{"pageNumber":"206","pageRowStart":"5125","pageSize":"25","recordCount":16505,"records":[{"id":70179467,"text":"70179467 - 2010 - Multiple well-shutdown tests and site-scale flow simulation in fractured rocks","interactions":[],"lastModifiedDate":"2018-10-09T10:49:15","indexId":"70179467","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3825,"text":"Groundwater","active":true,"publicationSubtype":{"id":10}},"title":"Multiple well-shutdown tests and site-scale flow simulation in fractured rocks","docAbstract":"<p><span>A new method was developed for conducting aquifer tests in fractured-rock flow systems that have a pump-and-treat (P&amp;T) operation for containing and removing groundwater contaminants. The method involves temporary shutdown of individual pumps in wells of the P&amp;T system. Conducting aquifer tests in this manner has several advantages, including (1) no additional contaminated water is withdrawn, and (2) hydraulic containment of contaminants remains largely intact because pumping continues at most wells. The well-shutdown test method was applied at the former Naval Air Warfare Center (NAWC), West Trenton, New Jersey, where a P&amp;T operation is designed to contain and remove trichloroethene and its daughter products in the dipping fractured sedimentary rocks underlying the site. The detailed site-scale subsurface geologic stratigraphy, a three-dimensional MODFLOW model, and inverse methods in UCODE_2005 were used to analyze the shutdown tests. In the model, a deterministic method was used for representing the highly heterogeneous hydraulic conductivity distribution and simulations were conducted using an equivalent porous media method. This approach was very successful for simulating the shutdown tests, contrary to a common perception that flow in fractured rocks must be simulated using a stochastic or discrete fracture representation of heterogeneity. Use of inverse methods to simultaneously calibrate the model to the multiple shutdown tests was integral to the effectiveness of the approach.</span></p>","language":"English","publisher":"Wiley","doi":"10.1111/j.1745-6584.2009.00651.x","usgsCitation":"Tiedeman, C.R., Lacombe, P., and Goode, D., 2010, Multiple well-shutdown tests and site-scale flow simulation in fractured rocks: Groundwater, v. 48, no. 3, p. 401-415, https://doi.org/10.1111/j.1745-6584.2009.00651.x.","productDescription":"15 p.","startPage":"401","endPage":"415","ipdsId":"IP-014165","costCenters":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":332770,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"48","issue":"3","noUsgsAuthors":false,"publicationDate":"2010-04-28","publicationStatus":"PW","scienceBaseUri":"586cc698e4b0f5ce109fa95b","contributors":{"authors":[{"text":"Tiedeman, Claire R. 0000-0002-0128-3685 tiedeman@usgs.gov","orcid":"https://orcid.org/0000-0002-0128-3685","contributorId":196777,"corporation":false,"usgs":true,"family":"Tiedeman","given":"Claire","email":"tiedeman@usgs.gov","middleInitial":"R.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":657371,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Lacombe, Pierre J. placombe@usgs.gov","contributorId":2486,"corporation":false,"usgs":true,"family":"Lacombe","given":"Pierre J.","email":"placombe@usgs.gov","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":false,"id":657372,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Goode, Daniel J. 0000-0002-8527-2456 djgoode@usgs.gov","orcid":"https://orcid.org/0000-0002-8527-2456","contributorId":2433,"corporation":false,"usgs":true,"family":"Goode","given":"Daniel J.","email":"djgoode@usgs.gov","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":false,"id":657373,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}}
,{"id":70180890,"text":"70180890 - 2010 - Restoration and revegetation associated with control of saltcedar and Russian olive: Chapter 7","interactions":[{"subject":{"id":70180890,"text":"70180890 - 2010 - Restoration and revegetation associated with control of saltcedar and Russian olive: Chapter 7","indexId":"70180890","publicationYear":"2010","noYear":false,"title":"Restoration and revegetation associated with control of saltcedar and Russian olive: Chapter 7"},"predicate":"IS_PART_OF","object":{"id":98353,"text":"sir20095247 - 2010 - Saltcedar and Russian Olive Control Demonstration Act Science Assessment","indexId":"sir20095247","publicationYear":"2010","noYear":false,"title":"Saltcedar and Russian Olive Control Demonstration Act Science Assessment"},"id":1}],"isPartOf":{"id":98353,"text":"sir20095247 - 2010 - Saltcedar and Russian Olive Control Demonstration Act Science Assessment","indexId":"sir20095247","publicationYear":"2010","noYear":false,"title":"Saltcedar and Russian Olive Control Demonstration Act Science Assessment"},"lastModifiedDate":"2017-02-06T15:36:33","indexId":"70180890","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Restoration and revegetation associated with control of saltcedar and Russian olive: Chapter 7","docAbstract":"<p>Rationales for controlling or eliminating saltcedar and Russian olive from sites, river reaches, or entire streams include implicit or explicit assumptions that natural recovery or applied restoration of native plant communities will follow exotic plant removal (McDaniel and Taylor, 2003; Quimby and others, 2003). The vegetation that replaces saltcedar and Russian olive after treatment (“replacement vegetation”), with or without restoration actions, strongly influences the extent to which project objectives are successfully met. It is often assumed or implied that saltcedar and Russian olive removal alone is “restoration,” and many reports equate restoration success with areal extent of nonnative plants treated (for example, Duncan and others, 1993). However, removal of nonnative species alone does not generally constitute restoration. In this chapter, the term “restoration” refers to conversion of saltcedar- and Russian olive-dominated sites to a replacement vegetation type that achieves specific management goals and helps return parts of the system to a desired state. The degree to which a site is “restored” following removal of saltcedar or Russian olive typically depends upon a range of factors, such as (1) the site’s potential for restoration (such as extant soil conditions, site hydrology), (2) the direct and indirect effects of removal (for example, mechanical impacts to the site, effects of herbicides on nontarget vegetation), (3) the efficacy of restoration activities (for example, grading, reseeding, pole planting), and (4) the maintenance of processes that support native vegetation and prevent re-colonization by nonnative communities over the long term.</p><p>This chapter summarizes and synthesizes the published literature on the topic of restoring native riparian vegetation following saltcedar and Russian olive control or removal. Most of the studies reviewed here are from saltcedar removal, revegetation, and river restoration projects in semiarid and arid parts of the Western United States. The paucity of literature on Russian olive prevents thorough evaluation of specific considerations for restoration following Russian olive removal; however, a few field studies are highlighted. Furthermore, the basic principles of restoration following vegetation removal and the considerations and lessons learned from saltcedar case studies are broadly applicable to sites across the Western United States. We begin with a brief discussion of planning and objective setting. Next, we discuss site factors and context, which are important to consider when selecting and prioritizing sites for restoration. We then review and synthesize the literature on restoration approaches and methods or combinations of methods to apply to particular sites. Throughout this chapter, we highlight what is known on the topics of restoring soils, vegetation, and site conditions following nonnative species removal, as well as future research needs.</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Saltcedar and Russian Olive Control Demonstration Act Science Assessment (Scientific Investigations Report 2009–5247)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Shafroth, P.B., Merritt, D.M., Beauchamp, V., and Lair, K.D., 2010, Restoration and revegetation associated with control of saltcedar and Russian olive: Chapter 7, chap. <i>of</i> Saltcedar and Russian Olive Control Demonstration Act Science Assessment (Scientific Investigations Report 2009–5247), p. 117-136.","productDescription":"20 p.","startPage":"117","endPage":"136","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":334854,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":334853,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2009/5247/pdf/SIR09-5247.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58999943e4b0efcedb71a092","contributors":{"authors":[{"text":"Shafroth, Patrick B. 0000-0002-6064-871X shafrothp@usgs.gov","orcid":"https://orcid.org/0000-0002-6064-871X","contributorId":2000,"corporation":false,"usgs":true,"family":"Shafroth","given":"Patrick","email":"shafrothp@usgs.gov","middleInitial":"B.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":662725,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Merritt, David M.","contributorId":95976,"corporation":false,"usgs":true,"family":"Merritt","given":"David","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":662726,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"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":662727,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lair, Kenneth D.","contributorId":177077,"corporation":false,"usgs":false,"family":"Lair","given":"Kenneth","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":662728,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70180889,"text":"70180889 - 2010 - Saltcedar and Russian olive interactions with wildlife: Chapter 4","interactions":[{"subject":{"id":70180889,"text":"70180889 - 2010 - Saltcedar and Russian olive interactions with wildlife: Chapter 4","indexId":"70180889","publicationYear":"2010","noYear":false,"title":"Saltcedar and Russian olive interactions with wildlife: Chapter 4"},"predicate":"IS_PART_OF","object":{"id":98353,"text":"sir20095247 - 2010 - Saltcedar and Russian Olive Control Demonstration Act Science Assessment","indexId":"sir20095247","publicationYear":"2010","noYear":false,"title":"Saltcedar and Russian Olive Control Demonstration Act Science Assessment"},"id":1}],"isPartOf":{"id":98353,"text":"sir20095247 - 2010 - Saltcedar and Russian Olive Control Demonstration Act Science Assessment","indexId":"sir20095247","publicationYear":"2010","noYear":false,"title":"Saltcedar and Russian Olive Control Demonstration Act Science Assessment"},"lastModifiedDate":"2017-02-06T15:59:15","indexId":"70180889","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Saltcedar and Russian olive interactions with wildlife: Chapter 4","docAbstract":"<p>Riparian areas of flood plains typically provide a mosaic of productive habitats (Stanford and others, 2005; Latterell and others, 2006) capable of supporting many wildlife species, particularly in the arid and semiarid Western United States. The establishment of nonnative invasive plants can alter riparian habitat by inhibiting native plant recruitment and by increasing the risk of wildfire (Howe and Knopf, 1991; Busch and Smith, 1995). However, the effects of nonnative plants are not necessarily always negative. Many wildlife species will use the exotic plants to some extent, especially when mixed with native vegetation (van Riper and others, 2008), but overall, species of wildlife exhibit a negative or neutral response to exotic habitat. In many areas of the Western United States where riparian systems have been degraded via anthropogenic activities (for example, flood control or groundwater pumping), native vegetation may have difficulty persisting and nonnative vegetation may provide the only available habitat for some species of wildlife (Katz and Shafroth, 2003; Stromberg and others, 2007). Therefore, where possible, the ultimate goal of ecological restoration activities should be the reestablishment of native riparian plant communities and a return to more natural hydrological regimes.</p><p>Nonnative saltcedar (Tamarix spp.) and Russian olive (Elaeagnus angustifolia) are the second and fifth most abundant plants in riparian areas in the Western United States (see chap. 2, this volume; Friedman and others, 2005). Methods for controlling nonnative vegetation can alter riparian areas, often in unpredictable ways, and have the potential to impact a variety of habitat types used by wildlife (Bateman, Chung-MacCoubrey, Finch, and others, 2008). Therefore, understanding how wildlife utilize saltcedar and Russian olive and the effects of control activities on wildlife are important for resource managers who must balance management decisions such as nonnative plant control with protecting critical wildlife habitat.</p><p>In this chapter, we present a synthesis of published literature on the use of saltcedar and Russian olive by wildlife and discuss how wildlife respond or are likely to respond to control measures for saltcedar and Russian olive and subsequent restoration efforts. We discuss responses of several groups of wildlife, including arthropods, birds, mammals, herpetofauna, and fish.</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Saltcedar and Russian Olive Control Demonstration Act Science Assessment (Scientific Investigations Report 2009–5247)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Bateman, H.L., and Paxton, E., 2010, Saltcedar and Russian olive interactions with wildlife: Chapter 4, chap. <i>of</i> Saltcedar and Russian Olive Control Demonstration Act Science Assessment (Scientific Investigations Report 2009–5247), p. 49-63.","productDescription":"15 p.","startPage":"49","endPage":"63","costCenters":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"links":[{"id":334852,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":334849,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2009/5247/pdf/SIR09-5247.