{"pageNumber":"206","pageRowStart":"5125","pageSize":"25","recordCount":16458,"records":[{"id":70037436,"text":"70037436 - 2010 - Geochronology and paleoclimatic implications of the last deglaciation of the Mauna Kea Ice Cap, Hawaii","interactions":[],"lastModifiedDate":"2012-03-12T17:22:09","indexId":"70037436","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1427,"text":"Earth and Planetary Science Letters","active":true,"publicationSubtype":{"id":10}},"title":"Geochronology and paleoclimatic implications of the last deglaciation of the Mauna Kea Ice Cap, Hawaii","docAbstract":"We present new 3He surface exposure ages on moraines and bedrock near the summit of Mauna Kea, Hawaii, which refine the age of the Mauna Kea Ice Cap during the Local Last Glacial Maximum (LLGM) and identify a subsequent fluctuation of the ice margin. The 3He ages, when combined with those reported previously, indicate that the local ice-cap margin began to retreat from its LLGM extent at 20.5??2.5ka, in agreement with the age of deglaciation determined from LLGM moraines elsewhere in the tropics. The ice-cap margin receded to a position at least 3km upslope for ~4.5-5.0kyr before readvancing nearly to its LLGM extent. The timing of this readvance at ~15.4ka corresponds to a large reduction of the Atlantic meridional overturning circulation (AMOC) following Heinrich Event 1. Subsequent ice-margin retreat began at 14.6??1.9ka, corresponding to a rapid resumption of the AMOC and onset of the B??lling warm interval, with the ice cap melting rapidly to complete deglaciation. Additional 3He ages obtained from a flood deposit date the catastrophic outburst of a moraine-dammed lake roughly coeval with the Younger Dryas cold interval, suggesting a more active hydrological cycle on Mauna Kea at this time. A coupled mass balance and ice dynamics model is used to constrain the climate required to generate ice caps of LLGM and readvance sizes. The depression of the LLGM equilibrium line altitude requires atmospheric cooling of 4.5??1??C, whereas the mass balance modeling indicates an accompanying increase in precipitation of as much as three times that of present. We hypothesize (1) that the LLGM temperature depression was associated with global cooling, (2) that the temperature depression that contributed to the readvance occurred in response to an atmospheric teleconnection to the North Atlantic, and (3) that the precipitation enhancement associated with both events occurred in response to a southward shift in the position of the inter-tropical convergence zone (ITCZ). Such a shift in the ITCZ would have allowed midlatitude cyclones to reach Mauna Kea more frequently which would have increased precipitation at high elevations and caused additional cooling. ?? 2010 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Earth and Planetary Science Letters","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.epsl.2010.06.025","issn":"0012821X","usgsCitation":"Anslow, F.S., Clark, P., Kurz, M., and Hostetler, S.W., 2010, Geochronology and paleoclimatic implications of the last deglaciation of the Mauna Kea Ice Cap, Hawaii: Earth and Planetary Science Letters, v. 297, no. 1-2, p. 234-248, https://doi.org/10.1016/j.epsl.2010.06.025.","startPage":"234","endPage":"248","numberOfPages":"15","costCenters":[],"links":[{"id":245235,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217300,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.epsl.2010.06.025"}],"volume":"297","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a1732e4b0c8380cd55409","contributors":{"authors":[{"text":"Anslow, Faron S.","contributorId":35442,"corporation":false,"usgs":true,"family":"Anslow","given":"Faron","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":461056,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Clark, P.U.","contributorId":78449,"corporation":false,"usgs":true,"family":"Clark","given":"P.U.","email":"","affiliations":[],"preferred":false,"id":461059,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kurz, M.D.","contributorId":66845,"corporation":false,"usgs":true,"family":"Kurz","given":"M.D.","email":"","affiliations":[],"preferred":false,"id":461058,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hostetler, S. W. 0000-0003-2272-8302","orcid":"https://orcid.org/0000-0003-2272-8302","contributorId":42911,"corporation":false,"usgs":true,"family":"Hostetler","given":"S.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":461057,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70037539,"text":"70037539 - 2010 - Fault-related clay authigenesis along the Moab Fault: Implications for calculations of fault rock composition and mechanical and hydrologic fault zone properties","interactions":[],"lastModifiedDate":"2012-03-12T17:22:05","indexId":"70037539","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2468,"text":"Journal of Structural Geology","active":true,"publicationSubtype":{"id":10}},"title":"Fault-related clay authigenesis along the Moab Fault: Implications for calculations of fault rock composition and mechanical and hydrologic fault zone properties","docAbstract":"The presence of clays in fault rocks influences both the mechanical and hydrologic properties of clay-bearing faults, and therefore it is critical to understand the origin of clays in fault rocks and their distributions is of great importance for defining fundamental properties of faults in the shallow crust. Field mapping shows that layers of clay gouge and shale smear are common along the Moab Fault, from exposures with throws ranging from 10 to ???1000 m. Elemental analyses of four locations along the Moab Fault show that fault rocks are enriched in clays at R191 and Bartlett Wash, but that this clay enrichment occurred at different times and was associated with different fluids. Fault rocks at Corral and Courthouse Canyons show little difference in elemental composition from adjacent protolith, suggesting that formation of fault rocks at those locations is governed by mechanical processes. Friction tests show that these authigenic clays result in fault zone weakening, and potentially influence the style of failure along the fault (seismogenic vs. aseismic) and potentially influence the amount of fluid loss associated with coseismic dilation. Scanning electron microscopy shows that authigenesis promotes that continuity of slip surfaces, thereby enhancing seal capacity. The occurrence of the authigenesis, and its influence on the sealing properties of faults, highlights the importance of determining the processes that control this phenomenon. ?? 2010 Elsevier Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Structural Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jsg.2010.07.009","issn":"01918141","usgsCitation":"Solum, J., Davatzes, N., and Lockner, D., 2010, Fault-related clay authigenesis along the Moab Fault: Implications for calculations of fault rock composition and mechanical and hydrologic fault zone properties: Journal of Structural Geology, v. 32, no. 12, p. 1899-1911, https://doi.org/10.1016/j.jsg.2010.07.009.","startPage":"1899","endPage":"1911","numberOfPages":"13","costCenters":[],"links":[{"id":218059,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jsg.2010.07.009"},{"id":246039,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"32","issue":"12","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0f20e4b0c8380cd537a5","contributors":{"authors":[{"text":"Solum, J.G.","contributorId":79280,"corporation":false,"usgs":true,"family":"Solum","given":"J.G.","email":"","affiliations":[],"preferred":false,"id":461508,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davatzes, N.C.","contributorId":59219,"corporation":false,"usgs":true,"family":"Davatzes","given":"N.C.","email":"","affiliations":[],"preferred":false,"id":461507,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lockner, D.A. 0000-0001-8630-6833","orcid":"https://orcid.org/0000-0001-8630-6833","contributorId":85603,"corporation":false,"usgs":true,"family":"Lockner","given":"D.A.","affiliations":[],"preferred":false,"id":461509,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70044510,"text":"70044510 - 2010 - Novel silver tubing method for quantitative introduction of water into high temperature conversion systems for stable hydrogen and oxygen isotopic measurements","interactions":[],"lastModifiedDate":"2018-10-10T09:58:07","indexId":"70044510","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3233,"text":"Rapid Communications in Mass Spectrometry","active":true,"publicationSubtype":{"id":10}},"title":"Novel silver tubing method for quantitative introduction of water into high temperature conversion systems for stable hydrogen and oxygen isotopic measurements","docAbstract":"A new method to seal water in silver tubes for use in a TC/EA reduction unit using a semi-automated sealing apparatus can yield reproducibilities (1 standard deviation) of &delta;<sup>2</sup>H and &delta<sup>18</sup>O measurements of 1.0 ‰ and 0.06 ‰, respectively. These silver tubes containing reference waters may be preferred for calibration of H- and O-bearing materials analyzed with a TC/EA reduction unit. The new sealing apparatus employs a computer controlled stepping motor to produce silver tubes identical in length. The reproducibility of mass of water sealed in tubes (in a range of 200 to 400 µg) can be as good as 1 percent. Although silver tubes sealed with reference waters are robust and can be shaken or heated to 110 °C with no loss of integrity, they should not be frozen because the expansion during the phase transition of water to ice will break the cold seals and all water will be lost. They should be shipped in insulated containers. This new method eliminates air inclusions and isotopic fractionation of water associated with the loading of water into capsules using a syringe. The method is also more than an order of magnitude faster than preparing water samples in ordinary Ag capsules. Nevertheless, some laboratories may prefer loading water into silver capsules because expensive equipment is not needed, but they are cautioned to apply the necessary corrections for evaporation, back exchange with laboratory atmospheric moisture, and blank.","language":"English","publisher":"Wiley","publisherLocation":"Hoboken, NJ","doi":"10.1002/rcm.4559","usgsCitation":"Qi, H., Groning, M., Coplen, T.B., Buck, B., Mroczkowski, S.J., Brand, W., Geilmann, H., and Gehre, M., 2010, Novel silver tubing method for quantitative introduction of water into high temperature conversion systems for stable hydrogen and oxygen isotopic measurements: Rapid Communications in Mass Spectrometry, v. 24, no. 13, p. 1821-1827, https://doi.org/10.1002/rcm.4559.","productDescription":"7 p.","startPage":"1821","endPage":"1827","numberOfPages":"7","additionalOnlineFiles":"N","ipdsId":"IP-020156","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":588,"text":"Toxic Hydrology Program","active":false,"usgs":true}],"links":[{"id":269701,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":269698,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/rcm.4559"}],"volume":"24","issue":"13","noUsgsAuthors":false,"publicationDate":"2010-06-02","publicationStatus":"PW","scienceBaseUri":"514988f2e4b0971933f6369f","contributors":{"authors":[{"text":"Qi, Haiping 0000-0002-8339-744X haipingq@usgs.gov","orcid":"https://orcid.org/0000-0002-8339-744X","contributorId":507,"corporation":false,"usgs":true,"family":"Qi","given":"Haiping","email":"haipingq@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":475775,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Groning, Manfred","contributorId":47659,"corporation":false,"usgs":true,"family":"Groning","given":"Manfred","affiliations":[],"preferred":false,"id":475782,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Coplen, Tyler B. 0000-0003-4884-6008 tbcoplen@usgs.gov","orcid":"https://orcid.org/0000-0003-4884-6008","contributorId":508,"corporation":false,"usgs":true,"family":"Coplen","given":"Tyler","email":"tbcoplen@usgs.gov","middleInitial":"B.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":37464,"text":"WMA - Laboratory & Analytical Services Division","active":true,"usgs":true},{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":475776,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Buck, Bryan bbuck@usgs.gov","contributorId":2326,"corporation":false,"usgs":true,"family":"Buck","given":"Bryan","email":"bbuck@usgs.gov","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":475777,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Mroczkowski, Stanley J. 0000-0001-8026-6025 smroczko@usgs.gov","orcid":"https://orcid.org/0000-0001-8026-6025","contributorId":2628,"corporation":false,"usgs":true,"family":"Mroczkowski","given":"Stanley","email":"smroczko@usgs.gov","middleInitial":"J.