{"pageNumber":"960","pageRowStart":"23975","pageSize":"25","recordCount":68937,"records":[{"id":70030035,"text":"70030035 - 2007 - A coupled remote sensing and simplified surface energy balance approach to estimate actual evapotranspiration from irrigated fields","interactions":[],"lastModifiedDate":"2015-08-27T14:17:08","indexId":"70030035","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3380,"text":"Sensors","active":true,"publicationSubtype":{"id":10}},"title":"A coupled remote sensing and simplified surface energy balance approach to estimate actual evapotranspiration from irrigated fields","docAbstract":"<p>Accurate crop performance monitoring and production estimation are critical for timely assessment of the food balance of several countries in the world. Since 2001, the Famine Early Warning Systems Network (FEWS NET) has been monitoring crop performance and relative production using satellite-derived data and simulation models in Africa, Central America, and Afghanistan where ground-based monitoring is limited because of a scarcity of weather stations. The commonly used crop monitoring models are based on a crop water-balance algorithm with inputs from satellite-derived rainfall estimates. These models are useful to monitor rainfed agriculture, but they are ineffective for irrigated areas. This study focused on Afghanistan, where over 80 percent of agricultural production comes from irrigated lands. We developed and implemented a Simplified Surface Energy Balance (SSEB) model to monitor and assess the performance of irrigated agriculture in Afghanistan using a combination of 1-km thermal data and 250m Normalized Difference Vegetation Index (NDVI) data, both from the Moderate Resolution Imaging Spectroradiometer (MODIS) sensor. We estimated seasonal actual evapotranspiration (ETa) over a period of six years (2000-2005) for two major irrigated river basins in Afghanistan, the Kabul and the Helmand, by analyzing up to 19 cloud-free thermal and NDVI images from each year. These seasonal ETa estimates were used as relative indicators of year-to-year production magnitude differences. The temporal water-use pattern of the two irrigated basins was indicative of the cropping patterns specific to each region. Our results were comparable to field reports and to estimates based on watershed-wide crop water-balance model results. For example, both methods found that the 2003 seasonal ETa was the highest of all six years. The method also captured water management scenarios where a unique year-to-year variability was identified in addition to water-use differences between upstream and downstream basins. A major advantage of the energy-balance approach is that it can be used to quantify spatial extent of irrigated fields and their water-use dynamics without reference to source of water as opposed to a water-balance model which requires knowledge of both the magnitude and temporal distribution of rainfall and irrigation applied to fields. ?? 2007 by MDPI.</p>","language":"English","publisher":"MDPI","doi":"10.3390/s7060979","issn":"14243210","usgsCitation":"Senay, G., Budde, M., Verdin, J., and Melesse, A.M., 2007, A coupled remote sensing and simplified surface energy balance approach to estimate actual evapotranspiration from irrigated fields: Sensors, v. 7, no. 6, p. 979-1000, https://doi.org/10.3390/s7060979.","startPage":"979","endPage":"1000","numberOfPages":"22","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":477111,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.3390/s7060979","text":"Publisher Index Page"},{"id":240256,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"7","issue":"6","noUsgsAuthors":false,"publicationDate":"2007-06-15","publicationStatus":"PW","scienceBaseUri":"5059e39ee4b0c8380cd46129","contributors":{"authors":[{"text":"Senay, G.B. 0000-0002-8810-8539","orcid":"https://orcid.org/0000-0002-8810-8539","contributorId":17741,"corporation":false,"usgs":true,"family":"Senay","given":"G.B.","affiliations":[],"preferred":false,"id":425409,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Budde, Michael 0000-0002-9098-2751","orcid":"https://orcid.org/0000-0002-9098-2751","contributorId":43572,"corporation":false,"usgs":true,"family":"Budde","given":"Michael","affiliations":[],"preferred":false,"id":425411,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Verdin, J. P. 0000-0003-0238-9657","orcid":"https://orcid.org/0000-0003-0238-9657","contributorId":33033,"corporation":false,"usgs":true,"family":"Verdin","given":"J. P.","affiliations":[],"preferred":false,"id":425410,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Melesse, Assefa M.","contributorId":45044,"corporation":false,"usgs":false,"family":"Melesse","given":"Assefa","email":"","middleInitial":"M.","affiliations":[{"id":7003,"text":"Deprtment of Earth & Environmental ECS 339, Florida Interational University","active":true,"usgs":false}],"preferred":false,"id":425412,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030030,"text":"70030030 - 2007 - Using a coupled eco-hydrodynamic model to predict habitat for target species following dam removal","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70030030","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1454,"text":"Ecological Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Using a coupled eco-hydrodynamic model to predict habitat for target species following dam removal","docAbstract":"A habitat suitability index (HSI) model was developed for a water quality sensitive fish (Greater Redhorse) and macroinvertebrate (Plecoptera) species to determine the restoration success of the St. John Dam removal for the Sandusky River (Ohio). An ArcGIS?? model was created for pre- and post-dam removal scenarios. Inputs to the HSI model consist of substrate distributions from river surveys, and water level and velocity time series, outputs from a hydrodynamic model. The ArcGIS?? model predicted habitat suitability indices at 45 river cross-sections in the hydrodynamic model. The model was programmed to produce polygon layers, using graphical user interfaces that were displayed in the ArcGIS?? environment. The results of the model clearly show an increase of habitat suitability from pre- to post-dam removal periods and in the former reservoir. The change in suitability of the model is attributed mostly to the change in depth in the river following the dam removal for both the fish and invertebrate species. The results of the invertebrate model followed the same positive trend as species enumerations from the river basin. ?? 2007 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ecological Engineering","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.ecoleng.2006.11.006","issn":"09258574","usgsCitation":"Tomsic, C., Granata, T., Murphy, R., and Livchak, C., 2007, Using a coupled eco-hydrodynamic model to predict habitat for target species following dam removal: Ecological Engineering, v. 30, no. 3, p. 215-230, https://doi.org/10.1016/j.ecoleng.2006.11.006.","startPage":"215","endPage":"230","numberOfPages":"16","costCenters":[],"links":[{"id":213102,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.ecoleng.2006.11.006"},{"id":240693,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"30","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bc024e4b08c986b329f5a","contributors":{"authors":[{"text":"Tomsic, C.A.","contributorId":56857,"corporation":false,"usgs":true,"family":"Tomsic","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":425395,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Granata, T.C.","contributorId":80085,"corporation":false,"usgs":true,"family":"Granata","given":"T.C.","email":"","affiliations":[],"preferred":false,"id":425396,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Murphy, R.P.","contributorId":53169,"corporation":false,"usgs":true,"family":"Murphy","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":425394,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Livchak, C.J.","contributorId":46769,"corporation":false,"usgs":true,"family":"Livchak","given":"C.J.","email":"","affiliations":[],"preferred":false,"id":425393,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030029,"text":"70030029 - 2007 - Effect of bedrock permeability on subsurface stormflow and the water balance of a trenched hillslope at the Panola Mountain Research Watershed, Georgia, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70030029","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","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":"Effect of bedrock permeability on subsurface stormflow and the water balance of a trenched hillslope at the Panola Mountain Research Watershed, Georgia, USA","docAbstract":"The effect of bedrock permeability on subsurface stormflow initiation and the hillslope water balance is poorly understood. Previous hillslope hydrological studies at the Panola Mountain Research Watershed (PMRW), Georgia, USA, have assumed that the bedrock underlying the trenched hillslope is effectively impermeable. This paper presents a series of sprinkling experiments where we test the bedrock impermeability hypothesis at the PMRW. Specifically, we quantify the bedrock permeability effects on hillslope subsurface stormflow generation and the hillslope water balance at the PMRW. Five sprinkling experiments were performed by applying 882-1676 mm of rainfall over a ???5.5 m ?? 12 m area on the lower hillslope during ???8 days. In addition to water input and output captured at the trench, we measured transpiration in 14 trees on the slope to close the water balance. Of the 193 mm day-1 applied during the later part of the sprinkling experiments when soil moisture changes were small, < 14 mm day-1 was collected at the trench and <4 mm day-1 was transpired by the trees, with residual bedrock leakage of > 175 mm day-1 (91%). Bedrock moisture was measured at three locations downslope of the water collection system in the trench. Bedrock moisture responded quickly to precipitation in early spring. Peak tracer breakthrough in response to natural precipitation in the bedrock downslope from the trench was delayed only 2 days relative to peak tracer arrival in subsurface stormflow at the trench. Leakage to bedrock influences subsurface stormflow at the storm time-scale and also the water balance of the hillslope. This has important implications for the age and geochemistry of the water and thus how one models this hillslope and watershed. Copyright ?? 2006 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.6265","issn":"08856087","usgsCitation":"Tromp-van, M.H., Peters, N., and McDonnell, J.J., 2007, Effect of bedrock permeability on subsurface stormflow and the water balance of a trenched hillslope at the Panola Mountain Research Watershed, Georgia, USA: Hydrological Processes, v. 21, no. 6, p. 750-769, https://doi.org/10.1002/hyp.6265.","startPage":"750","endPage":"769","numberOfPages":"20","costCenters":[],"links":[{"id":213101,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.6265"},{"id":240692,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"21","issue":"6","noUsgsAuthors":false,"publicationDate":"2006-09-22","publicationStatus":"PW","scienceBaseUri":"505a05c2e4b0c8380cd50f43","contributors":{"authors":[{"text":"Tromp-van, Meerveld H. J. H. J.","contributorId":54710,"corporation":false,"usgs":true,"family":"Tromp-van","given":"Meerveld","suffix":"H. J.","email":"","middleInitial":"H. J.","affiliations":[],"preferred":false,"id":425391,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peters, N.E.","contributorId":33332,"corporation":false,"usgs":true,"family":"Peters","given":"N.E.","email":"","affiliations":[],"preferred":false,"id":425390,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"McDonnell, Jeffery J. 0000-0002-3880-3162","orcid":"https://orcid.org/0000-0002-3880-3162","contributorId":62723,"corporation":false,"usgs":false,"family":"McDonnell","given":"Jeffery","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":425392,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030027,"text":"70030027 - 2007 - Geohydrologic assessment of fractured crystalline bedrock on the southern part of Manhattan, New York, through the use of advanced borehole geophysical methods","interactions":[],"lastModifiedDate":"2019-10-17T10:07:52","indexId":"70030027","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2323,"text":"Journal of Geophysics and Engineering","active":true,"publicationSubtype":{"id":10}},"title":"Geohydrologic assessment of fractured crystalline bedrock on the southern part of Manhattan, New York, through the use of advanced borehole geophysical methods","docAbstract":"<p><span>Advanced borehole-geophysical methods were used to assess the geohydrology of fractured crystalline bedrock in 31 of 64 boreholes on the southern part of Manhattan Island, NY in preparation of the construction of a new water tunnel. The study area is located in a highly urbanized part of New York City. The boreholes penetrated gneiss, schist, and other crystalline bedrock that has an overall southwest-to northwest-dipping foliation. Most of the fractures intersected are nearly horizontal or have moderate- to high-angle northwest or eastward dip azimuths. Heat-pulse flowmeter logs obtained under nonpumping (ambient) and pumping conditions, together with other geophysical logs, delineated transmissive fracture zones in each borehole. Water-level and flowmeter data suggest the fractured-rock ground-water-flow system is interconnected. The 60 MHz directional borehole-radar logs delineated the location and orientation of several radar reflectors that did not intersect the projection of the borehole. A total of 53 faults intersected by the boreholes have mean orientation populations of N12°W, 66°W and N11°W, 70°E. A total of 77 transmissive fractures delineated using the heat-pulse flowmeter have mean orientations of N11°E, 14°SE (majority) and N23°E, 57°NW (minority). The transmissivity of the bedrock boreholes ranged from 0.7 to 870 feet squared (ft</span><sup>2</sup><span>) per day (0.07 to 81 metres squared (m</span><sup>2</sup><span>) per day).