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58999943e4b0efcedb71a094","contributors":{"authors":[{"text":"Bateman, Heather L.","contributorId":72294,"corporation":false,"usgs":true,"family":"Bateman","given":"Heather","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":662723,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Paxton, Eben H. 0000-0001-5578-7689 epaxton@usgs.gov","orcid":"https://orcid.org/0000-0001-5578-7689","contributorId":438,"corporation":false,"usgs":true,"family":"Paxton","given":"Eben H.","email":"epaxton@usgs.gov","affiliations":[{"id":5049,"text":"Pacific Islands Ecosys Research Center","active":true,"usgs":true},{"id":521,"text":"Pacific Island Ecosystems Research Center","active":false,"usgs":true}],"preferred":false,"id":662724,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70193305,"text":"70193305 - 2010 - Assessing the response of the Pamlico Sound, North Carolina, USA to human and climatic disturbances: Management implications","interactions":[],"lastModifiedDate":"2017-11-20T13:52:56","indexId":"70193305","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Assessing the response of the Pamlico Sound, North Carolina, USA to human and climatic disturbances: Management implications","docAbstract":"<p>The Pamlico Sound (PS) with its sub-estuaries is the largest lagoonal ecosystem in the United States. It exhibits periodically strong salinity stratification and an average freshwater residence time of 1 year for the sound proper. This relatively long residence time promotes effective use and cycling of nutrients, allowing the system to support high rates of primary and secondary production, and serve as a vitally important fisheries nursery. This hydrologic characteristic also makes the system highly sensitive to nutrient over-enrichment and eutrophication. The PS is experiencing ecological change in response to increasing human activity and climatic perturbations. Human impacts include a rise in nutrient, sediment, and other pollutant loads that accompany urbanization and agricultural and industrial growth in its watersheds and airsheds. Since the mid-1990s, the PS&nbsp;has witnessed a sudden rise in tropical storm and hurricane impacts, with eight hurricanes and four tropical storms having made landfall in the PS watershed during the 1996 to 2007 period. Each of these storms had unique hydrologic, nutrient, and other pollutant loading effects. In addition, since the early 2000s, the region has experienced record droughts, which are continuing. Variable freshwater discharges from storms and droughts have caused large oscillations in nutrient enrichment, reflected ultimately in differential phytoplankton production, biomass, and community compositional responses. Floodwaters from the two wettest hurricanes, Fran (1996) and Floyd (1999), and from Tropical Storm Ernesto (2006) exerted long-term (months) effects on hydrology, nutrient loads, and algal production. Windy but relatively dry hurricanes, like Irene (1999) and Isabel (2003), caused strong vertical mixing, storm surges, but relatively minor changes in river flow, flushing, and nutrient loads. These contrasting effects are accompanied by biogeochemical (hypoxia, nutrient cycling) and habitat alterations, and associated food web disturbances. Each storm type influenced algal growth and compositional dynamics; however, their respective ecological impacts differed substantially. Changes in hydrologic and wind forcing resulting from changes in frequency and intensity of storms and droughts strongly influence water and habitat quality. These changes must be integrated with nutrient loading/dilution effects when assessing and predicting ecological responses to nutrient and hydrologic variability on this and other large lagoonal ecosystems.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Coastal lagoons: Critical habitats of environmental change","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"CRC Press","isbn":" 978-1-4200-8830-4","usgsCitation":"Paerl, H., Peierls, B., Hall, N.S., Joyner, A.R., Christian, R., Bales, J.D., and Riggs, S., 2010, Assessing the response of the Pamlico Sound, North Carolina, USA to human and climatic disturbances: Management implications, chap. <i>of</i> Coastal lagoons: Critical habitats of environmental change, p. 17-42.","productDescription":"26 p.","startPage":"17","endPage":"42","ipdsId":"IP-004212","costCenters":[{"id":476,"text":"North Carolina Water Science Center","active":true,"usgs":true}],"links":[{"id":349142,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"North Carolina","otherGeospatial":"Pamlico Sound","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -76.59393310546875,\n              34.99625375979014\n            ],\n            [\n              -75.47882080078125,\n              34.99625375979014\n            ],\n            [\n              -75.47882080078125,\n              35.65060102359122\n            ],\n            [\n              -76.59393310546875,\n              35.65060102359122\n            ],\n            [\n              -76.59393310546875,\n              34.99625375979014\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","publishingServiceCenter":{"id":8,"text":"Raleigh PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a610acee4b06e28e9c256eb","contributors":{"authors":[{"text":"Paerl, H.W.","contributorId":36893,"corporation":false,"usgs":true,"family":"Paerl","given":"H.W.","email":"","affiliations":[],"preferred":false,"id":722876,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Peierls, B.L.","contributorId":65332,"corporation":false,"usgs":true,"family":"Peierls","given":"B.L.","email":"","affiliations":[],"preferred":false,"id":722877,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Hall, N. S.","contributorId":200613,"corporation":false,"usgs":false,"family":"Hall","given":"N.","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":722878,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Joyner, A. R.","contributorId":199313,"corporation":false,"usgs":false,"family":"Joyner","given":"A.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":722879,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Christian, R.R.","contributorId":8593,"corporation":false,"usgs":true,"family":"Christian","given":"R.R.","email":"","affiliations":[],"preferred":false,"id":722880,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Bales, Jerad D. 0000-0001-8398-6984 jdbales@usgs.gov","orcid":"https://orcid.org/0000-0001-8398-6984","contributorId":683,"corporation":false,"usgs":true,"family":"Bales","given":"Jerad","email":"jdbales@usgs.gov","middleInitial":"D.","affiliations":[{"id":5058,"text":"Office of the Chief Scientist for Water","active":true,"usgs":true},{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":722881,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Riggs, S.R.","contributorId":29807,"corporation":false,"usgs":true,"family":"Riggs","given":"S.R.","email":"","affiliations":[],"preferred":false,"id":722882,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70180888,"text":"70180888 - 2010 - The potential for water savings through the control of saltcedar and Russian olive: Chapter 3","interactions":[{"subject":{"id":70180888,"text":"70180888 - 2010 - The potential for water savings through the control of saltcedar and Russian olive: Chapter 3","indexId":"70180888","publicationYear":"2010","noYear":false,"title":"The potential for water savings through the control of saltcedar and Russian olive: Chapter 3"},"predicate":"IS_PART_OF","object":{"id":98353,"text":"sir20095247 - 2010 - Saltcedar and Russian Olive Control Demonstration Act Science Assessment","indexId":"sir20095247","publicationYear":"2010","noYear":false,"title":"Saltcedar and Russian Olive Control Demonstration Act Science Assessment"},"id":1}],"isPartOf":{"id":98353,"text":"sir20095247 - 2010 - Saltcedar and Russian Olive Control Demonstration Act Science Assessment","indexId":"sir20095247","publicationYear":"2010","noYear":false,"title":"Saltcedar and Russian Olive Control Demonstration Act Science Assessment"},"lastModifiedDate":"2017-02-06T15:28:12","indexId":"70180888","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"The potential for water savings through the control of saltcedar and Russian olive: Chapter 3","docAbstract":"<p>This chapter discusses the components of the water budget for a riparian system containing large stands of saltcedar or Russian olive—that is, how water is used by the plant community and how that use affects both streamflow volume and groundwater levels. The relation of water availability to the hydrologic cycle and geomorphic setting in the Western United States, as well as the importance of scale, time, natural variation in climate, and the role of human activity in relation to water availability are discussed. Published literature on evapotranspiration rates is summarized to provide historical context for past efforts to bring about changes in water availability through control of saltcedar and Russian olive. Specifically, this chapter deals with the feasibility of water savings, defined here as the potential increase in water available for beneficial human use (both subsurface and surface waters) as a consequence of a change in vegetation and land-cover characteristics brought about by the removal or reduction of saltcedar and Russian olive.</p>","largerWorkType":{"id":18,"text":"Report"},"largerWorkTitle":"Saltcedar and Russian Olive Control Demonstration Act Science Assessment (Scientific Investigations Report 2009–5247)","largerWorkSubtype":{"id":5,"text":"USGS Numbered Series"},"language":"English","publisher":"U.S. Geological Survey","publisherLocation":"Reston, VA","usgsCitation":"Nagler, P.L., Shafroth, P.B., LaBaugh, J.W., Snyder, K.A., Scott, R.L., Merritt, D.M., and Osterberg, J., 2010, The potential for water savings through the control of saltcedar and Russian olive: Chapter 3, chap. <i>of</i> Saltcedar and Russian Olive Control Demonstration Act Science Assessment (Scientific Investigations Report 2009–5247), p. 33-47.","productDescription":"15 p.","startPage":"33","endPage":"47","costCenters":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"links":[{"id":334848,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":334847,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://pubs.usgs.gov/sir/2009/5247/pdf/SIR09-5247.pdf","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58999943e4b0efcedb71a096","contributors":{"authors":[{"text":"Nagler, Pamela L. 0000-0003-0674-103X pnagler@usgs.gov","orcid":"https://orcid.org/0000-0003-0674-103X","contributorId":1398,"corporation":false,"usgs":true,"family":"Nagler","given":"Pamela","email":"pnagler@usgs.gov","middleInitial":"L.","affiliations":[{"id":568,"text":"Southwest Biological Science Center","active":true,"usgs":true}],"preferred":true,"id":662712,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shafroth, Patrick B. 0000-0002-6064-871X shafrothp@usgs.gov","orcid":"https://orcid.org/0000-0002-6064-871X","contributorId":2000,"corporation":false,"usgs":true,"family":"Shafroth","given":"Patrick","email":"shafrothp@usgs.gov","middleInitial":"B.","affiliations":[{"id":291,"text":"Fort Collins Science Center","active":true,"usgs":true}],"preferred":true,"id":662713,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"LaBaugh, James W. 0000-0002-4112-2536 jlabaugh@usgs.gov","orcid":"https://orcid.org/0000-0002-4112-2536","contributorId":1311,"corporation":false,"usgs":true,"family":"LaBaugh","given":"James","email":"jlabaugh@usgs.gov","middleInitial":"W.","affiliations":[{"id":27111,"text":"National Water Quality Program","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"preferred":true,"id":662714,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Snyder, Keirith A.","contributorId":178786,"corporation":false,"usgs":false,"family":"Snyder","given":"Keirith","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":662715,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Scott, Russell L.","contributorId":39875,"corporation":false,"usgs":false,"family":"Scott","given":"Russell","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":662716,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Merritt, David M.","contributorId":95976,"corporation":false,"usgs":true,"family":"Merritt","given":"David","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":662717,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Osterberg, John","contributorId":179107,"corporation":false,"usgs":false,"family":"Osterberg","given":"John","email":"","affiliations":[],"preferred":false,"id":662718,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70193766,"text":"70193766 - 2010 - Marine electrical resistivity imaging of submarine groundwater discharge: Sensitivity analysis and application in Waquoit Bay, Massachusetts, USA","interactions":[],"lastModifiedDate":"2019-10-21T12:49:34","indexId":"70193766","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1923,"text":"Hydrogeology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Marine electrical resistivity imaging of submarine groundwater discharge: Sensitivity analysis and application in Waquoit Bay, Massachusetts, USA","docAbstract":"<p>Electrical resistivity imaging has been used in coastal settings to characterize fresh submarine groundwater discharge and the position of the freshwater/salt-water interface because of the relation of bulk electrical conductivity to pore-fluid conductivity, which in turn is a function of salinity. Interpretation of tomograms for hydrologic processes is complicated by inversion artifacts, uncertainty associated with survey geometry limitations, measurement errors, and choice of regularization method. Variation of seawater over tidal cycles poses unique challenges for inversion. The capabilities and limitations of resistivity imaging are presented for characterizing the distribution of freshwater and saltwater beneath a beach. The experimental results provide new insight into fresh submarine groundwater discharge at Waquoit Bay National Estuarine Research Reserve, East Falmouth, Massachusetts (USA). Tomograms from the experimental data indicate that fresh submarine groundwater discharge may shut down at high tide, whereas temperature data indicate that the discharge continues throughout the tidal cycle. Sensitivity analysis and synthetic modeling provide insight into resolving power in the presence of a time-varying saline water layer. In general, vertical electrodes and cross-hole measurements improve the inversion results regardless of the tidal level, whereas the resolution of surface arrays is more sensitive to time-varying saline water layer.