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":475778,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Brand, Willi A.","contributorId":38866,"corporation":false,"usgs":true,"family":"Brand","given":"Willi A.","affiliations":[],"preferred":false,"id":475780,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Geilmann, Heike","contributorId":41303,"corporation":false,"usgs":false,"family":"Geilmann","given":"Heike","email":"","affiliations":[{"id":13365,"text":"Max-Planck Institute for Biogeochemistry, Jena, Germany","active":true,"usgs":false}],"preferred":false,"id":475781,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Gehre, Matthias","contributorId":34004,"corporation":false,"usgs":false,"family":"Gehre","given":"Matthias","email":"","affiliations":[],"preferred":false,"id":475779,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70034457,"text":"70034457 - 2010 - A shallow subsurface controlled release facility in Bozeman, Montana, USA, for testing near surface CO2 detection techniques and transport models","interactions":[],"lastModifiedDate":"2018-10-10T11:30:02","indexId":"70034457","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1534,"text":"Environmental Earth Sciences","active":true,"publicationSubtype":{"id":10}},"title":"A shallow subsurface controlled release facility in Bozeman, Montana, USA, for testing near surface CO2 detection techniques and transport models","docAbstract":"<p>A controlled field pilot has been developed in Bozeman, Montana, USA, to study near surface CO2 transport and detection technologies. A slotted horizontal well divided into six zones was installed in the shallow subsurface. The scale and CO2 release rates were chosen to be relevant to developing monitoring strategies for geological carbon storage. The field site was characterized before injection, and CO2 transport and concentrations in saturated soil and the vadose zone were modeled. Controlled releases of CO2 from the horizontal well were performed in the summers of 2007 and 2008, and collaborators from six national labs, three universities, and the U.S. Geological Survey investigated movement of CO2 through the soil, water, plants, and air with a wide range of near surface detection techniques. An overview of these results will be presented.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Earth Sciences","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s12665-009-0400-2","issn":"18666280","usgsCitation":"Spangler, L., Dobeck, L., Repasky, K., Nehrir, A., Humphries, S., Keith, C., Shaw, J., Rouse, J., Cunningham, A., Benson, S., Oldenburg, C., Lewicki, J., Wells, A., Diehl, J., Strazisar, B., Fessenden, J., Rahn, T., Amonette, J., Barr, J., Pickles, W., Jacobson, J., Silver, E.A., Male, E., Rauch, H., Gullickson, K., Trautz, R., Kharaka, Y.K., Birkholzer, J., and Wielopolski, L., 2010, A shallow subsurface controlled release facility in Bozeman, Montana, USA, for testing near surface CO2 detection techniques and transport models: Environmental Earth Sciences, v. 60, no. 2, p. 227-239, https://doi.org/10.1007/s12665-009-0400-2.","productDescription":"13 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A.","contributorId":18491,"corporation":false,"usgs":true,"family":"Silver","given":"E.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":445885,"contributorType":{"id":1,"text":"Authors"},"rank":23},{"text":"Male, E.J.","contributorId":76972,"corporation":false,"usgs":true,"family":"Male","given":"E.J.","email":"","affiliations":[],"preferred":false,"id":445903,"contributorType":{"id":1,"text":"Authors"},"rank":24},{"text":"Rauch, H.W.","contributorId":63243,"corporation":false,"usgs":true,"family":"Rauch","given":"H.W.","email":"","affiliations":[],"preferred":false,"id":445899,"contributorType":{"id":1,"text":"Authors"},"rank":25},{"text":"Gullickson, K.S.","contributorId":26907,"corporation":false,"usgs":true,"family":"Gullickson","given":"K.S.","email":"","affiliations":[],"preferred":false,"id":445888,"contributorType":{"id":1,"text":"Authors"},"rank":26},{"text":"Trautz, R.","contributorId":95290,"corporation":false,"usgs":true,"family":"Trautz","given":"R.","affiliations":[],"preferred":false,"id":445909,"contributorType":{"id":1,"text":"Authors"},"rank":27},{"text":"Kharaka, Yousif K. 0000-0001-9861-8260 ykharaka@usgs.gov","orcid":"https://orcid.org/0000-0001-9861-8260","contributorId":1928,"corporation":false,"usgs":true,"family":"Kharaka","given":"Yousif","email":"ykharaka@usgs.gov","middleInitial":"K.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":445900,"contributorType":{"id":1,"text":"Authors"},"rank":28},{"text":"Birkholzer, J.","contributorId":84590,"corporation":false,"usgs":true,"family":"Birkholzer","given":"J.","affiliations":[],"preferred":false,"id":445904,"contributorType":{"id":1,"text":"Authors"},"rank":29},{"text":"Wielopolski, L.","contributorId":88580,"corporation":false,"usgs":true,"family":"Wielopolski","given":"L.","email":"","affiliations":[],"preferred":false,"id":445907,"contributorType":{"id":1,"text":"Authors"},"rank":30}]}}
,{"id":70037174,"text":"70037174 - 2010 - A new capture fraction method to map how pumpage affects surface water flow","interactions":[],"lastModifiedDate":"2012-03-12T17:22:07","indexId":"70037174","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"A new capture fraction method to map how pumpage affects surface water flow","docAbstract":"All groundwater pumped is balanced by removal of water somewhere, initially from storage in the aquifer and later from capture in the form of increase in recharge and decrease in discharge. Capture that results in a loss of water in streams, rivers, and wetlands now is a concern in many parts of the United States. Hydrologists commonly use analytical and numerical approaches to study temporal variations in sources of water to wells for select points of interest. Much can be learned about coupled surface/groundwater systems, however, by looking at the spatial distribution of theoretical capture for select times of interest. Development of maps of capture requires (1) a reasonably well-constructed transient or steady state model of an aquifer with head-dependent flow boundaries representing surface water features or evapotranspiration and (2) an automated procedure to run the model repeatedly and extract results, each time with a well in a different location. This paper presents new methods for simulating and mapping capture using three-dimensional groundwater flow models and presents examples from Arizona, Oregon, and Michigan. Journal compilation ?? 2010 National Ground Water Association. No claim to original US government works.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2010.00701.x","issn":"0017467X","usgsCitation":"Leake, S.A., Reeves, H.W., and Dickinson, J., 2010, A new capture fraction method to map how pumpage affects surface water flow: Ground Water, v. 48, no. 5, p. 690-700, https://doi.org/10.1111/j.1745-6584.2010.00701.x.","startPage":"690","endPage":"700","numberOfPages":"11","costCenters":[],"links":[{"id":244962,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217051,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2010.00701.x"}],"volume":"48","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-08-19","publicationStatus":"PW","scienceBaseUri":"5059e49de4b0c8380cd4677f","contributors":{"authors":[{"text":"Leake, S. A.","contributorId":52164,"corporation":false,"usgs":true,"family":"Leake","given":"S.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":459734,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Reeves, H. W.","contributorId":53739,"corporation":false,"usgs":true,"family":"Reeves","given":"H.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":459735,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dickinson, J.E.","contributorId":28790,"corporation":false,"usgs":true,"family":"Dickinson","given":"J.E.","email":"","affiliations":[],"preferred":false,"id":459733,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70037608,"text":"70037608 - 2010 - Simulation and analysis of conjunctive use with MODFLOW's farm process","interactions":[],"lastModifiedDate":"2018-09-18T10:19:23","indexId":"70037608","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Simulation and analysis of conjunctive use with MODFLOW's farm process","docAbstract":"The extension of MODFLOW onto the landscape with the Farm Process (MF-FMP) facilitates fully coupled simulation of the use and movement of water from precipitation, streamflow and runoff, groundwater flow, and consumption by natural and agricultural vegetation throughout the hydrologic system at all times. This allows for more complete analysis of conjunctive use water-resource systems than previously possible with MODFLOW by combining relevant aspects of the landscape with the groundwater and surface water components. This analysis is accomplished using distributed cell-by-cell supply-constrained and demand-driven components across the landscape within \" water-balance subregions\" comprised of one or more model cells that can represent a single farm, a group of farms, or other hydrologic or geopolitical entities. Simulation of micro-agriculture in the Pajaro Valley and macro-agriculture in the Central Valley are used to demonstrate the utility of MF-FMP. For Pajaro Valley, the simulation of an aquifer storage and recovery system and related coastal water distribution system to supplant coastal pumpage was analyzed subject to climate variations and additional supplemental sources such as local runoff. For the Central Valley, analysis of conjunctive use from different hydrologic settings of northern and southern subregions shows how and when precipitation, surface water, and groundwater are important to conjunctive use. The examples show that through MF-FMP's ability to simulate natural and anthropogenic components of the hydrologic cycle, the distribution and dynamics of supply and demand can be analyzed, understood, and managed. This analysis of conjunctive use would be difficult without embedding them in the simulation and are difficult to estimate a priori. Journal compilation ?? 2010 National Ground Water Association. No claim to original US government works.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2010.00730.x","issn":"0017467X","usgsCitation":"Hanson, R.T., Schmid, W., Faunt, C., and Lockwood, B., 2010, Simulation and analysis of conjunctive use with MODFLOW's farm process: Ground Water, v. 48, no. 5, p. 674-689, https://doi.org/10.1111/j.1745-6584.2010.00730.x.","startPage":"674","endPage":"689","numberOfPages":"16","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"links":[{"id":218064,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2010.00730.x"},{"id":246044,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"5","noUsgsAuthors":false,"publicationDate":"2010-06-22","publicationStatus":"PW","scienceBaseUri":"505b8fe4e4b08c986b3191d6","contributors":{"authors":[{"text":"Hanson, R. T.","contributorId":91148,"corporation":false,"usgs":true,"family":"Hanson","given":"R.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":461895,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Schmid, W.","contributorId":103479,"corporation":false,"usgs":true,"family":"Schmid","given":"W.","email":"","affiliations":[],"preferred":false,"id":461897,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Faunt, C.C. 0000-0001-5659-7529","orcid":"https://orcid.org/0000-0001-5659-7529","contributorId":103314,"corporation":false,"usgs":true,"family":"Faunt","given":"C.C.","affiliations":[{"id":595,"text":"U.S. Geological Survey","active":false,"usgs":true}],"preferred":false,"id":461896,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lockwood, B.","contributorId":59660,"corporation":false,"usgs":true,"family":"Lockwood","given":"B.","email":"","affiliations":[],"preferred":false,"id":461894,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70037143,"text":"70037143 - 2010 - Sediment discharges during storm flow from proximal urban and rural karst springs, central Kentucky, USA","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037143","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Sediment discharges during storm flow from proximal urban and rural karst springs, central Kentucky, USA","docAbstract":"Since the mid-1990s, various studies have addressed the timing of sediment transport to karst springs during storm flow or the composition and provenance of sediment discharged from springs. However, relatively few studies have focused on the flow thresholds at which sediment is mobilized or total sediment yields across various time scales. We examined each of these topics for a mainly urban spring (Blue Hole) and a rural spring (SP-2) in the Inner Bluegrass region of central Kentucky (USA). Suspended sediment consisted mostly of quartz silt and sand, with lesser amounts of calcite and organic matter. Total suspended sediment (TSS) values measured during storm flow were greater at SP-2 than at Blue Hole. By aggregating data from four storms during 2 years, we found that median suspended-sediment size jumped as Q exceeded ???0.5 m<sup>3</sup>/s for both springs. At Blue Hole, TSS tended to vary with Q and capacity approached 1 g/L, but no systematic relationship between TSS and Q was evident at SP-2. Sediment fluxes from the Blue Hole basin were ???2 orders of magnitude greater for storms in March (2002 and 2004) than September (2002 and 2003). In contrast, sediment fluxes from the SP-2 basin were of similar magnitude in September 2003 and March 2004. The overall range of area-normalized fluxes for both springs, 9.16 ?? 