compared when the fish were acclimated to either 13 or 21?? C. A haemolytic plaque assay was conducted to determine differences in the number of antibody-producing cells (APC) among fish of a similar age but different body weights. Regression analyses revealed significant increases in the number of APC with increasing body weight when fish were acclimated to either water temperature. These results emphasise the importance of standardising fish weight in immunological studies of salmonids before exploring the possible effects of acclimation temperatures. ?? 2001 Academic Press.</p>","language":"English","publisher":"Elsevier","doi":"10.1006/fsim.2001.0342","issn":"10504648","usgsCitation":"Harrahy, L., Schreck, C., and Maule, A., 2001, Antibody-producing cells correlated to body weight in juvenile chinook salmon (Oncorhynchus tshawytscha) acclimated to optimal and elevated temperatures: Fish and Shellfish Immunology, v. 11, no. 8, p. 653-659, https://doi.org/10.1006/fsim.2001.0342.","productDescription":"7 p.","startPage":"653","endPage":"659","numberOfPages":"7","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":233628,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208142,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1006/fsim.2001.0342"}],"volume":"11","issue":"8","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ec60e4b0c8380cd49233","contributors":{"authors":[{"text":"Harrahy, L.N.M.","contributorId":82502,"corporation":false,"usgs":true,"family":"Harrahy","given":"L.N.M.","email":"","affiliations":[],"preferred":false,"id":396461,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schreck, C.B.","contributorId":11977,"corporation":false,"usgs":true,"family":"Schreck","given":"C.B.","email":"","affiliations":[],"preferred":false,"id":396459,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Maule, A.G.","contributorId":45067,"corporation":false,"usgs":true,"family":"Maule","given":"A.G.","email":"","affiliations":[],"preferred":false,"id":396460,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70022967,"text":"70022967 - 2001 - A new lumbriculid genus and species from North America (Clitellata, Lumbriculidae)","interactions":[],"lastModifiedDate":"2012-03-12T17:20:40","indexId":"70022967","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"A new lumbriculid genus and species from North America (Clitellata, Lumbriculidae)","docAbstract":"Secubelmis limpida n. sp., n. gen., is described from Montana, U.S.A. The monotypic genus resembles the lumbriculid genera Rhynchelmis and Tatriella in having atria in X, spermathecae in VIII, and semi-prosoporous male ducts. It differs from Tatriella in having paired atria and spermathecae, and from Rhynchelmis in having petiolate atria. The single prostate gland is unique within the Lumbriculidae. The new species appears to have a restricted range in the northern Rocky Mountains.","largerWorkTitle":"Hydrobiologia","language":"English","doi":"10.1023/A:1013122817819","issn":"00188158","usgsCitation":"Fend, S., and Gustafson, D., 2001, A new lumbriculid genus and species from North America (Clitellata, Lumbriculidae), <i>in</i> Hydrobiologia, v. 463, p. 13-22, https://doi.org/10.1023/A:1013122817819.","startPage":"13","endPage":"22","numberOfPages":"10","costCenters":[],"links":[{"id":208219,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1023/A:1013122817819"},{"id":233800,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"463","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e4a5e4b0c8380cd467d8","contributors":{"authors":[{"text":"Fend, S.V. 0000-0002-4638-6602","orcid":"https://orcid.org/0000-0002-4638-6602","contributorId":99702,"corporation":false,"usgs":true,"family":"Fend","given":"S.V.","affiliations":[],"preferred":false,"id":395641,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gustafson, D.L.","contributorId":73379,"corporation":false,"usgs":true,"family":"Gustafson","given":"D.L.","email":"","affiliations":[],"preferred":false,"id":395640,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70022966,"text":"70022966 - 2001 - Statistical self-similarity of width function maxima with implications to floods","interactions":[],"lastModifiedDate":"2012-03-12T17:20:40","indexId":"70022966","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":664,"text":"Advances in Water Resources","active":true,"publicationSubtype":{"id":10}},"title":"Statistical self-similarity of width function maxima with implications to floods","docAbstract":"Recently a new theory of random self-similar river networks, called the RSN model, was introduced to explain empirical observations regarding the scaling properties of distributions of various topologic and geometric variables in natural basins. The RSN model predicts that such variables exhibit statistical simple scaling, when indexed by Horton-Strahler order. The average side tributary structure of RSN networks also exhibits Tokunaga-type self-similarity which is widely observed in nature. We examine the scaling structure of distributions of the maximum of the width function for RSNs for nested, complete Strahler basins by performing ensemble simulations. The maximum of the width function exhibits distributional simple scaling, when indexed by Horton-Strahler order, for both RSNs and natural river networks extracted from digital elevation models (DEMs). We also test a powerlaw relationship between Horton ratios for the maximum of the width function and drainage areas. These results represent first steps in formulating a comprehensive physical statistical theory of floods at multiple space-time scales for RSNs as discrete hierarchical branching structures. ?? 2001 Published by Elsevier Science Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Advances in Water Resources","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0309-1708(01)00030-6","issn":"03091708","usgsCitation":"Veitzer, S., and Gupta, V., 2001, Statistical self-similarity of width function maxima with implications to floods: Advances in Water Resources, v. 24, no. 9-10, p. 955-965, https://doi.org/10.1016/S0309-1708(01)00030-6.","startPage":"955","endPage":"965","numberOfPages":"11","costCenters":[],"links":[{"id":208218,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0309-1708(01)00030-6"},{"id":233799,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"9-10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b9744e4b08c986b31b9ad","contributors":{"authors":[{"text":"Veitzer, S.A.","contributorId":68931,"corporation":false,"usgs":true,"family":"Veitzer","given":"S.A.","email":"","affiliations":[],"preferred":false,"id":395639,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Gupta, V.K.","contributorId":35516,"corporation":false,"usgs":true,"family":"Gupta","given":"V.K.","email":"","affiliations":[],"preferred":false,"id":395638,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023082,"text":"70023082 - 2001 - Evidence for millennial-scale climate change during marine isotope stages 2 and 3 at Little Lake, Western Oregon, U.S.A.","interactions":[],"lastModifiedDate":"2012-03-12T17:20:40","indexId":"70023082","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3218,"text":"Quaternary Research","active":true,"publicationSubtype":{"id":10}},"title":"Evidence for millennial-scale climate change during marine isotope stages 2 and 3 at Little Lake, Western Oregon, U.S.A.","docAbstract":"Pollen and geochemical data from Little Lake, western Oregon, suggest several patterns of millennial-scale environmental change during marine isotope stage (MIS) 2 (14,100-27,600 cal yr B.P.) and the latter part of MIS 3 (27,600-42,500 cal yr B.P.). During MIS 3, a series of transitions between warm- and cold-adapted taxa indicate that temperatures oscillated by ca. 2??