</p>","language":"English","publisher":"Springer","doi":"10.1007/s10040-009-0498-z","usgsCitation":"Henderson, R., Day-Lewis, F.D., Abarca, E., Harvey, C.F., Karam, H.N., Liu, L., and Lane, J.W., 2010, Marine electrical resistivity imaging of submarine groundwater discharge: Sensitivity analysis and application in Waquoit Bay, Massachusetts, USA: Hydrogeology Journal, v. 18, no. 1, p. 173-185, https://doi.org/10.1007/s10040-009-0498-z.","productDescription":"13 p.","startPage":"173","endPage":"185","ipdsId":"IP-011944","costCenters":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":348723,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Massachusetts","otherGeospatial":"Waquoit Bay","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -70.54252624511719,\n              41.54815851009314\n            ],\n            [\n              -70.46974182128906,\n              41.54815851009314\n            ],\n            [\n              -70.46974182128906,\n              41.672398925907906\n            ],\n            [\n              -70.54252624511719,\n              41.672398925907906\n            ],\n            [\n              -70.54252624511719,\n              41.54815851009314\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","volume":"18","issue":"1","publishingServiceCenter":{"id":11,"text":"Pembroke PSC"},"noUsgsAuthors":false,"publicationDate":"2009-09-10","publicationStatus":"PW","scienceBaseUri":"5a610acde4b06e28e9c256e5","contributors":{"authors":[{"text":"Henderson, Rory rhenders@usgs.gov","contributorId":2083,"corporation":false,"usgs":true,"family":"Henderson","given":"Rory","email":"rhenders@usgs.gov","affiliations":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true}],"preferred":false,"id":720313,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Day-Lewis, Frederick D. 0000-0003-3526-886X daylewis@usgs.gov","orcid":"https://orcid.org/0000-0003-3526-886X","contributorId":1672,"corporation":false,"usgs":true,"family":"Day-Lewis","given":"Frederick","email":"daylewis@usgs.gov","middleInitial":"D.","affiliations":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":true,"id":720311,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Abarca, Elena","contributorId":199905,"corporation":false,"usgs":false,"family":"Abarca","given":"Elena","email":"","affiliations":[{"id":13299,"text":"Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA","active":true,"usgs":false}],"preferred":false,"id":720312,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Harvey, Charles F.","contributorId":199836,"corporation":false,"usgs":false,"family":"Harvey","given":"Charles","email":"","middleInitial":"F.","affiliations":[{"id":12444,"text":"Massachusetts Institute of Technology","active":true,"usgs":false}],"preferred":false,"id":721861,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Karam, Hanan N.","contributorId":199837,"corporation":false,"usgs":false,"family":"Karam","given":"Hanan","email":"","middleInitial":"N.","affiliations":[{"id":13299,"text":"Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA","active":true,"usgs":false}],"preferred":false,"id":721862,"contributorType":{"id":1,"text":"Authors"},"rank":8},{"text":"Liu, Lanbo","contributorId":199850,"corporation":false,"usgs":false,"family":"Liu","given":"Lanbo","email":"","affiliations":[{"id":6619,"text":"University of Connecticutt","active":true,"usgs":false}],"preferred":false,"id":720315,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Lane, John W. Jr. jwlane@usgs.gov","contributorId":1738,"corporation":false,"usgs":true,"family":"Lane","given":"John","suffix":"Jr.","email":"jwlane@usgs.gov","middleInitial":"W.","affiliations":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true}],"preferred":false,"id":720314,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}}
,{"id":70193762,"text":"70193762 - 2010 - Improved hydrogeophysical characterization and monitoring through parallel modeling and inversion of time-domain resistivity andinduced-polarization data","interactions":[],"lastModifiedDate":"2019-10-23T17:00:27","indexId":"70193762","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1808,"text":"Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Improved hydrogeophysical characterization and monitoring through parallel modeling and inversion of time-domain resistivity andinduced-polarization data","docAbstract":"<p><span>Electrical geophysical methods have found wide use in the growing discipline of hydrogeophysics for characterizing the electrical properties of the subsurface and for monitoring subsurface processes in terms of the spatiotemporal changes in subsurface conductivity, chargeability, and source currents they govern. Presently, multichannel and multielectrode data collections systems can collect large data sets in relatively short periods of time. Practitioners, however, often are unable to fully utilize these large data sets and the information they contain because of standard desktop-computer processing limitations. These limitations can be addressed by utilizing the storage and processing capabilities of parallel computing environments. We have developed a parallel distributed-memory forward and inverse modeling algorithm for analyzing resistivity and time-domain induced polar-ization (IP) data. The primary components of the parallel computations include distributed computation of the pole solutions in forward mode, distributed storage and computation of the Jacobian matrix in inverse mode, and parallel execution of the inverse equation solver. We have tested the corresponding parallel code in three efforts: (1) resistivity characterization of the Hanford 300 Area Integrated Field Research Challenge site in Hanford, Washington, U.S.A., (2) resistivity characterization of a volcanic island in the southern Tyrrhenian Sea in Italy, and (3) resistivity and IP monitoring of biostimulation at a Superfund site in Brandywine, Maryland, U.S.A. Inverse analysis of each of these data sets would be limited or impossible in a standard serial computing environment, which underscores the need for parallel high-performance computing to fully utilize the potential of electrical geophysical methods in hydrogeophysical applications.</span></p>","language":"English","publisher":"Society of Exploration Geophysicists","doi":"10.1190/1.3475513","usgsCitation":"Johnson, T., Versteeg, R.J., Ward, A., Day-Lewis, F.D., and Revil, A., 2010, Improved hydrogeophysical characterization and monitoring through parallel modeling and inversion of time-domain resistivity andinduced-polarization data: Geophysics, v. 75, no. 4, p. WA27-WA41, https://doi.org/10.1190/1.3475513.","productDescription":"15 p.","startPage":"WA27","endPage":"WA41","ipdsId":"IP-017886","costCenters":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":349080,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"75","issue":"4","publishingServiceCenter":{"id":11,"text":"Pembroke PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5a610acee4b06e28e9c256e7","contributors":{"authors":[{"text":"Johnson, Timothy C.","contributorId":99884,"corporation":false,"usgs":true,"family":"Johnson","given":"Timothy C.","affiliations":[],"preferred":false,"id":722689,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Versteeg, Roelof J.","contributorId":199843,"corporation":false,"usgs":false,"family":"Versteeg","given":"Roelof","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":722690,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Ward, Andy","contributorId":7184,"corporation":false,"usgs":true,"family":"Ward","given":"Andy","email":"","affiliations":[],"preferred":false,"id":722691,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Day-Lewis, Frederick D. 0000-0003-3526-886X daylewis@usgs.gov","orcid":"https://orcid.org/0000-0003-3526-886X","contributorId":1672,"corporation":false,"usgs":true,"family":"Day-Lewis","given":"Frederick","email":"daylewis@usgs.gov","middleInitial":"D.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"preferred":true,"id":722692,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Revil, André","contributorId":38879,"corporation":false,"usgs":true,"family":"Revil","given":"André","affiliations":[],"preferred":false,"id":722693,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70193761,"text":"70193761 - 2010 - Use of induced polarization to characterize the hydrogeologic framework of the zone of surface‐water/groundwater exchange at the Hanford 300 Area, WA","interactions":[],"lastModifiedDate":"2020-03-10T14:37:11","indexId":"70193761","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Use of induced polarization to characterize the hydrogeologic framework of the zone of surface‐water/groundwater exchange at the Hanford 300 Area, WA","docAbstract":"<p><span>An extensive continuous waterborne electrical imaging (CWEI) survey was conducted along the Columbia River corridor adjacent to the U.S. Department of Energy (DOE) Hanford 300 Area, WA, in order to improve the conceptual model for exchange between surface water and&nbsp;</span><u class=\"uu\">U</u><span>‐contaminated groundwater. The primary objective was to determine spatial variability in the depth to the Hanford‐Ringold (H‐R) contact, an important lithologic boundary that limits vertical transport of groundwater along the river corridor. Resistivity and induced polarization (IP) measurements were performed along six survey lines parallel to the shore (each greater than 2.5 km in length), with a measurement recorded every 0.5–3.0 m depending on survey speed, resulting in approximately 65,000 measurements. The H‐R contact was clearly resolved in images of the normalized chargeability along the river corridor due to the large contrast in surface area (hence polarizability) of the granular material between the two lithologic units. Cross sections of the lithologic structure along the river corridor reveal a large variation in the thickness of the overlying Hanford unit (the aquifer through which contaminated groundwater discharges to the river) and clearly identify locations along the river corridor where the underlying Ringold unit is exposed to the riverbed. Knowing the distribution of the Hanford and Ringold units along the river corridor substantially improves the conceptual model for the hydrogeologic framework regulating U exchange between groundwater and Columbia River water relative to current models based on projections of data from boreholes on land into the river.</span><span></span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"Society of Exploration Geophysicists","doi":"10.4133/1.3445539","usgsCitation":"Slater, L., Ntarlagiannis, D., Day-Lewis, F.D., Mwakanyamale, K., Lane, J.W., Ward, A., and Versteeg, R.J., 2010, Use of induced polarization to characterize the hydrogeologic framework of the zone of surface‐water/groundwater exchange at the Hanford 300 Area, WA, <i>in</i> Symposium on the Application of Geophysics to Engineering and Environmental Problems 2010, p. 955-960, https://doi.org/10.4133/1.3445539.","productDescription":"6 p.","startPage":"955","endPage":"960","ipdsId":"IP-018653","costCenters":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":350805,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Washington","otherGeospatial":"Hanford 300 site","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -119.28319931030273,\n              46.35699885440808\n            ],\n            [\n              -119.26620483398438,\n              46.35699885440808\n            ],\n            [\n              -119.26620483398438,\n              46.37547772047758\n            ],\n            [\n              -119.28319931030273,\n              46.37547772047758\n            ],\n            [\n              -119.28319931030273,\n              46.35699885440808\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","publishingServiceCenter":{"id":11,"text":"Pembroke PSC"},"noUsgsAuthors":false,"publicationDate":"2010-05-17","publicationStatus":"PW","scienceBaseUri":"5a719270e4b0a9a2e9dbde20","contributors":{"authors":[{"text":"Slater, Lee","contributorId":55707,"corporation":false,"usgs":false,"family":"Slater","given":"Lee","affiliations":[{"id":12727,"text":"Rutgers University","active":true,"usgs":false}],"preferred":false,"id":720289,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ntarlagiannis, Dimitrios","contributorId":150729,"corporation":false,"usgs":false,"family":"Ntarlagiannis","given":"Dimitrios","affiliations":[{"id":12727,"text":"Rutgers University","active":true,"usgs":false}],"preferred":false,"id":720288,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Day-Lewis, Frederick D. 0000-0003-3526-886X daylewis@usgs.gov","orcid":"https://orcid.org/0000-0003-3526-886X","contributorId":1672,"corporation":false,"usgs":true,"family":"Day-Lewis","given":"Frederick","email":"daylewis@usgs.gov","middleInitial":"D.","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"preferred":true,"id":720285,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Mwakanyamale, Kisa","contributorId":75847,"corporation":false,"usgs":true,"family":"Mwakanyamale","given":"Kisa","email":"","affiliations":[],"preferred":false,"id":726190,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lane, John W. Jr. 0000-0002-3558-243X jwlane@usgs.gov","orcid":"https://orcid.org/0000-0002-3558-243X","contributorId":189168,"corporation":false,"usgs":true,"family":"Lane","given":"John","suffix":"Jr.","email":"jwlane@usgs.gov","middleInitial":"W.","affiliations":[{"id":486,"text":"OGW Branch of Geophysics","active":true,"usgs":true},{"id":493,"text":"Office of Ground Water","active":true,"usgs":true}],"preferred":false,"id":720286,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Ward, Andy","contributorId":7184,"corporation":false,"usgs":true,"family":"Ward","given":"Andy","email":"","affiliations":[],"preferred":false,"id":720287,"contributorType":{"id":1,"text":"Authors"},"rank":13},{"text":"Versteeg, Roelof J.","contributorId":73501,"corporation":false,"usgs":true,"family":"Versteeg","given":"Roelof","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":720290,"contributorType":{"id":1,"text":"Authors"},"rank":14}]}}