10<sup>-3</sup>-4.45 ?? 10<sup>2</sup> kg/(ha h), overlaps values reported for farm plots and a stream in the Inner Bluegrass region and for other spring basins in the eastern USA and western Europe. Sediment compositions, sizes, and responses to storms in the basins may differ because of land use (e.g., the extent of impervious cover in the Blue Hole basin), basin size (larger for Blue Hole), conduit architecture, which appears to be more complex in the Blue Hole basin, and the impoundment of SP-2, which may have promoted decadal-scale storage of sediment upgradient. ?? 2009 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2009.12.043","issn":"00221694","usgsCitation":"Reed, T., Todd, M.J., Fryar, A., Fogle, A., and Taraba, J., 2010, Sediment discharges during storm flow from proximal urban and rural karst springs, central Kentucky, USA: Journal of Hydrology, v. 383, no. 3-4, p. 280-290, https://doi.org/10.1016/j.jhydrol.2009.12.043.","startPage":"280","endPage":"290","numberOfPages":"11","costCenters":[],"links":[{"id":217048,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2009.12.043"},{"id":244959,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"383","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b8984e4b08c986b316e00","contributors":{"authors":[{"text":"Reed, T.M.","contributorId":95840,"corporation":false,"usgs":true,"family":"Reed","given":"T.M.","email":"","affiliations":[],"preferred":false,"id":459590,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Todd, McFarland J.","contributorId":6340,"corporation":false,"usgs":true,"family":"Todd","given":"McFarland","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":459587,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Fryar, A.E.","contributorId":59928,"corporation":false,"usgs":true,"family":"Fryar","given":"A.E.","affiliations":[],"preferred":false,"id":459589,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Fogle, A.W.","contributorId":96051,"corporation":false,"usgs":true,"family":"Fogle","given":"A.W.","email":"","affiliations":[],"preferred":false,"id":459591,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Taraba, J.L.","contributorId":51062,"corporation":false,"usgs":true,"family":"Taraba","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":459588,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70037641,"text":"70037641 - 2010 - Fine gravel controls hydrologic and erodibility responses to trampling disturbance for coarse-textured soils with weak cyanobacterial crusts","interactions":[],"lastModifiedDate":"2012-03-12T17:22:05","indexId":"70037641","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1198,"text":"Catena","active":true,"publicationSubtype":{"id":10}},"title":"Fine gravel controls hydrologic and erodibility responses to trampling disturbance for coarse-textured soils with weak cyanobacterial crusts","docAbstract":"We compared short-term effects of lug-soled boot trampling disturbance on water infiltration and soil erodibility on coarse-textured soils covered by a mixture of fine gravel and coarse sand over weak cyanobacterially-dominated biological soil crusts. Trampling significantly reduced final infiltration rate and total infiltration and increased sediment generation from small (0.5m2) rainfall simulation plots (p&lt;0.01). Trampling had no effect on time to runoff or time to peak runoff. Trampling had similar effects at sites with both low and very low levels of cyanobacterial biomass, as indicated by chlorophyll a concentrations. We concluded that trampling effects are relatively independent of differences in the relatively low levels of cyanobacterial biomass in this environment. Instead, trampling appears to reduce infiltration by significantly reducing the cover of gravel and coarse sand on the soil surface, facilitating the development of a physical crust during rainfall events. The results of this study underscore the importance of carefully characterizing both soil physical and biological properties to understand how disturbance affects ecosystem processes. ?? 2010.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Catena","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.catena.2010.08.007","issn":"03418162","usgsCitation":"Herrick, J.E., Van Zee, J.W., Belnap, J., Johansen, J., and Remmenga, M., 2010, Fine gravel controls hydrologic and erodibility responses to trampling disturbance for coarse-textured soils with weak cyanobacterial crusts: Catena, v. 83, no. 2-3, p. 119-126, https://doi.org/10.1016/j.catena.2010.08.007.","startPage":"119","endPage":"126","numberOfPages":"8","costCenters":[],"links":[{"id":246072,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":218091,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.catena.2010.08.007"}],"volume":"83","issue":"2-3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a101fe4b0c8380cd53b28","contributors":{"authors":[{"text":"Herrick, J. E.","contributorId":84709,"corporation":false,"usgs":true,"family":"Herrick","given":"J.","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":462047,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Van Zee, J. W.","contributorId":61012,"corporation":false,"usgs":true,"family":"Van Zee","given":"J.","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":462046,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Belnap, J. 0000-0001-7471-2279","orcid":"https://orcid.org/0000-0001-7471-2279","contributorId":23872,"corporation":false,"usgs":true,"family":"Belnap","given":"J.","affiliations":[],"preferred":false,"id":462044,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Johansen, J.R.","contributorId":25773,"corporation":false,"usgs":true,"family":"Johansen","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":462045,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Remmenga, M.","contributorId":13846,"corporation":false,"usgs":true,"family":"Remmenga","given":"M.","email":"","affiliations":[],"preferred":false,"id":462043,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70037658,"text":"70037658 - 2010 - Phosphorus dynamics in soils irrigated with reclaimed waste water or fresh water - A study using oxygen isotopic composition of phosphate","interactions":[],"lastModifiedDate":"2018-10-10T09:59:21","indexId":"70037658","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1760,"text":"Geoderma","active":true,"publicationSubtype":{"id":10}},"title":"Phosphorus dynamics in soils irrigated with reclaimed waste water or fresh water - A study using oxygen isotopic composition of phosphate","docAbstract":"<p><span>Transformations of phosphate (Pi) in different soil fractions were tracked using the stable isotopic composition of oxygen in phosphate (</span><i>δ</i><sup>18</sup><span>O</span><sub>p</sub><span>) and Pi concentrations. Clay soil from Israel was treated with either reclaimed waste water (secondary, low grade) or with fresh water amended with a chemical fertilizer of a known isotopic signature. Changes of&nbsp;</span><i>δ</i><sup>18</sup><span>O</span><sub>p</sub><span>and Pi within different soil fractions, during a month of incubation, elucidate biogeochemical processes in the soil, revealing the biological and the chemical transformation impacting the various P pools. P in the soil solution is affected primarily by enzymatic activity that yields isotopic equilibrium with the water molecules in the soil solution. The dissolved P interacts rapidly with the loosely bound P (extracted by bicarbonate). The oxides and mineral P fractions (extracted by NaOH and HCl, respectively), which are considered as relatively stable pools of P, also exhibited isotopic alterations in the first two weeks after P application, likely related to the activity of microbial populations associated with soil surfaces. Specifically, isotopic depletion which could result from organic P mineralization was followed by isotopic enrichment which could result from preferential biological uptake of depleted P from the mineralized pool. Similar transformations were observed in both soils although transformations related to biological activity were more pronounced in the soil treated with reclaimed waste water compared to the fertilizer treated soil.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.geoderma.2010.07.002","issn":"00167061","usgsCitation":"Zohar, I., Shaviv, A., Young, M., Kendall, C., Silva, S.R., and Paytan, A., 2010, Phosphorus dynamics in soils irrigated with reclaimed waste water or fresh water - A study using oxygen isotopic composition of phosphate: Geoderma, v. 159, no. 1-2, p. 109-121, https://doi.org/10.1016/j.geoderma.2010.07.002.","productDescription":"13 p.","startPage":"109","endPage":"121","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":217978,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.geoderma.2010.07.002"},{"id":245951,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"159","issue":"1-2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a78b7e4b0c8380cd78774","contributors":{"authors":[{"text":"Zohar, I.","contributorId":73858,"corporation":false,"usgs":true,"family":"Zohar","given":"I.","email":"","affiliations":[],"preferred":false,"id":462159,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shaviv, A.","contributorId":19413,"corporation":false,"usgs":true,"family":"Shaviv","given":"A.","email":"","affiliations":[],"preferred":false,"id":462155,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Young, M.","contributorId":57428,"corporation":false,"usgs":true,"family":"Young","given":"M.","affiliations":[],"preferred":false,"id":462157,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kendall, Carol 0000-0002-0247-3405 ckendall@usgs.gov","orcid":"https://orcid.org/0000-0002-0247-3405","contributorId":1462,"corporation":false,"usgs":true,"family":"Kendall","given":"Carol","email":"ckendall@usgs.gov","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":462156,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Silva, Steven R. srsilva@usgs.gov","contributorId":3162,"corporation":false,"usgs":true,"family":"Silva","given":"Steven","email":"srsilva@usgs.gov","middleInitial":"R.