</span></p>","language":"English","publisher":"Oxford Academic","doi":"10.1088/1742-2132/4/3/S02","issn":"17422132","usgsCitation":"Stumm, F., Chu, A., Joesten, P., and Lane, J., 2007, Geohydrologic assessment of fractured crystalline bedrock on the southern part of Manhattan, New York, through the use of advanced borehole geophysical methods: Journal of Geophysics and Engineering, v. 4, no. 3, p. 245-252, https://doi.org/10.1088/1742-2132/4/3/S02.","productDescription":"8 p.","startPage":"245","endPage":"252","numberOfPages":"8","costCenters":[{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"links":[{"id":240627,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New York","city":"Manhattan","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -74.02450561523438,\n              40.69938133866613\n            ],\n            [\n              -73.93386840820312,\n              40.69938133866613\n            ],\n            [\n              -73.93386840820312,\n              40.79977641109269\n            ],\n            [\n              -74.02450561523438,\n              40.79977641109269\n            ],\n            [\n              -74.02450561523438,\n              40.69938133866613\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"4","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-08-31","publicationStatus":"PW","scienceBaseUri":"505a17a0e4b0c8380cd55578","contributors":{"authors":[{"text":"Stumm, F.","contributorId":33928,"corporation":false,"usgs":true,"family":"Stumm","given":"F.","email":"","affiliations":[],"preferred":false,"id":425382,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Chu, A.","contributorId":81697,"corporation":false,"usgs":true,"family":"Chu","given":"A.","email":"","affiliations":[],"preferred":false,"id":425385,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Joesten, P. K.","contributorId":62818,"corporation":false,"usgs":true,"family":"Joesten","given":"P. K.","affiliations":[],"preferred":false,"id":425383,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lane, J.W. Jr.","contributorId":66723,"corporation":false,"usgs":true,"family":"Lane","given":"J.W.","suffix":"Jr.","email":"","affiliations":[],"preferred":false,"id":425384,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030024,"text":"70030024 - 2007 - Dominant factors in controlling marine gas pools in South China","interactions":[],"lastModifiedDate":"2012-03-12T17:21:07","indexId":"70030024","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1707,"text":"Frontiers of Earth Science in China","active":true,"publicationSubtype":{"id":10}},"title":"Dominant factors in controlling marine gas pools in South China","docAbstract":"In marine strata from Sinian to Middle Triassic in South China, there develop four sets of regional and six sets of local source rocks, and ten sets of reservoir rocks. The occurrence of four main formation periods in association with five main reconstruction periods, results in a secondary origin for the most marine gas pools in South China. To improve the understanding of marine gas pools in South China with severely deformed geological background, the dominant control factors are discussed in this paper. The fluid sources, including the gas cracked from crude oil, the gas dissolved in water, the gas of inorganic origin, hydrocarbons generated during the second phase, and the mixed pool fluid source, were the most significant control factors of the types and the development stage of pools. The period of the pool formation and the reconstruction controlled the pool evolution and the distribution on a regional scale. Owing to the multiple periods of the pool formation and the reconstruction, the distribution of marine gas pools was complex both in space and in time, and the gas in the pools is heterogeneous. Pool elements, such as preservation conditions, traps and migration paths, and reservoir rocks and facies, also served as important control factors to marine gas pools in South China. Especially, the preservation conditions played a key role in maintaining marine oil and gas accumulations on a regional or local scale. According to several dominant control factors of a pool, the pool-controlling model can be constructed. As an example, the pool-controlling model of Sinian gas pool in Weiyuan gas field in Sichuan basin was summed up. ?? Higher Education Press and Springer-Verlag 2007.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Frontiers of Earth Science in China","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s11707-007-0060-z","issn":"16737385","usgsCitation":"Xu, S., and Watney, W., 2007, Dominant factors in controlling marine gas pools in South China: Frontiers of Earth Science in China, v. 1, no. 4, p. 491-497, https://doi.org/10.1007/s11707-007-0060-z.","startPage":"491","endPage":"497","numberOfPages":"7","costCenters":[],"links":[{"id":213012,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s11707-007-0060-z"},{"id":240592,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"1","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a03a6e4b0c8380cd505b3","contributors":{"authors":[{"text":"Xu, S.","contributorId":84954,"corporation":false,"usgs":true,"family":"Xu","given":"S.","email":"","affiliations":[],"preferred":false,"id":425376,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Watney, W.L.","contributorId":43087,"corporation":false,"usgs":true,"family":"Watney","given":"W.L.","email":"","affiliations":[],"preferred":false,"id":425375,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030022,"text":"70030022 - 2007 - Forces on stationary particles in near-bed turbulent flows","interactions":[],"lastModifiedDate":"2012-03-12T17:21:07","indexId":"70030022","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2318,"text":"Journal of Geophysical Research F: Earth Surface","active":true,"publicationSubtype":{"id":10}},"title":"Forces on stationary particles in near-bed turbulent flows","docAbstract":"In natural flows, bed sediment particles are entrained and moved by the fluctuating forces, such as lift and drag, exerted by the overlying flow on the particles. To develop a better understanding of these forces and the relation of the forces to the local flow, the downstream and vertical components of force on near-bed fixed particles and of fluid velocity above or in front of them were measured synchronously at turbulence-resolving frequencies (200 or 500 Hz) in a laboratory flume. Measurements were made for a spherical test particle fixed at various heights above a smooth bed, above a smooth bed downstream of a downstream-facing step, and in a gravel bed of similarly sized particles as well as for a cubical test particle and 7 natural particles above a smooth bed. Horizontal force was well correlated with downstream velocity and not correlated with vertical velocity or vertical momentum flux. The standard drag formula worked well to predict the horizontal force, but the required value of the drag coefficient was significantly higher than generally used to model bed load motion. For the spheres, cubes, and natural particles, average drag coefficients were found to be 0.76, 1.36, and 0.91, respectively. For comparison, the drag coefficient for a sphere settling in still water at similar particle Reynolds numbers is only about 0.4. The variability of the horizontal force relative to its mean was strongly increased by the presence of the step and the gravel bed. Peak deviations were about 30% of the mean force for the sphere over the smooth bed, about twice the mean with the step, and 4 times it for the sphere protruding roughly half its diameter above the gravel bed. Vertical force correlated poorly with downstream velocity, vertical velocity, and vertical momentum flux whether measured over or ahead of the test particle. Typical formulas for shear-induced lift based on Bernoulli's principle poorly predict the vertical forces on near-bed particles. The measurements suggest that particle-scale pressure variations associated with turbulence are significant in the particle momentum balance. Copyright 2007 by the American Geophysical Union.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research F: Earth Surface","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1029/2006JF000536","issn":"01480227","usgsCitation":"Schmeeckle, M., Nelson, J.M., and Shreve, R., 2007, Forces on stationary particles in near-bed turbulent flows: Journal of Geophysical Research F: Earth Surface, v. 112, no. 2, https://doi.org/10.1029/2006JF000536.","costCenters":[],"links":[{"id":212986,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2006JF000536"},{"id":240562,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"112","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-04-11","publicationStatus":"PW","scienceBaseUri":"505a130ce4b0c8380cd544d2","contributors":{"authors":[{"text":"Schmeeckle, M.W.","contributorId":7461,"corporation":false,"usgs":true,"family":"Schmeeckle","given":"M.W.","affiliations":[],"preferred":false,"id":425368,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nelson, J. M.","contributorId":68687,"corporation":false,"usgs":true,"family":"Nelson","given":"J.","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":425369,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Shreve, R.L.","contributorId":105536,"corporation":false,"usgs":true,"family":"Shreve","given":"R.L.","affiliations":[],"preferred":false,"id":425370,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030018,"text":"70030018 - 2007 - A catastrophic meltwater flood event and the formation of the Hudson Shelf Valley","interactions":[],"lastModifiedDate":"2017-09-13T12:26:30","indexId":"70030018","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2996,"text":"Palaeogeography, Palaeoclimatology, Palaeoecology","printIssn":"0031-0182","active":true,"publicationSubtype":{"id":10}},"title":"A catastrophic meltwater flood event and the formation of the Hudson Shelf Valley","docAbstract":"The Hudson Shelf Valley (HSV) is the largest physiographic feature on the U.S. mid-Atlantic continental shelf. The 150-km long valley is the submerged extension of the ancestral Hudson River Valley that connects to the Hudson Canyon. Unlike other incised valleys on the mid-Atlantic shelf, it has not been infilled with sediment during the Holocene. Analyses of multibeam bathymetry, acoustic backscatter intensity, and high-resolution seismic reflection profiles reveal morphologic and stratigraphic evidence for a catastrophic meltwater flood event that formed the modern HSV. The valley and its distal deposits record a discrete flood event that carved 15-m high banks, formed a 120-km<sup>2</sup> field of 3- to 6-m high bedforms, and deposited a subaqueous delta on the outer shelf. The HSV is inferred to have been carved initially by precipitation and meltwater runoff during the advance of the Laurentide Ice Sheet, and later by the drainage of early proglacial lakes through stable spillways. A flood resulting from the failure of the terminal moraine dam at the Narrows between Staten Island and Long Island, New York, allowed glacial lakes in the Hudson and Ontario basins to drain across the continental shelf. Water level changes in the Hudson River basin associated with the catastrophic drainage of glacial lakes Iroquois, Vermont, and Albany around 11,450 <sup>14</sup>C year BP (∼ 13,350 cal BP) may have precipitated dam failure at the Narrows. This 3200 km<sup>3</sup> discharge of freshwater entered the North Atlantic proximal to the Gulf Stream and may have affected thermohaline circulation at the onset of the Intra-Allerød Cold Period. Based on bedform characteristics and fluvial morphology in the HSV, the maximum freshwater flux during the flood event is estimated to be ∼ 0.46 Sv for a duration of ∼ 80 days.","language":"English","publisher":"Elsevier","doi":"10.1016/j.palaeo.2006.10.030","issn":"00310182","usgsCitation":"Thieler, E.R., Butman, B., Schwab, W.C., Allison, M.A., Driscoll, N.W., Donnelly, J.P., and Uchupi, E., 2007, A catastrophic meltwater flood event and the formation of the Hudson Shelf Valley: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 246, no. 1, p. 120-136, https://doi.org/10.1016/j.palaeo.2006.10.030.","productDescription":"17 p.","startPage":"120","endPage":"136","costCenters":[{"id":186,"text":"Coastal and Marine Geology Program","active":true,"usgs":true},{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"links":[{"id":476974,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://hdl.handle.net/1912/1630","text":"External