,{"id":70180384,"text":"70180384 - 2010 - Mercury dynamics in relation to dissolved organic carbon concentration and quality during high flow events in three northeastern U.S. streams","interactions":[],"lastModifiedDate":"2018-10-10T08:31:33","indexId":"70180384","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":"Mercury dynamics in relation to dissolved organic carbon concentration and quality during high flow events in three northeastern U.S. streams","docAbstract":"<p><span>Mercury (Hg) contamination is widespread in remote areas of the northeastern United States. Forested uplands have accumulated a large reservoir of Hg in soil from decades of elevated anthropogenic deposition that can be released episodically to stream water during high flows. The objective of this study was to evaluate spatial and temporal variations in stream water Hg species and organic matter fractions over a range of hydrologic conditions in three forested upland watersheds (United States). Mercury and organic matter concentrations increased with discharge at all three sites; however, the partitioning of Hg fractions (dissolved versus particulate) differed among sites and seasons. Associated with increased discharge, flow paths shifted from mineral soil under base flow to upper soil horizons. As flow paths shifted, greater concentrations of dissolved organic carbon (DOC) richer in aromatic substances were flushed from upper soil horizons to stream water. The hydrophobic organic matter associated with humic material from upper soils appears to have had a greater capacity to bind Hg. Because of the strong correlation between Hg and DOC, we hypothesize that there was a concurrent shift in the source of Hg with DOC from lower mineral soil to upper soil horizons. Our study suggests that stream discharge is an effective predictor of dissolved total Hg flux.</span></p>","language":"English","publisher":"American Geophysical Union","doi":"10.1029/2009WR008351","usgsCitation":"Dittman, J.A., Shanley, J.B., Driscoll, C.T., Aiken, G.R., Chalmers, A.T., Towse, J.E., and Selvendiran, P., 2010, Mercury dynamics in relation to dissolved organic carbon concentration and quality during high flow events in three northeastern U.S. streams: Water Resources Research, v. 46, no. 7, W07522; 15 p. , https://doi.org/10.1029/2009WR008351.","productDescription":"W07522; 15 p. ","ipdsId":"IP-018969","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":334288,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"46","issue":"7","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2010-07-17","publicationStatus":"PW","scienceBaseUri":"58905ef3e4b072a7ac0cad47","contributors":{"authors":[{"text":"Dittman, Jason A.","contributorId":178890,"corporation":false,"usgs":false,"family":"Dittman","given":"Jason","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":661477,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shanley, James B. 0000-0002-4234-3437 jshanley@usgs.gov","orcid":"https://orcid.org/0000-0002-4234-3437","contributorId":1953,"corporation":false,"usgs":true,"family":"Shanley","given":"James","email":"jshanley@usgs.gov","middleInitial":"B.","affiliations":[{"id":405,"text":"NH/VT office of New England Water Science Center","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":661474,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Driscoll, Charles T.","contributorId":167460,"corporation":false,"usgs":false,"family":"Driscoll","given":"Charles","email":"","middleInitial":"T.","affiliations":[{"id":5082,"text":"Syracuse University","active":true,"usgs":false}],"preferred":false,"id":661475,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Aiken, George R. 0000-0001-8454-0984 graiken@usgs.gov","orcid":"https://orcid.org/0000-0001-8454-0984","contributorId":1322,"corporation":false,"usgs":true,"family":"Aiken","given":"George","email":"graiken@usgs.gov","middleInitial":"R.","affiliations":[{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":661473,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Chalmers, Ann T. 0000-0002-5199-8080 chalmers@usgs.gov","orcid":"https://orcid.org/0000-0002-5199-8080","contributorId":1443,"corporation":false,"usgs":true,"family":"Chalmers","given":"Ann","email":"chalmers@usgs.gov","middleInitial":"T.","affiliations":[{"id":405,"text":"NH/VT office of New England Water Science Center","active":true,"usgs":true},{"id":466,"text":"New England Water Science Center","active":true,"usgs":true}],"preferred":true,"id":661472,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Towse, Janet E.","contributorId":178889,"corporation":false,"usgs":false,"family":"Towse","given":"Janet","email":"","middleInitial":"E.","affiliations":[],"preferred":false,"id":661476,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Selvendiran, Pranesh","contributorId":178891,"corporation":false,"usgs":false,"family":"Selvendiran","given":"Pranesh","email":"","affiliations":[],"preferred":false,"id":661478,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70180383,"text":"70180383 - 2010 - Comparison of XAD with other dissolved lignin isolation techniques and a compilation of analytical improvements for the analysis of lignin in aquatic settings","interactions":[],"lastModifiedDate":"2021-03-17T14:45:27.775028","indexId":"70180383","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":"Comparison of XAD with other dissolved lignin isolation techniques and a compilation of analytical improvements for the analysis of lignin in aquatic settings","docAbstract":"<p><span>This manuscript highlights numerous incremental improvements in dissolved lignin measurements over the nearly three decades since CuO oxidation of lignin phenols was first adapted for environmental samples. Intercomparison of the recovery efficiency of three common lignin phenol concentration and isolation techniques, namely XAD, C</span><sub>18</sub><span>with both CH</span><sub>3</sub><span>OH (C</span><sub>18</sub><span>M) and CH</span><sub>3</sub><span>CN (C</span><sub>18</sub><span>A) used independently for priming and elution steps, and tangential flow filtration (TFF) for a range of aquatic samples including fresh, estuarine and marine waters, was undertaken. With freshwater samples XAD8-1, C</span><sub>18</sub><span>M and TFF were all observed to recover ca. 80–90% of the lignin phenols and showed no fractionation effects with respect to diagnostic lignin parameters. With estuarine and marine samples more lignin phenols were recovered with C</span><sub>18</sub><span>M and XAD8-1 than TFF because of the increased prevalence of low molecular weight lignin phenols in marine influenced samples. For marine systems, differences were also observed between diagnostic lignin parameters isolated via TFF vs. C</span><sub>18</sub><span>M and XAD8-1 as a result of the high molecular weight lignin phenols being less degraded than the bulk. Therefore, it is recommended for future studies of marine systems that only one technique is utilized for ease of intercomparison within studies. It is suggested that for studies solely aimed at recovering bulk dissolved lignin in marine environments that C</span><sub>18</sub><span>M and XAD8-1 appear to be more suitable than TFF as they recover more lignin. Our results highlight that, for freshwater samples, all three common lignin phenol concentration and isolation techniques are comparable to whole water concentrated by rotary evaporation (i.e. not isolated) but, that for marine systems, the choice of concentration and isolation techniques needs to be taken into consideration with respect to both lignin concentration and diagnostic parameters. Finally, as the study highlights XAD8-1 to be a suitable method for the isolation of dissolved lignin phenols from aquatic systems (statistically indistinguishable from C</span><sub>18</sub><span>M, </span><i>P</i><span>&nbsp;&lt;&nbsp;0.1), lignin data representative of whole waters can be produced for IHSS reference materials or other XAD sample archives.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.orggeochem.2010.02.004","usgsCitation":"Spencer, R., Aiken, G.R., Dyda, R.Y., Butler, K.D., Bergamaschi, B.A., and Hernes, P.J., 2010, Comparison of XAD with other dissolved lignin isolation techniques and a compilation of analytical improvements for the analysis of lignin in aquatic settings: Organic Geochemistry, v. 41, no. 5, p. 445-453, https://doi.org/10.1016/j.orggeochem.2010.02.004.","productDescription":"9 p.","startPage":"445","endPage":"453","ipdsId":"IP-019043","costCenters":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true},{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":334289,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"41","issue":"5","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58905ef3e4b072a7ac0cad49","contributors":{"authors":[{"text":"Spencer, Robert G. M.","contributorId":139731,"corporation":false,"usgs":false,"family":"Spencer","given":"Robert G. M.","affiliations":[{"id":12894,"text":"Department of Land, Air, and Water Resources, University of California, One Shields Avenue, Davis, CA, 95616, USA","active":true,"usgs":false}],"preferred":false,"id":661471,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aiken, George R. 0000-0001-8454-0984 graiken@usgs.gov","orcid":"https://orcid.org/0000-0001-8454-0984","contributorId":1322,"corporation":false,"usgs":true,"family":"Aiken","given":"George","email":"graiken@usgs.gov","middleInitial":"R.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":661467,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Dyda, Rachael Y.","contributorId":33966,"corporation":false,"usgs":true,"family":"Dyda","given":"Rachael","email":"","middleInitial":"Y.","affiliations":[],"preferred":false,"id":661470,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Butler, Kenna D. 0000-0001-9604-4603 kebutler@usgs.gov","orcid":"https://orcid.org/0000-0001-9604-4603","contributorId":178885,"corporation":false,"usgs":true,"family":"Butler","given":"Kenna","email":"kebutler@usgs.gov","middleInitial":"D.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":661468,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Bergamaschi, Brian A. 0000-0002-9610-5581 bbergama@usgs.gov","orcid":"https://orcid.org/0000-0002-9610-5581","contributorId":140776,"corporation":false,"usgs":true,"family":"Bergamaschi","given":"Brian","email":"bbergama@usgs.gov","middleInitial":"A.","affiliations":[{"id":154,"text":"California Water Science Center","active":true,"usgs":true}],"preferred":true,"id":661466,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Hernes, Peter J.","contributorId":85311,"corporation":false,"usgs":true,"family":"Hernes","given":"Peter","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":661469,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}}
,{"id":70180381,"text":"70180381 - 2010 - Source water controls on the character and origin of dissolved organic matter in streams of the Yukon River basin, Alaska","interactions":[],"lastModifiedDate":"2018-10-10T08:32:59","indexId":"70180381","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2319,"text":"Journal of Geophysical Research G: Biogeosciences","active":true,"publicationSubtype":{"id":10}},"title":"Source water controls on the character and origin of dissolved organic matter in streams of the Yukon River basin, Alaska","docAbstract":"Climate warming and permafrost degradation at high latitudes will likely impact watershed hydrology, and consequently, alter the concentration and character of dissolved organic carbon (DOC) in northern rivers. We examined seasonal variation of DOC chemistry in 16 streams of the Yukon River basin, Alaska. Our primary objective was to evaluate the relationship between source water (shallow versus deep groundwater flow paths) and DOC chemical composition. Using base cation chemistry and principal component analysis, we observed high contributions of deep groundwater to glacial and clearwater streams, whereas blackwater streams received larger contributions from shallow groundwater sources. DOC concentration and specific ultraviolet absorbance peaked during spring snowmelt in all streams, and were consistently higher in blackwater streams than in glacial and clearwater streams. The hydrophobic acid fraction of DOC dominated across all streams and seasons, comprising between 35% and 56% of total DOC. The hydrophilic acid fraction of DOC was more prominent in glacial (23% ± 3%) and clearwater streams (19% ± 1%) than in blackwater streams (16% ± 1%), and was enriched during winter base flow (29% ± 1%) relative to snowmelt and summer base flow. We observed that an increase in the contribution of deep groundwater to streamflow resulted in decreased DOC concentration, aromaticity, and DOC-to-dissolved organic nitrogen ratio, and an increase in the proportion of hydrophilic acids relative to hydrophobic acids. Our findings suggest that future permafrost degradation and higher contributions of groundwater to streamflow may result in a higher fraction of labile DOM in streams of the Yukon basin.","language":"English","publisher":"AGU Publications","doi":"10.1029/2009JG001153","usgsCitation":"O’Donnell, J.A., Aiken, G.R., Kane, E.S., and Jones, J.B., 2010, Source water controls on the character and origin of dissolved organic matter in streams of the Yukon River basin, Alaska: Journal of Geophysical Research G: Biogeosciences, v. 115, no. G3, p. 1-12, https://doi.org/10.1029/2009JG001153.","productDescription":"G03025; 12 p. ","startPage":"1","endPage":"12","ipdsId":"IP-021241","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":475875,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2009jg001153","text":"Publisher Index Page"},{"id":334277,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"115","issue":"G3","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2010-09-17","publicationStatus":"PW","scienceBaseUri":"58905ef4e4b072a7ac0cad4b","contributors":{"authors":[{"text":"O’Donnell, Jonathan A.","contributorId":84138,"corporation":false,"usgs":true,"family":"O’Donnell","given":"Jonathan","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":661459,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Aiken, George R. 0000-0001-8454-0984 graiken@usgs.gov","orcid":"https://orcid.org/0000-0001-8454-0984","contributorId":1322,"corporation":false,"usgs":true,"family":"Aiken","given":"George","email":"graiken@usgs.gov","middleInitial":"R.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":191,"text":"Colorado Water Science Center","active":true,"usgs":true}],"preferred":true,"id":661458,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kane, Evan S.","contributorId":11903,"corporation":false,"usgs":true,"family":"Kane","given":"Evan","email":"","middleInitial":"S.","affiliations":[],"preferred":false,"id":661460,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Jones, Jeremy B.","contributorId":113650,"corporation":false,"usgs":true,"family":"Jones","given":"Jeremy","email":"","middleInitial":"B.","affiliations":[],"preferred":false,"id":661461,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70189973,"text":"70189973 - 2010 - Computational modeling of bedform evolution in rivers with implications for predictions of flood stage and bed evolution","interactions":[],"lastModifiedDate":"2017-08-16T21:54:47","indexId":"70189973","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Computational modeling of bedform evolution in rivers with implications for predictions of flood stage and bed evolution","docAbstract":"Uncertainties in flood stage prediction and bed evolution in rivers are frequently associated with the evolution of bedforms over a hydrograph. For the case of flood prediction, the evolution of the bedforms may alter the effective bed roughness, so predictions of stage and velocity based on assuming bedforms retain the same size and shape over a hydrograph will be\r\nincorrect. These same effects will produce errors in the prediction of the sediment transport and bed evolution, but in this latter case the errors are typically larger, as even small errors in the prediction of bedform form drag can make very large errors in predicting the rates of sediment motion and the associated erosion and deposition. In situations where flows change slowly, it may be possible to use empirical results that relate bedform morphology to roughness and effective form drag to avoid these errors; but in many cases where the bedforms evolve rapidly and are in disequilibrium with the instantaneous flow, these empirical methods cannot be\r\naccurately applied. Over the past few years, computational models for bedform development, migration, and adjustment to varying flows have been developed and tested with a variety of laboratory and field data. These models, which are based on detailed multidimensional flow modeling incorporating large eddy simulation, appear to be capable of predicting bedform dimensions during steady flows as well as their time dependence during discharge variations. In the work presented here, models of this type are used to investigate the impacts of bedform on stage and bed evolution in rivers during flood hydrographs. The method is shown to reproduce\r\nhysteresis in rating curves as well as other more subtle effects in the shape of flood waves.  