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":462158,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Paytan, A.","contributorId":98926,"corporation":false,"usgs":true,"family":"Paytan","given":"A.","affiliations":[],"preferred":false,"id":462160,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70034607,"text":"70034607 - 2010 - Polycyclic aromatic hydrocarbons in soil of the Canadian River floodplain in Oklahoma","interactions":[],"lastModifiedDate":"2018-10-09T11:42:04","indexId":"70034607","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2262,"text":"Journal of Environmental Quality","active":true,"publicationSubtype":{"id":10}},"title":"Polycyclic aromatic hydrocarbons in soil of the Canadian River floodplain in Oklahoma","docAbstract":"<p><span>The accumulation of polycyclic aromatic hydrocarbons (PAH) in soil, plants, and water may impart negative effects on ecosystem and human health. We quantified the concentration and distribution of 41 PAH (n = 32), organic C, total N, and S (n = 140) and investigated PAH sources using a chronosequence of floodplain soils under a natural vegetation succession. Soil samples were collected between 0- and 260-cm depth in bare land (the control), wetland, forest, and grassland areas near a closed municipal landfill and an active asphalt plant (the contaminant sources) in the north bank of the Canadian River near Norman, OK. Principal component, cluster, and correlation analyses were used to investigate the spatial distribution of PAH, in combination with diagnostic ratios to distinguish pyrogenic vs. petrogenic PAH suites. Total PAH concentration (SigmaPAH) had a mean of 1300 ng g(-1), minimum of 16 ng g(-1), and maximum of 12,000 ng g(-1). At 0- to 20-cm depth, SigmaPAH was 3500 +/- 1600 ng g(-1) (mean +/- 1 SE) near the contaminant sources. The most common compounds were nonalkylated, high molecular weight PAH of pyrogenic origin, i.e., fluoranthene (17%), pyrene (14%), phenanthrene (9%), benzo(b)fluoranthene (7%), chrysene (6%), and benzo(a)anthracene (5%). SigmaPAH in the control (130 +/- 23 ng g(-1)) was comparable to reported concentrations for the rural Great Plains. Perylene had a unique distribution pattern suggesting biological inputs. The main PAH contamination mechanisms were likely atmospheric deposition due to asphalt production at the 0- to 20-cm depth and past landfill operations at deeper depths.</span></p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Environmental Quality","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.2134/jeq2009.0270","issn":"00472425","usgsCitation":"Sartori, F., Wade, T., Sericano, J., Mohanty, B., and Smith, K.A., 2010, Polycyclic aromatic hydrocarbons in soil of the Canadian River floodplain in Oklahoma: Journal of Environmental Quality, v. 39, no. 2, p. 568-579, https://doi.org/10.2134/jeq2009.0270.","productDescription":"12 p.","startPage":"568","endPage":"579","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":243661,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215833,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.2134/jeq2009.0270"}],"volume":"39","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a7cfee4b0c8380cd79cbb","contributors":{"authors":[{"text":"Sartori, F.","contributorId":19803,"corporation":false,"usgs":true,"family":"Sartori","given":"F.","email":"","affiliations":[],"preferred":false,"id":446630,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wade, T.L.","contributorId":59198,"corporation":false,"usgs":true,"family":"Wade","given":"T.L.","email":"","affiliations":[],"preferred":false,"id":446632,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sericano, J.L.","contributorId":12661,"corporation":false,"usgs":true,"family":"Sericano","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":446629,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mohanty, B.P.","contributorId":20162,"corporation":false,"usgs":true,"family":"Mohanty","given":"B.P.","email":"","affiliations":[],"preferred":false,"id":446631,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Smith, Karen A.","contributorId":77477,"corporation":false,"usgs":true,"family":"Smith","given":"Karen","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":446633,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70034290,"text":"70034290 - 2010 - Modeling the relations between flow regime components, species traits, and spawning success of fishes in warmwater streams","interactions":[],"lastModifiedDate":"2012-03-12T17:21:46","indexId":"70034290","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1547,"text":"Environmental Management","active":true,"publicationSubtype":{"id":10}},"title":"Modeling the relations between flow regime components, species traits, and spawning success of fishes in warmwater streams","docAbstract":"Modifications to stream hydrologic regimes can have a profound influence on the dynamics of their fish populations. Using hierarchical linear models, we examined the relations between flow regime and young-of-year fish density using fish sampling and discharge data from three different warmwater streams in Illinois, Alabama, and Georgia. We used an information theoretic approach to evaluate the relative support for models describing hypothesized influences of five flow regime components representing: short-term high and low flows; short-term flow stability; and long-term mean flows and flow stability on fish reproductive success during fish spawning and rearing periods. We also evaluated the influence of ten fish species traits on fish reproductive success. Species traits included spawning duration, reproductive strategy, egg incubation rate, swimming locomotion morphology, general habitat preference, and food habits. Model selection results indicated that young-of-year fish density was positively related to short-term high flows during the spawning period and negatively related to flow variability during the rearing period. However, the effect of the flow regime components varied substantially among species, but was related to species traits. The effect of short-term high flows on the reproductive success was lower for species that broadcast their eggs during spawning. Species with cruiser swimming locomotion morphologies (e.g., Micropterus) also were more vulnerable to variable flows during the rearing period. Our models provide insight into the conditions and timing of flows that influence the reproductive success of warmwater stream fishes and may guide decisions related to stream regulation and management. ?? 2010 US Government.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Environmental Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1007/s00267-010-9511-5","issn":"0364152X","usgsCitation":"Craven, S., Peterson, J., Freeman, M.C., Kwak, T., and Irwin, E., 2010, Modeling the relations between flow regime components, species traits, and spawning success of fishes in warmwater streams: Environmental Management, v. 46, no. 2, p. 181-194, https://doi.org/10.1007/s00267-010-9511-5.","startPage":"181","endPage":"194","numberOfPages":"14","costCenters":[],"links":[{"id":216765,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00267-010-9511-5"},{"id":244652,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"2","noUsgsAuthors":false,"publicationDate":"2010-06-18","publicationStatus":"PW","scienceBaseUri":"505a5c4ee4b0c8380cd6fbb5","contributors":{"authors":[{"text":"Craven, S.W.","contributorId":50009,"corporation":false,"usgs":true,"family":"Craven","given":"S.W.","email":"","affiliations":[],"preferred":false,"id":445104,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peterson, J.T.","contributorId":30170,"corporation":false,"usgs":true,"family":"Peterson","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":445103,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Freeman, Mary C. 0000-0001-7615-6923","orcid":"https://orcid.org/0000-0001-7615-6923","contributorId":99659,"corporation":false,"usgs":true,"family":"Freeman","given":"Mary","email":"","middleInitial":"C.","affiliations":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"preferred":false,"id":445106,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Kwak, T.J.","contributorId":104236,"corporation":false,"usgs":true,"family":"Kwak","given":"T.J.","email":"","affiliations":[],"preferred":false,"id":445107,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Irwin, E.","contributorId":95721,"corporation":false,"usgs":true,"family":"Irwin","given":"E.","email":"","affiliations":[],"preferred":false,"id":445105,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70037352,"text":"70037352 - 2010 - Organic intermediates in the anaerobic biodegradation of coal to methane under laboratory conditions","interactions":[],"lastModifiedDate":"2018-10-31T10:46:00","indexId":"70037352","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2958,"text":"Organic Geochemistry","active":true,"publicationSubtype":{"id":10}},"title":"Organic intermediates in the anaerobic biodegradation of coal to methane under laboratory conditions","docAbstract":"<p><span>Organic intermediates in coal fluids produced by anaerobic biodegradation of geopolymers in coal play a key role in the production of methane in natural gas reservoirs. Laboratory biodegradation experiments on sub-bituminous coal from Texas, USA, were conducted using bioreactors to examine the organic intermediates relevant to methane production. Production of methane in the bioreactors was linked to acetate accumulation in bioreactor fluid. Long chain fatty acids, alkanes (C</span><sub>19</sub><span>–C</span><sub>36</sub><span>) and various low molecular weight aromatics, including phenols, also accumulated in the bioreactor fluid and appear to be the primary intermediates in the biodegradation pathway from coal-derived geopolymers to acetate and methane.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.orggeochem.2010.03.005","usgsCitation":"Orem, W.H., Voytek, M.A., Jones, E., Lerch, H.E., Bates, A.L., Corum, M., Warwick, P.D., and Clark, A.C., 2010, Organic intermediates in the anaerobic biodegradation of coal to methane under laboratory conditions: Organic Geochemistry, v. 41, no. 9, p. 997-1000, https://doi.org/10.1016/j.orggeochem.2010.03.005.","productDescription":"4 p.","startPage":"997","endPage":"1000","costCenters":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":245291,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Texas","volume":"41","issue":"9","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a6fc3e4b0c8380cd75c5c","contributors":{"authors":[{"text":"Orem, William H. 0000-0003-4990-0539 borem@usgs.gov","orcid":"https://orcid.org/0000-0003-4990-0539","contributorId":577,"corporation":false,"usgs":true,"family":"Orem","given":"William","email":"borem@usgs.gov","middleInitial":"H.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":460603,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Voytek, Mary A.","contributorId":91943,"corporation":false,"usgs":true,"family":"Voytek","given":"Mary","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":460601,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Jones, Elizabeth J.","contributorId":96791,"corporation":false,"usgs":true,"family":"Jones","given":"Elizabeth J.","affiliations":[],"preferred":false,"id":460604,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lerch, Harry E. tlerch@usgs.gov","contributorId":600,"corporation":false,"usgs":true,"family":"Lerch","given":"Harry","email":"tlerch@usgs.gov","middleInitial":"E.","affiliations":[],"preferred":true,"id":460605,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bates, Anne L. 0000-0002-4875-4675 abates@usgs.gov","orcid":"https://orcid.org/0000-0002-4875-4675","contributorId":2789,"corporation":false,"usgs":true,"family":"Bates","given":"Anne","email":"abates@usgs.gov","middleInitial":"L.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":460600,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Corum, M.D. 0000-0002-9038-3935 mcorum@usgs.gov","orcid":"https://orcid.org/0000-0002-9038-3935","contributorId":2249,"corporation":false,"usgs":true,"family":"Corum","given":"M.D.","email":"mcorum@usgs.gov","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true},{"id":255,"text":"Energy Resources Program","active":true,"usgs":true}],"preferred":true,"id":460599,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Warwick, Peter D. 0000-0002-3152-7783 pwarwick@usgs.gov","orcid":"https://orcid.org/0000-0002-3152-7783","contributorId":762,"corporation":false,"usgs":true,"family":"Warwick","given":"Peter","email":"pwarwick@usgs.gov","middleInitial":"D.","affiliations":[{"id":241,"text":"Eastern Energy Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":460602,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Clark, Arthur C. aclark@usgs.gov","contributorId":2320,"corporation":false,"usgs":true,"family":"Clark","given":"Arthur","email":"aclark@usgs.gov","middleInitial":"C.","affiliations":[],"preferred":true,"id":460598,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70034118,"text":"70034118 - 2010 - The spatial and temporal variability of groundwater recharge in a forested basin in northern Wisconsin","interactions":[],"lastModifiedDate":"2012-03-12T17:21:45","indexId":"70034118","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","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":"The spatial and temporal variability of groundwater recharge in a forested basin in northern Wisconsin","docAbstract":"Recharge varies spatially and temporally as it depends on a wide variety of factors (e.g. vegetation, precipitation, climate, topography, geology, and soil type), making it one of the most difficult, complex, and uncertain hydrologic parameters to quantify. Despite its inherent variability, groundwater modellers, planners, and policy makers often ignore recharge variability and assume a single average recharge value for an entire watershed. Relatively few attempts have been made to quantify or incorporate spatial and temporal recharge variability into water resource planning or groundwater modelling efforts. In this study, a simple, daily soil-water balance model was developed and used to estimate the spatial and temporal distribution of groundwater recharge of the Trout Lake basin of northern Wisconsin for 1996-2000 as a means to quantify recharge variability. For the 5 years of study, annual recharge varied spatially by as much as 18 cm across the basin; vegetation was the predominant control on this variability. Recharge also varied temporally with a threefold annual difference over the 5-year period. Intra-annually, recharge was limited to a few isolated events each year and exhibited a distinct seasonal pattern. The results suggest that ignoring recharge variability may not only be inappropriate, but also, depending on the application, may invalidate model results and predictions for regional and local water budget calculations, water resource management, nutrient cycling, and contaminant transport studies. Recharge is spatially and temporally variable, and should be modelled as such. Copyright ?? 