{"pageNumber":"2458","pageRowStart":"61425","pageSize":"25","recordCount":184644,"records":[{"id":70030365,"text":"70030365 - 2006 - Scale effects of hydrostratigraphy and recharge zonation on base flow","interactions":[],"lastModifiedDate":"2012-03-12T17:21:12","indexId":"70030365","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1861,"text":"Ground Water","active":true,"publicationSubtype":{"id":10}},"title":"Scale effects of hydrostratigraphy and recharge zonation on base flow","docAbstract":"Uncertainty regarding spatial variations of model parameters often results in the simplifying assumption that parameters are spatially uniform. However, spatial variability may be important in resource assessment and model calibration. In this paper, a methodology is presented for estimating a critical basin size, above which base flows appear to be relatively less sensitive to the spatial distribution of recharge and hydraulic conductivity, and below which base flows are relatively more sensitive to this spatial variability. Application of the method is illustrated for a watershed that exhibits distinct infiltration patterns and hydrostratigraphic layering. A ground water flow model (MODFLOW) and a parameter estimation code (UCODE) were used to evaluate the influence of recharge zonation and hydrostratigraphic layering on base flow distribution. Optimization after removing spatial recharge variability from the calibrated model altered base flow simulations up to 53% in watersheds smaller than 40 km2. Merging six hydrostratigraphic units into one unit with average properties increased base flow residuals up to 83% in basins smaller than 50 km2. Base flow residuals changed <5% in watersheds larger than 40 and 50 km2 when recharge and hydrostratigraphy were simplified, respectively; thus, the critical basin size for the example area is ???40 to 50 km2. Once identified for an area, a critical basin size could be used to guide the scale of future investigations. By ensuring that parameter discretization needed to capture base flow distribution is commensurate with the scope of the investigation, uncertainty caused by overextending uniform parameterization or by estimating extra parameter values is reduced. ?? 2006 National Ground Water Association.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Ground Water","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1745-6584.2005.00136.x","issn":"0017467X","usgsCitation":"Juckem, P., Hunt, R.J., and Anderson, M.P., 2006, Scale effects of hydrostratigraphy and recharge zonation on base flow: Ground Water, v. 44, no. 3, p. 362-370, https://doi.org/10.1111/j.1745-6584.2005.00136.x.","startPage":"362","endPage":"370","numberOfPages":"9","costCenters":[],"links":[{"id":212121,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1745-6584.2005.00136.x"},{"id":239547,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"44","issue":"3","noUsgsAuthors":false,"publicationDate":"2005-11-18","publicationStatus":"PW","scienceBaseUri":"505b8709e4b08c986b316282","contributors":{"authors":[{"text":"Juckem, P. F.","contributorId":24819,"corporation":false,"usgs":true,"family":"Juckem","given":"P. F.","affiliations":[],"preferred":false,"id":426871,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hunt, R. J.","contributorId":40164,"corporation":false,"usgs":true,"family":"Hunt","given":"R.","email":"","middleInitial":"J.","affiliations":[],"preferred":false,"id":426872,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Anderson, Marilyn P.","contributorId":102970,"corporation":false,"usgs":true,"family":"Anderson","given":"Marilyn","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":426873,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70030256,"text":"70030256 - 2006 - Fault parameter constraints using relocated earthquakes: A validation of first-motion focal-mechanism data","interactions":[],"lastModifiedDate":"2016-08-29T15:25:25","indexId":"70030256","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Fault parameter constraints using relocated earthquakes: A validation of first-motion focal-mechanism data","docAbstract":"

We estimate the strike and dip of three California fault segments (Calaveras, Sargent, and a portion of the San Andreas near San Jaun Bautistia) based on principle component analysis of accurately located microearthquakes. We compare these fault orientations with two different first-motion focal mechanism catalogs: the Northern California Earthquake Data Center (NCEDC) catalog, calculated using the FPFIT algorithm (Reasenberg and Oppenheimer, 1985), and a catalog created using the HASH algorithm that tests mechanism stability relative to seismic velocity model variations and earthquake location (Hardebeck and Shearer, 2002). We assume any disagreement (misfit >30° in strike, dip, or rake) indicates inaccurate focal mechanisms in the catalogs. With this assumption, we can quantify the parameters that identify the most optimally constrained focal mechanisms. For the NCEDC/FPFIT catalogs, we find that the best quantitative discriminator of quality focal mechanisms is the station distribution ratio (STDR) parameter, an indicator of how the stations are distributed about the focal sphere. Requiring STDR > 0.65 increases the acceptable mechanisms from 34%–37% to 63%–68%. This suggests stations should be uniformly distributed surrounding, rather than aligning, known fault traces. For the HASH catalogs, the fault plane uncertainty (FPU) parameter is the best discriminator, increasing the percent of acceptable mechanisms from 63%–78% to 81%–83% when FPU ≤ 35°. The overall higher percentage of acceptable mechanisms and the usefulness of the formal uncertainty in identifying quality mechanisms validate the HASH approach of testing for mechanism stability.