-4??C every 1000-3000 yr. Highs and lows in summer insolation during MIS 3 are generally associated with the warmest and coldest intervals. Warm periods at Little Lake correlate with warm sea-surface temperatures in the Santa Barbara Basin. Changes in the strength of the subtropical high and the jet stream may account for synchronous changes at the two sites. During MIS 2, shifts between mesic and xeric subalpine forests suggest changes in precipitation every 1000-3000 yr. Increases in Tsuga heterophylla pollen at 25,000 and 22,000 cal yr B.P. imply brief warmings. Minimum summer insolation and maximum global ice-volumes during MIS 2 correspond to cold and dry conditions. Fluctuations in precipitation at Little Lake do not correlate with changes in the Santa Barbara Basin and may be explained by variations in the strength of the glacial anticyclone and the position of the jet stream. ?? 2001 University of Washington.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Quaternary Research","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1006/qres.2001.2246","issn":"00335894","usgsCitation":"Grigg, L., Whitlock, C., and Dean, W., 2001, Evidence for millennial-scale climate change during marine isotope stages 2 and 3 at Little Lake, Western Oregon, U.S.A.: Quaternary Research, v. 56, no. 1, p. 10-22, https://doi.org/10.1006/qres.2001.2246.","startPage":"10","endPage":"22","numberOfPages":"13","costCenters":[],"links":[{"id":208255,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1006/qres.2001.2246"},{"id":233877,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"56","issue":"1","noUsgsAuthors":false,"publicationDate":"2017-01-20","publicationStatus":"PW","scienceBaseUri":"505a0d4be4b0c8380cd52f1d","contributors":{"authors":[{"text":"Grigg, L.D.","contributorId":82503,"corporation":false,"usgs":true,"family":"Grigg","given":"L.D.","email":"","affiliations":[],"preferred":false,"id":396074,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Whitlock, C.","contributorId":105836,"corporation":false,"usgs":true,"family":"Whitlock","given":"C.","email":"","affiliations":[],"preferred":false,"id":396076,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dean, W.E.","contributorId":97099,"corporation":false,"usgs":true,"family":"Dean","given":"W.E.","email":"","affiliations":[],"preferred":false,"id":396075,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70023037,"text":"70023037 - 2001 - Bioavailability of atrazine, pyrene and benzo[a]pyrene in European river waters","interactions":[],"lastModifiedDate":"2012-03-12T17:20:36","indexId":"70023037","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1226,"text":"Chemosphere","active":true,"publicationSubtype":{"id":10}},"title":"Bioavailability of atrazine, pyrene and benzo[a]pyrene in European river waters","docAbstract":"Thirteen river waters and one humic lake water were characterized. The effects of dissolved organic matter (DOM) on the bioavailability of atrazine, pyrene and benzo[a]pyrene (B[a]P) was evaluated. Binding of the chemicals by DOM was analyzed with the equilibrium dialysis technique. For each of the water samples, 24 h bioconcentration factors (BCFs) of the chemicals were measured in Daphnia magna. The relationship between DOM and other water characteristics (including conductivity, water hardness and pH), and bioavailability of the chemicals was studied by performing several statistical analyses, including multiple regression analyses, to determine how much of the variation of BCF values could be explained by the quantity and quality of DOM. The bioavailability of atrazine was not affected by DOM or any other water characteristics. Although equilibrium dialysis showed binding of pyrene to DOM, the bioavailability of pyrene was not significantly affected by DOM. The bioavailability of B[a]P was significantly affected by both the quality and quantity of DOM. Multiple regression analyses, using the quality (ABS270 and HbA%) and quantity of DOM as variables, explainedup to 70% of the variation in BCF of B[a]P in the waters studied. ?? 2001 Elsevier Science Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Chemosphere","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0045-6535(01)00038-8","issn":"00456535","usgsCitation":"Akkanen, J., Penttinen, S., Haitzer, M., and Kukkonen, J., 2001, Bioavailability of atrazine, pyrene and benzo[a]pyrene in European river waters: Chemosphere, v. 45, no. 4-5, p. 453-462, https://doi.org/10.1016/S0045-6535(01)00038-8.","startPage":"453","endPage":"462","numberOfPages":"10","costCenters":[],"links":[{"id":233764,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208205,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0045-6535(01)00038-8"}],"volume":"45","issue":"4-5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f13de4b0c8380cd4ab01","contributors":{"authors":[{"text":"Akkanen, J.","contributorId":52748,"corporation":false,"usgs":true,"family":"Akkanen","given":"J.","email":"","affiliations":[],"preferred":false,"id":395898,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Penttinen, S.","contributorId":56007,"corporation":false,"usgs":true,"family":"Penttinen","given":"S.","email":"","affiliations":[],"preferred":false,"id":395899,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Haitzer, M.","contributorId":94812,"corporation":false,"usgs":true,"family":"Haitzer","given":"M.","affiliations":[],"preferred":false,"id":395901,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kukkonen, J.V.K.","contributorId":74166,"corporation":false,"usgs":true,"family":"Kukkonen","given":"J.V.K.","email":"","affiliations":[],"preferred":false,"id":395900,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70023010,"text":"70023010 - 2001 - Climate regimes and water temperature changes in the Columbia River: bioenergetic implications for predators of juvenile salmon","interactions":[],"lastModifiedDate":"2016-04-21T16:35:24","indexId":"70023010","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1169,"text":"Canadian Journal of Fisheries and Aquatic Sciences","active":true,"publicationSubtype":{"id":10}},"title":"Climate regimes and water temperature changes in the Columbia River: bioenergetic implications for predators of juvenile salmon","docAbstract":"<p>We examined how climatic regime shifts may have affected predation rates on juvenile Pacific salmonids (Oncorhynchus spp.) by northern squawfish (Ptychocheilus oregonensis, also called northern pikeminnow), smallmouth bass (Micropterus dolomieu), and walleye (Stizostedion vitreum) in the Columbia River. During 1933-1996, oceanic, coastal, and freshwater indices of climate were highly correlated, and an index for the Columbia River Basin suggested that climate shifts may have occurred about 1946, 1958, 1969, and 1977. Summer water temperature varied as much as 2??C between climate periods. We used a bioenergetics model for northern squawfish, the most important piscivore, to predict that predation on salmonids would have been 26-31% higher during two periods with relatively warm spring-summer water temperatures (1933-1946, 1978-1996) than during an extremely cold period (1947-1958). Predicted predation rates of northern squawfish were 68-96% higher in the warmest year compared with the coldest year. Predation rates of smallmouth bass and walleye on juvenile salmonids varied among climate periods similar to rates predicted for northern squawfish. Climatic effects need to be understood in both freshwater and nearshore marine habitats, since growth rates of salmon populations are especially sensitive to mortality during early life stages.