Repository"},{"id":240499,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Jersey, New York","otherGeospatial":"Hudson Shelf Valley","volume":"246","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059e33be4b0c8380cd45ec8","contributors":{"authors":[{"text":"Thieler, E. Robert 0000-0003-4311-9717 rthieler@usgs.gov","orcid":"https://orcid.org/0000-0003-4311-9717","contributorId":2488,"corporation":false,"usgs":true,"family":"Thieler","given":"E.","email":"rthieler@usgs.gov","middleInitial":"Robert","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":425357,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Butman, Bradford 0000-0002-4174-2073 bbutman@usgs.gov","orcid":"https://orcid.org/0000-0002-4174-2073","contributorId":943,"corporation":false,"usgs":true,"family":"Butman","given":"Bradford","email":"bbutman@usgs.gov","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":425356,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Schwab, William C. 0000-0001-9274-5154 bschwab@usgs.gov","orcid":"https://orcid.org/0000-0001-9274-5154","contributorId":417,"corporation":false,"usgs":true,"family":"Schwab","given":"William","email":"bschwab@usgs.gov","middleInitial":"C.","affiliations":[{"id":678,"text":"Woods Hole Coastal and Marine Science Center","active":true,"usgs":true}],"preferred":true,"id":425355,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Allison, Mead A.","contributorId":81750,"corporation":false,"usgs":true,"family":"Allison","given":"Mead","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":425353,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Driscoll, Neal W.","contributorId":63266,"corporation":false,"usgs":true,"family":"Driscoll","given":"Neal","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":425352,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Donnelly, John P. jpdonnelly@usgs.gov","contributorId":4461,"corporation":false,"usgs":true,"family":"Donnelly","given":"John","email":"jpdonnelly@usgs.gov","middleInitial":"P.","affiliations":[],"preferred":true,"id":425354,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Uchupi, Elazar","contributorId":79853,"corporation":false,"usgs":true,"family":"Uchupi","given":"Elazar","email":"","affiliations":[],"preferred":false,"id":425351,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70030016,"text":"70030016 - 2007 - Big lake records preserved in a little lake's sediment: An example from Silver Lake, Michigan, USA","interactions":[],"lastModifiedDate":"2016-05-06T11:33:51","indexId":"70030016","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2411,"text":"Journal of Paleolimnology","active":true,"publicationSubtype":{"id":10}},"title":"Big lake records preserved in a little lake's sediment: An example from Silver Lake, Michigan, USA","docAbstract":"<p><span>We reconstruct postglacial lake-level history within the Lake Michigan basin using soil stratigraphy, ground-penetrating radar (GPR), sedimentology and&nbsp;</span><span>14</span><span>C data from the Silver Lake basin, which lies adjacent to Lake Michigan. Stratigraphy in nine vibracores recovered from the floor of Silver Lake appears to reflect fluctuation of water levels in the Lake Michigan basin. Aeolian activity within the study area from 3,000&nbsp;years (cal yr. B.P.) to the present was inferred from analysis of buried soils, an aerial photograph sequence, and GPR. Sediments in and around Silver Lake appear to contain a paleoenvironmental record that spans the entire post-glacial history of the Lake Michigan basin. We suggest that (1) a pre-Nipissing rather than a Nipissing barrier separated Silver Lake basin from the Lake Michigan basin, (2) that the Nipissing transgression elevated the water table in the Silver Lake basin about 6,500&nbsp;cal yr. B.P., resulting in reestablishment of a lake within the basin, and (3) that recent dune migration into Silver Lake is associated with levels of Lake Michigan.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s10933-006-9053-2","issn":"09212728","usgsCitation":"Fisher, T., Loope, W., Pierce, W., and Jol, H., 2007, Big lake records preserved in a little lake's sediment: An example from Silver Lake, Michigan, USA: Journal of Paleolimnology, v. 37, no. 3, p. 365-382, https://doi.org/10.1007/s10933-006-9053-2.","productDescription":"18 p.","startPage":"365","endPage":"382","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":240464,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212899,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10933-006-9053-2"}],"volume":"37","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-01-11","publicationStatus":"PW","scienceBaseUri":"5059f128e4b0c8380cd4aa86","contributors":{"authors":[{"text":"Fisher, T.G.","contributorId":67754,"corporation":false,"usgs":true,"family":"Fisher","given":"T.G.","email":"","affiliations":[],"preferred":false,"id":425333,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Loope, W.L.","contributorId":22280,"corporation":false,"usgs":true,"family":"Loope","given":"W.L.","email":"","affiliations":[],"preferred":false,"id":425332,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pierce, W.","contributorId":17493,"corporation":false,"usgs":true,"family":"Pierce","given":"W.","affiliations":[],"preferred":false,"id":425331,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jol, H.M.","contributorId":77717,"corporation":false,"usgs":true,"family":"Jol","given":"H.M.","affiliations":[],"preferred":false,"id":425334,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030012,"text":"70030012 - 2007 - Impact of recent extreme Arizona storms","interactions":[],"lastModifiedDate":"2021-05-26T17:36:54.838746","indexId":"70030012","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1578,"text":"Eos, Transactions, American Geophysical Union","onlineIssn":"2324-9250","printIssn":"0096-394","active":true,"publicationSubtype":{"id":10}},"title":"Impact of recent extreme Arizona storms","docAbstract":"<p><span>Heavy rainfall on 27&ndash;31 July 2006 led to record flooding and triggered an historically unprecedented number of debris flows in the Santa Catalina Mountains north of Tucson, Ariz. The U.S. Geological Survey (USGS) documented record floods along four watercourses in the Tucson basin, and at least 250 hillslope failures spawned damaging debris flows in an area where less than 10 small debris flows had been documented in the past 25 years. At least 18 debris flows destroyed infrastructure in the heavily used Sabino Canyon Recreation Area (http://wwwpaztcn.wr.usgs.gov/rsch_highlight/articles/20061 l.html). In four adjacent canyons, debris flows reached the heads of alluvial fans at the boundary of the Tucson metropolitan area. While landuse planners in southeastern Arizona evaluate the potential threat of this previously little recognized hazard to residents along the mountain front, an interdisciplinary group of scientists has collaborated to better understand this extreme event.</span></p>","language":"English","publisher":"Wiley","doi":"10.1029/2007EO170003","usgsCitation":"Magirl, C., Webb, R.H., Griffiths, P.G., Schaffner, M., Shoemaker, C., Pytlak, E., Yatheendradas, S., Lyon, S.W., Troch, P.A., Desilets, S.L., Goodrich, D., Unkrich, C., Youberg, A., and Pearthree, P., 2007, Impact of recent extreme Arizona storms: Eos, Transactions, American Geophysical Union, v. 88, no. 17, p. 191-193, https://doi.org/10.1029/2007EO170003.","productDescription":"4 p.","startPage":"191","endPage":"193","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":622,"text":"Washington Water Science Center","active":true,"usgs":true},{"id":49157,"text":"Rocky Mountain Regional Office","active":true,"usgs":true}],"links":[{"id":240398,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United 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,{"id":70030005,"text":"70030005 - 2007 - A field assessment of the value of steady shape hydraulic tomography for characterization of aquifer heterogeneities","interactions":[],"lastModifiedDate":"2018-04-03T17:34:05","indexId":"70030005","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3722,"text":"Water Resources Research","onlineIssn":"1944-7973","printIssn":"0043-1397","active":true,"publicationSubtype":{"id":10}},"title":"A field assessment of the value of steady shape hydraulic tomography for characterization of aquifer heterogeneities","docAbstract":"<p><span>Hydraulic tomography is a promising approach for obtaining information on variations in hydraulic conductivity on the scale of relevance for contaminant transport investigations. This approach involves performing a series of pumping tests in a format similar to tomography. We present a field‐scale assessment of hydraulic tomography in a porous aquifer, with an emphasis on the steady shape analysis methodology. The hydraulic conductivity (K) estimates from steady shape and transient analyses of the tomographic data compare well with those from a tracer test and direct‐push permeameter tests, providing a field validation of the method. Zonations based on equal‐thickness layers and cross‐hole radar surveys are used to regularize the inverse problem. The results indicate that the radar surveys provide some useful information regarding the geometry of the K field. The steady shape analysis provides results similar to the transient analysis at a fraction of the computational burden. This study clearly demonstrates the advantages of hydraulic tomography over conventional pumping tests, which provide only large‐scale averages, and small‐scale hydraulic tests (e.g., slug tests), which cannot assess strata connectivity and may fail to sample the most important pathways or barriers to flow.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2006WR004932","usgsCitation":"Bohling, G.C., Butler, J.J., Zhan, X., and Knoll, M.D., 2007, A field assessment of the value of steady shape hydraulic tomography for characterization of aquifer heterogeneities: Water Resources Research, v. 43, no. 5, Article W05430; 23 p., https://doi.org/10.1029/2006WR004932.","productDescription":"Article W05430; 23 p.","costCenters":[],"links":[{"id":477286,"rank":1,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/1808/18966","text":"External Repository"},{"id":240290,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"5","noUsgsAuthors":false,"publicationDate":"2007-05-22","publicationStatus":"PW","scienceBaseUri":"5059e3cee4b0c8380cd4622c","contributors":{"authors":[{"text":"Bohling, Geoffrey C.","contributorId":43109,"corporation":false,"usgs":false,"family":"Bohling","given":"Geoffrey","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":425256,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Butler, James J. Jr.","contributorId":199860,"corporation":false,"usgs":false,"family":"Butler","given":"James","suffix":"Jr.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":425253,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhan, Xiaoyong","contributorId":140206,"corporation":false,"usgs":false,"family":"Zhan","given":"Xiaoyong","email":"","affiliations":[],"preferred":false,"id":425255,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Knoll, Michael D.","contributorId":195370,"corporation":false,"usgs":false,"family":"Knoll","given":"Michael","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":425254,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70030003,"text":"70030003 - 2007 - The role of natural vegetative disturbance in determining stream reach characteristics in central Idaho and western Montana","interactions":[],"lastModifiedDate":"2015-12-16T07:30:49","indexId":"70030003","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2900,"text":"Northwest Science","onlineIssn":"2161-9859","printIssn":"0029-344X","active":true,"publicationSubtype":{"id":10}},"title":"The role of natural vegetative disturbance in determining stream reach characteristics in central Idaho and western Montana","docAbstract":"<p>We evaluated the relationship between natural vegetative disturbance and changes in stream habitat and macroinvertebrate metrics within 33 randomly selected minimally managed watersheds in central Idaho and western Montana. Changes in stream reach conditions were related to vegetative disturbance for the time periods from 1985 to 1993 and 1993 to 2000, respectively, at the following three spatial scales; within the stream buffer and less than 1 km from the evaluated reach, within the watershed and within 1 km of the stream reach, and within the watershed. Data for stream reaches were based on field surveys and vegetative disturbance was generated for the watershed above the sampled reach using remotely sensed data and geographical information systems. Large scale (&gt;100 ha) vegetative disturbance was common within the study area. Even though natural vegetative disturbance rates were high, we found that few of the measured attributes were related to the magnitude of vegetative disturbance. The three physical habitat attributes that changed significantly were sinuosity, median particle size, and percentage of undercut bank; each was related to the disturbance in the earlier (1985-1993) time frame. There was a significant relationship between changes in two macroinvertebrate metrics, abundance and percent collectors/filterers, and the magnitude of disturbance during the more recent time period (1993-2000). We did not find a consistent relationship between the location of the disturbance within the watershed and changes in stream conditions. Our findings suggest that natural vegetative disturbance within the northern Rocky Mountains is complex but likely does not result in substantial short-term changes in the characteristics of most stream reaches. ?? 