","language":"English","publisher":"Seismological Society of America","doi":"10.1785/0120040239","issn":"00371106","usgsCitation":"Kilb, D., and Hardebeck, J., 2006, Fault parameter constraints using relocated earthquakes: A validation of first-motion focal-mechanism data: Bulletin of the Seismological Society of America, v. 96, no. 3, p. 1140-1158, https://doi.org/10.1785/0120040239.","productDescription":"19 p.","startPage":"1140","endPage":"1158","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[],"links":[{"id":239366,"rank":1,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"96","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0f1ae4b0c8380cd5377e","contributors":{"authors":[{"text":"Kilb, Debi","contributorId":90892,"corporation":false,"usgs":true,"family":"Kilb","given":"Debi","affiliations":[],"preferred":false,"id":426349,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Hardebeck, J.L.","contributorId":98862,"corporation":false,"usgs":true,"family":"Hardebeck","given":"J.L.","email":"","affiliations":[],"preferred":false,"id":426350,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70030340,"text":"70030340 - 2006 - The contingent behavior of charter fishing participants on the Chesapeake Bay: Welfare estimates associated with water quality improvements","interactions":[],"lastModifiedDate":"2012-03-12T17:21:02","indexId":"70030340","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2261,"text":"Journal of Environmental Planning and Management","active":true,"publicationSubtype":{"id":10}},"title":"The contingent behavior of charter fishing participants on the Chesapeake Bay: Welfare estimates associated with water quality improvements","docAbstract":"Water quality in the Chesapeake Bay has deteriorated over recent years. Historically, fishing has contributed to the region's local economy in terms of commercial and recreational harvests. A contingent behavior model is used to estimate welfare measures for charter fishing participants with regard to a hypothetical improvement in water quality. Using a truncated Poisson count model corrected for endogenous stratification, it was found that charter fishers not only contribute to the local market economy, but they also place positive non-market value on preserving the Bay's water quality. Using two estimates for travels costs it is estimated that the individual consumer surplus is $200 and $117 per trip, and the average individual consumer surplus values for an improvement in water quality is $75 and $44 for two models estimated. ?? 2006 University of Newcastle upon Tyne.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Environmental Planning and Management","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1080/09640560500508064","issn":"09640568","usgsCitation":"Poor, P., and Breece, M., 2006, The contingent behavior of charter fishing participants on the Chesapeake Bay: Welfare estimates associated with water quality improvements: Journal of Environmental Planning and Management, v. 49, no. 2, p. 265-278, https://doi.org/10.1080/09640560500508064.","startPage":"265","endPage":"278","numberOfPages":"14","costCenters":[],"links":[{"id":211745,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1080/09640560500508064"},{"id":239094,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"49","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505baa5be4b08c986b3227e9","contributors":{"authors":[{"text":"Poor, P.J.","contributorId":21348,"corporation":false,"usgs":true,"family":"Poor","given":"P.J.","email":"","affiliations":[],"preferred":false,"id":426752,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Breece, M.","contributorId":16652,"corporation":false,"usgs":true,"family":"Breece","given":"M.","email":"","affiliations":[],"preferred":false,"id":426751,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70171290,"text":"70171290 - 2006 - Coastal groundwater/surface-water interactions: a Great Lakes case study","interactions":[],"lastModifiedDate":"2016-05-26T11:09:42","indexId":"70171290","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":5,"text":"Book chapter"},"publicationSubtype":{"id":24,"text":"Book Chapter"},"chapter":"22","title":"Coastal groundwater/surface-water interactions: a Great Lakes case study","docAbstract":"