Techniques for combining the bedform evolution models with larger-scale models for river reach flow, sediment transport, and bed evolution are described and used to show the importance of including dynamic bedform effects in river modeling. For example calculations for a flood on the Kootenai River, errors of almost 1m in predicted stage and errors of about a factor of two in the predicted maximum depths of erosion can be attributed to bedform evolution. Thus, treating bedforms explicitly in flood and bed evolution models can decrease uncertainty and increase the\r\naccuracy of predictions.","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the 4th Federal Interagency Hydrologic Modeling Conference and the 9th Federal Interagency Sedimentation Conference ","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"2nd Joint Federal Interagency Conference","conferenceDate":"June 27-July 10, 2010","conferenceLocation":"Las Vegas, NV","language":"English","publisher":"Advisory Committee on Water Information","isbn":" 978-0-9779007-3-2","usgsCitation":"Nelson, J.M., Shimizu, Y., Giri, S., and McDonald, R.R., 2010, Computational modeling of bedform evolution in rivers with implications for predictions of flood stage and bed evolution, <i>in</i> Proceedings of the 4th Federal Interagency Hydrologic Modeling Conference and the 9th Federal Interagency Sedimentation Conference , Las Vegas, NV, June 27-July 10, 2010, 9 p.","productDescription":"9 p.","ipdsId":"IP-014436","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":344916,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":344915,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://acwi.gov/sos/pubs/2ndJFIC/"}],"publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"599559bce4b0fe2b9fea6c46","contributors":{"authors":[{"text":"Nelson, Jonathan M. 0000-0002-7632-8526 jmn@usgs.gov","orcid":"https://orcid.org/0000-0002-7632-8526","contributorId":2812,"corporation":false,"usgs":true,"family":"Nelson","given":"Jonathan","email":"jmn@usgs.gov","middleInitial":"M.","affiliations":[{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":706951,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Shimizu, Yasuyuki","contributorId":28875,"corporation":false,"usgs":false,"family":"Shimizu","given":"Yasuyuki","affiliations":[{"id":25249,"text":"Univ. of Hokkaido, Sapporo,Japan","active":true,"usgs":false}],"preferred":false,"id":706952,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Giri, Sanjay","contributorId":195320,"corporation":false,"usgs":false,"family":"Giri","given":"Sanjay","email":"","affiliations":[{"id":12474,"text":"Deltares, Netherlands","active":true,"usgs":false}],"preferred":false,"id":706953,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"McDonald, Richard R. 0000-0002-0703-0638 rmcd@usgs.gov","orcid":"https://orcid.org/0000-0002-0703-0638","contributorId":2428,"corporation":false,"usgs":true,"family":"McDonald","given":"Richard","email":"rmcd@usgs.gov","middleInitial":"R.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":37778,"text":"WMA - Integrated Modeling and Prediction Division","active":true,"usgs":true}],"preferred":true,"id":706954,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70189916,"text":"70189916 - 2010 - Modeling methods","interactions":[{"subject":{"id":70189916,"text":"70189916 - 2010 - Modeling methods","indexId":"70189916","publicationYear":"2010","noYear":false,"chapter":"3","title":"Modeling methods"},"predicate":"IS_PART_OF","object":{"id":70189200,"text":"70189200 - 2010 - Estimating groundwater recharge","indexId":"70189200","publicationYear":"2010","noYear":false,"title":"Estimating groundwater recharge"},"id":1}],"isPartOf":{"id":70189200,"text":"70189200 - 2010 - Estimating groundwater recharge","indexId":"70189200","publicationYear":"2010","noYear":false,"title":"Estimating groundwater recharge"},"lastModifiedDate":"2021-04-26T17:31:35.616126","indexId":"70189916","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"3","title":"Modeling methods","docAbstract":"<p>Simulation models are widely used in all types of hydrologic studies, and many of these models can be used to estimate recharge. Models can provide important insight into the functioning of hydrologic systems by identifying factors that influence recharge. The predictive capability of models can be used to evaluate how changes in climate, water use, land use, and other factors may affect recharge rates. Most hydrological simulation models, including watershed models and groundwater-flow models, are based on some form of water-budget equation, so the material in this chapter is closely linked to that in Chapter 2. Empirical models that are not based on a water-budget equation have also been used for estimating recharge; these models generally take the form of simple estimation equations that define annual recharge as a function of precipitation and possibly other climatic data or watershed characteristics.</p><p>Model complexity varies greatly. Some models are simple accounting models; others attempt to accurately represent the physics of water movement through each compartment of the hydrologic system. Some models provide estimates of recharge explicitly; for example, a model based on the Richards equation can simulate water movement from the soil surface through the unsaturated zone to the water table. Recharge estimates can be obtained indirectly from other models. For example, recharge is a parameter in groundwater-flow models that solve for hydraulic head (i.e. groundwater level). Recharge estimates can be obtained through a model calibration process in which recharge and other model parameter values are adjusted so that simulated water levels agree with measured water levels. The simulation that provides the closest agreement is called the best fit, and the recharge value used in that simulation is the model-generated estimate of recharge.</p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Estimating groundwater recharge","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Cambridge University Press","doi":"10.1017/CBO9780511780745.004","isbn":"9780511780745","usgsCitation":"Healy, R.W., 2010, Modeling methods, chap. 3 <i>of</i> Estimating groundwater recharge, p. 43-73, https://doi.org/10.1017/CBO9780511780745.004.","productDescription":"31 p.","startPage":"43","endPage":"73","ipdsId":"IP-017222","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":345120,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"599fe5bde4b038630d022120","contributors":{"authors":[{"text":"Healy, Richard W. 0000-0002-0224-1858 rwhealy@usgs.gov","orcid":"https://orcid.org/0000-0002-0224-1858","contributorId":658,"corporation":false,"usgs":true,"family":"Healy","given":"Richard","email":"rwhealy@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":706764,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70189196,"text":"70189196 - 2010 - Comparison of transport and attachment behaviors of Cryptosporidium parvum oocysts and oocyst-sized microspheres being advected through three minerologically different granular porous media","interactions":[],"lastModifiedDate":"2018-10-09T09:51:49","indexId":"70189196","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3716,"text":"Water Research","onlineIssn":"1879-2448","printIssn":"0043-1354","active":true,"publicationSubtype":{"id":10}},"displayTitle":"Comparison of transport and attachment behaviors of <i>Cryptosporidium parvum</i> oocysts and oocyst-sized microspheres being advected through three minerologically different granular porous media","title":"Comparison of transport and attachment behaviors of Cryptosporidium parvum oocysts and oocyst-sized microspheres being advected through three minerologically different granular porous media","docAbstract":"<p><span>In order to gain more information about the fate of&nbsp;</span><i>Cryptosporidium parvum</i><span><span>&nbsp;</span>oocysts in tropical volcanic soils, the transport and attachment behaviors of oocysts and oocyst-sized polystyrene microspheres were studied in the presence of two soils. These soils were chosen because of their differing chemical and physical properties, i.e., an organic-rich (43–46% by mass) volcanic ash-derived soil from the island of Hawaii, and a red, iron (22–29% by mass), aluminum (29–45% by mass), and clay-rich (68–76% by mass) volcanic soil from the island of Oahu. A third agricultural soil, an organic- (13% by mass) and quartz-rich (40% by mass) soil from Illinois, was included for reference. In 10-cm long flow-through columns, oocysts and microspheres advecting through the red volcanic soil were almost completely (98% and 99%) immobilized. The modest breakthrough resulted from preferential flow-path structure inadvertently created by soil-particle aggregation during the re-wetting process. Although a high (99%) removal of oocysts and microsphere within the volcanic ash soil occurred initially, further examination revealed that transport was merely retarded because of highly reversible interactions with grain surfaces. Judging from the slope of the substantive and protracted tail of the breakthrough curve for the 1.8-μm microspheres, almost all (&gt;99%) predictably would be recovered within ∼4000 pore volumes. This suggests that once contaminated, the volcanic ash soil could serve as a reservoir for subsequent contamination of groundwater, at least for pathogens of similar size or smaller. Because of the highly reversible nature of organic colloid immobilization in this soil type,<span>&nbsp;</span></span><i>C. parvum</i><span><span>&nbsp;</span>could contaminate surface water should overland flow during heavy precipitation events pick up near-surface grains to which they are attached. Surprisingly, oocyst and microsphere attachment to the reference soil from Illinois appeared to be at least as sensitive to changes in pH as was observed for the red, metal-oxide rich soil from Oahu. In contrast, colloidal attachment in the organic-rich, volcanic ash soil was relatively insensitive to changes in pH in spite of the high iron content. Given the fundamental differences in transport behavior of oocyst-sized colloids within the two volcanic soils of similar origin, agricultural practices modified to lessen<span>&nbsp;</span></span><i>C. parvum</i><span><span>&nbsp;</span>contamination of ground or surface water would necessitate taking the individual soil properties into account.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.watres.2010.06.015","usgsCitation":"Mohanram, A., Ray, C., Harvey, R.W., Metge, D.W., Ryan, J.N., Chorover, J., and Eberl, D.D., 2010, Comparison of transport and attachment behaviors of Cryptosporidium parvum oocysts and oocyst-sized microspheres being advected through three minerologically different granular porous media: Water Research, v. 44, no. 18, p. 5334-5344, https://doi.org/10.1016/j.watres.2010.06.015.","productDescription":"11 p.","startPage":"5334","endPage":"5344","ipdsId":"IP-014207","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":343377,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"18","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"595dfab9e4b0d1f9f056a7c1","contributors":{"authors":[{"text":"Mohanram, Arvind","contributorId":194201,"corporation":false,"usgs":false,"family":"Mohanram","given":"Arvind","email":"","affiliations":[],"preferred":false,"id":703511,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Ray, Chittaranjan","contributorId":194209,"corporation":false,"usgs":false,"family":"Ray","given":"Chittaranjan","email":"","affiliations":[],"preferred":false,"id":703512,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Harvey, Ronald W. 0000-0002-2791-8503 rwharvey@usgs.gov","orcid":"https://orcid.org/0000-0002-2791-8503","contributorId":564,"corporation":false,"usgs":true,"family":"Harvey","given":"Ronald","email":"rwharvey@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":703513,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Metge, David W. dwmetge@usgs.gov","contributorId":663,"corporation":false,"usgs":true,"family":"Metge","given":"David","email":"dwmetge@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":703514,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Ryan, Joseph N.","contributorId":54290,"corporation":false,"usgs":false,"family":"Ryan","given":"Joseph","email":"","middleInitial":"N.","affiliations":[{"id":604,"text":"University of Colorado- Boulder","active":false,"usgs":true}],"preferred":false,"id":703515,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Chorover, Jon 0000-0001-9497-0195","orcid":"https://orcid.org/0000-0001-9497-0195","contributorId":139472,"corporation":false,"usgs":false,"family":"Chorover","given":"Jon","email":"","affiliations":[],"preferred":false,"id":703516,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Eberl, D. D.","contributorId":66282,"corporation":false,"usgs":true,"family":"Eberl","given":"D.","email":"","middleInitial":"D.","affiliations":[],"preferred":false,"id":703517,"contributorType":{"id":1,"text":"Authors"},"rank":7}]}}