2007 by the Northwest Scientific Association. All rights reserved.</p>","language":"English","publisher":"Northwest Scientific Association","doi":"10.3955/0029-344X-81.3.224","issn":"0029344X","usgsCitation":"Roper, B., Jarvis, B., and Kershner, J.L., 2007, The role of natural vegetative disturbance in determining stream reach characteristics in central Idaho and western Montana: Northwest Science, v. 81, no. 3, p. 224-238, https://doi.org/10.3955/0029-344X-81.3.224.","productDescription":"15 p.","startPage":"224","endPage":"238","numberOfPages":"15","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"links":[{"id":240255,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Idaho, Montana","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -115.57617187499999,\n              44.134913443750726\n            ],\n            [\n              -115.57617187499999,\n              46.63435070293566\n            ],\n            [\n              -111.97265625,\n              46.63435070293566\n            ],\n            [\n              -111.97265625,\n              44.134913443750726\n            ],\n            [\n              -115.57617187499999,\n              44.134913443750726\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"81","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baf88e4b08c986b324883","contributors":{"authors":[{"text":"Roper, B.B.","contributorId":65280,"corporation":false,"usgs":true,"family":"Roper","given":"B.B.","email":"","affiliations":[],"preferred":false,"id":425246,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Jarvis, B.","contributorId":69785,"corporation":false,"usgs":true,"family":"Jarvis","given":"B.","email":"","affiliations":[],"preferred":false,"id":425247,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kershner, J. L.","contributorId":100322,"corporation":false,"usgs":true,"family":"Kershner","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":425248,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70030002,"text":"70030002 - 2007 - Juvenile densities relative to water regime in mainstem reservoirs of the Tennessee River, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70030002","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2594,"text":"Lakes and Reservoirs: Research and Management","active":true,"publicationSubtype":{"id":10}},"title":"Juvenile densities relative to water regime in mainstem reservoirs of the Tennessee River, USA","docAbstract":"Successful reproduction and development of strong year classes of fish in storage reservoirs are commonly associated with reproductive seasons of high water level and extensive flooding. Responses to flooding are likely to be less pronounced or altogether different in mainstem navigation reservoirs that experience limited water level fluctuation. In these reservoirs, water regime characteristics such as timing of flooding, instability of water level, and water retention could supersede the effects of water level. We examined existing data to identify aspects of the water regime that have detectable consequence on juveniles of selected taxa in a sequence of four reservoirs of the Tennessee River that exhibited relatively small annual rises. Empirical models relating density of selected age-0 centrarchids to water regime suggested that descriptors of spring and summer flow through the reservoirs, water level instability, and summer water level were better related to juvenile densities than was spring water level. Different water regimes had different effects on the study species, and presumably other species in the fish communities. Therefore, a diversity of water regimes rather than a rigid rule curve is likely most beneficial to the long-term permanence of the fish assemblages of the study reservoirs. Fixed rule curves produce drawdown zones devoid of vegetation consisting primarily of mudflats of limited ecological value to floodplain species, and maintenance of water levels within the rule curve force operational drops and rises that adversely affect littoral spawners. In developing water management plans, regulatory agencies should consider incorporating managed randomness into rule curves. ?? 2007 Blackwell Publishing Asia Pty Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Lakes and Reservoirs: Research and Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1440-1770.2007.00327.x","issn":"13205331","usgsCitation":"Miranda, L., and Lowery, D., 2007, Juvenile densities relative to water regime in mainstem reservoirs of the Tennessee River, USA: Lakes and Reservoirs: Research and Management, v. 12, no. 2, p. 87-96, https://doi.org/10.1111/j.1440-1770.2007.00327.x.","startPage":"87","endPage":"96","numberOfPages":"10","costCenters":[],"links":[{"id":212725,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1440-1770.2007.00327.x"},{"id":240254,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"12","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-07-04","publicationStatus":"PW","scienceBaseUri":"505a4036e4b0c8380cd64b9b","contributors":{"authors":[{"text":"Miranda, L.E.","contributorId":58406,"corporation":false,"usgs":true,"family":"Miranda","given":"L.E.","affiliations":[],"preferred":false,"id":425245,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lowery, D.R.","contributorId":39586,"corporation":false,"usgs":true,"family":"Lowery","given":"D.R.","email":"","affiliations":[],"preferred":false,"id":425244,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70030001,"text":"70030001 - 2007 - Hydrology and water quality in two mountain basins of the northeastern US: Assessing baseline conditions and effects of ski area development","interactions":[],"lastModifiedDate":"2012-03-12T17:21:10","indexId":"70030001","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Hydrology and water quality in two mountain basins of the northeastern US: Assessing baseline conditions and effects of ski area development","docAbstract":"Mountain regions throughout the world face intense development pressures associated with recreational and tourism uses. Despite these pressures, much of the research on bio-geophysical impacts of humans in mountain regions has focused on the effects of natural resource extraction. This paper describes findings from the first 3 years of a study examining high elevation watershed processes in a region undergoing alpine resort development. Our study is designed as a paired-watershed experiment. The Ranch Brook watershed (9.6 km2) is a relatively pristine, forested watershed and serves as the undeveloped 'control' basin. West Branch (11.7 km2) encompasses an existing alpine ski resort, with approximately 17% of the basin occupied by ski trails and impervious surfaces, and an additional 7% slated for clearing and development. Here, we report results for water years 2001-2003 of streamflow and water quality dynamics for these watersheds. Precipitation increases significantly with elevation in the watersheds, and winter precipitation represents 36-46% of annual precipitation. Artificial snowmaking from water within West Branch watershed currently augments annual precipitation by only 3-4%. Water yield in the developed basin exceeded that in the control by 18-36%. Suspended sediment yield was more than two and a half times greater and fluxes of all major solutes were higher in the developed basin. Our study is the first to document the effects of existing ski area development on hydrology and water quality in the northeastern US and will serve as an important baseline for evaluating the effects of planned resort expansion activities in this area.","largerWorkTitle":"Hydrological Processes","language":"English","doi":"10.1002/hyp.6700","issn":"08856087","usgsCitation":"Wemple, B., Shanley, J., Denner, J., Ross, D., and Mills, K., 2007, Hydrology and water quality in two mountain basins of the northeastern US: Assessing baseline conditions and effects of ski area development, <i>in</i> Hydrological Processes, v. 21, no. 12, p. 1639-1650, https://doi.org/10.1002/hyp.6700.","startPage":"1639","endPage":"1650","numberOfPages":"12","costCenters":[],"links":[{"id":240220,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212695,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.6700"}],"volume":"21","issue":"12","noUsgsAuthors":false,"publicationDate":"2007-04-24","publicationStatus":"PW","scienceBaseUri":"505a36dde4b0c8380cd60a67","contributors":{"authors":[{"text":"Wemple, B.","contributorId":70257,"corporation":false,"usgs":true,"family":"Wemple","given":"B.","email":"","affiliations":[],"preferred":false,"id":425243,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shanley, J.","contributorId":37488,"corporation":false,"usgs":true,"family":"Shanley","given":"J.","affiliations":[],"preferred":false,"id":425242,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Denner, J.","contributorId":31215,"corporation":false,"usgs":true,"family":"Denner","given":"J.","email":"","affiliations":[],"preferred":false,"id":425240,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Ross, D.","contributorId":7049,"corporation":false,"usgs":true,"family":"Ross","given":"D.","affiliations":[],"preferred":false,"id":425239,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Mills, K.","contributorId":37036,"corporation":false,"usgs":true,"family":"Mills","given":"K.","affiliations":[],"preferred":false,"id":425241,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70029998,"text":"70029998 - 2007 - Coupling contaminants with demography: Effects of lead and selenium in Pacific common eiders","interactions":[],"lastModifiedDate":"2018-05-13T12:34:44","indexId":"70029998","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1571,"text":"Environmental Toxicology and Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"Coupling contaminants with demography: Effects of lead and selenium in Pacific common eiders","docAbstract":"<p><span>We coupled intensive population monitoring with collection of blood samples from 383 nesting Pacific common eiders (</span><i>Somateria mollisima v-nigrum</i><span>) at two locations in Alaska (USA) from 2002 to 2004. We investigated annual, geographic, and within-season variation in blood concentrations of lead and selenium; compared exposure patterns with sympatrically nesting spectacled eiders (</span><i>Somateria fischeri</i><span>); and examined relationships with clutch size, egg viability, probability of hatching, and apparent survival of adult females. Lead concentrations were elevated in 3.6% of females, and all individuals exhibited elevated selenium, most (81%) at concentrations associated with death in captive waterfowl. Blood lead and selenium concentrations varied both within and among site-years and were lower than those of spectacled eiders. During incubation, blood lead concentrations in females increased significantly (possibly via re-release of stored lead from bone), whereas selenium concentrations decreased (likely because of natural excretion). Probability of a nest containing at least one nonviable egg was positively related to blood selenium in hens, but adverse effects in other life-history variables were not supported. Although reproduction appeared to be sensitive to selenium toxicity, our data suggest that high rates of nonviability are unlikely in this population and that selenium-related reductions to clutch size would be inconsequential at the scale of overall population dynamics. We conclude that Pacific common eiders and other wild marine birds likely have higher selenium tolerances than freshwater species and that interspecific differences in exposure levels may reflect differences in reproductive strategies.