Key similarities exist between marine and Great Lakes coastal environments. Water and nutrient fluxes across lakebeds in the Great Lakes are influenced by seiche and wind set-up and set-down, analogous to tidal influence in marine settings. Groundwater/surface-water interactions also commonly involve a saline-fresh water interface, although in the Great-Lakes cases, it is groundwater that is commonly saline and surface water that is fresh. Evapotranspiration also affects nearshore hydrology in both settings. Interactions between groundwater and surface water have recently been identified as an important component of ecological processes in the Great Lakes. Water withdrawals and the reversal of the groundwater/surface water seepage gradient are also common to many coastal areas around the Great Lakes. As compared to surface water, regional groundwater that discharges to western Lake Erie from Michigan is highly mineralized. Studies conducted by the U.S. Geological Survey at Erie State Game Area in southeastern Michigan, describe groundwater flow dynamics and chemistry, shallow lake-water chemistry, and fish and invertebrate communities. Results presented here provide an overview of recent progress of ongoing interdisciplinary studies of Great Lakes nearshore systems and describe a conceptual model that identifies relations among geologic, hydrologic, chemical, and biological processes in the coastal habitats of Lake Erie. This conceptual model is based on analysis of hydraulic head in piezometers at the study site and chemical analysis of deep and shallow coastal groundwater.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Coastal hydrology and processes","largerWorkSubtype":{"id":12,"text":"Conference publication"},"language":"English","publisher":"Water Resources Publications","usgsCitation":"Neff, B., Haack, S.K., Rosenberry, D.O., Savino, J.F., and Lundstrom, S.C., 2006, Coastal groundwater/surface-water interactions: a Great Lakes case study, chap. 22 of Coastal hydrology and processes, p. 289-295.","productDescription":"8 p.","startPage":"289","endPage":"295","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"links":[{"id":321736,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":321735,"rank":1,"type":{"id":15,"text":"Index Page"},"url":"https://www.wrpllc.com/books/chp.html"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57481e2de4b07e28b664db8e","contributors":{"authors":[{"text":"Neff, Brian P.","contributorId":27548,"corporation":false,"usgs":true,"family":"Neff","given":"Brian P.","affiliations":[],"preferred":false,"id":630448,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Haack, Sheridan K. skhaack@usgs.gov","contributorId":1982,"corporation":false,"usgs":true,"family":"Haack","given":"Sheridan","email":"skhaack@usgs.gov","middleInitial":"K.","affiliations":[{"id":382,"text":"Michigan Water Science Center","active":true,"usgs":true}],"preferred":true,"id":630449,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Rosenberry, Donald O. 0000-0003-0681-5641 rosenber@usgs.gov","orcid":"https://orcid.org/0000-0003-0681-5641","contributorId":1312,"corporation":false,"usgs":true,"family":"Rosenberry","given":"Donald","email":"rosenber@usgs.gov","middleInitial":"O.","affiliations":[{"id":438,"text":"National Research Program - Western Branch","active":true,"usgs":true},{"id":5044,"text":"National Research Program - Central Branch","active":true,"usgs":true}],"preferred":true,"id":630450,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Savino, Jacqueline F. jsavino@usgs.gov","contributorId":2213,"corporation":false,"usgs":true,"family":"Savino","given":"Jacqueline","email":"jsavino@usgs.gov","middleInitial":"F.","affiliations":[{"id":324,"text":"Great Lakes Science Center","active":true,"usgs":true}],"preferred":true,"id":630451,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Lundstrom, Scott C. 0000-0003-4149-2219 sclundst@usgs.gov","orcid":"https://orcid.org/0000-0003-4149-2219","contributorId":2446,"corporation":false,"usgs":true,"family":"Lundstrom","given":"Scott","email":"sclundst@usgs.gov","middleInitial":"C.","affiliations":[{"id":318,"text":"Geosciences and Environmental Change Science Center","active":true,"usgs":true}],"preferred":true,"id":630452,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70175940,"text":"70175940 - 2006 - Post-Eocene igneous and tectonic effects of spreading center subduction under southeast Alaska: Far-field effects of early Tertiary ridge subduction in Alaska","interactions":[],"lastModifiedDate":"2016-08-22T12:04:44","indexId":"70175940","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":18,"text":"Abstract or summary"},"title":"Post-Eocene igneous and tectonic effects of spreading center subduction under southeast Alaska: Far-field effects of early Tertiary ridge subduction in Alaska","docAbstract":"

No abstract available. 

","largerWorkType":{"id":24,"text":"Conference Paper"},"largerWorkTitle":"Proceedings of Conference on BackBone of the Americas - Patagonia to Alaska","largerWorkSubtype":{"id":19,"text":"Conference Paper"},"conferenceTitle":"2006 Conference on BackBone of the Americas - Patagonia to Alaska ","language":"English","usgsCitation":"2006, Post-Eocene igneous and tectonic effects of spreading center subduction under southeast Alaska: Far-field effects of early Tertiary ridge subduction in Alaska, in Proceedings of Conference on BackBone of the Americas - Patagonia to Alaska, v. 2, no. 52.","costCenters":[{"id":114,"text":"Alaska Science Center","active":true,"usgs":true}],"links":[{"id":327261,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"2","issue":"52","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57bc22e4e4b03fd6b7de1841"} ,{"id":70033636,"text":"70033636 - 2006 - Hydrologic-hydraulic analysis of the Toa Vaca Dam","interactions":[],"lastModifiedDate":"2012-03-12T17:21:30","indexId":"70033636","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Hydrologic-hydraulic analysis of the Toa Vaca Dam","docAbstract":"[No abstract available]","largerWorkTitle":"Association of State Dam Safety Officials - Dam Safety 2006, Proceedings from the 2006 Annual Conference","conferenceTitle":"2006 Annual Conference on Dam Safety","conferenceDate":"10 September 2008 through 14 September 2008","conferenceLocation":"Boston, MA","language":"English","usgsCitation":"Heriberto, T., and MillerArthur, A., 2006, Hydrologic-hydraulic analysis of the Toa Vaca Dam, in Association of State Dam Safety Officials - Dam Safety 2006, Proceedings from the 2006 Annual Conference, Boston, MA, 10 September 2008 through 14 September 2008.","numberOfPages":"1","costCenters":[],"links":[{"id":242026,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a36a5e4b0c8380cd608a2","contributors":{"authors":[{"text":"Heriberto, T.-S.","contributorId":7097,"corporation":false,"usgs":true,"family":"Heriberto","given":"T.-S.","email":"","affiliations":[],"preferred":false,"id":441786,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"MillerArthur, A.C.","contributorId":98130,"corporation":false,"usgs":true,"family":"MillerArthur","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":441787,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70176688,"text":"70176688 - 2006 - Conceptual ecological model for management of breeding grassland birds in the Mid-Atlantic Region","interactions":[],"lastModifiedDate":"2016-09-28T11:15:02","indexId":"70176688","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":18,"text":"Report"},"publicationSubtype":{"id":1,"text":"Federal Government Series"},"seriesTitle":{"id":53,"text":"Natural Resource Report","active":false,"publicationSubtype":{"id":1}},"seriesNumber":"NPS/NER/NRR--2006/005","title":"Conceptual ecological model for management of breeding grassland birds in the Mid-Atlantic Region","docAbstract":"

The status of grassland birds has become an increasingly important conservation issue. These species exhibit the most consistent population declines of any group of North American birds during the past 40 years. Anecdotal evidence suggests these declines have been occurring for nearly a century (Peterjohn and Sauer 1999). While the widespread conversion of grasslands into other habitats contributed to these declining populations, other factors such as habitat fragmentation and mowing regimes are also implicated (Vickery et al. 1999a). This plight of grassland birds has heightened awareness of the need for concerted conservation actions to reverse these seriously declining population trends.