2009 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.7497","issn":"08856087","usgsCitation":"Dripps, W.R., and Bradbury, K.R., 2010, The spatial and temporal variability of groundwater recharge in a forested basin in northern Wisconsin: Hydrological Processes, v. 24, no. 4, p. 383-392, https://doi.org/10.1002/hyp.7497.","startPage":"383","endPage":"392","numberOfPages":"10","costCenters":[],"links":[{"id":216690,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.7497"},{"id":244575,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"4","noUsgsAuthors":false,"publicationDate":"2009-11-16","publicationStatus":"PW","scienceBaseUri":"505bb059e4b08c986b324ddc","contributors":{"authors":[{"text":"Dripps, W. R.","contributorId":27978,"corporation":false,"usgs":true,"family":"Dripps","given":"W.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":444184,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bradbury, K. R.","contributorId":86070,"corporation":false,"usgs":true,"family":"Bradbury","given":"K.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":444185,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70034116,"text":"70034116 - 2010 - Ecosystem effects of environmental flows: Modelling and experimental floods in a dryland river","interactions":[],"lastModifiedDate":"2012-03-12T17:21:45","indexId":"70034116","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1696,"text":"Freshwater Biology","active":true,"publicationSubtype":{"id":10}},"title":"Ecosystem effects of environmental flows: Modelling and experimental floods in a dryland river","docAbstract":"Successful environmental flow prescriptions require an accurate understanding of the linkages among flow events, geomorphic processes and biotic responses. We describe models and results from experimental flow releases associated with an environmental flow program on the Bill Williams River (BWR), Arizona, in arid to semiarid western U.S.A. Two general approaches for improving knowledge and predictions of ecological responses to environmental flows are: (1) coupling physical system models to ecological responses and (2) clarifying empirical relationships between flow and ecological responses through implementation and monitoring of experimental flow releases. We modelled the BWR physical system using: (1) a reservoir operations model to simulate reservoir releases and reservoir water levels and estimate flow through the river system under a range of scenarios, (2) one- and two-dimensional river hydraulics models to estimate stage-discharge relationships at the whole-river and local scales, respectively, and (3) a groundwater model to estimate surface- and groundwater interactions in a large, alluvial valley on the BWR where surface flow is frequently absent. An example of a coupled, hydrology-ecology model is the Ecosystems Function Model, which we used to link a one-dimensional hydraulic model with riparian tree seedling establishment requirements to produce spatially explicit predictions of seedling recruitment locations in a Geographic Information System. We also quantified the effects of small experimental floods on the differential mortality of native and exotic riparian trees, on beaver dam integrity and distribution, and on the dynamics of differentially flow-adapted benthic macroinvertebrate groups. Results of model applications and experimental flow releases are contributing to adaptive flow management on the BWR and to the development of regional environmental flow standards. General themes that emerged from our work include the importance of response thresholds, which are commonly driven by geomorphic thresholds or mediated by geomorphic processes, and the importance of spatial and temporal variation in the effects of flows on ecosystems, which can result from factors such as longitudinal complexity and ecohydrological feedbacks. ?? Published 2009.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Freshwater Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2427.2009.02271.x","issn":"00465070","usgsCitation":"Shafroth, P., Wilcox, A., Lytle, D., Hickey, J., Andersen, D., Beauchamp, V., Hautzinger, A., McMullen, L., and Warner, A., 2010, Ecosystem effects of environmental flows: Modelling and experimental floods in a dryland river: Freshwater Biology, v. 55, no. 1, p. 68-85, https://doi.org/10.1111/j.1365-2427.2009.02271.x.","startPage":"68","endPage":"85","numberOfPages":"18","costCenters":[],"links":[{"id":216660,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2427.2009.02271.x"},{"id":244544,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-12-15","publicationStatus":"PW","scienceBaseUri":"505a059ce4b0c8380cd50e8b","contributors":{"authors":[{"text":"Shafroth, P.B.","contributorId":65041,"corporation":false,"usgs":true,"family":"Shafroth","given":"P.B.","email":"","affiliations":[],"preferred":false,"id":444176,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wilcox, A.C.","contributorId":89720,"corporation":false,"usgs":true,"family":"Wilcox","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":444181,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lytle, D.A.","contributorId":85422,"corporation":false,"usgs":true,"family":"Lytle","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":444179,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Hickey, J.T.","contributorId":57296,"corporation":false,"usgs":true,"family":"Hickey","given":"J.T.","email":"","affiliations":[],"preferred":false,"id":444175,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Andersen, D.C.","contributorId":19119,"corporation":false,"usgs":true,"family":"Andersen","given":"D.C.","email":"","affiliations":[],"preferred":false,"id":444173,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Beauchamp, Vanessa B.","contributorId":76544,"corporation":false,"usgs":true,"family":"Beauchamp","given":"Vanessa B.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":false,"id":444178,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Hautzinger, A.","contributorId":88973,"corporation":false,"usgs":true,"family":"Hautzinger","given":"A.","affiliations":[],"preferred":false,"id":444180,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"McMullen, L.E.","contributorId":51576,"corporation":false,"usgs":true,"family":"McMullen","given":"L.E.","email":"","affiliations":[],"preferred":false,"id":444174,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Warner, A.","contributorId":68137,"corporation":false,"usgs":true,"family":"Warner","given":"A.","email":"","affiliations":[],"preferred":false,"id":444177,"contributorType":{"id":1,"text":"Authors"},"rank":9}]}}
,{"id":70035269,"text":"70035269 - 2010 - A quarter century of declining suspended sediment fluxes in the Mississippi River and the effect of the 1993 flood","interactions":[],"lastModifiedDate":"2012-03-12T17:21:55","indexId":"70035269","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","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":"A quarter century of declining suspended sediment fluxes in the Mississippi River and the effect of the 1993 flood","docAbstract":"Annual fluxes, flow-weighted concentrations and linear least squares trendline calculations for a number of long-term Mississippi River Basin (MRB) sampling sites covering 1981 through 2007, whilst somewhat 'noisy', display long-term patterns of decline. Annual flow-weighted concentration plots display the same long-term patterns of decline, but are less noisy because they reduce/eliminate variations due to interannual discharge differences. The declines appear greatest in the middle MRB, but also are evident elsewhere. The pattern for the lower Ohio River differs and may reflect ongoing construction at the Olmsted lock and dam that began in 1993 and currently is ongoing. The 'Great Flood of 1993' appears to have superimposed a step function (a sharp drop) on the long-term rate of decline in suspended sediment concentrations (SSC), annual fluxes and flow-weighted concentrations in the middle MRB at St Louis and Thebes, Missouri and Vicksburg, Mississippi, and in the lower MRB at St Francisville, Louisiana. Evidence for a step function at other sites is less substantial, but may have occurred. The step function appears to have resulted from losses in available (erodible) sediment, rather than to a reduction in discharge; hence, the MRB appears to be supply limited rather than discharge limited. These evaluations support the need for daily discharge and SSC data collections in the MRB to better address questions regarding long-term trends in sediment-related issues. This is apparent when the results for the Mississippi River at Thebes and St Louis sites are compared with those from other MRB sites where intensive (daily) data collections are lacking. ?? 2009 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.7425","issn":"08856087","usgsCitation":"Horowitz, A.J., 2010, A quarter century of declining suspended sediment fluxes in the Mississippi River and the effect of the 1993 flood: Hydrological Processes, v. 24, no. 1, p. 13-34, https://doi.org/10.1002/hyp.7425.","startPage":"13","endPage":"34","numberOfPages":"22","costCenters":[],"links":[{"id":243038,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215248,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.7425"}],"volume":"24","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-08-18","publicationStatus":"PW","scienceBaseUri":"5059e526e4b0c8380cd46b74","contributors":{"authors":[{"text":"Horowitz, A. J.","contributorId":102066,"corporation":false,"usgs":true,"family":"Horowitz","given":"A.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":449964,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70032698,"text":"70032698 - 2010 - Mixing effects on apparent reaction rates and isotope fractionation during denitrification in a heterogeneous aquifer","interactions":[],"lastModifiedDate":"2018-10-09T10:50:46","indexId":"70032698","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","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":"Mixing effects on apparent reaction rates and isotope fractionation during denitrification in a heterogeneous aquifer","docAbstract":"<p><span>Gradients in contaminant concentrations and isotopic compositions commonly are used to derive reaction parameters for natural attenuation in aquifers. Differences between field‐scale (apparent) estimated reaction rates and isotopic fractionations and local‐scale (intrinsic) effects are poorly understood for complex natural systems. For a heterogeneous alluvial fan aquifer, numerical models and field observations were used to study the effects of physical heterogeneity on reaction parameter estimates. Field measurements included major ions, age tracers, stable isotopes, and dissolved gases. Parameters were estimated for the O</span><sub>2</sub><span><span>&nbsp;</span>reduction rate, denitrification rate, O</span><sub>2</sub><span><span>&nbsp;</span>threshold for denitrification, and stable N isotope fractionation during denitrification. For multiple geostatistical realizations of the aquifer, inverse modeling was used to establish reactive transport simulations that were consistent with field observations and served as a basis for numerical experiments to compare sample‐based estimates of “apparent” parameters with “true“ (intrinsic) values. For this aquifer, non‐Gaussian dispersion reduced the magnitudes of apparent reaction rates and isotope fractionations to a greater extent than Gaussian mixing alone. Apparent and true rate constants and fractionation parameters can differ by an order of magnitude or more, especially for samples subject to slow transport, long travel times, or rapid reactions. The effect of mixing on apparent N isotope fractionation potentially explains differences between previous laboratory and field estimates. Similarly, predicted effects on apparent O</span><sub>2</sub><span>threshold values for denitrification are consistent with previous reports of higher values in aquifers than in the laboratory. These results show that hydrogeological complexity substantially influences the interpretation and prediction of reactive transport.