</span></p>","language":"English","publisher":"Wiley","doi":"10.1897/06-537R.1","issn":"07307268","usgsCitation":"Wilson, H., Flint, P.L., and Powell, A., 2007, Coupling contaminants with demography: Effects of lead and selenium in Pacific common eiders: Environmental Toxicology and Chemistry, v. 26, no. 7, p. 1410-1417, https://doi.org/10.1897/06-537R.1.","productDescription":"8 p.","startPage":"1410","endPage":"1417","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":240187,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212665,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1897/06-537R.1"}],"volume":"26","issue":"7","noUsgsAuthors":false,"publicationDate":"2007-07-01","publicationStatus":"PW","scienceBaseUri":"5059fc8ce4b0c8380cd4e2ee","contributors":{"authors":[{"text":"Wilson, H.M.","contributorId":37306,"corporation":false,"usgs":true,"family":"Wilson","given":"H.M.","email":"","affiliations":[],"preferred":false,"id":425229,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Flint, Paul L. 0000-0002-8758-6993 pflint@usgs.gov","orcid":"https://orcid.org/0000-0002-8758-6993","contributorId":3284,"corporation":false,"usgs":true,"family":"Flint","given":"Paul","email":"pflint@usgs.gov","middleInitial":"L.","affiliations":[{"id":117,"text":"Alaska Science Center Biology WTEB","active":true,"usgs":true},{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"preferred":true,"id":425230,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Powell, A.N.","contributorId":66194,"corporation":false,"usgs":true,"family":"Powell","given":"A.N.","email":"","affiliations":[],"preferred":false,"id":425231,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70029997,"text":"70029997 - 2007 - Use of carboxylated microspheres to assess transport potential of Cryptosporidium parvum oocysts at the Russian River water supply facility, Sonoma County, California","interactions":[],"lastModifiedDate":"2018-10-16T10:25:59","indexId":"70029997","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1800,"text":"Geomicrobiology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Use of carboxylated microspheres to assess transport potential of Cryptosporidium parvum oocysts at the Russian River water supply facility, Sonoma County, California","docAbstract":"<div id=\"35d9ca18-265e-4501-9038-4105e95a4b7d\" class=\"widget pageBody none  widget-none  widget-compact-all\"><div class=\"wrapped \"><div class=\"widget-body body body-none  body-compact-all\"><div class=\"page-body pagefulltext\"><div data-pb-dropzone=\"main\"><div id=\"f4a74f7a-9ba2-4605-86b1-8094cb1f01de\" class=\"widget responsive-layout none publicationContentBody widget-none\"><div class=\"wrapped \"><div class=\"widget-body body body-none \"><div class=\"container\"><div class=\"row row-md  \"><div class=\"col-md-7-12 \"><div class=\"contents\" data-pb-dropzone=\"contents1\"><div id=\"d29f04e9-776c-4996-a0d8-931023161e00\" class=\"widget literatumPublicationContentWidget none  widget-none  widget-compact-all\"><div class=\"wrapped \"><div class=\"widget-body body body-none  body-compact-all\"><div class=\"publication-tabs ja publication-tabs-dropdown\"><div class=\"tabs tabs-widget\"><div class=\"tab-content \"><div class=\"tab tab-pane active\"><div class=\"hlFld-Abstract\"><div class=\"abstractSection abstractInFull\"><p>Carboxylated microspheres were employed as surrogates to assess the transport potential of<span>&nbsp;</span><i>Cryptosporidium parvum</i>oocysts during forced- and natural-gradient tests conducted in July and October 2004. The tests involved poorly-sorted, near-surface sediments where groundwater is pumped from an alluvial aquifer underlying the Russian River, Sonoma County, CA. In an off channel infiltration basin and within the river, a mixture (2-, 3-, and 5- μm diameters) of fluorescently-labeled carboxylated microspheres and bromide tracers were used in two injection and recovery tests to assess sediment removal efficiency for the microspheres. Bottom sediments varied considerably in their filtration efficiency for<span>&nbsp;</span><i>Cryptosporidium</i>.</p></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geomicrobiology Journal","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/01490450701456867","issn":"01490451","usgsCitation":"Metge, D.W., Harvey, R.W., Anders, R., Rosenberry, D.O., Seymour, D., and Jasperse, J., 2007, Use of carboxylated microspheres to assess transport potential of Cryptosporidium parvum oocysts at the Russian River water supply facility, Sonoma County, California: Geomicrobiology Journal, v. 24, no. 3-4, p. 231-245, https://doi.org/10.1080/01490450701456867.","productDescription":"15 p. ","startPage":"231","endPage":"245","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":240186,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212664,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/01490450701456867"}],"country":"United States","state":"California","county":"Sonoma County","otherGeospatial":"Russian River Water Supply Facility","volume":"24","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bbecce4b08c986b3297c1","contributors":{"authors":[{"text":"Metge, David W. dwmetge@usgs.gov","contributorId":663,"corporation":false,"usgs":true,"family":"Metge","given":"David","email":"dwmetge@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":425225,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harvey, Ronald W. 0000-0002-2791-8503 rwharvey@usgs.gov","orcid":"https://orcid.org/0000-0002-2791-8503","contributorId":564,"corporation":false,"usgs":true,"family":"Harvey","given":"Ronald","email":"rwharvey@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":425223,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anders, Robert 0000-0002-2363-9072 randers@usgs.gov","orcid":"https://orcid.org/0000-0002-2363-9072","contributorId":1210,"corporation":false,"usgs":true,"family":"Anders","given":"Robert","email":"randers@usgs.gov","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":425228,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rosenberry, Donald O. 0000-0003-0681-5641 rosenber@usgs.gov","orcid":"https://orcid.org/0000-0003-0681-5641","contributorId":1312,"corporation":false,"usgs":true,"family":"Rosenberry","given":"Donald","email":"rosenber@usgs.gov","middleInitial":"O.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":425224,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Seymour, Donald","contributorId":175253,"corporation":false,"usgs":false,"family":"Seymour","given":"Donald","email":"","affiliations":[{"id":17863,"text":"Sonoma County Water Agency","active":true,"usgs":false}],"preferred":false,"id":425226,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Jasperse, Jay","contributorId":168661,"corporation":false,"usgs":false,"family":"Jasperse","given":"Jay","affiliations":[{"id":17863,"text":"Sonoma County Water Agency","active":true,"usgs":false}],"preferred":false,"id":425227,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70029995,"text":"70029995 - 2007 - Factors controlling soil water and stream water aluminum concentrations after a clearcut in a forested watershed with calcium-poor soils","interactions":[],"lastModifiedDate":"2012-03-12T17:21:36","indexId":"70029995","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1007,"text":"Biogeochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Factors controlling soil water and stream water aluminum concentrations after a clearcut in a forested watershed with calcium-poor soils","docAbstract":"The 24 ha Dry Creek watershed in the Catskill Mountains of southeastern New York State USA was clearcut during the winter of 1996-1997. The interactions among acidity, nitrate (NO3- ), aluminum (Al), and calcium (Ca2+) in streamwater, soil water, and groundwater were evaluated to determine how they affected the speciation, solubility, and concentrations of Al after the harvest. Watershed soils were characterized by low base saturation, high exchangeable Al concentrations, and low exchangeable base cation concentrations prior to the harvest. Mean streamwater NO3- concentration was about 20 ??mol l-1 for the 3 years before the harvest, increased sharply after the harvest, and peaked at 1,309 ??mol l -1 about 5 months after the harvest. Nitrate and inorganic monomeric aluminum (Alim) export increased by 4-fold during the first year after the harvest. Alim mobilization is of concern because it is toxic to some fish species and can inhibit the uptake of Ca2+ by tree roots. Organic complexation appeared to control Al solubility in the O horizon while ion exchange and possibly equilibrium with imogolite appeared to control Al solubility in the B horizon. Alim and NO3- concentrations were strongly correlated in B-horizon soil water after the clearcut (r2 = 0.96), especially at NO3- concentrations greater than 100 ??mol l-1. Groundwater entering the stream from perennial springs contained high concentrations of base cations and low concentrations of NO3- which mixed with acidic, high Alim soil water and decreased the concentration of Alim in streamwater after the harvest. Five years after the harvest soil water NO 3- concentrations had dropped below preharvest levels as the demand for nitrogen by regenerating vegetation increased, but groundwater NO3- concentrations remained elevated because groundwater has a longer residence time. As a result streamwater NO3- concentrations had not fallen below preharvest levels, even during the growing season, 5 years after the harvest because of the contribution of groundwater to the stream. Streamwater NO3- and Alim concentrations increased more than reported in previous forest harvesting studies and the recovery was slower likely because the watershed has experienced several decades of acid deposition that has depleted initially base-poor soils of exchangeable base cations and caused long-term acidification of the soil. ?? 2007 Springer Science+Business Media B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Biogeochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s10533-007-9124-0","issn":"01682563","usgsCitation":"McHale, M., Burns, D.A., Lawrence, G., and Murdoch, P., 2007, Factors controlling soil water and stream water aluminum concentrations after a clearcut in a forested watershed with calcium-poor soils: Biogeochemistry, v. 84, no. 3, p. 311-331, https://doi.org/10.1007/s10533-007-9124-0.","startPage":"311","endPage":"331","numberOfPages":"21","costCenters":[],"links":[{"id":213100,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s10533-007-9124-0"},{"id":240690,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"84","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-05-16","publicationStatus":"PW","scienceBaseUri":"505a0ebbe4b0c8380cd535c5","contributors":{"authors":[{"text":"McHale, M.R.","contributorId":66442,"corporation":false,"usgs":true,"family":"McHale","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":425210,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Burns, Douglas A. 0000-0001-6516-2869","orcid":"https://orcid.org/0000-0001-6516-2869","contributorId":29450,"corporation":false,"usgs":true,"family":"Burns","given":"Douglas","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":425209,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lawrence, G.B. 0000-0002-8035-2350","orcid":"https://orcid.org/0000-0002-8035-2350","contributorId":76347,"corporation":false,"usgs":true,"family":"Lawrence","given":"G.B.","affiliations":[],"preferred":false,"id":425212,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Murdoch, Peter S.","contributorId":73547,"corporation":false,"usgs":true,"family":"Murdoch","given":"Peter S.","affiliations":[],"preferred":false,"id":425211,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70029990,"text":"70029990 - 2007 - Concentrations of metals in water, sediment, biofilm, benthic macroinvertebrates, and fish in the Boulder River watershed, Montana, and the role of colloids in metal uptake","interactions":[],"lastModifiedDate":"2018-10-11T18:39:29","indexId":"70029990","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":887,"text":"Archives of Environmental Contamination and Toxicology","active":true,"publicationSubtype":{"id":10}},"title":"Concentrations of metals in water, sediment, biofilm, benthic macroinvertebrates, and fish in the Boulder River watershed, Montana, and the role of colloids in metal uptake","docAbstract":"<p><span>To characterize the partitioning of metals in a stream ecosystem, concentrations of trace metals including As, Cd, Cu, Pb, and Zn were measured in water, colloids, sediment, biofilm (also referred to as&nbsp;</span><i class=\"EmphasisTypeItalic \">aufwuchs</i><span>), macroinvertebrates, and fish collected from the Boulder River watershed, Montana. Median concentrations of Cd, Cu, and Zn in water throughout the watershed exceeded the U.S. EPA acute and chronic criteria for protection of aquatic life. Concentrations of As, Cd, Cu, Pb, and Zn in sediment were sufficient in the tributaries to cause invertebrate toxicity. The concentrations of As, Cu, Cd, Pb, and Zn in invertebrates from lower Cataract Creek (63, 339, 59, 34, and 2,410&nbsp;μg/g dry wt, respectively) were greater than the concentrations in invertebrates from the Clark Fork River watershed, Montana (19, 174, 2.3, 15, and 648&nbsp;μg/g, respectively), that were associated with reduced survival, growth, and health of cutthroat trout fed diets composed of those invertebrates. Colloids and biofilm seem to play a critical role in the pathway of metals into the food chain and concentrations of As, Cu, Pb, and Zn in these two components are significantly correlated. We suggest that transfer of metals associated with Fe colloids to biological components of biofilm is an important pathway where metals associated with abiotic components are first available to biotic components. The significant correlations suggest that Cd, Cu, and Zn may move independently to biota (biofilm, invertebrates, or fish tissues) from water and sediment. The possibility exists that Cd, Cu, and Zn concentrations increase in fish tissues as a result of direct contact with water and sediment and indirect exposure through the food chain. However, uptake through the food chain to fish may be more important for As. Although As concentrations in colloids and biofilm were significantly correlated with As water concentrations, As concentrations in fish tissues were not correlated with water. The pathway for Pb into biological components seems to begin with sediment because concentrations of Pb in water were not significantly correlated with any other component and because concentrations of Pb in the water were often below detection limits.