,{"id":70189200,"text":"70189200 - 2010 - Estimating groundwater recharge","interactions":[{"subject":{"id":70156906,"text":"70156906 - 2010 - Water-budget methods","indexId":"70156906","publicationYear":"2010","noYear":false,"chapter":"2","title":"Water-budget methods"},"predicate":"IS_PART_OF","object":{"id":70189200,"text":"70189200 - 2010 - Estimating groundwater recharge","indexId":"70189200","publicationYear":"2010","noYear":false,"title":"Estimating groundwater recharge"},"id":1},{"subject":{"id":70189916,"text":"70189916 - 2010 - Modeling methods","indexId":"70189916","publicationYear":"2010","noYear":false,"chapter":"3","title":"Modeling methods"},"predicate":"IS_PART_OF","object":{"id":70189200,"text":"70189200 - 2010 - Estimating groundwater recharge","indexId":"70189200","publicationYear":"2010","noYear":false,"title":"Estimating groundwater recharge"},"id":2},{"subject":{"id":70189917,"text":"70189917 - 2010 - Heat tracer methods","indexId":"70189917","publicationYear":"2010","noYear":false,"chapter":"8","title":"Heat tracer methods"},"predicate":"IS_PART_OF","object":{"id":70189200,"text":"70189200 - 2010 - Estimating groundwater recharge","indexId":"70189200","publicationYear":"2010","noYear":false,"title":"Estimating groundwater recharge"},"id":3}],"lastModifiedDate":"2021-04-26T17:33:28.485087","indexId":"70189200","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":4,"text":"Book"},"publicationSubtype":{"id":15,"text":"Monograph"},"title":"Estimating groundwater recharge","docAbstract":"<p><span>Understanding groundwater recharge is essential for successful management of water resources and modeling fluid and contaminant transport within the subsurface. This book provides a critical evaluation of the theory and assumptions that underlie methods for estimating rates of groundwater recharge. Detailed explanations of the methods are provided - allowing readers to apply many of the techniques themselves without needing to consult additional references. Numerous practical examples highlight benefits and limitations of each method. Approximately 900 references allow advanced practitioners to pursue additional information on any method. For the first time, theoretical and practical considerations for selecting and applying methods for estimating groundwater recharge are covered in a single volume with uniform presentation. Hydrogeologists, water-resource specialists, civil and agricultural engineers, earth and environmental scientists and agronomists will benefit from this informative and practical book. It can serve as the primary text for a graduate-level course on groundwater recharge or as an adjunct text for courses on groundwater hydrology or hydrogeology.</span></p>","language":"English","publisher":"Cambridge University Press","doi":"10.1017/CBO9780511780745","usgsCitation":"Healy, R.W., 2010, Estimating groundwater recharge, 256 p., https://doi.org/10.1017/CBO9780511780745.","productDescription":"256 p.","ipdsId":"IP-017602","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":343453,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2013-04-05","publicationStatus":"PW","scienceBaseUri":"595f4c48e4b0d1f9f057e38f","contributors":{"authors":[{"text":"Healy, Richard W. 0000-0002-0224-1858 rwhealy@usgs.gov","orcid":"https://orcid.org/0000-0002-0224-1858","contributorId":658,"corporation":false,"usgs":true,"family":"Healy","given":"Richard","email":"rwhealy@usgs.gov","middleInitial":"W.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":703463,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70189205,"text":"70189205 - 2010 - Comment on “Two statistics for evaluating parameter identifiability and error reduction” by John Doherty and Randall J. Hunt","interactions":[],"lastModifiedDate":"2017-07-05T16:10:38","indexId":"70189205","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":"Comment on “Two statistics for evaluating parameter identifiability and error reduction” by John Doherty and Randall J. Hunt","docAbstract":"<p>Doherty and Hunt (2009)<span><span>&nbsp;</span>present important ideas for first-order-second moment sensitivity analysis, but five issues are discussed in this comment. First, considering the composite-scaled sensitivity (CSS) jointly with parameter correlation coefficients (PCC) in a CSS/PCC analysis addresses the difficulties with CSS mentioned in the introduction. Second, their new parameter identifiability statistic actually is likely to do a poor job of parameter identifiability in common situations. The statistic instead performs the very useful role of showing how model parameters are included in the estimated singular value decomposition (SVD) parameters. Its close relation to CSS is shown. Third, the idea from p. 125 that a suitable truncation point for SVD parameters can be identified using the prediction variance is challenged using results from<span>&nbsp;</span></span>Moore and Doherty (2005)<span>. Fourth, the relative error reduction statistic of Doherty and Hunt is shown to belong to an emerging set of statistics here named perturbed calculated variance statistics. Finally, the perturbed calculated variance statistics OPR and PPR mentioned on p. 121 are shown to explicitly include the parameter null-space component of uncertainty. Indeed, OPR and PPR results that account for null-space uncertainty have appeared in the literature since 2000.</span></p>","language":"English","publisher":"Elsevier","doi":"10.1016/j.jhydrol.2009.10.011","usgsCitation":"Hill, M.C., 2010, Comment on “Two statistics for evaluating parameter identifiability and error reduction” by John Doherty and Randall J. Hunt: Journal of Hydrology, v. 380, no. 3-4, p. 481-488, https://doi.org/10.1016/j.jhydrol.2009.10.011.","productDescription":"8 p.","startPage":"481","endPage":"488","ipdsId":"IP-013335","costCenters":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":343364,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"380","issue":"3-4","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"595dfab9e4b0d1f9f056a7bc","contributors":{"authors":[{"text":"Hill, Mary C. mchill@usgs.gov","contributorId":974,"corporation":false,"usgs":true,"family":"Hill","given":"Mary","email":"mchill@usgs.gov","middleInitial":"C.","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":703482,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70189364,"text":"70189364 - 2010 - Book review: Thermodynamics and kinetics of water-rock interaction","interactions":[],"lastModifiedDate":"2018-10-09T11:08:13","indexId":"70189364","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1490,"text":"Elements","active":true,"publicationSubtype":{"id":10}},"title":"Book review: Thermodynamics and kinetics of water-rock interaction","docAbstract":"<p>No abstract available.<br></p>","language":"English","publisher":"Mineralogical Society of America","usgsCitation":"Nordstrom, D.K., 2010, Book review: Thermodynamics and kinetics of water-rock interaction: Elements, v. 6, no. 1, p. 60-61.","productDescription":"2 p.","startPage":"60","endPage":"61","ipdsId":"IP-019154","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"links":[{"id":343617,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":343616,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://elements.geoscienceworld.org/content/6/1/60"}],"volume":"6","issue":"1","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5965c001e4b0d1f9f05b3932","contributors":{"authors":[{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":false,"id":704377,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}}
,{"id":70186154,"text":"70186154 - 2010 - How vegetation and sediment transport feedbacks drive landscape change in the Everglades and wetlands worldwide","interactions":[],"lastModifiedDate":"2018-03-15T10:56:32","indexId":"70186154","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":740,"text":"American Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"How vegetation and sediment transport feedbacks drive landscape change in the Everglades and wetlands worldwide","docAbstract":"<p><span>Mechanisms reported to promote landscape self‐organization cannot explain vegetation patterning oriented parallel to flow. Recent catastrophic shifts in Everglades landscape pattern and ecological function highlight the need to understand the feedbacks governing these ecosystems. We modeled feedback between vegetation, hydrology, and sediment transport on the basis of a decade of experimentation. Results from more than 100 simulations showed that flows just sufficient to redistribute sediment from sparsely vegetated sloughs to dense ridges were needed for an equilibrium patterned landscape oriented parallel to flow. Surprisingly, although vegetation heterogeneity typically conveys resilience, in wetlands governed by flow/sediment feedbacks it indicates metastability, whereby the landscape is prone to catastrophic shifts. Substantial increases or decreases in flow relative to the equilibrium condition caused an expansion of emergent vegetation and loss of open‐water areas that was unlikely to revert upon restoration of the equilibrium hydrology. Understanding these feedbacks is critical in forecasting wetland responses to changing conditions and designing management strategies that optimize ecosystem services, such as carbon sequestration or habitat provision. Our model and new sensitivity analysis techniques address these issues and make it newly apparent that simply returning flow to predrainage conditions in the Everglades may not be sufficient to restore historic landscape patterns and processes.</span></p>","language":"English","publisher":"American Society of Naturalists","doi":"10.1086/655215","usgsCitation":"Larsen, L., and Harvey, J.W., 2010, How vegetation and sediment transport feedbacks drive landscape change in the Everglades and wetlands worldwide: American Naturalist, v. 176, no. 3, p. E66-E79, https://doi.org/10.1086/655215.","productDescription":"14 p.","startPage":"E66","endPage":"E79","ipdsId":"IP-010084","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"links":[{"id":338799,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"176","issue":"3","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"58de1952e4b02ff32c699cbb","contributors":{"authors":[{"text":"Larsen, Laurel G. lglarsen@usgs.gov","contributorId":1987,"corporation":false,"usgs":true,"family":"Larsen","given":"Laurel G.","email":"lglarsen@usgs.gov","affiliations":[],"preferred":false,"id":687686,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Harvey, Judson W. 0000-0002-2654-9873 jwharvey@usgs.gov","orcid":"https://orcid.org/0000-0002-2654-9873","contributorId":1796,"corporation":false,"usgs":true,"family":"Harvey","given":"Judson","email":"jwharvey@usgs.gov","middleInitial":"W.","affiliations":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true}],"preferred":true,"id":687685,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
,{"id":70036481,"text":"70036481 - 2010 - Sap flux-scaled transpiration by tamarisk (Tamarix spp.) before, during and after episodic defoliation by the saltcedar leaf beetle (Diorhabda carinulata)","interactions":[],"lastModifiedDate":"2012-03-12T17:22:04","indexId":"70036481","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":681,"text":"Agricultural and Forest Meteorology","active":true,"publicationSubtype":{"id":10}},"title":"Sap flux-scaled transpiration by tamarisk (Tamarix spp.) before, during and after episodic defoliation by the saltcedar leaf beetle (Diorhabda carinulata)","docAbstract":"The release of the saltcedar beetle (Diorhabda carinulata) has resulted in the periodic defoliation of tamarisk (Tamarix spp.) along more than 1000 river km in the upper Colorado River Basin and is expected to spread along many other river reaches throughout the upper basin, and possibly into the lower Colorado River Basin. Identifying the impacts of these release programs on tamarisk water use and subsequent water cycling in arid riparian systems are largely unknown, due in part to the difficulty of measuring water fluxes in these systems. We used lab-calibrated, modified heat-dissipation sap flux sensors to monitor tamarisk water use (n=20 trees) before, during and after defoliation by the saltcedar leaf beetle during the 2008 and 2009 growing seasons (May-October) in southeastern Utah. We incorporated a simple model that related mean stem sap flux density (Js) with atmospheric vapor pressure deficit (vpd) before the onset of defoliation in 2008. The model was used to calculate differences between predicted Js and Js measured throughout the two growing seasons. Episodic defoliation resulted in a 16% reduction in mean annual rates of Js in both 2008 and 2009, with decreases occurring only during the periods in which the trees were defoliated (about 6-8 weeks per growing season). In other words, rates of Js rebounded to values predicted by the model when the trees produced new leaves after defoliation. Sap flux data were scaled to stand water use by constructing a tamarisk-specific allometric equation to relate conducting sapwood area to stem diameter, and by measuring the size distribution of stems within the stand. Total water use in both years was 0.224m, representing a reduction of about 0.04myr-1. Results showed that repeated defoliation/refoliation cycles did not result in a progressive decrease in either leaf production or water use over the duration of the study. This investigation improves ground-based estimates of tamarisk water use, and will support future efforts to characterize impacts of the beetle on basin-wide hydrologic processes. ?? 2010 Elsevier B.V.