</p>","language":"English","publisher":"NRC Research Press","doi":"10.1139/cjfas-58-9-1831","issn":"0706652X","usgsCitation":"Petersen, J., and Kitchell, J., 2001, Climate regimes and water temperature changes in the Columbia River: bioenergetic implications for predators of juvenile salmon: Canadian Journal of Fisheries and Aquatic Sciences, v. 58, no. 9, p. 1831-1841, https://doi.org/10.1139/cjfas-58-9-1831.","productDescription":"11 p.","startPage":"1831","endPage":"1841","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":654,"text":"Western Fisheries Research Center","active":true,"usgs":true}],"links":[{"id":233906,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208271,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1139/cjfas-58-9-1831"}],"country":"United States; Canada","otherGeospatial":"Columbia River Basin","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -124.0576171875,\n              46.45299704748289\n            ],\n            [\n              -122.62939453125001,\n              46.90524554642923\n            ],\n            [\n              -121.28906250000001,\n              48.96579381461063\n            ],\n            [\n              -120.58593749999999,\n              49.52520834197442\n            ],\n            [\n              -120.10253906249999,\n              50.875311142200765\n            ],\n            [\n              -118.71826171875,\n              50.88917404890332\n            ],\n            [\n              -117.53173828125,\n              50.98609893339354\n            ],\n            [\n              -116.56494140625001,\n              50.331436330838834\n            ],\n            [\n              -115.53222656249999,\n              48.93693495409401\n            ],\n            [\n              -113.35693359375,\n              46.98025235521883\n            ],\n            [\n              -113.0712890625,\n              45.583289756006316\n            ],\n            [\n              -113.44482421875,\n              44.94924926661153\n            ],\n            [\n              -112.8955078125,\n              44.449467536006935\n            ],\n            [\n              -111.33544921874999,\n              44.63739123445585\n            ],\n            [\n              -110.21484375,\n              44.26093725039923\n            ],\n            [\n              -109.9951171875,\n              43.56447158721811\n            ],\n            [\n              -110.98388671874999,\n              42.58544425738491\n            ],\n            [\n              -112.17041015625,\n              42.293564192170095\n            ],\n            [\n              -113.3349609375,\n              42.032974332441405\n            ],\n            [\n              -114.12597656249999,\n              41.75492216766298\n            ],\n            [\n              -115.24658203125,\n              41.44272637767212\n            ],\n            [\n              -116.8505859375,\n              41.475660200278234\n            ],\n            [\n              -118.125,\n              42.553080288955826\n            ],\n            [\n              -119.33349609375,\n              43.644025847699496\n            ],\n            [\n              -121.06933593749999,\n              44.08758502824518\n            ],\n            [\n              -123.48632812499999,\n              43.88205730390537\n            ],\n            [\n              -123.77197265625,\n              44.15068115978091\n            ],\n            [\n              -123.59619140625001,\n              45.413876460821086\n            ],\n            [\n              -124.01367187499999,\n              45.99696161820381\n            ],\n            [\n              -124.0576171875,\n              46.45299704748289\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"58","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059f653e4b0c8380cd4c6c5","contributors":{"authors":[{"text":"Petersen, J.H.","contributorId":72154,"corporation":false,"usgs":true,"family":"Petersen","given":"J.H.","email":"","affiliations":[],"preferred":false,"id":395798,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kitchell, J.F.","contributorId":33259,"corporation":false,"usgs":true,"family":"Kitchell","given":"J.F.","email":"","affiliations":[],"preferred":false,"id":395797,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023178,"text":"70023178 - 2001 - Imaging of volcanic activity on Jupiter's moon Io by Galileo during the Galileo Europa Mission and the Galileo Millennium Mission","interactions":[],"lastModifiedDate":"2022-12-02T17:48:37.408527","indexId":"70023178","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","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 of volcanic activity on Jupiter's moon Io by Galileo during the Galileo Europa Mission and the Galileo Millennium Mission","docAbstract":"<div class=\"article-section__content en main\"><p>The Solid-State Imaging (SSI) instrument provided the first high- and medium-resolution views of Io as the Galileo spacecraft closed in on the volcanic body in late 1999 and early 2000. While each volcanic center has many unique features, the majority can be placed into one of two broad categories. The “Promethean” eruptions, typified by the volcanic center Prometheus, are characterized by long-lived steady eruptions producing a compound flow field emplaced in an insulating manner over a period of years to decades. In contrast, “Pillanian” eruptions are characterized by large pyroclastic deposits and short-lived but high effusion rate eruptions from fissures feeding open-channel or open-sheet flows. Both types of eruptions commonly have ∼100-km-tall, bright, SO<sub>2</sub>-rich plumes forming near the flow fronts and smaller deposits of red material that mark the vent for the silicate lavas.</p></div>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2000JE001383","issn":"01480227","usgsCitation":"Keszthelyi, L., McEwen, A.S., Phillips, C.B., Milazzo, M., Geissler, P., Turtle, E.P., Radebaugh, J., Williams, D., Simonelli, D., Breneman, H., Klaasen, K., Levanas, G., Denk, T., and Galileo SSI Team, 2001, Imaging of volcanic activity on Jupiter's moon Io by Galileo during the Galileo Europa Mission and the Galileo Millennium Mission: Journal of Geophysical Research E: Planets, v. 106, no. E12, p. 33025-33052, https://doi.org/10.1029/2000JE001383.","productDescription":"28 p.","startPage":"33025","endPage":"33052","costCenters":[],"links":[{"id":233629,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Io","volume":"106","issue":"E12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3884e4b0c8380cd615cc","contributors":{"authors":[{"text":"Keszthelyi, L.","contributorId":42691,"corporation":false,"usgs":true,"family":"Keszthelyi","given":"L.","affiliations":[],"preferred":false,"id":396635,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"McEwen, A. S.","contributorId":11317,"corporation":false,"usgs":true,"family":"McEwen","given":"A.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":396595,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Phillips, C. B.","contributorId":103811,"corporation":false,"usgs":true,"family":"Phillips","given":"C.","middleInitial":"B.","affiliations":[],"preferred":false,"id":396730,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Milazzo, M.","contributorId":74118,"corporation":false,"usgs":true,"family":"Milazzo","given":"M.","email":"","affiliations":[],"preferred":false,"id":396683,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Geissler, P.","contributorId":45662,"corporation":false,"usgs":true,"family":"Geissler","given":"P.","email":"","affiliations":[],"preferred":false,"id":396642,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Turtle, E. P.","contributorId":44281,"corporation":false,"usgs":false,"family":"Turtle","given":"E.