</span></p>","language":"English","publisher":"Springer-Verlag","doi":"10.1007/s00244-005-0021-z","issn":"00904341","usgsCitation":"Farag, A., Nimick, D.A., Kimball, B.A., Church, S.E., Harper, D.D., and Brumbaugh, W.G., 2007, Concentrations of metals in water, sediment, biofilm, benthic macroinvertebrates, and fish in the Boulder River watershed, Montana, and the role of colloids in metal uptake: Archives of Environmental Contamination and Toxicology, v. 52, no. 3, p. 397-409, https://doi.org/10.1007/s00244-005-0021-z.","productDescription":"13 p.","startPage":"397","endPage":"409","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":240625,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213045,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00244-005-0021-z"}],"country":"United States","state":"Montana","otherGeospatial":"Boulder River watershed","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -112.391667,\n              46.425\n            ],\n            [\n              -112.391667,\n              46.35\n            ],\n            [\n              -112.266667,\n              46.241667\n            ],\n            [\n              -112.15,\n              46.241667\n            ],\n            [\n              -112.15,\n              46.425\n            ],\n            [\n              -112.391667,\n              46.425\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"52","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-01-11","publicationStatus":"PW","scienceBaseUri":"5059f996e4b0c8380cd4d6b1","contributors":{"authors":[{"text":"Farag, Aida 0000-0003-4247-6763 aida_farag@usgs.gov","orcid":"https://orcid.org/0000-0003-4247-6763","contributorId":200690,"corporation":false,"usgs":true,"family":"Farag","given":"Aida","email":"aida_farag@usgs.gov","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":425197,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nimick, David A. dnimick@usgs.gov","contributorId":421,"corporation":false,"usgs":true,"family":"Nimick","given":"David","email":"dnimick@usgs.gov","middleInitial":"A.","affiliations":[{"id":5050,"text":"WY-MT Water Science Center","active":true,"usgs":true},{"id":573,"text":"Special Applications Science Center","active":true,"usgs":true}],"preferred":true,"id":425194,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kimball, Briant A. bkimball@usgs.gov","contributorId":533,"corporation":false,"usgs":true,"family":"Kimball","given":"Briant","email":"bkimball@usgs.gov","middleInitial":"A.","affiliations":[{"id":610,"text":"Utah Water Science Center","active":true,"usgs":true}],"preferred":true,"id":425196,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Church, Stanley E. schurch@usgs.gov","contributorId":199165,"corporation":false,"usgs":true,"family":"Church","given":"Stanley","email":"schurch@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":425193,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Harper, David D. 0000-0001-7061-8461 david_harper@usgs.gov","orcid":"https://orcid.org/0000-0001-7061-8461","contributorId":1140,"corporation":false,"usgs":true,"family":"Harper","given":"David","email":"david_harper@usgs.gov","middleInitial":"D.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":false,"id":425195,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Brumbaugh, William G. 0000-0003-0081-375X bbrumbaugh@usgs.gov","orcid":"https://orcid.org/0000-0003-0081-375X","contributorId":493,"corporation":false,"usgs":true,"family":"Brumbaugh","given":"William","email":"bbrumbaugh@usgs.gov","middleInitial":"G.","affiliations":[{"id":192,"text":"Columbia Environmental Research Center","active":true,"usgs":true}],"preferred":true,"id":425198,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70029987,"text":"70029987 - 2007 - Hydrodynamics of coalbed methane reservoirs in the Black Warrior Basin: Key to understanding reservoir performance and environmental issues","interactions":[],"lastModifiedDate":"2012-03-12T17:21:07","indexId":"70029987","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Hydrodynamics of coalbed methane reservoirs in the Black Warrior Basin: Key to understanding reservoir performance and environmental issues","docAbstract":"The Black Warrior Basin of the southeastern United States hosts one of the world's most prolific and long-lived coalbed methane plays, and the wealth of experience in this basin provides insight into the relationships among basin hydrology, production performance, and environmental issues. Along the southeast margin of the basin, meteoric recharge of reservoir coal beds exposed in an upturned fold limb exerts a strong control on water chemistry, reservoir pressure, and production performance. Fresh-water plumes containing Na-HCO3 waters with low TDS content extend from the structurally upturned basin margin into the interior of the basin. Northwest of the plumes, coal beds contain Na-Cl waters with moderate to high-TDS content. Carbon isotope data from produced gas and mineral cements suggest that the fresh-water plumes have been the site of significant bacterial activity and that the coalbed methane reservoirs contain a mixture of thermogenic and late-stage biogenic gases. Water produced from the fresh-water plumes may be disposed safely at the surface, whereas underground injection has been used locally to dispose of highly saline water. Wells in areas that had normal hydrostatic reservoir pressure prior to development tend to produce large volumes of water and may take up to 4 a to reach peak gas production. In contrast, wells drilled in naturally underpressured areas distal to the fresh-water plumes typically produce little water and achieve peak gas rates during the first year of production. Environmental debate has focused largely on issues associated with hydrologic communication between deep reservoir coal beds and shallow aquifers. In the coalbed methane fields of the Black Warrior Basin, a broad range of geologic evidence suggests that flow is effectively confined within coal and that the thick intervals of marine shale separating coal zones limit cross-formational flow. ?? 2007 Elsevier Ltd. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.apgeochem.2007.04.009","issn":"08832927","usgsCitation":"Pashin, J., 2007, Hydrodynamics of coalbed methane reservoirs in the Black Warrior Basin: Key to understanding reservoir performance and environmental issues: Applied Geochemistry, v. 22, no. 10, p. 2257-2272, https://doi.org/10.1016/j.apgeochem.2007.04.009.","startPage":"2257","endPage":"2272","numberOfPages":"16","costCenters":[],"links":[{"id":212985,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2007.04.009"},{"id":240561,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"22","issue":"10","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3340e4b0c8380cd5ee6e","contributors":{"authors":[{"text":"Pashin, J.C.","contributorId":41897,"corporation":false,"usgs":true,"family":"Pashin","given":"J.C.","affiliations":[],"preferred":false,"id":425185,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70029979,"text":"70029979 - 2007 - Nutrients stimulate leaf breakdown rates and detritivore biomass: Bottom-up effects via heterotrophic pathways","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029979","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2932,"text":"Oecologia","active":true,"publicationSubtype":{"id":10}},"title":"Nutrients stimulate leaf breakdown rates and detritivore biomass: Bottom-up effects via heterotrophic pathways","docAbstract":"Most nutrient enrichment studies in aquatic systems have focused on autotrophic food webs in systems where primary producers dominate the resource base. We tested the heterotrophic response to long-term nutrient enrichment in a forested, headwater stream. Our study design consisted of 2 years of pretreatment data in a reference and treatment stream and 2 years of continuous nitrogen (N) + phosphorus addition to the treatment stream. Studies were conducted with two leaf species that differed in initial C:N, Rhododendron maximum (rhododendron) and Acer rubrum (red maple). We determined the effects of nutrient addition on detrital resources (leaf breakdown rates, litter C:N and microbial activity) and tested whether nutrient enrichment affected macroinvertebrate consumers via increased biomass. Leaf breakdown rates were ca. 1.5 and 3?? faster during the first and second years of enrichment, respectively, in the treatment stream for both leaf types. Microbial respiration rates of both leaf types were 3?? higher with enrichment, and macroinvertebrate biomass associated with leaves increased ca. 2-3?? with enrichment. The mass of N in macroinvertebrate biomass relative to leaves tended to increase with enrichment up to 6?? for red maple and up to 44?? for rhododendron leaves. Lower quality (higher C:N) rhododendron leaves exhibited greater changes in leaf nutrient content and macroinvertebrate response to nutrient enrichment than red maple leaves, suggesting a unique response by different leaf species to nutrient enrichment. Nutrient concentrations used in this study were moderate and equivalent to those in streams draining watersheds with altered land use. Thus, our results suggest that similarly moderate levels of enrichment may affect detrital resource quality and subsequently lead to altered energy and nutrient flow in detrital food webs. ?? 2006 Springer-Verlag.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Oecologia","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00442-006-0609-7","issn":"00298549","usgsCitation":"Greenwood, J., Rosemond, A., Wallace, J., Cross, W.F., and Weyers, H., 2007, Nutrients stimulate leaf breakdown rates and detritivore biomass: Bottom-up effects via heterotrophic pathways: Oecologia, v. 151, no. 4, p. 637-649, https://doi.org/10.1007/s00442-006-0609-7.","startPage":"637","endPage":"649","numberOfPages":"13","costCenters":[],"links":[{"id":240462,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212897,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00442-006-0609-7"}],"volume":"151","issue":"4","noUsgsAuthors":false,"publicationDate":"2006-12-05","publicationStatus":"PW","scienceBaseUri":"505a69c1e4b0c8380cd73ea5","contributors":{"authors":[{"text":"Greenwood, J.L.","contributorId":92870,"corporation":false,"usgs":true,"family":"Greenwood","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":425164,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Rosemond, A.D.","contributorId":96621,"corporation":false,"usgs":true,"family":"Rosemond","given":"A.D.","affiliations":[],"preferred":false,"id":425165,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Wallace, J.B.","contributorId":10871,"corporation":false,"usgs":true,"family":"Wallace","given":"J.B.","email":"","affiliations":[],"preferred":false,"id":425162,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Cross, W. F.","contributorId":15412,"corporation":false,"usgs":true,"family":"Cross","given":"W.","email":"","middleInitial":"F.","affiliations":[{"id":36555,"text":"Montana State University","active":true,"usgs":false}],"preferred":false,"id":425163,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Weyers, H.S.","contributorId":8592,"corporation":false,"usgs":true,"family":"Weyers","given":"H.S.","email":"","affiliations":[],"preferred":false,"id":425161,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70029978,"text":"70029978 - 2007 - Estimating hydraulic properties of volcanic aquifers using constant-rate and variable-rate aquifer tests","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029978","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2529,"text":"Journal of the American Water Resources Association","active":true,"publicationSubtype":{"id":10}},"title":"Estimating hydraulic properties of volcanic aquifers using constant-rate and variable-rate aquifer tests","docAbstract":"In recent years the ground-water demand of the population of the island of Maui, Hawaii, has significantly increased. To ensure prudent management of the ground-water resources, an improved understanding of ground-water flow systems is needed. At present, large-scale estimations of aquifer properties are lacking for Maui. Seven analytical methods using constant-rate and variable-rate withdrawals for single wells provide an estimate of hydraulic conductivity and transmissivity for 103 wells in central Maui. Methods based on constant-rate tests, although not widely used on Maui, offer reasonable estimates. Step-drawdown tests, which are more abundantly used than other tests, provide similar estimates as constant-rate tests. A numerical model validates the suitability of analytical solutions for step-drawdown tests and additionally provides an estimate of storage parameters. The results show that hydraulic conductivity is log-normally distributed and that for dike-free volcanic rocks it ranges over several orders of magnitude from 1 to 2,500 m/d. The arithmetic mean, geometric mean, and median values of hydraulic conductivity are respectively 520, 280, and 370 m/d for basalt and 80, 50, and 30 m/d for sediment. A geostatistical approach using ordinary kriging yields a prediction of hydraulic conductivity on a larger scale. Overall, the results are in agreement with values published for other Hawaiian islands. ?? 