The National Park Service (NPS) is positioned to potentially contribute to grassland bird conservation in the Mid-Atlantic Region. The NPS maintains a number of historic sites and former battlefields that are managed for their cultural significance but also support wildlife populations. Many of these “cultural parks” maintain open landscapes to recreate land use patterns that existed at the times of the historical events. These open landscapes are primarily managed grasslands which could be maintained to benefit grassland birds.

In 2005, the NPS initiated a project exploring the potential of “cultural parks” to support significant breeding grassland bird communities. This project involved parks within three NPS Inventory and Monitoring Program (I&M) networks, Mid-Atlantic, National Capital, and Eastern Rivers and Mountains. Five parks were selected for the initial focus of this study, all of which maintain open landscapes for interpretation of historic events. Most parks were selected because they represent the most extensive grassland habitats within their networks, with the rationale that if these parks cannot support significant breeding grassland bird communities, then parks with smaller acreages cannot support these communities either. The five parks included in this study are: Antietam National Battlefield, Fort Necessity National Battlefield, Gettysburg National Battlefield, Manassas National Battlefield, and Monocacy National Battlefield.

This conceptual ecological model is one product of this project. The information presented below allows NPS Network Coordinators to understand the factors to consider when making decisions concerning grassland management within their networks. This model provides park Resource Managers with information on grassland ecology in the Mid-Atlantic Region, the ecological requirements of grassland birds likely to occur in their parks, and management issues that influence whether significant breeding populations can be expected to occupy grasslands created and maintained in the parks. The Resource Managers can then make informed decisions concerning their ability to create and maintain grassland habitats.

The emphasis of this conceptual model is restricted to management of breeding grassland birds. Additional species may occur in this region during migration and winter, while habitat requirements of all grassland birds during nonbreeding seasons will differ from those described for the breeding season.

","language":"English","publisher":"U.S. Department of the Interior, National Park Service","publisherLocation":"Philadelphia, PA","usgsCitation":"Peterjohn, B.G., 2006, Conceptual ecological model for management of breeding grassland birds in the Mid-Atlantic Region: Natural Resource Report NPS/NER/NRR--2006/005, vii, 43 p.","productDescription":"vii, 43 p.","numberOfPages":"56","costCenters":[{"id":531,"text":"Patuxent Wildlife Research Center","active":true,"usgs":true}],"links":[{"id":329063,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":329062,"rank":1,"type":{"id":11,"text":"Document"},"url":"https://irma.nps.gov/DataStore/DownloadFile/152719","linkFileType":{"id":1,"text":"pdf"}}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"57ed5314e4b090825011d517","contributors":{"authors":[{"text":"Peterjohn, Bruce G. bpeterjohn@usgs.gov","contributorId":4493,"corporation":false,"usgs":true,"family":"Peterjohn","given":"Bruce","email":"bpeterjohn@usgs.gov","middleInitial":"G.","affiliations":[],"preferred":true,"id":649845,"contributorType":{"id":1,"text":"Authors"},"rank":1}]}} ,{"id":70175038,"text":"70175038 - 2006 - Degradation of water quality by bird feces in and around managed wetlands","interactions":[],"lastModifiedDate":"2016-07-27T14:05:21","indexId":"70175038","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Degradation of water quality by bird feces in and around managed wetlands","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of the South Bay Science Symposium","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"South Bay Science Symposium","conferenceDate":"June 6, 2006","conferenceLocation":"San Jose, CA","language":"English","usgsCitation":"Shellenbarger, G., and Boehm, A., 2006, Degradation of water quality by bird feces in and around managed wetlands, in Proceedings of the South Bay Science Symposium, San Jose, CA, June 6, 2006, p. 19-19.","productDescription":"1 p.","startPage":"19","endPage":"19","onlineOnly":"N","additionalOnlineFiles":"N","costCenters":[{"id":552,"text":"San Francisco Bay-Delta","active":false,"usgs":true},{"id":5079,"text":"Pacific Regional Director's Office","active":true,"usgs":true}],"links":[{"id":325720,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5799db44e4b0589fa1c7e7df","contributors":{"authors":[{"text":"Shellenbarger, G.G.","contributorId":12678,"corporation":false,"usgs":true,"family":"Shellenbarger","given":"G.G.","affiliations":[],"preferred":false,"id":643684,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Boehm, A.B.","contributorId":87770,"corporation":false,"usgs":true,"family":"Boehm","given":"A.B.","email":"","affiliations":[],"preferred":false,"id":643685,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70197277,"text":"70197277 - 2006 - Reducing risk in exploration under cover","interactions":[],"lastModifiedDate":"2018-05-24T16:32:56","indexId":"70197277","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":24,"text":"Conference Paper"},"publicationSubtype":{"id":19,"text":"Conference Paper"},"title":"Reducing risk in exploration under cover","docAbstract":"

No abstract available.