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":396639,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Radebaugh, J.","contributorId":34639,"corporation":false,"usgs":false,"family":"Radebaugh","given":"J.","affiliations":[],"preferred":false,"id":396624,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Williams, D.A.","contributorId":98048,"corporation":false,"usgs":false,"family":"Williams","given":"D.A.","email":"","affiliations":[{"id":7114,"text":"Arizona State Unviersity","active":true,"usgs":false}],"preferred":false,"id":396721,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Simonelli, D.P.","contributorId":42373,"corporation":false,"usgs":true,"family":"Simonelli","given":"D.P.","email":"","affiliations":[],"preferred":false,"id":396634,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Breneman, H.H.","contributorId":13400,"corporation":false,"usgs":true,"family":"Breneman","given":"H.H.","email":"","affiliations":[],"preferred":false,"id":396602,"contributorType":{"id":1,"text":"Authors"},"rank":10},{"text":"Klaasen, K.P.","contributorId":56806,"corporation":false,"usgs":true,"family":"Klaasen","given":"K.P.","email":"","affiliations":[],"preferred":false,"id":396656,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Levanas, G.","contributorId":80042,"corporation":false,"usgs":true,"family":"Levanas","given":"G.","email":"","affiliations":[],"preferred":false,"id":396697,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Denk, T.","contributorId":65247,"corporation":false,"usgs":true,"family":"Denk","given":"T.","affiliations":[],"preferred":false,"id":396668,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Galileo SSI Team","contributorId":299582,"corporation":true,"usgs":false,"organization":"Galileo SSI Team","id":858232,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}}
,{"id":70023008,"text":"70023008 - 2001 - Exotic plant invasion alters nitrogen dynamics in an arid grassland","interactions":[],"lastModifiedDate":"2022-11-08T19:48:52.688815","indexId":"70023008","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1450,"text":"Ecological Applications","active":true,"publicationSubtype":{"id":10}},"title":"Exotic plant invasion alters nitrogen dynamics in an arid grassland","docAbstract":"<p>The introduction of nonnative plant species may decrease ecosystem stability by altering the availability of nitrogen (N) for plant growth. Invasive species can impact N availability by changing litter quantity and quality, rates of N<sub>2</sub>-fixation, or rates of N loss. We quantified the effects of invasion by the annual grass <i>Bromus tectorum</i> on N cycling in an arid grassland on the Colorado Plateau (USA). The invasion occurred in 1994 in two community types in an undisturbed grassland. This natural experiment allowed us to measure the immediate responses following invasion without the confounding effects of previous disturbance. Litter biomass and the C:N and lignin:N ratios were measured to determine the effects on litter dynamics. Long-term soil incubations (415 d) were used to measure potential microbial respiration and net N mineralization. Plant-available N was quantified for two years in situ with ion-exchange resin bags, and potential changes in rates of gaseous N loss were estimated by measuring denitrification enzyme activity. <i>Bromus</i> invasion significantly increased litter biomass, and <i>Bromus</i> litter had significantly greater C:N and lignin:N ratios than did native species. The change in litter quantity and chemistry decreased potential rates of net N mineralization in sites with <i>Bromus</i> by decreasing nitrogen available for microbial activity. Inorganic N was 50% lower on <i>Hilaria</i> sites with <i>Bromus</i> during the spring of 1997, but no differences were observed during 1998. The contrasting differences between years are likely due to moisture availability; spring precipitation was 15% greater than average during 1997, but 52% below average during spring of 1998. <i>Bromus</i> may cause a short-term decrease in N loss by decreasing substrate availability and denitrification enzyme activity, but N loss is likely to be greater in invaded sites in the long term because of increased fire frequency and greater N volatilization during fire. We hypothesize that the introduction of <i>Bromus</i> in conjunction with land-use change has established a series of positive feedbacks that will decrease N availability and alter species composition.</p>","language":"English","publisher":"Wiley","doi":"10.1890/1051-0761(2001)011[1301:EPIAND]2.0.CO;2","usgsCitation":"Evans, R., Rimer, R., Sperry, L., and Belnap, J., 2001, Exotic plant invasion alters nitrogen dynamics in an arid grassland: Ecological Applications, v. 11, no. 5, p. 1301-1310, https://doi.org/10.1890/1051-0761(2001)011[1301:EPIAND]2.0.CO;2.","productDescription":"10 p.","startPage":"1301","endPage":"1310","costCenters":[{"id":290,"text":"Forest and Rangeland Ecosystem Science Center","active":false,"usgs":true},{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":233873,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"11","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0db0e4b0c8380cd53147","contributors":{"authors":[{"text":"Evans, R.D.","contributorId":48735,"corporation":false,"usgs":true,"family":"Evans","given":"R.D.","email":"","affiliations":[],"preferred":false,"id":395791,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rimer, R.","contributorId":96457,"corporation":false,"usgs":true,"family":"Rimer","given":"R.","email":"","affiliations":[],"preferred":false,"id":395792,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sperry, L.","contributorId":18147,"corporation":false,"usgs":true,"family":"Sperry","given":"L.","email":"","affiliations":[],"preferred":false,"id":395789,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Belnap, Jayne 0000-0001-7471-2279 jayne_belnap@usgs.gov","orcid":"https://orcid.org/0000-0001-7471-2279","contributorId":1332,"corporation":false,"usgs":true,"family":"Belnap","given":"Jayne","email":"jayne_belnap@usgs.gov","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":395790,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70023086,"text":"70023086 - 2001 - Geologic structures related to New Madrid earthquakes near Memphis, Tennessee, based on gravity and magnetic interpretations","interactions":[],"lastModifiedDate":"2012-03-12T17:20:08","indexId":"70023086","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","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":"Geologic structures related to New Madrid earthquakes near Memphis, Tennessee, based on gravity and magnetic interpretations","docAbstract":"New inversions of gravity and magnetic data in the region north of memphis. Tennessee, and south of latitude 36?? define boundaries of regional structures and igneous complexes in the upper crust. Microseismicity patterns near interpreted boundaries suggest that igneous complexes influence the locations of microseismicity. A weak seismicity cluster occurs near one intrusion (Covington pluton), at the intersection of the southwest margin of the Missouri batholith and the southeast margin of the Reelfoot rift. A narrow seismicity trend along the Reelfoot rift axis becomes diffuse near a second intrusion (Osceola