2007 American Water Resources Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of the American Water Resources Association","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1752-1688.2007.00026.x","issn":"1093474X","usgsCitation":"Rotzoll, K., El-Kadi, A., and Gingerich, S.B., 2007, Estimating hydraulic properties of volcanic aquifers using constant-rate and variable-rate aquifer tests: Journal of the American Water Resources Association, v. 43, no. 2, p. 334-345, https://doi.org/10.1111/j.1752-1688.2007.00026.x.","startPage":"334","endPage":"345","numberOfPages":"12","costCenters":[],"links":[{"id":212871,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1752-1688.2007.00026.x"},{"id":240430,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"43","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-03-15","publicationStatus":"PW","scienceBaseUri":"505a0b22e4b0c8380cd525b1","contributors":{"authors":[{"text":"Rotzoll, K.","contributorId":72205,"corporation":false,"usgs":true,"family":"Rotzoll","given":"K.","affiliations":[],"preferred":false,"id":425158,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"El-Kadi, A. I.","contributorId":103838,"corporation":false,"usgs":true,"family":"El-Kadi","given":"A. I.","affiliations":[],"preferred":false,"id":425160,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Gingerich, S. B.","contributorId":83958,"corporation":false,"usgs":true,"family":"Gingerich","given":"S.","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":425159,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70029975,"text":"70029975 - 2007 - Year-class formation of upper St. Lawrence River northern pike","interactions":[],"lastModifiedDate":"2012-03-12T17:21:08","indexId":"70029975","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2886,"text":"North American Journal of Fisheries Management","active":true,"publicationSubtype":{"id":10}},"title":"Year-class formation of upper St. Lawrence River northern pike","docAbstract":"Variables associated with year-class formation in upper St. Lawrence River northern pike Esox lucius were examined to explore population trends. A partial least-squares (PLS) regression model (PLS 1) was used to relate a year-class strength index (YCSI; 1974-1997) to explanatory variables associated with spawning and nursery areas (seasonal water level and temperature and their variability, number of ice days, and last day of ice presence). A second model (PLS 2) incorporated four additional ecological variables: potential predators (abundance of double-crested cormorants Phalacrocorax auritus and yellow perch Perca flavescens), female northern pike biomass (as a measure of stock-recruitment effects), and total phosphorus (productivity). Trends in adult northern pike catch revealed a decline (1981-2005), and year-class strength was positively related to catch per unit effort (CPUE; R2 = 0.58). The YCSI exceeded the 23-year mean in only 2 of the last 10 years. Cyclic patterns in the YCSI time series (along with strong year-classes every 4-6 years) were apparent, as was a dampening effect of amplitude beginning around 1990. The PLS 1 model explained over 50% of variation in both explanatory variables and the dependent variable, YCSI first-order moving-average residuals. Variables retained (N = 10; Wold's statistic ??? 0.8) included negative YCSI associations with high summer water levels, high variability in spring and fall water levels, and variability in fall water temperature. The YCSI exhibited positive associations with high spring, summer, and fall water temperature, variability in spring temperature, and high winter and spring water level. The PLS 2 model led to positive YCSI associations with phosphorus and yellow perch CPUE and a negative correlation with double-crested cormorant abundance. Environmental variables (water level and temperature) are hypothesized to regulate northern pike YCSI cycles, and dampening in YCSI magnitude may be related to a combination of factors, including wetland habitat changes, reduced nutrient loading, and increased predation by double-crested cormorants. ?? Copyright by the American Fisheries Society 2007.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"North American Journal of Fisheries Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/M05-081.1","issn":"02755947","usgsCitation":"Smith, B., Farrell, J., Underwood, H., and Smith, S., 2007, Year-class formation of upper St. Lawrence River northern pike: North American Journal of Fisheries Management, v. 27, no. 2, p. 481-491, https://doi.org/10.1577/M05-081.1.","startPage":"481","endPage":"491","numberOfPages":"11","costCenters":[],"links":[{"id":212843,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/M05-081.1"},{"id":240395,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"27","issue":"2","noUsgsAuthors":false,"publicationDate":"2007-05-01","publicationStatus":"PW","scienceBaseUri":"505bd204e4b08c986b32f62c","contributors":{"authors":[{"text":"Smith, B.M.","contributorId":33926,"corporation":false,"usgs":true,"family":"Smith","given":"B.M.","email":"","affiliations":[],"preferred":false,"id":425144,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Farrell, J.M.","contributorId":54408,"corporation":false,"usgs":true,"family":"Farrell","given":"J.M.","email":"","affiliations":[],"preferred":false,"id":425145,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Underwood, H.B. 0000-0002-2064-9128","orcid":"https://orcid.org/0000-0002-2064-9128","contributorId":90849,"corporation":false,"usgs":true,"family":"Underwood","given":"H.B.","affiliations":[],"preferred":false,"id":425146,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Smith, S.J.","contributorId":23675,"corporation":false,"usgs":true,"family":"Smith","given":"S.J.","email":"","affiliations":[],"preferred":false,"id":425143,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70029974,"text":"70029974 - 2007 - Soil properties and perceived disturbance of grasslands subjected to mechanized military training: Evaluation of an index","interactions":[],"lastModifiedDate":"2012-03-12T17:21:09","indexId":"70029974","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2597,"text":"Land Degradation and Development","active":true,"publicationSubtype":{"id":10}},"title":"Soil properties and perceived disturbance of grasslands subjected to mechanized military training: Evaluation of an index","docAbstract":"Mechanized maneuver training impacts the landscape by creating depressions, compacting soils, producing bare ground areas, transporting seeds of invasive plants, and crushing vegetation. We measured 3 physical, 13 chemical, and 2 biological soil properties and used a disturbance index (DI) based on perceptions of soil conditions on a military installation to assess the condition of 100 ?? 100 m plots (1 ha): 10 in 2002 and 10 in 2004. Potential DI scores range from 0 (no appreciable evidence of disturbance) to 1 (>95 per cent of the plot disturbed). Bulk density, porosity (%), and water content (%) - all at 5-1-10-0cm depth, and nematode family richness (NFR) were significantly, negatively correlated (Spearman coefficients, rs) with the DI of both years. The strong negative correlation (rs., = -0.69 in 2002, -0.79 in 2004) of NFR with the DI appears to reflect the status of nematode diversity and, therefore, may serve as a useful, inexpensive approach to rapidly assessing grasslands subjected to mechanized military training. Copyright ?? 2007 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Land Degradation and Development","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/ldr.773","issn":"10853278","usgsCitation":"Althoff, D.P., Althoff, P., Lambrecht, N., Gipson, P.S., Pontius, J., and Woodford, P., 2007, Soil properties and perceived disturbance of grasslands subjected to mechanized military training: Evaluation of an index: Land Degradation and Development, v. 18, no. 3, p. 269-288, https://doi.org/10.1002/ldr.773.","startPage":"269","endPage":"288","numberOfPages":"20","costCenters":[],"links":[{"id":240360,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":212816,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/ldr.773"}],"volume":"18","issue":"3","noUsgsAuthors":false,"publicationDate":"2007-01-21","publicationStatus":"PW","scienceBaseUri":"505b9214e4b08c986b319cae","contributors":{"authors":[{"text":"Althoff, Donald P.","contributorId":20980,"corporation":false,"usgs":false,"family":"Althoff","given":"Donald","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":425137,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Althoff, P.S.","contributorId":100614,"corporation":false,"usgs":true,"family":"Althoff","given":"P.S.","email":"","affiliations":[],"preferred":false,"id":425142,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lambrecht, N.D.","contributorId":33127,"corporation":false,"usgs":true,"family":"Lambrecht","given":"N.D.","email":"","affiliations":[],"preferred":false,"id":425139,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Gipson, P. S.","contributorId":70136,"corporation":false,"usgs":false,"family":"Gipson","given":"P.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":425141,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Pontius, J.S.","contributorId":69523,"corporation":false,"usgs":true,"family":"Pontius","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":425140,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Woodford, P.B.","contributorId":24996,"corporation":false,"usgs":true,"family":"Woodford","given":"P.B.","email":"","affiliations":[],"preferred":false,"id":425138,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70029967,"text":"70029967 - 2007 - Arsenic attenuation by oxidized aquifer sediments in Bangladesh","interactions":[],"lastModifiedDate":"2023-08-02T12:26:36.475241","indexId":"70029967","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3352,"text":"Science of the Total Environment","active":true,"publicationSubtype":{"id":10}},"title":"Arsenic attenuation by oxidized aquifer sediments in Bangladesh","docAbstract":"<p>Recognition of arsenic (As) contamination of shallow fluvio-deltaic aquifers in the Bengal Basin has resulted in increasing exploitation of groundwater from deeper aquifers that generally contain low concentrations of dissolved As. Pumping-induced infiltration of high-As groundwater could eventually cause As concentrations in these aquifers to increase. This study investigates the adsorption capacity for As of sediment from a low-As aquifer near Dhaka, Bangladesh. A shallow, chemically-reducing aquifer at this site extends to a depth of 50&nbsp;m and has maximum As concentrations in groundwater of 900&nbsp;μg/L. At depths greater than 50&nbsp;m, geochemical conditions are more oxidizing and groundwater has &lt;&nbsp;5&nbsp;μg/L As. There is no thick layer of clay at this site to inhibit vertical transport of groundwater.</p><p>Arsenite [As(III)] is the dominant oxidation state in contaminated groundwater; however, data from laboratory batch experiments show that As(III) is oxidized to arsenate [As(V)] by manganese (Mn) minerals that are present in the oxidized sediment. Thus, the long-term viability of the deeper aquifers as a source of water supply is likely to depend on As(V) adsorption. The adsorption capacity of these sediments is a function of the oxidation state of As and the concentration of other solutes that compete for adsorption sites. Arsenite that was not oxidized did adsorb, but to a much lesser extent than As(V). Phosphate (P) caused a substantial decrease in As(V) adsorption. Increasing pH and concentrations of silica (Si) had lesser effects on As(V) adsorption. The effect of bicarbonate (HCO<sub>3</sub>) on As(V) adsorption was negligible. Equilibrium constants for adsorption of As(V), As(III), P, Si, HCO<sub>3</sub>, and H were determined from the experimental data and a quantitative model developed. Oxidation of As(III) was modeled with a first-order rate constant. This model was used to successfully simulate As(V) adsorption in the presence of multiple competing solutes. Results from these experiments show that oxidized sediments have a substantial but limited capacity for removal of As from groundwater.