","largerWorkType":{"id":4,"text":"Book"},"largerWorkTitle":"Proceedings of 9th International Symposium on Mineral Exploration (ISME IX): Toward new frontiers for resource exploration and sustainable development","largerWorkSubtype":{"id":12,"text":"Conference publication"},"conferenceTitle":"9th International Symposium on Mineral Exploration (ISME IX)","conferenceDate":"September 19-21, 2006","conferenceLocation":"Bandung, Indonesia","publisher":"Penerbit ITB","usgsCitation":"Singer, D.A., and Kouda, R., 2006, Reducing risk in exploration under cover, in Proceedings of 9th International Symposium on Mineral Exploration (ISME IX): Toward new frontiers for resource exploration and sustainable development, Bandung, Indonesia, September 19-21, 2006, p. 16-21.","productDescription":"6 p.","startPage":"16","endPage":"21","costCenters":[{"id":312,"text":"Geology, Minerals, Energy, and Geophysics Science Center","active":true,"usgs":true}],"links":[{"id":354488,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5b157a5be4b092d9651e1faf","contributors":{"authors":[{"text":"Singer, Donald A. dsinger@usgs.gov","contributorId":5601,"corporation":false,"usgs":true,"family":"Singer","given":"Donald","email":"dsinger@usgs.gov","middleInitial":"A.","affiliations":[],"preferred":true,"id":736517,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Kouda, Ryoichi","contributorId":198036,"corporation":false,"usgs":false,"family":"Kouda","given":"Ryoichi","email":"","affiliations":[],"preferred":false,"id":736518,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70030920,"text":"70030920 - 2006 - Timing of magmatism following initial convergence at a passive margin, southwestern U.S. Cordillera, and ages of lower crustal magma sources","interactions":[],"lastModifiedDate":"2012-03-12T17:21:04","indexId":"70030920","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2309,"text":"Journal of Geology","active":true,"publicationSubtype":{"id":10}},"title":"Timing of magmatism following initial convergence at a passive margin, southwestern U.S. Cordillera, and ages of lower crustal magma sources","docAbstract":"Initiation of the Cordilleran magmatic arc in the southwestern United States is marked by intrusion of granitic plutons, predominantly composed of alkali-calcic Fe- and Sr-enriched quartz monzodiorite and monzonite, that intruded Paleoproterozoic basement and its Paleozoic cratonal-miogeoclinal cover. Three intrusive suites, recognized on the basis of differences in high field strength element and large ion lithophile element abundances, contain texturally complex but chronologically distinctive zircons. These zircons record heterogeneous but geochemically discrete mafic crustal magma sources, discrete Permo-Triassic intrusion ages, and a prolonged postemplacement thermal history within the long-lived Cordilleran arc, leading to episodic loss of radiogenic Pb. Distinctive lower crustal magma sources reflect lateral heterogeneity within the composite lithosphere of the Proterozoic craton. Limited interaction between derived magmas and middle and upper crustal rocks probably reflects the relatively cool thermal structure of the nascent Cordilleran continental margin magmatic arc. ?? 2006 by The University of Chicago. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geology","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1086/499573","issn":"00221376","usgsCitation":"Barth, A.P., and Wooden, J.L., 2006, Timing of magmatism following initial convergence at a passive margin, southwestern U.S. Cordillera, and ages of lower crustal magma sources: Journal of Geology, v. 114, no. 2, p. 231-245, https://doi.org/10.1086/499573.","startPage":"231","endPage":"245","numberOfPages":"15","costCenters":[],"links":[{"id":211695,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1086/499573"},{"id":239035,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"114","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505bb3f2e4b08c986b3260a7","contributors":{"authors":[{"text":"Barth, A. P.","contributorId":16997,"corporation":false,"usgs":true,"family":"Barth","given":"A.","email":"","middleInitial":"P.","affiliations":[],"preferred":false,"id":429237,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Wooden, J. L.","contributorId":58678,"corporation":false,"usgs":true,"family":"Wooden","given":"J.