intrusive complex) and changes direction to an area along the northwest flank of the intrusion. The axial seismicity trend also contains a tight cluster of earthquakes located just outside the Osceola intrusive complex. The mechanical explanation of the two seismicity patterns is uncertain, but the first cluster may be caused by stress concentration due to the high elastic stiffness and strength of the Covington intrusion. The spatially changing seismicity pattern near the Osceola complex may be caused by the preceding factors plus interaction with faulting along the rift axis. The axial seismicity strand itself is one of several connected and interacting active strands that may produce stress concentrations at strand ends and junctions. The microseismicity clusters at the peripheries of the two intrusions lead us to conclude that these stress concentrations or stressed volumes may be locations of future moderate to large earthquakes near Memphis. Published by Elsevier Science B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Engineering Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/S0013-7952(01)00056-4","issn":"00137952","usgsCitation":"Hildenbrand, T., Stuart, W., and Talwani, P., 2001, Geologic structures related to New Madrid earthquakes near Memphis, Tennessee, based on gravity and magnetic interpretations: Engineering Geology, v. 62, no. 1-3, p. 105-121, https://doi.org/10.1016/S0013-7952(01)00056-4.","startPage":"105","endPage":"121","numberOfPages":"17","costCenters":[],"links":[{"id":208015,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/S0013-7952(01)00056-4"},{"id":233369,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"62","issue":"1-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a21eee4b0c8380cd56bf6","contributors":{"authors":[{"text":"Hildenbrand, T.G.","contributorId":83892,"corporation":false,"usgs":true,"family":"Hildenbrand","given":"T.G.","email":"","affiliations":[],"preferred":false,"id":396085,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stuart, W.D.","contributorId":65865,"corporation":false,"usgs":true,"family":"Stuart","given":"W.D.","email":"","affiliations":[],"preferred":false,"id":396084,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Talwani, P.","contributorId":101420,"corporation":false,"usgs":true,"family":"Talwani","given":"P.","affiliations":[],"preferred":false,"id":396086,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70046630,"text":"70046630 - 2001 - Humboldt River main stem, Nevada","interactions":[],"lastModifiedDate":"2013-06-17T15:03:04","indexId":"70046630","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":6,"text":"USGS Unnumbered Series"},"title":"Humboldt River main stem, Nevada","docAbstract":"This data set contains the main stem of the Humboldt River as defined by Humboldt Project personnel of the U.S. Geological Survey Nevada District, 2001.  The data set was digitized on screen using digital orthophoto quadrangles from 1994.","language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","doi":"10.3133/70046630","usgsCitation":"Warmath, E., and Medina, R.L., 2001, Humboldt River main stem, Nevada (Version 1.0), Dataset, https://doi.org/10.3133/70046630.","productDescription":"Dataset","onlineOnly":"Y","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":273854,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/usgs_thumb.jpg"},{"id":273853,"type":{"id":16,"text":"Metadata"},"url":"https://water.usgs.gov/GIS/metadata/usgswrd/XML/hydmain_hum.xml"}],"country":"United States","state":"Nevada","otherGeospatial":"Humboldt River","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -118.48910048,40.04854653 ], [ -118.48910048,41.0676875 ], [ -115.24805961,41.0676875 ], [ -115.24805961,40.04854653 ], [ -118.48910048,40.04854653 ] ] ] } } ] }","edition":"Version 1.0","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"51c02febe4b0ee1529ed3cea","contributors":{"authors":[{"text":"Warmath, Eric","contributorId":34808,"corporation":false,"usgs":true,"family":"Warmath","given":"Eric","email":"","affiliations":[],"preferred":false,"id":479903,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Medina, Rose L. 0000-0002-3463-7224 rlmedina@usgs.gov","orcid":"https://orcid.org/0000-0002-3463-7224","contributorId":4378,"corporation":false,"usgs":true,"family":"Medina","given":"Rose","email":"rlmedina@usgs.gov","middleInitial":"L.","affiliations":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true}],"preferred":true,"id":479902,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70023087,"text":"70023087 - 2001 - Choosing between atmospheric pressure chemical ionization and electrospray ionization interfaces for the HPLC/MS analysis of pesticides","interactions":[],"lastModifiedDate":"2018-11-30T06:52:10","indexId":"70023087","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":761,"text":"Analytical Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Choosing between atmospheric pressure chemical ionization and electrospray ionization interfaces for the HPLC/MS analysis of pesticides","docAbstract":"An evaluation of over 75 pesticides by high-performance liquid chromatography/mass spectrometry (HPLC/MS) clearly shows that different classes of pesticides are more sensitive using either atmospheric pressure chemical ionization (APCI) or electrospray ionization (ESI). For example, neutral and basic pesticides (phenylureas, triazines) are more sensitive using APCI (especially positive ion). While cationic and anionic herbicides (bipyridylium ions, sulfonic acids) are more sensitive using ESI (especially negative ion). These data are expressed graphically in a figure called an ionization-continuum diagram, which shows that protonation in the gas phase (proton affinity) and polarity in solution, expressed as proton addition or subtraction (pKa), is useful in selecting APCI or ESI. Furthermore, sodium adduct formation commonly occurs using positive ion ESI but not using positive ion APCI, which reflects the different mechanisms of ionization and strengthens the usefulness of the ionization-continuum diagram. The data also show that the concept of \"wrong-way around\" ESI (the sensitivity of acidic pesticides in an acidic mobile phase) is a useful modification of simple pKa theory for mobile-phase selection. Finally, this finding is used to enhance the chromatographic separation of oxanilic and sulfonic acid herbicides while maintaining good sensitivity in LC/MS using ESI negative.","language":"English","doi":"10.1021/ac010506f","issn":"00032700","usgsCitation":"Thurman, E., Ferrer, I., and Barcelo, D., 2001, Choosing between atmospheric pressure chemical ionization and electrospray ionization interfaces for the HPLC/MS analysis of pesticides: Analytical Chemistry, v. 73, no. 22, p. 5441-5449, https://doi.org/10.1021/ac010506f.","productDescription":"9 p.","startPage":"5441","endPage":"5449","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":233370,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":208016,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/ac010506f"}],"volume":"73","issue":"22","noUsgsAuthors":false,"publicationDate":"2001-10-09","publicationStatus":"PW","scienceBaseUri":"5059f5d7e4b0c8380cd4c45e","contributors":{"authors":[{"text":"Thurman, E.M.","contributorId":102864,"corporation":false,"usgs":true,"family":"Thurman","given":"E.M.","affiliations":[],"preferred":false,"id":396089,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ferrer, I.","contributorId":97260,"corporation":false,"usgs":true,"family":"Ferrer","given":"I.","email":"","affiliations":[],"preferred":false,"id":396088,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Barcelo, D.","contributorId":24107,"corporation":false,"usgs":true,"family":"Barcelo","given":"D.","affiliations":[],"preferred":false,"id":396087,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70022964,"text":"70022964 - 2001 - Differentiating nonpoint sources of deisopropylatrazine in surface water using discrimination diagrams","interactions":[],"lastModifiedDate":"2022-10-26T17:33:54.024941","indexId":"70022964","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Differentiating nonpoint sources of deisopropylatrazine in surface water using discrimination diagrams","docAbstract":"<p>Pesticide degradates account for a significant portion of the pesticide load in surface water. Because pesticides with similar structures may degrade to the same degradate, it is important to distinguish between different sources of parent compounds that have different regulatory and environmental implications. A discrimination diagram, which is a sample plot of chemical data that differentiates between different parent compounds, was used for the first time to distinguish whether sources other than atrazine (6-chloro-<i>N</i><span>&nbsp;</span><sup>2</sup>-ethyl-<i>N</i><span>&nbsp;</span><sup>4</sup>-isopropyl-1,3,5-triazine-2,4-diamine) contributed the chlorinated degradate, deisopropylatrazine (DIA; 6-chloro-<i>N</i>-ethyl-1,3,5-triazine-2,4-diamine) to the Iroquois and Delaware Rivers. The concentration ratio of deisopropylatrazine to deethylatrazine [6-chloro-<i>N</i>-(1-methylethyl)-1,3,5-triazine-2,4-diamine], called the D<sup>2</sup>R, was used to discriminate atrazine as a source of DIA from other parent sources, such as cyanazine (2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropionitrile) and simazine (6-chloro-<i>N</i>,<i>N</i>′-diethyl-1,3,5-triazine-2,4-diamine). The ratio of atrazine to cyanazine (ACR) used in conjunction with the D<sup>2</sup>R showed that after atrazine, cyanazine was the main contributor of DIA in surface water. The D<sup>2</sup>R also showed that cyanazine, and to a much lesser extent simazine, contributed a considerable amount (∼40%) of the DIA that was transported during the flood of the Mississippi River in 1993. The D<sup>2</sup>R may continue to be a useful discriminator in determining changes in the nonpoint sources of DIA in surface water as cyanazine is currently being removed from the market.</p>","language":"English","publisher":"Wiley","doi":"10.2134/jeq2001.3051836x","issn":"00472425","usgsCitation":"Meyer, M.T., Thurman, E., and Goolsby, D.A., 2001, Differentiating nonpoint sources of deisopropylatrazine in surface water using discrimination diagrams: Journal of Environmental Quality, v. 30, no. 5, p. 1836-1843, https://doi.org/10.2134/jeq2001.3051836x.","productDescription":"8 p.","startPage":"1836","endPage":"1843","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":233760,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Kansas","otherGeospatial":"Kansas River Valley Experimental Farm","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -95.85715045658709,\n              39.094386865596505\n            ],\n            [\n              -95.8574939283393,\n              39.057857149790436\n            ],\n            [\n              -95.84581588877556,\n              39.05625687599337\n            ],\n            [\n              -95.82761188592619,\n              39.05065563210067\n            ],\n            [\n              -95.80975135482903,\n              39.05038889511985\n            ],\n            [\n              -95.80253844804022,\n              39.05252276276147\n            ],\n            [\n              -95.7575436485451,\n              39.053856397296755\n            ],\n            [\n              -95.75033074175565,\n              39.0557234433349\n            ],\n            [\n              -95.74243089146307,\n              39.061590980940736\n            ],\n            [\n              -95.73109632365092,\n              39.06639133084025\n            ],\n            [\n              -95.72972243664336,\n              39.088255460555786\n            ],\n            [\n              -95.72697466262885,\n              39.09092135433383\n            ],\n            [\n              -95.744835193726,\n              39.09038818363953\n            ],\n            [\n              -95.75067421350788,\n              39.09198768363015\n            ],\n            [\n              -95.7606348943118,\n              39.09012159678113\n            ],\n            [\n              -95.78124319942413,\n              39.09412029385351\n            ],\n            [\n              -95.85715045658709,\n              39.094386865596505\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"30","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0105e4b0c8380cd4fa53","contributors":{"authors":[{"text":"Meyer, M. T.","contributorId":92279,"corporation":false,"usgs":true,"family":"Meyer","given":"M.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":395632,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Thurman, E.M.","contributorId":102864,"corporation":false,"usgs":true,"family":"Thurman","given":"E.M.","affiliations":[],"preferred":false,"id":395633,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goolsby, D. A.","contributorId":50508,"corporation":false,"usgs":true,"family":"Goolsby","given":"D.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":395631,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70023090,"text":"70023090 - 2001 - The landing of the NEAR-Shoemaker spacecraft on asteroid 433 Eros","interactions":[],"lastModifiedDate":"2012-03-12T17:20:07","indexId":"70023090","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2840,"text":"Nature","active":true,"publicationSubtype":{"id":10}},"title":"The landing of the NEAR-Shoemaker spacecraft on asteroid 433 Eros","docAbstract":"The NEAR-Shoemaker spacecraft was designed to provide a comprehensive characterization of the S-type asteroid 433 Eros (refs 1-3), an irregularly shaped body with approximate dimensions of 34 ?? 13 ?? 13 km. Following the completion of its year-long investigation, the mission was terminated with a controlled descent to its surface, in order to provide extremely high resolution images. Here we report the results of the descent on 12 February 2001, during which 70 images were obtained. The landing area is marked by a paucity of small craters and an abundance of 'ejecta blocks'. The properties and distribution of ejecta blocks are discussed in a companion paper. The last sequence of images reveals a transition from the blocky surface to a smooth area, which we interpret as a 'pond'. Properties of the 'ponds' are discussed in a second companion paper. The closest image, from an altitude of 129 m, shows the interior of a 100-m-diameter crater at 1-cm resolution.