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2009WR008903","usgsCitation":"Green, C.T., Bohlke, J., Bekins, B.A., and Phillips, S.P., 2010, Mixing effects on apparent reaction rates and isotope fractionation during denitrification in a heterogeneous aquifer: Water Resources Research, v. 46, no. 8, Article W08525; 19 p., https://doi.org/10.1029/2009WR008903.","productDescription":"Article W08525; 19 p.","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":476083,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2009wr008903","text":"Publisher Index Page"},{"id":241598,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"8","noUsgsAuthors":false,"publicationDate":"2010-08-13","publicationStatus":"PW","scienceBaseUri":"505a5b86e4b0c8380cd6f5f5","contributors":{"authors":[{"text":"Green, Christopher T. 0000-0002-6480-8194 ctgreen@usgs.gov","orcid":"https://orcid.org/0000-0002-6480-8194","contributorId":1343,"corporation":false,"usgs":true,"family":"Green","given":"Christopher","email":"ctgreen@usgs.gov","middleInitial":"T.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":437513,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bohlke, J.K. 0000-0001-5693-6455 jkbohlke@usgs.gov","orcid":"https://orcid.org/0000-0001-5693-6455","contributorId":191103,"corporation":false,"usgs":true,"family":"Bohlke","given":"J.K.","email":"jkbohlke@usgs.gov","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":437514,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bekins, Barbara A. 0000-0002-1411-6018 babekins@usgs.gov","orcid":"https://orcid.org/0000-0002-1411-6018","contributorId":1348,"corporation":false,"usgs":true,"family":"Bekins","given":"Barbara","email":"babekins@usgs.gov","middleInitial":"A.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":36183,"text":"Hydro-Ecological Interactions Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":437515,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Phillips, Steven P. 0000-0002-5107-868X sphillip@usgs.gov","orcid":"https://orcid.org/0000-0002-5107-868X","contributorId":1506,"corporation":false,"usgs":true,"family":"Phillips","given":"Steven","email":"sphillip@usgs.gov","middleInitial":"P.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":437512,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70033951,"text":"70033951 - 2010 - Spatial variability of steady-state infiltration into a two-layer soil system on burned hillslopes","interactions":[],"lastModifiedDate":"2012-03-12T17:21:33","indexId":"70033951","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Spatial variability of steady-state infiltration into a two-layer soil system on burned hillslopes","docAbstract":"Rainfall-runoff simulations were conducted to estimate the characteristics of the steady-state infiltration rate into 1-m<sup>2</sup> north- and south-facing hillslope plots burned by a wildfire in October 2003. Soil profiles in the plots consisted of a two-layer system composed of an ash on top of sandy mineral soil. Multiple rainfall rates (18.4-51.2 mm h<sup>-1</sup>) were used during 14 short-duration (30 min) and 2 long-duration simulations (2-4 h). Steady state was reached in 7-26 min. Observed spatially-averaged steady-state infiltration rates ranged from 18.2 to 23.8 mm h<sup>-1</sup> for north-facing and from 17.9 to 36.0 mm h<sup>-1</sup> for south-facing plots. Three different theoretical spatial distribution models of steady-state infiltration rate were fit to the measurements of rainfall rate and steady-state discharge to provided estimates of the spatial average (19.2-22.2 mm h<sup>-1</sup>) and the coefficient of variation (0.11-0.40) of infiltration rates, overland flow contributing area (74-90% of the plot area), and infiltration threshold (19.0-26 mm h<sup>-1</sup>). Tensiometer measurements indicated a downward moving pressure wave and suggest that infiltration-excess overland flow is the runoff process on these burned hillslope with a two-layer system. Moreover, the results indicate that the ash layer is wettable, may restrict water flow into the underlying layer, and increase the infiltration threshold; whereas, the underlying mineral soil, though coarser, limits the infiltration rate. These results of the spatial variability of steady-state infiltration can be used to develop physically-based rainfall-runoff models for burned areas with a two-layer soil system. ?? 2010 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2009.12.004","issn":"00221694","usgsCitation":"Kinner, D., and Moody, J.A., 2010, Spatial variability of steady-state infiltration into a two-layer soil system on burned hillslopes: Journal of Hydrology, v. 381, no. 3-4, p. 322-332, https://doi.org/10.1016/j.jhydrol.2009.12.004.","startPage":"322","endPage":"332","numberOfPages":"11","costCenters":[],"links":[{"id":241815,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214122,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2009.12.004"}],"volume":"381","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b94b5e4b08c986b31abff","contributors":{"authors":[{"text":"Kinner, D.A.","contributorId":99265,"corporation":false,"usgs":true,"family":"Kinner","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":443353,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moody, J. A.","contributorId":32930,"corporation":false,"usgs":true,"family":"Moody","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":443352,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70033885,"text":"70033885 - 2010 - In situ measurements of volatile aromatic hydrocarbon biodegradation rates in groundwater","interactions":[],"lastModifiedDate":"2018-10-10T08:28:48","indexId":"70033885","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2233,"text":"Journal of Contaminant Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"In situ measurements of volatile aromatic hydrocarbon biodegradation rates in groundwater","docAbstract":"Benzene and alkylbenzene biodegradation rates and patterns were measured using an in situ microcosm in a crude-oil contaminated aquifer near Bemidji, Minnesota. Benzene-D6, toluene, ethylbenzene, o-, m- and p-xylenes and four pairs of C3- and C4-benzenes were added to an in situ microcosm and studied over a 3-year period. The microcosm allowed for a mass-balance approach and quantification of hydrocarbon biodegradation rates within a well-defined iron-reducing zone of the anoxic plume. Among the BTEX compounds, the apparent order of persistence is ethylbenzene > benzene > m,p-xylenes > o-xylene ≥ toluene. Threshold concentrations were observed for several compounds in the in situ microcosm, below which degradation was not observed, even after hundreds of days. In addition, long lag times were observed before the onset of degradation of benzene or ethylbenzene. The isomer-specific degradation patterns were compared to observations from a multi-year study conducted using data collected from monitoring wells along a flowpath in the contaminant plume. The data were fit with both first-order and Michaelis-Menten models. First-order kinetics provided a good fit for hydrocarbons with starting concentrations below 1 mg/L and Michaelis-Menten kinetics were a better fit when starting concentrations were above 1 mg/L, as was the case for benzene. The biodegradation rate data from this study were also compared to rates from other investigations reported in the literature.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Contaminant Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","publisherLocation":"Amsterdam, Netherlands","doi":"10.1016/j.jconhyd.2009.12.001","issn":"01697722","usgsCitation":"Cozzarelli, I., Bekins, B., Eganhouse, R., Warren, E., and Essaid, H., 2010, In situ measurements of volatile aromatic hydrocarbon biodegradation rates in groundwater: Journal of Contaminant Hydrology, v. 111, no. 1-4, p. 48-64, https://doi.org/10.1016/j.jconhyd.2009.12.001.","productDescription":"17 p.","startPage":"48","endPage":"64","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":241845,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":214151,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jconhyd.2009.12.001"}],"geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -94.94943,47.424564 ], [ -94.94943,47.5269 ], [ -94.799758,47.5269 ], [ -94.799758,47.424564 ], [ -94.94943,47.424564 ] ] ] } } ] }","volume":"111","issue":"1-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a39a7e4b0c8380cd619c6","contributors":{"authors":[{"text":"Cozzarelli, I.M. 0000-0002-5123-1007","orcid":"https://orcid.org/0000-0002-5123-1007","contributorId":22343,"corporation":false,"usgs":true,"family":"Cozzarelli","given":"I.M.","affiliations":[],"preferred":false,"id":443019,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bekins, B.A.","contributorId":98309,"corporation":false,"usgs":true,"family":"Bekins","given":"B.A.","email":"","affiliations":[],"preferred":false,"id":443021,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Eganhouse, R.P.","contributorId":67555,"corporation":false,"usgs":true,"family":"Eganhouse","given":"R.P.","email":"","affiliations":[],"preferred":false,"id":443020,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Warren, E.","contributorId":15360,"corporation":false,"usgs":true,"family":"Warren","given":"E.","email":"","affiliations":[],"preferred":false,"id":443017,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Essaid, H.I.","contributorId":22342,"corporation":false,"usgs":true,"family":"Essaid","given":"H.I.","email":"","affiliations":[],"preferred":false,"id":443018,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70037566,"text":"70037566 - 2010 - Future dryness in the Southwest US and the hydrology of the early 21st century drought","interactions":[],"lastModifiedDate":"2012-03-12T17:21:58","indexId":"70037566","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3165,"text":"Proceedings of the National Academy of Sciences of the United States of America","active":true,"publicationSubtype":{"id":10}},"title":"Future dryness in the Southwest US and the hydrology of the early 21st century drought","docAbstract":"Recently the Southwest has experienced a spate of dryness, which presents a challenge to the sustainability of current water use by human and natural systems in the region. In the Colorado River Basin, the early 21st century drought has been the most extreme in over a century of Colorado River flows, and might occur in any given century with probability of only 60%. However, hydrological model runs from downscaled Intergovernmental Panel on Climate Change Fourth Assessment climate change simulations suggest that the region is likely to become drier and experience more severe droughts than this. In the latter half of the 21st century the models produced considerably greater drought activity, particularly in the Colorado River Basin, as judged from soil moisture anomalies and other hydrological measures. As in the historical record, most of the simulated extreme droughts build up and persist over many years. Durations of depleted soil moisture over the historical record ranged from 4 to 10 years, but in the 21st century simulations, some of the dry events persisted for 12 years or more. Summers during the observed early 21st century drought were remarkably warm, a feature also evident in many simulated droughts of the 21st century. These severe future droughts are aggravated by enhanced, globally warmed temperatures that reduce spring snowpack and late spring and summer soil moisture. As the climate continues to warm and soil moisture deficits accumulate beyond historical levels, the model simulations suggest that sustaining water supplies in parts of the Southwest will be a challenge.