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":429238,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70030987,"text":"70030987 - 2006 - Explosion source strong ground motions in the Mississippi embayment","interactions":[],"lastModifiedDate":"2020-04-28T15:20:52.91803","indexId":"70030987","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Explosion source strong ground motions in the Mississippi embayment","docAbstract":"Two strong-motion arrays were deployed for the October 2002 Embayment Seismic Excitation Experiment to study the spatial variation of strong ground motions in the deep, unconsolidated sediments of the Mississippi embayment because there are no comparable strong-motion data from natural earthquakes in the area. Each linear array consisted of eight three-component K2 accelerographs spaced 15 m apart situated 1.2 and 2.5 kin from 2268-kg and 1134-kg borehole explosion sources, respectively. The array data show distinct body-wave and surface-wave arrivals that propagate within the thick, unconsolidated sedimentary column, the high-velocity basement rocks, and small-scale structure near the surface. Time-domain coherence of body-wave and surface-wave arrivals is computed for acceleration, velocity, and displacement time windows. Coherence is high for relatively low-frequency verticalcomponent Rayleigh waves and high-frequency P waves propagating across the array. Prominent high-frequency PS conversions seen on radial components, a proxy for the direct S wave from earthquake sources, lose coherence quickly over the 105-m length of the array. Transverse component signals are least coherent for any ground motion and appear to be highly scattered. Horizontal phase velocity is computed by using the ratio of particle velocity to estimates of the strain based on a plane-wave-propagation model. The resulting time-dependent phase-velocity map is a useful way to infer the propagation mechanisms of individual seismic phases and time windows of three-component waveforms. Displacement gradient analysis is a complementary technique for processing general spatial-array data to obtain horizontal slowness information.","largerWorkTitle":"","language":"English","publisher":"Geological Society of America","doi":"10.1785/0120050105","issn":"00371106","usgsCitation":"Langston, C., Bodin, P., Powell, C., Withers, M., Horton, S., and Mooney, W.D., 2006, Explosion source strong ground motions in the Mississippi embayment: Bulletin of the Seismological Society of America, v. 96, no. 3, p. 1038-1054, https://doi.org/10.1785/0120050105.","productDescription":"17 p.","startPage":"1038","endPage":"1054","numberOfPages":"17","costCenters":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"links":[{"id":239038,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"country":"United States","state":"Arkansas, Missouri, Tennessee ","otherGeospatial":"Mississippi River embayment","geographicExtents":"{\n \"type\": \"FeatureCollection\",\n \"features\": [\n {\n \"type\": \"Feature\",\n \"properties\": {},\n \"geometry\": {\n \"type\": \"Polygon\",\n \"coordinates\": [\n [\n [\n -90.98876953125,\n 34.75966612466248\n ],\n [\n -88.74755859375,\n 34.75966612466248\n ],\n [\n -88.74755859375,\n 36.756490329505176\n ],\n [\n -90.98876953125,\n 36.756490329505176\n ],\n [\n -90.98876953125,\n 34.75966612466248\n ]\n ]\n ]\n }\n }\n ]\n}","volume":"96","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a0e29e4b0c8380cd53314","contributors":{"authors":[{"text":"Langston, C.A.","contributorId":84882,"corporation":false,"usgs":true,"family":"Langston","given":"C.A.","email":"","affiliations":[],"preferred":false,"id":429523,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Bodin, P.","contributorId":29554,"corporation":false,"usgs":true,"family":"Bodin","given":"P.","email":"","affiliations":[],"preferred":false,"id":429520,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Powell, C.","contributorId":56849,"corporation":false,"usgs":true,"family":"Powell","given":"C.","email":"","affiliations":[],"preferred":false,"id":429522,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Withers, M.","contributorId":27667,"corporation":false,"usgs":true,"family":"Withers","given":"M.","email":"","affiliations":[],"preferred":false,"id":429519,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Horton, S.","contributorId":20146,"corporation":false,"usgs":true,"family":"Horton","given":"S.","email":"","affiliations":[],"preferred":false,"id":429518,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Mooney, Walter D. 0000-0002-5310-3631 mooney@usgs.gov","orcid":"https://orcid.org/0000-0002-5310-3631","contributorId":3194,"corporation":false,"usgs":true,"family":"Mooney","given":"Walter","email":"mooney@usgs.gov","middleInitial":"D.","affiliations":[{"id":237,"text":"Earthquake Science Center","active":true,"usgs":true}],"preferred":true,"id":429521,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70028155,"text":"70028155 - 2006 - The Short Wave Aerostat-Mounted Imager (SWAMI): A novel platform for acquiring remotely sensed data from a tethered balloon","interactions":[],"lastModifiedDate":"2017-04-11T15:58:58","indexId":"70028155","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3254,"text":"Remote Sensing of Environment","printIssn":"0034-4257","active":true,"publicationSubtype":{"id":10}},"title":"The Short Wave Aerostat-Mounted Imager (SWAMI): A novel platform for acquiring remotely sensed data from a tethered balloon","docAbstract":"