</p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.scitotenv.2006.11.029","issn":"00489697","usgsCitation":"Stollenwerk, K.G., Breit, G.N., Welch, A.H., Yount, J., Whitney, J.W., Foster, A.L., Uddin, M., Majumder, R., and Ahmed, N., 2007, Arsenic attenuation by oxidized aquifer sediments in Bangladesh: Science of the Total Environment, v. 379, no. 2-3, p. 133-150, https://doi.org/10.1016/j.scitotenv.2006.11.029.","productDescription":"18 p.","startPage":"133","endPage":"150","numberOfPages":"18","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":477071,"rank":2,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1016/j.scitotenv.2006.11.029","text":"Publisher Index Page"},{"id":240253,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"Bangladesh","city":"Dhaka","otherGeospatial":"Bengal Basin","geographicExtents":"{\"type\":\"FeatureCollection\",\"features\":[{\"type\":\"Feature\",\"geometry\":{\"type\":\"Polygon\",\"coordinates\":[[[92.67272,22.04124],[92.65226,21.32405],[92.30323,21.47549],[92.36855,20.67088],[92.08289,21.1922],[92.02522,21.70157],[91.83489,22.18294],[91.41709,22.76502],[90.49601,22.80502],[90.58696,22.39279],[90.27297,21.83637],[89.84747,22.03915],[89.70205,21.85712],[89.41886,21.96618],[89.03196,22.05571],[88.87631,22.87915],[88.52977,23.63114],[88.69994,24.23371],[88.08442,24.50166],[88.30637,24.86608],[88.93155,25.23869],[88.20979,25.76807],[88.56305,26.44653],[89.35509,26.01441],[89.83248,25.96508],[89.92069,25.26975],[90.87221,25.1326],[91.7996,25.14743],[92.3762,24.97669],[91.91509,24.13041],[91.46773,24.07264],[91.15896,23.50353],[91.70648,22.98526],[91.86993,23.62435],[92.14603,23.6275],[92.67272,22.04124]]]},\"properties\":{\"name\":\"Bangladesh\"}}]}","volume":"379","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ed8be4b0c8380cd49882","contributors":{"authors":[{"text":"Stollenwerk, Kenneth G. kgstolle@usgs.gov","contributorId":578,"corporation":false,"usgs":true,"family":"Stollenwerk","given":"Kenneth","email":"kgstolle@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":425109,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Breit, George N. 0000-0003-2188-6798 gbreit@usgs.gov","orcid":"https://orcid.org/0000-0003-2188-6798","contributorId":1480,"corporation":false,"usgs":true,"family":"Breit","given":"George","email":"gbreit@usgs.gov","middleInitial":"N.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":425111,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Welch, Alan H.","contributorId":35399,"corporation":false,"usgs":true,"family":"Welch","given":"Alan","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":425105,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Yount, James C.","contributorId":39341,"corporation":false,"usgs":true,"family":"Yount","given":"James C.","affiliations":[],"preferred":false,"id":425108,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Whitney, John W. 0000-0003-3824-3692 jwhitney@usgs.gov","orcid":"https://orcid.org/0000-0003-3824-3692","contributorId":804,"corporation":false,"usgs":true,"family":"Whitney","given":"John","email":"jwhitney@usgs.gov","middleInitial":"W.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":425107,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Foster, Andrea L. 0000-0003-1362-0068 afoster@usgs.gov","orcid":"https://orcid.org/0000-0003-1362-0068","contributorId":1740,"corporation":false,"usgs":true,"family":"Foster","given":"Andrea","email":"afoster@usgs.gov","middleInitial":"L.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":662,"text":"Western Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":425106,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Uddin, M.N.","contributorId":105979,"corporation":false,"usgs":true,"family":"Uddin","given":"M.N.","email":"","affiliations":[],"preferred":false,"id":425113,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Majumder, R.K.","contributorId":94929,"corporation":false,"usgs":true,"family":"Majumder","given":"R.K.","email":"","affiliations":[],"preferred":false,"id":425112,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Ahmed, N.","contributorId":71846,"corporation":false,"usgs":true,"family":"Ahmed","given":"N.","email":"","affiliations":[],"preferred":false,"id":425110,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70029966,"text":"70029966 - 2007 - Widespread natural perchlorate in unsaturated zones of the southwest United States","interactions":[],"lastModifiedDate":"2023-08-02T11:23:16.865044","indexId":"70029966","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Widespread natural perchlorate in unsaturated zones of the southwest United States","docAbstract":"<div class=\"article_abstract\"><div class=\"container container_scaled-down\"><div class=\"row\"><div class=\"col-xs-12\"><div id=\"abstractBox\" class=\"article_abstract-content hlFld-Abstract\"><p class=\"articleBody_abstractText\">A substantial reservoir (up to 1 kg ha<sup>-1</sup>) of natural perchlorate is present in diverse unsaturated zones of the arid and semi-arid southwestern United States. The perchlorate co-occurs with meteoric chloride that has accumulated in these soils throughout the Holocene [0 to 10−15 ka (thousand years ago)] and possibly longer periods. Previously, natural perchlorate widely believed to be limited to the Atacama Desert, now appears widespread in steppe-to-desert ecoregions. The perchlorate reservoir becomes sufficiently large to affect groundwater when recharge from irrigation or climate change flushes accumulated salts from the unsaturated zone. This new source may help explain increasing reports of perchlorate in dry region agricultural products and should be considered when evaluating overall source contributions.</p></div></div></div></div></div>","language":"English","publisher":"ACS publications","doi":"10.1021/es062853i","usgsCitation":"Rao, B., Anderson, T.A., Orris, G.J., Rainwater, K.A., Rajagopalan, S., Sandvig, R.M., Scanlon, B., Stonestrom, D.A., Walvoord, M.A., and Jackson, W., 2007, Widespread natural perchlorate in unsaturated zones of the southwest United States: Environmental Science & Technology, v. 41, no. 13, p. 4522-4528, https://doi.org/10.1021/es062853i.","productDescription":"7 p.","startPage":"4522","endPage":"4528","costCenters":[{"id":465,"text":"Nevada Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":240218,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"coordinates\": [\n          [\n            [\n              -117.37637060997972,\n              38.32858773159356\n            ],\n            [\n              -117.37637060997972,\n              30.437852260794457\n            ],\n            [\n              -100.68431363371681,\n              30.437852260794457\n            ],\n            [\n              -100.68431363371681,\n              38.32858773159356\n            ],\n            [\n              -117.37637060997972,\n              38.32858773159356\n            ]\n          ]\n        ],\n        \"type\": \"Polygon\"\n      }\n    }\n  ]\n}","volume":"41","issue":"13","noUsgsAuthors":false,"publicationDate":"2007-06-06","publicationStatus":"PW","scienceBaseUri":"505bd0b3e4b08c986b32efef","contributors":{"authors":[{"text":"Rao, Balaji","contributorId":29643,"corporation":false,"usgs":false,"family":"Rao","given":"Balaji","affiliations":[],"preferred":false,"id":425096,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Anderson, Todd A.","contributorId":191110,"corporation":false,"usgs":false,"family":"Anderson","given":"Todd","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":425098,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Orris, Greta J. 0000-0002-2340-9955 greta@usgs.gov","orcid":"https://orcid.org/0000-0002-2340-9955","contributorId":3472,"corporation":false,"usgs":true,"family":"Orris","given":"Greta","email":"greta@usgs.gov","middleInitial":"J.","affiliations":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true},{"id":662,"text":"Western Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":425100,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Rainwater, Ken A.","contributorId":61188,"corporation":false,"usgs":false,"family":"Rainwater","given":"Ken","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":425097,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Rajagopalan, Srinath","contributorId":191269,"corporation":false,"usgs":false,"family":"Rajagopalan","given":"Srinath","email":"","affiliations":[],"preferred":false,"id":425099,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Sandvig, Renee M.","contributorId":103875,"corporation":false,"usgs":false,"family":"Sandvig","given":"Renee","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":425104,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Scanlon, Bridget R.","contributorId":74093,"corporation":false,"usgs":true,"family":"Scanlon","given":"Bridget R.","affiliations":[],"preferred":false,"id":425101,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Stonestrom, David A. 0000-0001-7883-3385 dastones@usgs.gov","orcid":"https://orcid.org/0000-0001-7883-3385","contributorId":2280,"corporation":false,"usgs":true,"family":"Stonestrom","given":"David","email":"dastones@usgs.gov","middleInitial":"A.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":425102,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Walvoord, Michelle Ann 0000-0003-4269-8366 walvoord@usgs.gov","orcid":"https://orcid.org/0000-0003-4269-8366","contributorId":147211,"corporation":false,"usgs":true,"family":"Walvoord","given":"Michelle","email":"walvoord@usgs.gov","middleInitial":"Ann","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":425103,"contributorType":{"id":1,"text":"Authors"},"rank":9},{"text":"Jackson, W Andrew","contributorId":191265,"corporation":false,"usgs":false,"family":"Jackson","given":"W Andrew","affiliations":[],"preferred":false,"id":425095,"contributorType":{"id":1,"text":"Authors"},"rank":10}]}}
,{"id":70029960,"text":"70029960 - 2007 - Progressive oxidation of pyrite in five bituminous coal samples: An As XANES and <sup>57</sup>Fe Mössbauer spectroscopic study","interactions":[],"lastModifiedDate":"2015-04-13T10:32:00","indexId":"70029960","displayToPublicDate":"2007-01-01T00:00:00","publicationYear":"2007","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":835,"text":"Applied Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Progressive oxidation of pyrite in five bituminous coal samples: An As XANES and <sup>57</sup>Fe Mössbauer spectroscopic study","docAbstract":"<p><span>Naturally occurring pyrite commonly contains minor substituted metals and metalloids (As, Se, Hg, Cu, Ni, etc.) that can be released to the environment as a result of its weathering. Arsenic, often the most abundant minor constituent in pyrite, is a sensitive monitor of progressive pyrite oxidation in coal. To test the effect of pyrite composition and environmental parameters on the rate and extent of pyrite oxidation in coal, splits of five bituminous coal samples having differing amounts of pyrite and extents of As substitution in the pyrite, were exposed to a range of simulated weathering conditions over a period of 17 months. Samples investigated include a Springfield coal from Indiana (whole coal pyritic S&nbsp;=&nbsp;2.13&nbsp;wt.%; As in pyrite&nbsp;=&nbsp;detection limit (d.l.) to 0.06&nbsp;wt.%), two Pittsburgh coal samples from West Virginia (pyritic S&nbsp;=&nbsp;1.32&ndash;1.58&nbsp;wt.%; As in pyrite&nbsp;=&nbsp;d.l. to 0.34&nbsp;wt.%), and two samples from the Warrior Basin, Alabama (pyritic S&nbsp;=&nbsp;0.26&ndash;0.27&nbsp;wt.%; As in pyrite&nbsp;=&nbsp;d.l. to 2.72&nbsp;wt.%). Samples were collected from active mine faces, and expected differences in the concentration of As in pyrite were confirmed by electron microprobe analysis. Experimental weathering conditions in test chambers were maintained as follows: (1) dry Ar atmosphere; (2) dry O</span><sub>2</sub><span>&nbsp;atmosphere; (3) room atmosphere (relative humidity &sim;20&ndash;60%); and (4) room atmosphere with samples wetted periodically with double-distilled water. Sample splits were removed after one month, nine months, and 17 months to monitor the extent of As and Fe oxidation using As X-ray absorption near-edge structure (XANES) spectroscopy and&nbsp;</span><sup>57</sup><span>Fe M&ouml;ssbauer spectroscopy, respectively. Arsenic XANES spectroscopy shows progressive oxidation of pyritic As to arsenate, with wetted samples showing the most rapid oxidation.&nbsp;</span><sup>57</sup><span>Fe M&ouml;ssbauer spectroscopy also shows a much greater proportion of Fe</span><sup>3+</sup><span>&nbsp;forms (jarosite, Fe</span><sup>3+</sup><span>&nbsp;sulfate, FeOOH) for samples stored under wet conditions, but much less difference among samples stored under dry conditions in different atmospheres. The air-wet experiments show evidence of pyrite re-precipitation from soluble ferric sulfates, with As retention in the jarosite phase. Extents of As and Fe oxidation were similar for samples having differing As substitution in pyrite, suggesting that environmental conditions outweigh the composition and amount of pyrite as factors influencing the oxidation rate of Fe sulfides in coal.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.apgeochem.2006.10.006","issn":"08832927","usgsCitation":"Kolker, A., and Huggins, F.E., 2007, Progressive oxidation of pyrite in five bituminous coal samples: An As XANES and <sup>57</sup>Fe Mössbauer spectroscopic study: Applied Geochemistry, v. 22, no. 4, p. 778-787, https://doi.org/10.1016/j.apgeochem.2006.10.006.","productDescription":"10 p.","startPage":"778","endPage":"787","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":240687,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":213098,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2006.10.006"}],"volume":"22","issue":"4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a8ee7e4b0c8380cd7f472","contributors":{"authors":[{"text":"Kolker, Allan 0000-0002-5768-4533 akolker@usgs.gov","orcid":"https://orcid.org/0000-0002-5768-4533","contributorId":643,"corporation":false,"usgs":true,"family":"Kolker","given":"Allan","email":"akolker@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":425073,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Huggins, Frank E.","contributorId":81273,"corporation":false,"usgs":true,"family":"Huggins","given":"Frank","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":425074,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
]}