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Proceedings of the National Academy of Sciences of the United States of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1073/pnas.0912391107","issn":"00278424","usgsCitation":"Cayan, D., Das, T., Pierce, D., Barnett, T., Tyree, M., and Gershunova, A., 2010, Future dryness in the Southwest US and the hydrology of the early 21st century drought: Proceedings of the National Academy of Sciences of the United States of America, v. 107, no. 50, p. 21271-21276, https://doi.org/10.1073/pnas.0912391107.","startPage":"21271","endPage":"21276","numberOfPages":"6","costCenters":[],"links":[{"id":475782,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://europepmc.org/articles/pmc3003012","text":"External Repository"},{"id":217988,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1073/pnas.0912391107"},{"id":245963,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"107","issue":"50","noUsgsAuthors":false,"publicationDate":"2010-12-07","publicationStatus":"PW","scienceBaseUri":"505a1431e4b0c8380cd5494c","contributors":{"authors":[{"text":"Cayan, D.R.","contributorId":25961,"corporation":false,"usgs":false,"family":"Cayan","given":"D.R.","email":"","affiliations":[{"id":16196,"text":"Scripps Institution of Oceanography, La Jolla, CA","active":true,"usgs":false}],"preferred":false,"id":461618,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Das, T.","contributorId":99383,"corporation":false,"usgs":true,"family":"Das","given":"T.","email":"","affiliations":[],"preferred":false,"id":461622,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Pierce, D.W.","contributorId":23342,"corporation":false,"usgs":true,"family":"Pierce","given":"D.W.","email":"","affiliations":[],"preferred":false,"id":461617,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Barnett, T.P.","contributorId":54763,"corporation":false,"usgs":true,"family":"Barnett","given":"T.P.","email":"","affiliations":[],"preferred":false,"id":461620,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Tyree, Mary","contributorId":85414,"corporation":false,"usgs":true,"family":"Tyree","given":"Mary","email":"","affiliations":[],"preferred":false,"id":461621,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Gershunova, A.","contributorId":35993,"corporation":false,"usgs":true,"family":"Gershunova","given":"A.","email":"","affiliations":[],"preferred":false,"id":461619,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70035302,"text":"70035302 - 2010 - Environmental controls on drainage behavior of an ephemeral stream","interactions":[],"lastModifiedDate":"2018-04-02T15:24:40","indexId":"70035302","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3478,"text":"Stochastic Environmental Research and Risk Assessment","active":true,"publicationSubtype":{"id":10}},"title":"Environmental controls on drainage behavior of an ephemeral stream","docAbstract":"Streambed drainage was measured at the cessation of 26 ephemeral streamflow events in Rillito Creek, Tucson, Arizona from August 2000 to June 2002 using buried time domain reflectometry (TDR) probes. An unusual drainage response was identified, which was characterized by sharp drainage from saturation to near field capacity at each depth with an increased delay between depths. We simulated the drainage response using a variably saturated numerical flow model representing a two-layer system with a high permeability layer overlying a lower permeability layer. Both the observed data and the numerical simulation show a strong correlation between the drainage velocity and the temperature of the stream water. A linear combination of temperature and the no-flow period preceding flow explained about 90% of the measured variations in drainage velocity. Evaluation of this correlative relationship with the one-dimensional numerical flow model showed that the observed temperature fluctuations could not reproduce the magnitude of variation in the observed drainage velocity. Instead, the model results indicated that flow duration exerts the most control on drainage velocity, with the drainage velocity decreasing nonlinearly with increasing flow duration. These findings suggest flow duration is a primary control of water availability for plant uptake in near surface sediments of an ephemeral stream, an important finding for estimating the ecological risk of natural or engineered changes to streamflow patterns. Correlative analyses of soil moisture data, although easy and widely used, can result in erroneous conclusions of hydrologic cause—effect relationships, and demonstrating the need for joint physically-based numerical modeling and data synthesis for hypothesis testing to support quantitative risk analysis.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Stochastic Environmental Research and Risk Assessment","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Springer","publisherLocation":"http://www.springer.com","doi":"10.1007/s00477-010-0398-8","issn":"14363240","usgsCitation":"Blasch, K., Ferre, T., and Vrugt, J., 2010, Environmental controls on drainage behavior of an ephemeral stream: Stochastic Environmental Research and Risk Assessment, v. 24, no. 7, p. 1077-1087, https://doi.org/10.1007/s00477-010-0398-8.","productDescription":"11 p.","startPage":"1077","endPage":"1087","costCenters":[{"id":128,"text":"Arizona Water Science Center","active":true,"usgs":true}],"links":[{"id":243041,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":215251,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1007/s00477-010-0398-8"}],"country":"United States","state":"Arizona","city":"Tucson","geographicExtents":"{ \"type\": \"FeatureCollection\", \"features\": [ { \"type\": \"Feature\", \"properties\": {}, \"geometry\": { \"type\": \"Polygon\", \"coordinates\": [ [ [ -111.0594,31.9917 ], [ -111.0594,32.3202 ], [ -110.7082,32.3202 ], [ -110.7082,31.9917 ], [ -111.0594,31.9917 ] ] ] } } ] }","volume":"24","issue":"7","noUsgsAuthors":false,"publicationDate":"2010-04-27","publicationStatus":"PW","scienceBaseUri":"505a09b5e4b0c8380cd5201f","contributors":{"authors":[{"text":"Blasch, K.W.","contributorId":29877,"corporation":false,"usgs":true,"family":"Blasch","given":"K.W.","affiliations":[],"preferred":false,"id":450088,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ferre, T.P.A.","contributorId":196167,"corporation":false,"usgs":false,"family":"Ferre","given":"T.P.A.","email":"","affiliations":[],"preferred":false,"id":450089,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Vrugt, J.A.","contributorId":77378,"corporation":false,"usgs":true,"family":"Vrugt","given":"J.A.","affiliations":[],"preferred":false,"id":450090,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70037323,"text":"70037323 - 2010 - Snowmelt hydrograph interpretation: Revealing watershed scale hydrologic characteristics of the Yellowstone volcanic plateau","interactions":[],"lastModifiedDate":"2012-03-12T17:22:11","indexId":"70037323","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2342,"text":"Journal of Hydrology","active":true,"publicationSubtype":{"id":10}},"title":"Snowmelt hydrograph interpretation: Revealing watershed scale hydrologic characteristics of the Yellowstone volcanic plateau","docAbstract":"Snowmelt hydrograph analysis and groundwater age dates of cool water springs on the Yellowstone volcanic plateau provide evidence of high volumes of groundwater circulation in watersheds comprised of quaternary Yellowstone volcanics. Ratios of maximum to minimum mean daily discharge and average recession indices are calculated for watersheds within and surrounding the Yellowstone volcanic plateau. A model for snowmelt recession is used to separate groundwater discharge from overland runoff, and compare groundwater systems. Hydrograph signal interpretation is corroborated with chlorofluorocarbon (CFC) and tritium concentrations in cool water springs on the Yellowstone volcanic plateau. Hydrograph parameters show a spatial pattern correlated with watershed geology. Watersheds comprised dominantly of quaternary Yellowstone volcanics are characterized by slow streamflow recession, low maximum to minimum flow ratios. Cool springs sampled within the Park contain CFC's and tritium and have apparent CFC age dates that range from about 50 years to modern. Watersheds comprised of quaternary Yellowstone volcanics have a large volume of active groundwater circulation. A large, advecting groundwater field would be the dominant mechanism for mass and energy transport in the shallow crust of the Yellowstone volcanic plateau, and thus control the Yellowstone hydrothermal system. ?? 2009 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Hydrology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.jhydrol.2009.12.037","issn":"00221694","usgsCitation":"Payton, G., Susong, D., Kip, S.D., and Heasler, H., 2010, Snowmelt hydrograph interpretation: Revealing watershed scale hydrologic characteristics of the Yellowstone volcanic plateau: Journal of Hydrology, v. 383, no. 3-4, p. 209-222, https://doi.org/10.1016/j.jhydrol.2009.12.037.","startPage":"209","endPage":"222","numberOfPages":"14","costCenters":[],"links":[{"id":245353,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":217407,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.jhydrol.2009.12.037"}],"volume":"383","issue":"3-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b91b8e4b08c986b319a67","contributors":{"authors":[{"text":"Payton, Gardner W.","contributorId":87395,"corporation":false,"usgs":true,"family":"Payton","given":"Gardner W.","affiliations":[],"preferred":false,"id":460474,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Susong, D. D.","contributorId":12868,"corporation":false,"usgs":true,"family":"Susong","given":"D. D.","affiliations":[],"preferred":false,"id":460473,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kip, Solomon D.","contributorId":107484,"corporation":false,"usgs":true,"family":"Kip","given":"Solomon","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":460475,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Heasler, H.","contributorId":7818,"corporation":false,"usgs":true,"family":"Heasler","given":"H.","email":"","affiliations":[],"preferred":false,"id":460472,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70035583,"text":"70035583 - 2010 - Causes for the decline of suspended-sediment discharge in the Mississippi River system, 1940-2007","interactions":[],"lastModifiedDate":"2012-03-12T17:21:50","indexId":"70035583","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","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":"Causes for the decline of suspended-sediment discharge in the Mississippi River system, 1940-2007","docAbstract":"Before 1900, the Missouri-Mississippi River system transported an estimated 400 million metric tons per year of sediment from the interior of the United States to coastal Louisiana. During the last two decades (1987-2006), this transport has averaged 145 million metric tons per year. The cause for this substantial decrease in sediment has been attributed to the trapping characteristics of dams constructed on the muddy part of the Missouri River during the 1950s. However, reexamination of more than 60 years of water- and sediment-discharge data indicates that the dams alone are not the sole cause. These dams trap about 100-150 million metric tons per year, which represent about half the decrease in sediment discharge near the mouth of the Mississippi. Changes in relations between water discharge and suspended-sediment concentration suggest that the Missouri-Mississippi has been transformed from a transport-limited to a supply-limited system. Thus, other engineering activities such as meander cutoffs, river-training structures, and bank revetments as well as soil erosion controls have trapped sediment, eliminated sediment sources, or protected sediment that was once available for transport episodically throughout the year. Removing major engineering structures such as dams probably would not restore sediment discharges to pre-1900 state, mainly because of the numerous smaller engineering structures and other soil-retention works throughout the Missouri-Mississippi system. ?? 