We describe a new remote sensing system called the Short Wave Aerostat-Mounted Imager (SWAMI). The SWAMI is designed to acquire co-located video imagery and hyperspectral data to study basic remote sensing questions and to link landscape level trace gas fluxes with spatially and temporally appropriate spectral observations. The SWAMI can fly at altitudes up to 2 km above ground level to bridge the spatial gap between radiometric measurements collected near the surface and those acquired by other aircraft or satellites. The SWAMI platform consists of a dual channel hyperspectral spectroradiometer, video camera, GPS, thermal infrared sensor, and several meteorological and control sensors. All SWAMI functions (e.g. data acquisition and sensor pointing) can be controlled from the ground via wireless transmission. Sample data from the sampling platform are presented, along with several potential scientific applications of SWAMI data.

","language":"English","publisher":"Elsevier","doi":"10.1016/j.rse.2005.01.021","issn":"00344257","usgsCitation":"Vierling, L., Fersdahl, M., Chen, X., Li, Z., and Zimmerman, P., 2006, The Short Wave Aerostat-Mounted Imager (SWAMI): A novel platform for acquiring remotely sensed data from a tethered balloon: Remote Sensing of Environment, v. 103, no. 3, p. 255-264, https://doi.org/10.1016/j.rse.2005.01.021.","productDescription":"10 p.","startPage":"255","endPage":"264","numberOfPages":"10","costCenters":[{"id":222,"text":"Earth Resources Observation and Science (EROS) Center","active":true,"usgs":true}],"links":[{"id":237053,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":210203,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.rse.2005.01.021"}],"volume":"103","issue":"3","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505ba8ebe4b08c986b321f38","contributors":{"authors":[{"text":"Vierling, L.A.","contributorId":58113,"corporation":false,"usgs":true,"family":"Vierling","given":"L.A.","email":"","affiliations":[],"preferred":false,"id":416809,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Fersdahl, M.","contributorId":83401,"corporation":false,"usgs":true,"family":"Fersdahl","given":"M.","email":"","affiliations":[],"preferred":false,"id":416811,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Chen, X.","contributorId":76527,"corporation":false,"usgs":true,"family":"Chen","given":"X.","affiliations":[],"preferred":false,"id":416810,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Li, Z.","contributorId":29160,"corporation":false,"usgs":true,"family":"Li","given":"Z.","affiliations":[],"preferred":false,"id":416807,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Zimmerman, P.","contributorId":50418,"corporation":false,"usgs":true,"family":"Zimmerman","given":"P.","email":"","affiliations":[],"preferred":false,"id":416808,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70030343,"text":"70030343 - 2006 - Modelling river discharge and precipitation from estuarine salinity in the northern Chesapeake Bay: Application to Holocene palaeoclimate","interactions":[],"lastModifiedDate":"2012-03-12T17:21:03","indexId":"70030343","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1905,"text":"Holocene","active":true,"publicationSubtype":{"id":10}},"title":"Modelling river discharge and precipitation from estuarine salinity in the northern Chesapeake Bay: Application to Holocene palaeoclimate","docAbstract":"Long-term chronologies of precipitation can provide a baseline against which twentieth-century trends in rainfall can be evaluated in terms of natural variability and anthropogenic influence. However, there are relatively few methods to quantitatively reconstruct palaeoprecipitation and river discharge compared with proxies of other climatic factors, such as temperature. We developed autoregressive and least squares statistical models relating Chesapeake Bay salinity to river discharge and regional precipitation records. Salinity in northern and central parts of the modern Chesapeake Bay is influenced largely by seasonal, interannual and decadal variations in Susquehanna River discharge, which in turn are controlled by regional precipitation patterns. A power regressive discharge model and linear precipitation model exhibit well-defined decadal variations in peak discharge and precipitation. The utility of the models was tested by estimating Holocene palaeoprecipitation and Susquehanna River palaeodischarge, as indicated by isotopically derived palaeosalinity reconstructions from Chesapeake Bay sediment cores. Model results indicate that the early-mid Holocene (7055-5900 yr BP) was drier than the late Holocene (1500 yr BP - present), the 'Mediaeval Warm Period' (MWP) (1200-600 yr BP) was drier than the 'Little Ice Age' (LIA) (500-100 yr BP), and the twentieth century experienced extremes in precipitation possibly associated with changes in ocean-atmosphere teleconnections. ?? 2006 Edward Arnold (Publishers) Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Holocene","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1191/0959683606hl944rp","issn":"09596836","usgsCitation":"Saenger, C., Cronin, T., Thunell, R., and Vann, C., 2006, Modelling river discharge and precipitation from estuarine salinity in the northern Chesapeake Bay: Application to Holocene palaeoclimate: Holocene, v. 16, no. 4, p. 467-477, https://doi.org/10.1191/0959683606hl944rp.","startPage":"467","endPage":"477","numberOfPages":"11","costCenters":[],"links":[{"id":211802,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1191/0959683606hl944rp"},{"id":239165,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"16","issue":"4","noUsgsAuthors":false,"publicationDate":"2006-05-01","publicationStatus":"PW","scienceBaseUri":"505a5c73e4b0c8380cd6fce1","contributors":{"authors":[{"text":"Saenger, C.","contributorId":19363,"corporation":false,"usgs":true,"family":"Saenger","given":"C.","affiliations":[],"preferred":false,"id":426757,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Cronin, T.","contributorId":88061,"corporation":false,"usgs":true,"family":"Cronin","given":"T.","affiliations":[],"preferred":false,"id":426759,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Thunell, R.","contributorId":96836,"corporation":false,"usgs":true,"family":"Thunell","given":"R.","email":"","affiliations":[],"preferred":false,"id":426760,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Vann, C.","contributorId":64020,"corporation":false,"usgs":true,"family":"Vann","given":"C.","email":"","affiliations":[],"preferred":false,"id":426758,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70028979,"text":"70028979 - 2006 - Joint analysis of refractions with surface waves: An inverse solution to the refraction-traveltime problem","interactions":[],"lastModifiedDate":"2012-03-12T17:20:42","indexId":"70028979","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1808,"text":"Geophysics","active":true,"publicationSubtype":{"id":10}},"title":"Joint analysis of refractions with surface waves: An inverse solution to the refraction-traveltime problem","docAbstract":"We describe a possible solution to the inverse refraction-traveltime problem (IRTP) that reduces the range of possible solutions (nonuniqueness). This approach uses a reference model, derived from surface-wave shear-wave velocity estimates, as a constraint. The application of the joint analysis of refractions with surface waves (JARS) method provided a more realistic solution than the conventional refraction/tomography methods, which did not benefit from a reference model derived from real data. This confirmed our conclusion that the proposed method is an advancement in the IRTP analysis. The unique basic principles of the JARS method might be applicable to other inverse geophysical problems. ?? 2006 Society of Exploration Geophysicists.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Geophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1190/1.2360226","issn":"00168033","usgsCitation":"Ivanov, J., Miller, R., Xia, J., Steeples, D., and Park, C., 2006, Joint analysis of refractions with surface waves: An inverse solution to the refraction-traveltime problem: Geophysics, v. 71, no. 6, https://doi.org/10.1190/1.2360226.","costCenters":[],"links":[{"id":487579,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"http://hdl.handle.net/1808/17304","text":"External Repository"},{"id":209883,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1190/1.2360226"},{"id":236626,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"71","issue":"6","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505a3fffe4b0c8380cd649ae","contributors":{"authors":[{"text":"Ivanov, J.","contributorId":107068,"corporation":false,"usgs":true,"family":"Ivanov","given":"J.","email":"","affiliations":[],"preferred":false,"id":420825,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Miller, R. D.","contributorId":92693,"corporation":false,"usgs":true,"family":"Miller","given":"R. D.","affiliations":[],"preferred":false,"id":420824,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Xia, J.","contributorId":63513,"corporation":false,"usgs":true,"family":"Xia","given":"J.","email":"","affiliations":[],"preferred":false,"id":420823,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Steeples, D.","contributorId":30422,"corporation":false,"usgs":true,"family":"Steeples","given":"D.","email":"","affiliations":[],"preferred":false,"id":420822,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Park, C.B.","contributorId":21714,"corporation":false,"usgs":true,"family":"Park","given":"C.B.","email":"","affiliations":[],"preferred":false,"id":420821,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70028980,"text":"70028980 - 2006 - Linear adsorption of nonionic organic compounds from water onto hydrophilic minerals: Silica and alumina","interactions":[],"lastModifiedDate":"2018-10-29T10:32:47","indexId":"70028980","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1565,"text":"Environmental Science & Technology","onlineIssn":"1520-5851","printIssn":"0013-936X","active":true,"publicationSubtype":{"id":10}},"title":"Linear adsorption of nonionic organic compounds from water onto hydrophilic minerals: Silica and alumina","docAbstract":"