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Nature","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1038/35096507","issn":"00280836","usgsCitation":"Veverka, J., Farquhar, B., Robinson, M., Thomas, P., Murchie, S., Harch, A., Antreasian, P., Chesley, S., Miller, J., Owen, W., Williams, B., Yeomans, D., Dunham, D., Heyler, G., Holdridge, M., Nelson, R., Whittenburg, K., Ray, J.C., Carcich, B., Cheng, A., Chapman, C., Bell, J., Bell, M., Bussey, B., Clark, B., Domingue, D., Gaffey, M., Hawkins, E., Izenberg, N., Joseph, J., Kirk, R., Lucey, P., Malin, M., McFadden, L., Merline, W., Peterson, C., Prockter, L., Warren, J., and Wellnitz, D., 2001, The landing of the NEAR-Shoemaker spacecraft on asteroid 433 Eros: Nature, v. 413, no. 6854, p. 390-393, https://doi.org/10.1038/35096507.","startPage":"390","endPage":"393","numberOfPages":"4","costCenters":[],"links":[{"id":208053,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1038/35096507"},{"id":233438,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"413","issue":"6854","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bad7ae4b08c986b323c37","contributors":{"authors":[{"text":"Veverka, J.","contributorId":71689,"corporation":false,"usgs":true,"family":"Veverka","given":"J.","email":"","affiliations":[],"preferred":false,"id":396130,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Farquhar, B.","contributorId":42107,"corporation":false,"usgs":true,"family":"Farquhar","given":"B.","email":"","affiliations":[],"preferred":false,"id":396117,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Robinson, M.","contributorId":50272,"corporation":false,"usgs":true,"family":"Robinson","given":"M.","affiliations":[],"preferred":false,"id":396119,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Thomas, P.","contributorId":59185,"corporation":false,"usgs":true,"family":"Thomas","given":"P.","affiliations":[],"preferred":false,"id":396123,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Murchie, S.","contributorId":16584,"corporation":false,"usgs":true,"family":"Murchie","given":"S.","email":"","affiliations":[],"preferred":false,"id":396105,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Harch, A.","contributorId":106377,"corporation":false,"usgs":true,"family":"Harch","given":"A.","email":"","affiliations":[],"preferred":false,"id":396137,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Antreasian, P.G.","contributorId":11901,"corporation":false,"usgs":true,"family":"Antreasian","given":"P.G.","email":"","affiliations":[],"preferred":false,"id":396103,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Chesley, S.R.","contributorId":24654,"corporation":false,"usgs":true,"family":"Chesley","given":"S.R.","email":"","affiliations":[],"preferred":false,"id":396110,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Miller, J.K.","contributorId":66136,"corporation":false,"usgs":true,"family":"Miller","given":"J.K.","email":"","affiliations":[],"preferred":false,"id":396126,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Owen, W.M. 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,{"id":70023012,"text":"70023012 - 2001 - Infrasound and the avian navigational map","interactions":[],"lastModifiedDate":"2012-03-12T17:20:39","indexId":"70023012","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2397,"text":"Journal of Navigation","active":true,"publicationSubtype":{"id":10}},"title":"Infrasound and the avian navigational map","docAbstract":"Birds can accurately navigate over hundreds to thousands of kilometres, and use celestial and magnetic compass senses to orient their flight. How birds determine their location in order to select the correct homeward bearing (map sense) remains controversial, and has been attributed to their olfactory or magnetic senses. Pigeons can hear infrasound down to 0??05 Hz, and an acoustic avian map is proposed consisting of infrasonic cues radiated from steep-sided topographic features. The source of these infrasonic signals is microseisms continuously generated by interfering oceanic waves. Atmospheric processes affecting the infrasonic map cues can explain perplexing experimental results from pigeon releases. Moreover, four recent disrupted pigeon races in Europe and the north-eastern USA intersected infrasonic shock waves from the Concorde supersonic transport. Having an acoustic map might also allow clock-shifted birds to test their homeward progress and select between their magnetic and solar compasses.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Navigation","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1017/S037346330100145X","issn":"03734633","usgsCitation":"Hagstrum, J., 2001, Infrasound and the avian navigational map: Journal of Navigation, v. 54, no. 3, p. 377-391, https://doi.org/10.1017/S037346330100145X.","startPage":"377","endPage":"391","numberOfPages":"15","costCenters":[],"links":[{"id":479011,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://jeb.biologists.org/cgi/content/short/203/7/1103","text":"External Repository"},{"id":208273,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1017/S037346330100145X"},{"id":233908,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"54","issue":"3","noUsgsAuthors":false,"publicationDate":"2001-10-02","publicationStatus":"PW","scienceBaseUri":"505a3bc9e4b0c8380cd62836","contributors":{"authors":[{"text":"Hagstrum, J.T.","contributorId":75922,"corporation":false,"usgs":true,"family":"Hagstrum","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":395801,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":1003577,"text":"1003577 - 2001 - National Wildlife Health Center's Quarterly Mortality Report","interactions":[],"lastModifiedDate":"2012-02-02T00:04:09","indexId":"1003577","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3499,"text":"Supplement to the Journal of Wildlife Diseases","active":true,"publicationSubtype":{"id":10}},"title":"National Wildlife Health Center's Quarterly Mortality Report","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Supplement to the Journal of Wildlife Diseases","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Converse, K.A., and Schrader, A., 2001, National Wildlife Health Center's Quarterly Mortality Report: Supplement to the Journal of Wildlife Diseases, v. 37, no. 1, 6 p.","productDescription":"6 p.","numberOfPages":"6","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":129672,"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":"4f4e4b01e4b07f02db6984cd","contributors":{"authors":[{"text":"Converse, K. A.","contributorId":81436,"corporation":false,"usgs":true,"family":"Converse","given":"K.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":313574,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schrader, A.","contributorId":104435,"corporation":false,"usgs":true,"family":"Schrader","given":"A.","email":"","affiliations":[],"preferred":false,"id":313575,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":1003576,"text":"1003576 - 2001 - National Wildlife Health Center's Quarterly Mortality Report","interactions":[],"lastModifiedDate":"2018-01-02T15:27:36","indexId":"1003576","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3499,"text":"Supplement to the Journal of Wildlife Diseases","active":true,"publicationSubtype":{"id":10}},"title":"National Wildlife Health Center's Quarterly Mortality Report","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Supplement to the Journal of Wildlife Diseases","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","usgsCitation":"Miller, K.J., Converse, K., Glaser, L., and Schrader, A., 2001, National Wildlife Health Center's Quarterly Mortality Report: Supplement to the Journal of Wildlife Diseases, v. 37, no. 2, 3 p.","productDescription":"3 p.","numberOfPages":"3","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"links":[{"id":129671,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -180.17578125,\n              17.14079039331665\n            ],\n            [\n              -180.17578125,\n              72.71190310803662\n            ],\n            [\n              -65.7421875,\n              72.71190310803662\n            ],\n            [\n              -65.7421875,\n              17.14079039331665\n            ],\n            [\n              -180.17578125,\n              