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Agricultural and Forest Meteorology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.agrformet.2010.07.009","issn":"01681923","usgsCitation":"Hultine, K.R., Nagler, P., Morino, K., Bush, S., Burtch, K., Dennison, P., Glenn, E.P., and Ehleringer, J., 2010, Sap flux-scaled transpiration by tamarisk (Tamarix spp.) before, during and after episodic defoliation by the saltcedar leaf beetle (Diorhabda carinulata): Agricultural and Forest Meteorology, v. 150, no. 11, p. 1467-1475, https://doi.org/10.1016/j.agrformet.2010.07.009.","startPage":"1467","endPage":"1475","numberOfPages":"9","costCenters":[],"links":[{"id":218265,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.agrformet.2010.07.009"},{"id":246261,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"150","issue":"11","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b86bde4b08c986b3160de","contributors":{"authors":[{"text":"Hultine, K. R.","contributorId":102281,"corporation":false,"usgs":false,"family":"Hultine","given":"K.","middleInitial":"R.","affiliations":[],"preferred":false,"id":456352,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nagler, P.L. 0000-0003-0674-103X","orcid":"https://orcid.org/0000-0003-0674-103X","contributorId":29937,"corporation":false,"usgs":true,"family":"Nagler","given":"P.L.","affiliations":[],"preferred":false,"id":456348,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Morino, K.","contributorId":10614,"corporation":false,"usgs":true,"family":"Morino","given":"K.","affiliations":[],"preferred":false,"id":456345,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Bush, S.E.","contributorId":78567,"corporation":false,"usgs":true,"family":"Bush","given":"S.E.","email":"","affiliations":[],"preferred":false,"id":456351,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Burtch, K.G.","contributorId":18213,"corporation":false,"usgs":true,"family":"Burtch","given":"K.G.","email":"","affiliations":[],"preferred":false,"id":456346,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Dennison, P.E.","contributorId":73430,"corporation":false,"usgs":true,"family":"Dennison","given":"P.E.","email":"","affiliations":[],"preferred":false,"id":456350,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Glenn, E. P.","contributorId":24463,"corporation":false,"usgs":false,"family":"Glenn","given":"E.","middleInitial":"P.","affiliations":[],"preferred":false,"id":456347,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Ehleringer, J.R.","contributorId":47965,"corporation":false,"usgs":true,"family":"Ehleringer","given":"J.R.","email":"","affiliations":[],"preferred":false,"id":456349,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70156709,"text":"70156709 - 2010 - Estimating natural background groundwater chemistry, Questa molybdenum mine, New Mexico","interactions":[],"lastModifiedDate":"2021-10-29T14:49:01.0062","indexId":"70156709","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"title":"Estimating natural background groundwater chemistry, Questa molybdenum mine, New Mexico","docAbstract":"<p><span>This 2 1/2 day field trip will present an overview of a U.S. Geological Survey (USGS) project whose objective was to estimate pre-mining groundwater chemistry at the Questa molybdenum mine, New Mexico. Because of intense debate among stakeholders regarding pre-mining groundwater chemistry standards, the New Mexico Environment Department and Chevron Mining Inc. (formerly Molycorp) agreed that the USGS should determine pre-mining groundwater quality at the site. In 2001, the USGS began a 5-year, multidisciplinary investigation to estimate pre-mining groundwater chemistry utilizing a detailed assessment of a proximal natural analog site and applied an interdisciplinary approach to infer pre-mining conditions. The trip will include a surface tour of the Questa mine and key locations in the erosion scar areas and along the Red River. The trip will provide participants with a detailed understanding of geochemical processes that influence pre-mining environmental baselines in mineralized areas and estimation techniques for determining pre-mining baseline conditions.</span></p>","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Through the generations: Geologic and anthropogenic field excursions in the Rocky Mountains from modern to ancient","largerWorkSubtype":{"id":15,"text":"Monograph"},"language":"English","publisher":"Geological Society of America","publisherLocation":"Boulder, Colo.","doi":"10.1130/2010.0018(07)​","usgsCitation":"Verplanck, P.L., Nordstrom, D.K., Plumlee, G.S., and Walker, B.M., 2010, Estimating natural background groundwater chemistry, Questa molybdenum mine, New Mexico, chap. <i>of</i> Through the generations: Geologic and anthropogenic field excursions in the Rocky Mountains from modern to ancient, p. 141-161, https://doi.org/10.1130/2010.0018(07)​.","productDescription":"21 p.","startPage":"141","endPage":"161","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-021889","costCenters":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":307562,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"New Mexico","otherGeospatial":"Questa molybdenum mine","geographicExtents":"{\n  \"type\": \"FeatureCollection\",\n  \"features\": [\n    {\n      \"type\": \"Feature\",\n      \"properties\": {},\n      \"geometry\": {\n        \"type\": \"Polygon\",\n        \"coordinates\": [\n          [\n            [\n              -105.51406860351562,\n              36.697053200100335\n            ],\n            [\n              -105.51406860351562,\n              36.717971509608496\n            ],\n            [\n              -105.47492980957031,\n              36.717971509608496\n            ],\n            [\n              -105.47492980957031,\n              36.697053200100335\n            ],\n            [\n              -105.51406860351562,\n              36.697053200100335\n            ]\n          ]\n        ]\n      }\n    }\n  ]\n}","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57fe82cce4b0824b2d1487a7","contributors":{"editors":[{"text":"Morgan, Lisa A.","contributorId":66300,"corporation":false,"usgs":true,"family":"Morgan","given":"Lisa","email":"","middleInitial":"A.","affiliations":[{"id":481,"text":"Northern Rocky Mountain Science Center","active":true,"usgs":true}],"preferred":false,"id":570208,"contributorType":{"id":2,"text":"Editors"},"rank":1},{"text":"Quane, Steven L.","contributorId":113160,"corporation":false,"usgs":true,"family":"Quane","given":"Steven","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":570209,"contributorType":{"id":2,"text":"Editors"},"rank":2}],"authors":[{"text":"Verplanck, Phillip L. 0000-0002-3653-6419","orcid":"https://orcid.org/0000-0002-3653-6419","contributorId":62698,"corporation":false,"usgs":true,"family":"Verplanck","given":"Phillip","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":570204,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Nordstrom, D. Kirk 0000-0003-3283-5136 dkn@usgs.gov","orcid":"https://orcid.org/0000-0003-3283-5136","contributorId":749,"corporation":false,"usgs":true,"family":"Nordstrom","given":"D.","email":"dkn@usgs.gov","middleInitial":"Kirk","affiliations":[{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":37277,"text":"WMA - Earth System Processes Division","active":true,"usgs":true}],"preferred":false,"id":570205,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Plumlee, Geoffrey S. 0000-0002-9607-5626 gplumlee@usgs.gov","orcid":"https://orcid.org/0000-0002-9607-5626","contributorId":960,"corporation":false,"usgs":true,"family":"Plumlee","given":"Geoffrey","email":"gplumlee@usgs.gov","middleInitial":"S.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":570206,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Walker, Bruce M.","contributorId":64684,"corporation":false,"usgs":true,"family":"Walker","given":"Bruce","email":"","middleInitial":"M.","affiliations":[],"preferred":false,"id":570207,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}}
,{"id":70034191,"text":"70034191 - 2010 - Mineralogical and chemical characteristics of some natural jarosites","interactions":[],"lastModifiedDate":"2018-10-29T10:52:43","indexId":"70034191","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1759,"text":"Geochimica et Cosmochimica Acta","active":true,"publicationSubtype":{"id":10}},"title":"Mineralogical and chemical characteristics of some natural jarosites","docAbstract":"<p>This paper presents a detailed study of the mineralogical, microscopic, thermal, and spectral characteristics of jarosite and natrojarosite minerals. Systematic mineralogic and chemical examination of a suite of 32 natural stoichiometric jarosite and natrojarosite samples from diverse supergene and hydrothermal environments indicates that there is only limited solid solution between Na and K at low temperatures, which suggests the presence of a solvus in the jarosite-natrojarosite system at temperatures below about 140 C. The samples examined in this study consist of either end members or coexisting end-member pairs of jarosite and natrojarosite. Quantitative electron-probe microanalysis data for several natural hydrothermal samples show only end-member compositions for individual grains or zones, and no detectable alkali-site deficiencies, which indicates that there is no hydronium substitution within the analytical uncertainty of the method. In addition, there is no evidence of Fe deficiencies in the natural hydrothermal samples. Hydronium-bearing jarosite was detected in only one relatively young supergene sample suggesting that terrestrial hydronium-bearing jarosites generally are unstable over geologic timescales.</p><p><br>Unit-cell parameters of the 20 natural stoichiometric jarosites and 12 natural stoichiometric natrojarosites examined in this study have distinct and narrow ranges in the a- and c-cell dimensions. There is no overlap of these parameters at the 1r level for the two end-member compositions. Several hydrothermal samples consist of fine-scale (2–10 lm) intimate intergrowths of jarosite and natrojarosite, which could have resulted from solid-state diffusion segregation or growth zoning due to variations in the Na/K activity ratio of hydrothermal solutions.</p>","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geochimica et Cosmochimica Acta","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"Elsevier","doi":"10.1016/j.gca.2009.11.006","issn":"00167037","usgsCitation":"Desborough, G.A., Smith, K.S., Lowers, H.A., Swayze, G.A., Hammarstrom, J.M., Diehl, S.F., Leinz, R.W., and Driscoll, R.L., 2010, Mineralogical and chemical characteristics of some natural jarosites: Geochimica et Cosmochimica Acta, v. 74, no. 3, p. 1041-1056, https://doi.org/10.1016/j.gca.2009.11.006.","productDescription":"16 p.","startPage":"1041","endPage":"1056","costCenters":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":244647,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":216760,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.gca.2009.11.006"}],"volume":"74","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a5a90e4b0c8380cd6ef7a","contributors":{"authors":[{"text":"Desborough, George A.","contributorId":101661,"corporation":false,"usgs":true,"family":"Desborough","given":"George","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":444538,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Smith, Kathleen S. 0000-0001-8547-9804 ksmith@usgs.gov","orcid":"https://orcid.org/0000-0001-8547-9804","contributorId":182,"corporation":false,"usgs":true,"family":"Smith","given":"Kathleen","email":"ksmith@usgs.gov","middleInitial":"S.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":444539,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Lowers, Heather A. 0000-0001-5360-9264 hlowers@usgs.gov","orcid":"https://orcid.org/0000-0001-5360-9264","contributorId":191307,"corporation":false,"usgs":true,"family":"Lowers","given":"Heather","email":"hlowers@usgs.gov","middleInitial":"A.","affiliations":[{"id":35995,"text":"Geology, Geophysics, and Geochemistry Science Center","active":true,"usgs":true},{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":444536,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Swayze, Gregg A. 0000-0002-1814-7823 gswayze@usgs.gov","orcid":"https://orcid.org/0000-0002-1814-7823","contributorId":518,"corporation":false,"usgs":true,"family":"Swayze","given":"Gregg","email":"gswayze@usgs.gov","middleInitial":"A.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true},{"id":309,"text":"Geology and Geophysics Science Center","active":true,"usgs":true}],"preferred":true,"id":444535,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Hammarstrom, Jane M. 0000-0003-2742-3460 jhammars@usgs.gov","orcid":"https://orcid.org/0000-0003-2742-3460","contributorId":1226,"corporation":false,"usgs":true,"family":"Hammarstrom","given":"Jane","email":"jhammars@usgs.gov","middleInitial":"M.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true},{"id":387,"text":"Mineral Resources Program","active":true,"usgs":true}],"preferred":true,"id":444537,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Diehl, Sharon F. diehl@usgs.gov","contributorId":1089,"corporation":false,"usgs":true,"family":"Diehl","given":"Sharon","email":"diehl@usgs.gov","middleInitial":"F.","affiliations":[{"id":211,"text":"Crustal Geophysics and Geochemistry Science Center","active":true,"usgs":true}],"preferred":true,"id":444541,"contributorType":{"id":1,"text":"Authors"},"rank":6},{"text":"Leinz, Reinhard W.","contributorId":60628,"corporation":false,"usgs":true,"family":"Leinz","given":"Reinhard","email":"","middleInitial":"W.","affiliations":[],"preferred":false,"id":444542,"contributorType":{"id":1,"text":"Authors"},"rank":7},{"text":"Driscoll, Rhonda L. 0000-0001-7725-8956 rdriscoll@usgs.gov","orcid":"https://orcid.org/0000-0001-7725-8956","contributorId":745,"corporation":false,"usgs":true,"family":"Driscoll","given":"Rhonda","email":"rdriscoll@usgs.gov","middleInitial":"L.","affiliations":[{"id":171,"text":"Central Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":true,"id":444540,"contributorType":{"id":1,"text":"Authors"},"rank":8}]}}
,{"id":70037687,"text":"70037687 - 2010 - Determining the effects of dams on subdaily variation in river flows at a whole-basin scale","interactions":[],"lastModifiedDate":"2012-04-30T16:43:35","indexId":"70037687","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3301,"text":"River Research and Applications","active":true,"publicationSubtype":{"id":10}},"title":"Determining the effects of dams on subdaily variation in river flows at a whole-basin scale","docAbstract":"River regulation can alter the frequency and magnitude of subdaily flow variations causing major impacts on ecological structure and function. We developed an approach to quantify subdaily flow variation for multiple sites across a large watershed to assess the potential impacts of different dam operations (flood control, run-of-river hydropower and peaking hydropower) on natural communities. We used hourly flow data over a 9-year period from 30 stream gages throughout the Connecticut River basin to calculate four metrics of subdaily flow variation and to compare sites downstream of dams with unregulated sites. Our objectives were to (1) determine the temporal scale of data needed to characterize subdaily variability; (2) compare the frequency of days with high subdaily flow variation downstream of dams and unregulated sites; (3) analyse the magnitude of subdaily variation at all sites and (4) identify individual sites that had subdaily variation significantly higher than unregulated locations. We found that estimates of flow variability based on daily mean flow data were not sufficient to characterize subdaily flow patterns. Alteration of subdaily flows was evident in the number of days natural ranges of variability were exceeded, rather than in the magnitude of subdaily variation, suggesting that all rivers may exhibit highly variable subdaily flows, but altered rivers exhibit this variability more frequently. Peaking hydropower facilities had the most highly altered subdaily flows; however, we observed significantly altered ranges of subdaily variability downstream of some flood-control and run-of-river hydropower dams. Our analysis can be used to identify situations where dam operating procedures could be modified to reduce the level of hydrologic alteration. ?? 2009 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"River Research and Applications","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/rra.1324","issn":"15351459","usgsCitation":"Zimmerman, J.K., Letcher, B., Nislow, K., Lutz, K., and Magilligan, F., 2010, Determining the effects of dams on subdaily variation in river flows at a whole-basin scale: River Research and Applications, v. 26, no. 10, p. 1246-1260, https://doi.org/10.1002/rra.1324.","startPage":"1246","endPage":"1260","numberOfPages":"15","costCenters":[],"links":[{"id":217966,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/rra.1324"},{"id":245939,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"26","issue":"10","noUsgsAuthors":false,"publicationDate":"2010-11-24","publicationStatus":"PW","scienceBaseUri":"5059fff6e4b0c8380cd4f4d3","contributors":{"authors":[{"text":"Zimmerman, J. K. H.","contributorId":105898,"corporation":false,"usgs":false,"family":"Zimmerman","given":"J.","email":"","middleInitial":"K. H.","affiliations":[],"preferred":false,"id":462296,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Letcher, B. H. 0000-0003-0191-5678","orcid":"https://orcid.org/0000-0003-0191-5678","contributorId":48132,"corporation":false,"usgs":true,"family":"Letcher","given":"B.","middleInitial":"H.","affiliations":[{"id":365,"text":"Leetown Science Center","active":true,"usgs":true}],"preferred":false,"id":462294,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Nislow, K.H.","contributorId":66477,"corporation":false,"usgs":true,"family":"Nislow","given":"K.H.","affiliations":[],"preferred":false,"id":462295,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Lutz, K.A.","contributorId":42069,"corporation":false,"usgs":true,"family":"Lutz","given":"K.A.","email":"","affiliations":[],"preferred":false,"id":462293,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Magilligan, F.J.","contributorId":12298,"corporation":false,"usgs":true,"family":"Magilligan","given":"F.J.","affiliations":[],"preferred":false,"id":462292,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}}