2009 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.7477","issn":"08856087","usgsCitation":"Meade, R., and Moody, J.A., 2010, Causes for the decline of suspended-sediment discharge in the Mississippi River system, 1940-2007: Hydrological Processes, v. 24, no. 1, p. 35-49, https://doi.org/10.1002/hyp.7477.","startPage":"35","endPage":"49","numberOfPages":"15","costCenters":[],"links":[{"id":216452,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.7477"},{"id":244323,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"24","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-10-13","publicationStatus":"PW","scienceBaseUri":"5059f3d2e4b0c8380cd4b9aa","contributors":{"authors":[{"text":"Meade, R.H.","contributorId":27449,"corporation":false,"usgs":true,"family":"Meade","given":"R.H.","email":"","affiliations":[],"preferred":false,"id":451332,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Moody, J. A.","contributorId":32930,"corporation":false,"usgs":true,"family":"Moody","given":"J.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":451333,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70037480,"text":"70037480 - 2010 - An approach to quantify sources, seasonal change, and biogeochemical processes affecting metal loading in streams: Facilitating decisions for remediation of mine drainage","interactions":[],"lastModifiedDate":"2018-10-09T10:16:02","indexId":"70037480","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","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":"An approach to quantify sources, seasonal change, and biogeochemical processes affecting metal loading in streams: Facilitating decisions for remediation of mine drainage","docAbstract":"Historical mining has left complex problems in catchments throughout the world. Land managers are faced with making cost-effective plans to remediate mine influences. Remediation plans are facilitated by spatial mass-loading profiles that indicate the locations of metal mass-loading, seasonal changes, and the extent of biogeochemical processes. Field-scale experiments during both low- and high-flow conditions and time-series data over diel cycles illustrate how this can be accomplished. A low-flow experiment provided spatially detailed loading profiles to indicate where loading occurred. For example, SO<sub>4</sub><sup>2 -</sup> was principally derived from sources upstream from the study reach, but three principal locations also were important for SO<sub>4</sub><sup>2 -</sup> loading within the reach. During high-flow conditions, Lagrangian sampling provided data to interpret seasonal changes and indicated locations where snowmelt runoff flushed metals to the stream. Comparison of metal concentrations between the low- and high-flow experiments indicated substantial increases in metal loading at high flow, but little change in metal concentrations, showing that toxicity at the most downstream sampling site was not substantially greater during snowmelt runoff. During high-flow conditions, a detailed temporal sampling at fixed sites indicated that Zn concentration more than doubled during the diel cycle. Monitoring programs must account for diel variation to provide meaningful results. Mass-loading studies during different flow conditions and detailed time-series over diel cycles provide useful scientific support for stream management decisions.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Applied Geochemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.apgeochem.2010.02.005","issn":"08832927","usgsCitation":"Kimball, B.A., Runkel, R., and Walton-Day, K., 2010, An approach to quantify sources, seasonal change, and biogeochemical processes affecting metal loading in streams: Facilitating decisions for remediation of mine drainage: Applied Geochemistry, v. 25, no. 5, p. 728-740, https://doi.org/10.1016/j.apgeochem.2010.02.005.","startPage":"728","endPage":"740","numberOfPages":"13","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":217125,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.apgeochem.2010.02.005"},{"id":245042,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"25","issue":"5","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea0ce4b0c8380cd485d8","contributors":{"authors":[{"text":"Kimball, B. A.","contributorId":87583,"corporation":false,"usgs":false,"family":"Kimball","given":"B.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":461259,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Runkel, R.L.","contributorId":97529,"corporation":false,"usgs":true,"family":"Runkel","given":"R.L.","affiliations":[],"preferred":false,"id":461260,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Walton-Day, K.","contributorId":14054,"corporation":false,"usgs":true,"family":"Walton-Day","given":"K.","affiliations":[],"preferred":false,"id":461258,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035390,"text":"70035390 - 2010 - A rain splash transport equation assimilating field and laboratory measurements","interactions":[],"lastModifiedDate":"2012-03-12T17:21:56","indexId":"70035390","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","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":"A rain splash transport equation assimilating field and laboratory measurements","docAbstract":"Process-based models of hillslope evolution require transport equations relating sediment flux to its major controls. An equation for rain splash transport in the absence of overland flow was constructed by modifying an approach developed by Reeve (1982) and parameterizing it with measurements from single-drop laboratory experiments and simulated rainfall on a grassland in East Africa. The equation relates rain splash to hillslope gradient, the median raindrop diameter of a storm, and ground cover density; the effect of soil texture on detachability can be incorporated from other published results. The spatial and temporal applicability of such an equation for rain splash transport in the absence of overland flow on uncultivated hillslopes can be estimated from hydrological calculations. The predicted transport is lower than landscape-averaged geologic erosion rates from Kenya but is large enough to modify short, slowly eroding natural hillslopes as well as microtopographic interrill surfaces between which overland flow transports the mobilized sediment. Copyright 2010 by the American Geophysical Union. Copyright 2010 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":"10.1029/2009JF001302","issn":"01480227","usgsCitation":"Dunne, T., Malmon, D., and Mudd, S., 2010, A rain splash transport equation assimilating field and laboratory measurements: Journal of Geophysical Research F: Earth Surface, v. 115, no. 1, https://doi.org/10.1029/2009JF001302.","costCenters":[],"links":[{"id":475804,"rank":10000,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2009jf001302","text":"Publisher Index Page"},{"id":215102,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1029/2009JF001302"},{"id":242876,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"115","issue":"1","noUsgsAuthors":false,"publicationDate":"2010-01-07","publicationStatus":"PW","scienceBaseUri":"5059e528e4b0c8380cd46b84","contributors":{"authors":[{"text":"Dunne, T.","contributorId":25695,"corporation":false,"usgs":true,"family":"Dunne","given":"T.","email":"","affiliations":[],"preferred":false,"id":450431,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Malmon, D.V.","contributorId":22960,"corporation":false,"usgs":true,"family":"Malmon","given":"D.V.","affiliations":[],"preferred":false,"id":450430,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Mudd, S.M.","contributorId":19377,"corporation":false,"usgs":true,"family":"Mudd","given":"S.M.","affiliations":[],"preferred":false,"id":450429,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70035391,"text":"70035391 - 2010 - Theory, methods and tools for determining environmental flows for riparian vegetation: Riparian vegetation-flow response guilds","interactions":[],"lastModifiedDate":"2012-03-12T17:21:56","indexId":"70035391","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1696,"text":"Freshwater Biology","active":true,"publicationSubtype":{"id":10}},"title":"Theory, methods and tools for determining environmental flows for riparian vegetation: Riparian vegetation-flow response guilds","docAbstract":"Riparian vegetation composition, structure and abundance are governed to a large degree by river flow regime and flow-mediated fluvial processes. Streamflow regime exerts selective pressures on riparian vegetation, resulting in adaptations (trait syndromes) to specific flow attributes. Widespread modification of flow regimes by humans has resulted in extensive alteration of riparian vegetation communities. Some of the negative effects of altered flow regimes on vegetation may be reversed by restoring components of the natural flow regime. 2. Models have been developed that quantitatively relate components of the flow regime to attributes of riparian vegetation at the individual, population and community levels. Predictive models range from simple statistical relationships, to more complex stochastic matrix population models and dynamic simulation models. Of the dozens of predictive models reviewed here, most treat one or a few species, have many simplifying assumptions such as stable channel form, and do not specify the time-scale of response. In many cases, these models are very effective in developing alternative streamflow management plans for specific river reaches or segments but are not directly transferable to other rivers or other regions. 3. A primary goal in riparian ecology is to develop general frameworks for prediction of vegetation response to changing environmental conditions. The development of riparian vegetation-flow response guilds offers a framework for transferring information from rivers where flow standards have been developed to maintain desirable vegetation attributes, to rivers with little or no existing information. 4. We propose to organise riparian plants into non-phylogenetic groupings of species with shared traits that are related to components of hydrologic regime: life history, reproductive strategy, morphology, adaptations to fluvial disturbance and adaptations to water availability. Plants from any river or region may be grouped into these guilds and related to hydrologic attributes of a specific class of river using probabilistic response curves. 5. Probabilistic models based on riparian response guilds enable prediction of the likelihood of change in each of the response guilds given projected changes in flow, and facilitate examination of trade-offs and risks associated with various flow management strategies. Riparian response guilds can be decomposed to the species level for individual projects or used to develop flow management guidelines for regional water management plans. ?? 2009 Published.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Freshwater Biology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1365-2427.2009.02206.x","issn":"00465070","usgsCitation":"Merritt, D., Scott, M.L., Leroy, P.N., Auble, G., and Lytle, D., 2010, Theory, methods and tools for determining environmental flows for riparian vegetation: Riparian vegetation-flow response guilds: Freshwater Biology, v. 55, no. 1, p. 206-225, https://doi.org/10.1111/j.1365-2427.2009.02206.x.","startPage":"206","endPage":"225","numberOfPages":"20","costCenters":[],"links":[{"id":215103,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1365-2427.2009.02206.x"},{"id":242877,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"55","issue":"1","noUsgsAuthors":false,"publicationDate":"2009-12-15","publicationStatus":"PW","scienceBaseUri":"505bb204e4b08c986b325554","contributors":{"authors":[{"text":"Merritt, D.M.","contributorId":11025,"corporation":false,"usgs":true,"family":"Merritt","given":"D.M.","email":"","affiliations":[],"preferred":false,"id":450432,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Scott, M. L.","contributorId":75090,"corporation":false,"usgs":true,"family":"Scott","given":"M.","middleInitial":"L.","affiliations":[],"preferred":false,"id":450434,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Leroy, Poff N.","contributorId":108330,"corporation":false,"usgs":true,"family":"Leroy","given":"Poff","email":"","middleInitial":"N.","affiliations":[],"preferred":false,"id":450436,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Auble, G.T.","contributorId":19505,"corporation":false,"usgs":true,"family":"Auble","given":"G.T.","email":"","affiliations":[],"preferred":false,"id":450433,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lytle, D.A.","contributorId":85422,"corporation":false,"usgs":true,"family":"Lytle","given":"D.A.","email":"","affiliations":[],"preferred":false,"id":450435,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
]}