17.14079039331665\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"37","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"4f4e4b01e4b07f02db6984c7","contributors":{"authors":[{"text":"Miller, Kimberli J.G. 0000-0002-7947-0894","orcid":"https://orcid.org/0000-0002-7947-0894","contributorId":81447,"corporation":false,"usgs":true,"family":"Miller","given":"Kimberli","email":"","middleInitial":"J.G.","affiliations":[{"id":456,"text":"National Wildlife Health Center","active":true,"usgs":true}],"preferred":true,"id":313572,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Converse, K.","contributorId":40157,"corporation":false,"usgs":true,"family":"Converse","given":"K.","affiliations":[],"preferred":false,"id":313570,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Glaser, L.","contributorId":81051,"corporation":false,"usgs":true,"family":"Glaser","given":"L.","email":"","affiliations":[],"preferred":false,"id":313571,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schrader, A.","contributorId":104435,"corporation":false,"usgs":true,"family":"Schrader","given":"A.","email":"","affiliations":[],"preferred":false,"id":313573,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70023091,"text":"70023091 - 2001 - Geomorphologic evidence for liquid water","interactions":[],"lastModifiedDate":"2012-03-12T17:20:07","indexId":"70023091","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Geomorphologic evidence for liquid water","docAbstract":"Besides Earth, Mars is the only planet with a record of resurfacing processes and environmental circumstances that indicate the past operation of a hydrologic cycle. However the present-day conditions on Mars are far apart of supporting liquid water on the surface. Although the large-scale morphology of the Martian channels and valleys show remarkable similarities with fluid-eroded features on Earth, there are major differences in their size, small-scale morphology, inner channel structure and source regions indicating that the erosion on Mars has its own characteristic genesis and evolution. The different landforms related to fluvial, glacial and periglacial activities, their relations with volcanism, and the chronology of water-related processes, are presented.","largerWorkTitle":"Space Science Reviews","language":"English","doi":"10.1023/A:1011913809715","issn":"00386308","usgsCitation":"Masson, P., Carr, M.H., Costard, F., Greeley, R., Hauber, E., and Jaumann, R., 2001, Geomorphologic evidence for liquid water, <i>in</i> Space Science Reviews, v. 96, no. 1-4, p. 333-364, https://doi.org/10.1023/A:1011913809715.","startPage":"333","endPage":"364","numberOfPages":"32","costCenters":[],"links":[{"id":208054,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1023/A:1011913809715"},{"id":233439,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a279de4b0c8380cd59a4a","contributors":{"authors":[{"text":"Masson, P.","contributorId":21318,"corporation":false,"usgs":true,"family":"Masson","given":"P.","email":"","affiliations":[],"preferred":false,"id":396140,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Carr, M. H.","contributorId":84727,"corporation":false,"usgs":true,"family":"Carr","given":"M.","email":"","middleInitial":"H.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":false,"id":396144,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Costard, F.","contributorId":61214,"corporation":false,"usgs":true,"family":"Costard","given":"F.","email":"","affiliations":[],"preferred":false,"id":396141,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Greeley, R.","contributorId":6538,"corporation":false,"usgs":true,"family":"Greeley","given":"R.","email":"","affiliations":[],"preferred":false,"id":396139,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hauber, E.","contributorId":81659,"corporation":false,"usgs":true,"family":"Hauber","given":"E.","affiliations":[],"preferred":false,"id":396143,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jaumann, R.","contributorId":81232,"corporation":false,"usgs":false,"family":"Jaumann","given":"R.","email":"","affiliations":[],"preferred":false,"id":396142,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70023092,"text":"70023092 - 2001 - P-wave velocity structure of the uppermost mantle beneath Hawaii from traveltime tomography","interactions":[],"lastModifiedDate":"2012-03-12T17:20:07","indexId":"70023092","displayToPublicDate":"2001-01-01T00:00:00","publicationYear":"2001","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":"P-wave velocity structure of the uppermost mantle beneath Hawaii from traveltime tomography","docAbstract":"We examine the P-wave velocity structure beneath the island of Hawaii using P-wave residuals from teleseismic earthquakes recorded by the Hawaiian Volcano Observatory seismic network. The station geometry and distribution of events makes it possible to image the velocity structure between ~ 40 and 100 km depth with a lateral resolution of ~ 15 km and a vertical resolution of ~ 30 km. For depths between 40 and 80 km, P-wave velocities are up to 5 per cent slower in a broad elongated region trending SE-NW that underlies the island between the two lines defined by the volcanic loci. No direct correlation between the magnitude of the lithospheric anomaly and the current level of volcanic activity is apparent, but the slow region is broadened at ~ 19.8??N and narrow beneath Kilauea. In the case of the occanic lithosphere beneath Hawaii, slow seismic velocities are likely to be related to magma transport from the top of the melting zone at the base of the lithosphere to the surface. Thermal modelling shows that the broad elongated low-velocity zone cannot be explained in terms of conductive heating by one primary conduit per volcano but that more complicated melt pathways must exist.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysical Journal International","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1046/j.1365-246X.2001.00480.x","issn":"0956540X","usgsCitation":"Tilmann, F., Benz, H., Priestley, K., and Okubo, P.G., 2001, P-wave velocity structure of the uppermost mantle beneath Hawaii from traveltime tomography: Geophysical Journal International, v. 146, no. 3, p. 594-606, https://doi.org/10.1046/j.1365-246X.2001.00480.x.","startPage":"594","endPage":"606","numberOfPages":"13","costCenters":[],"links":[{"id":478946,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1046/j.1365-246x.2001.00480.x","text":"Publisher Index Page"},{"id":208055,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1046/j.1365-246X.2001.00480.x"},{"id":233440,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"146","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a731be4b0c8380cd76e73","contributors":{"authors":[{"text":"Tilmann, F.J.","contributorId":75305,"corporation":false,"usgs":true,"family":"Tilmann","given":"F.J.","email":"","affiliations":[],"preferred":false,"id":396147,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Benz, H.M.","contributorId":21594,"corporation":false,"usgs":true,"family":"Benz","given":"H.M.","email":"","affiliations":[],"preferred":false,"id":396145,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Priestley, K.F.","contributorId":64426,"corporation":false,"usgs":true,"family":"Priestley","given":"K.F.","email":"","affiliations":[],"preferred":false,"id":396146,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Okubo, P. G. 0000-0002-0381-6051","orcid":"https://orcid.org/0000-0002-0381-6051","contributorId":95899,"corporation":false,"usgs":true,"family":"Okubo","given":"P.","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":396148,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
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