,{"id":70176183,"text":"70176183 - 2010 - Ecological distribution and population physiology defined by proteomics in a natural microbial community","interactions":[],"lastModifiedDate":"2018-10-10T14:52:20","indexId":"70176183","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":5199,"text":"Molecular Systems Biology","active":true,"publicationSubtype":{"id":10}},"title":"Ecological distribution and population physiology defined by proteomics in a natural microbial community","docAbstract":"<p><span>An important challenge in microbial ecology is developing methods that simultaneously examine the physiology of organisms at the molecular level and their ecosystem level interactions in complex natural systems. We integrated extensive proteomic, geochemical, and biological information from 28 microbial communities collected from an acid mine drainage environment and representing a range of biofilm development stages and geochemical conditions to evaluate how the physiologies of the dominant and less abundant organisms change along environmental gradients. The initial colonist dominates across all environments, but its proteome changes between two stable states as communities diversify, implying that interspecies interactions affect this organism's metabolism. Its overall physiology is robust to abiotic environmental factors, but strong correlations exist between these factors and certain subsets of proteins, possibly accounting for its wide environmental distribution. Lower abundance populations are patchier in their distribution, and proteomic data indicate that their environmental niches may be constrained by specific sets of abiotic environmental factors. This research establishes an effective strategy to investigate ecological relationships between microbial physiology and the environment for whole communities </span><i>in situ</i><span>.</span></p>","language":"English","publisher":"EMBOpress","doi":"10.1038/msb.2010.30","usgsCitation":"Mueller, R.S., Denef, V.J., Kalnejais, L.H., Suttle, K.B., Thomas, B.C., Wilmes, P., Smith, R.L., Nordstrom, D.K., McCleskey, R.B., Shah, M.B., VerBekmoes, N.C., Hettich, R.L., and Banfield, J.F., 2010, Ecological distribution and population physiology defined by proteomics in a natural microbial community: Molecular Systems Biology, v. 6, no. 1, 374; 12 p., https://doi.org/10.1038/msb.2010.30.","productDescription":"374; 12 p.","ipdsId":"IP-014939","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true},{"id":5047,"text":"NGTOC Denver","active":true,"usgs":true}],"links":[{"id":475825,"rank":0,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1038/msb.2010.30","text":"Publisher Index Page"},{"id":328147,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"6","issue":"1","publishingServiceCenter":{"id":2,"text":"Denver PSC"},"noUsgsAuthors":false,"publicationDate":"2010-06-08","publicationStatus":"PW","scienceBaseUri":"57c7ffb2e4b0f2f0cebfc251","contributors":{"authors":[{"text":"Mueller, Ryan S.","contributorId":174176,"corporation":false,"usgs":false,"family":"Mueller","given":"Ryan","email":"","middleInitial":"S.","affiliations":[{"id":27377,"text":"Univ. of CA, Berkeley, CA","active":true,"usgs":false}],"preferred":false,"id":647639,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Denef, Vincent J.","contributorId":174177,"corporation":false,"usgs":false,"family":"Denef","given":"Vincent","email":"","middleInitial":"J.","affiliations":[{"id":27377,"text":"Univ. of CA, Berkeley, CA","active":true,"usgs":false}],"preferred":false,"id":647640,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kalnejais, Linda H.","contributorId":24865,"corporation":false,"usgs":true,"family":"Kalnejais","given":"Linda","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":647636,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Suttle, K. 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Lab, Oak Ridge, TN","active":true,"usgs":false}],"preferred":false,"id":647638,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Hettich, Robert L.","contributorId":174181,"corporation":false,"usgs":false,"family":"Hettich","given":"Robert","email":"","middleInitial":"L.","affiliations":[{"id":27380,"text":"Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA","active":true,"usgs":false}],"preferred":false,"id":647644,"contributorType":{"id":1,"text":"Authors"},"rank":12},{"text":"Banfield, Jillian F.","contributorId":152634,"corporation":false,"usgs":false,"family":"Banfield","given":"Jillian","email":"","middleInitial":"F.","affiliations":[{"id":18952,"text":"Department of Earth and Planetary Science, University of California Berkeley, CA 94720, USA","active":true,"usgs":false}],"preferred":false,"id":647645,"contributorType":{"id":1,"text":"Authors"},"rank":13}]}}
,{"id":70146187,"text":"70146187 - 2010 - Three-dimensional benchmark for variable-density flow and transport simulation: matching semi-analytic stability modes for steady unstable convection in an inclined porous box","interactions":[],"lastModifiedDate":"2018-10-09T10:52:46","indexId":"70146187","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1923,"text":"Hydrogeology Journal","active":true,"publicationSubtype":{"id":10}},"title":"Three-dimensional benchmark for variable-density flow and transport simulation: matching semi-analytic stability modes for steady unstable convection in an inclined porous box","docAbstract":"<p><span>This benchmark for three-dimensional (3D) numerical simulators of variable-density groundwater flow and solute or energy transport consists of matching simulation results with the semi-analytical solution for the transition from one steady-state convective mode to another in a porous box. Previous experimental and analytical studies of natural convective flow in an inclined porous layer have shown that there are a variety of convective modes possible depending on system parameters, geometry and inclination. In particular, there is a well-defined transition from the helicoidal mode consisting of downslope longitudinal rolls superimposed upon an upslope unicellular roll to a mode consisting of purely an upslope unicellular roll. Three-dimensional benchmarks for variable-density simulators are currently (2009) lacking and comparison of simulation results with this transition locus provides an unambiguous means to test the ability of such simulators to represent steady-state unstable 3D variable-density physics.</span></p>","language":"English","publisher":"Springer","doi":"10.1007/s10040-009-0556-6","usgsCitation":"Voss, C.I., Simmons, C.T., and Robinson, N.I., 2010, Three-dimensional benchmark for variable-density flow and transport simulation: matching semi-analytic stability modes for steady unstable convection in an inclined porous box: Hydrogeology Journal, v. 18, no. 1, p. 5-23, https://doi.org/10.1007/s10040-009-0556-6.","productDescription":"19 p.","startPage":"5","endPage":"23","onlineOnly":"N","additionalOnlineFiles":"N","ipdsId":"IP-015037","costCenters":[{"id":436,"text":"National Research Program - Eastern Branch","active":true,"usgs":true},{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":299647,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"18","issue":"1","publishingServiceCenter":{"id":9,"text":"Reston PSC"},"noUsgsAuthors":false,"publicationDate":"2009-12-10","publicationStatus":"PW","scienceBaseUri":"552e3a30e4b0b22a157fa0af","contributors":{"authors":[{"text":"Voss, Clifford I. 0000-0001-5923-2752 cvoss@usgs.gov","orcid":"https://orcid.org/0000-0001-5923-2752","contributorId":1559,"corporation":false,"usgs":true,"family":"Voss","given":"Clifford","email":"cvoss@usgs.gov","middleInitial":"I.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true}],"preferred":true,"id":544735,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Simmons, Craig T.","contributorId":71889,"corporation":false,"usgs":false,"family":"Simmons","given":"Craig","email":"","middleInitial":"T.","affiliations":[{"id":13412,"text":"Flinders University, Australia","active":true,"usgs":false}],"preferred":false,"id":544736,"contributorType":{"id":1,"text":"Authors"},"rank":11},{"text":"Robinson, Neville I.","contributorId":140205,"corporation":false,"usgs":false,"family":"Robinson","given":"Neville","email":"","middleInitial":"I.","affiliations":[{"id":13412,"text":"Flinders University, Australia","active":true,"usgs":false}],"preferred":false,"id":544737,"contributorType":{"id":1,"text":"Authors"},"rank":12}]}}
,{"id":70155134,"text":"70155134 - 2010 - Summary of groundwater-recharge estimates for Pennsylvania","interactions":[],"lastModifiedDate":"2017-05-13T16:43:11","indexId":"70155134","displayToPublicDate":"2010-01-01T00:00:00","publicationYear":"2010","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":2,"text":"State or Local Government Series"},"seriesTitle":{"id":143,"text":"Water Resource Report","active":false,"publicationSubtype":{"id":2}},"seriesNumber":"70","title":"Summary of groundwater-recharge estimates for Pennsylvania","docAbstract":"<p>Groundwater recharge is water that infiltrates through the subsurface to the zone of saturation beneath the water table. Because recharge is a difficult parameter to quantify, it is typically estimated from measurements of other parameters like streamflow and precipitation. This report provides a general overview of processes affecting recharge in Pennsylvania and presents estimates of recharge rates from studies at various scales.</p><p>The most common method for estimating recharge in Pennsylvania has been to estimate base flow from measurements of streamflow and assume that base flow (expressed in inches over the basin) approximates recharge. Statewide estimates of mean annual groundwater recharge were developed by relating base flow to basin characteristics of HUC10 watersheds (a fifth-level classification that uses 10 digits to define unique hydrologic units) using a regression equation. The regression analysis indicated that mean annual precipitation, average daily maximum temperature, percent of sand in soil, percent of carbonate rock in the watershed, and average stream-channel slope were significant factors in the explaining the variability of groundwater recharge across the Commonwealth.</p><p>Several maps are included in this report to illustrate the principal factors affecting recharge and provide additional information about the spatial distribution of recharge in Pennsylvania. The maps portray the patterns of precipitation, temperature, prevailing winds across Pennsylvania’s varied physiography; illustrate the error associated with recharge estimates; and show the spatial variability of recharge as a percent of precipitation. National, statewide, regional, and local values of recharge, based on numerous studies, are compiled to allow comparison of estimates from various sources. Together these plates provide a synopsis of groundwater-recharge estimations and factors in Pennsylvania.</p><p>Areas that receive the most recharge are typically those that get the most rainfall, have favorable surface conditions for infiltration, and are less susceptible to the influences of high temperatures, and thus, evapotranspiration. Areas that have less recharge in Pennsylvania are typically those with less precipitation, less permeable soils, and higher temperatures that are conducive to greater rates of evapotranspiration.</p>","language":"English","publisher":"Pennsylvania Geological Survey","publisherLocation":"Harrisburg, PA","usgsCitation":"Reese, S.O., and Risser, D.W., 2010, Summary of groundwater-recharge estimates for Pennsylvania: Water Resource Report 70, ii, 18 p.","productDescription":"ii, 18 p.","numberOfPages":"28","ipdsId":"IP-018178","costCenters":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"links":[{"id":341278,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":305760,"type":{"id":15,"text":"Index Page"},"url":"https://www.dcnr.state.pa.us/topogeo/publications/pgspub/water/index.htm"}],"country":"United States","state":"Pennsylvania","publishingServiceCenter":{"id":10,"text":"Baltimore PSC"},"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"59181b33e4b044b359e48915","contributors":{"authors":[{"text":"Reese, Stuart O.","contributorId":145639,"corporation":false,"usgs":false,"family":"Reese","given":"Stuart","email":"","middleInitial":"O.","affiliations":[{"id":16182,"text":"Pennsylvania Geological Survey","active":true,"usgs":false}],"preferred":false,"id":564864,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Risser, Dennis W. 0000-0001-9597-5406 dwrisser@usgs.gov","orcid":"https://orcid.org/0000-0001-9597-5406","contributorId":898,"corporation":false,"usgs":true,"family":"Risser","given":"Dennis","email":"dwrisser@usgs.gov","middleInitial":"W.","affiliations":[{"id":532,"text":"Pennsylvania Water Science Center","active":true,"usgs":true}],"preferred":true,"id":564863,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}}
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