To characterize the linear adsorption phenomena in aqueous nonionic organic solute−mineral systems, the adsorption isotherms of some low-molecular-weight nonpolar nonionic solutes (1,2,3-trichlorobenzene, lindane, phenanthrene, and pyrene) and polar nonionic solutes (1,3-dinitrobenzene and 2,4-dinitrotoluene) from single- and binary-solute solutions on hydrophilic silica and alumina were established. Toward this objective, the influences of temperature, ionic strength, and pH on adsorption were also determined. It is found that linear adsorption exhibits low exothermic heats and practically no adsorptive competition. The solute−solid configuration and the adsorptive force consistent with these effects were hypothesized. For nonpolar solutes, the adsorption occurs presumably by London (dispersion) forces onto a water film above the mineral surface. For polar solutes, the adsorption is also assisted by polar-group interactions. The reduced adsorptive forces of solutes with hydrophilic minerals due to physical separation by the water film and the low fractions of the water-film surface covered by solutes offer a theoretical basis for linear solute adsorption, low exothermic heats, and no adsorptive competition. The postulated adsorptive forces are supported by observations that ionic strength or pH poses no effect on the adsorption of nonpolar solutes while it exhibits a significant effect on the uptake of polar solutes.


","language":"English","publisher":"ACS","doi":"10.1021/es0609809","issn":"0013936X","usgsCitation":"Su, Y., Zhu, Y., Sheng, G., and Chiou, C.T., 2006, Linear adsorption of nonionic organic compounds from water onto hydrophilic minerals: Silica and alumina: Environmental Science & Technology, v. 40, no. 22, p. 6949-6954, https://doi.org/10.1021/es0609809.","productDescription":"6 p.","startPage":"6949","endPage":"6954","costCenters":[{"id":589,"text":"Toxic Substances Hydrology Program","active":true,"usgs":true}],"links":[{"id":236627,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209884,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1021/es0609809"}],"volume":"40","issue":"22","noUsgsAuthors":false,"publicationDate":"2006-10-18","publicationStatus":"PW","scienceBaseUri":"505a47bae4b0c8380cd67947","contributors":{"authors":[{"text":"Su, Y.-H.","contributorId":57645,"corporation":false,"usgs":true,"family":"Su","given":"Y.-H.","email":"","affiliations":[],"preferred":false,"id":420827,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Zhu, Y.-G.","contributorId":9446,"corporation":false,"usgs":true,"family":"Zhu","given":"Y.-G.","email":"","affiliations":[],"preferred":false,"id":420826,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Sheng, G.","contributorId":70961,"corporation":false,"usgs":true,"family":"Sheng","given":"G.","email":"","affiliations":[],"preferred":false,"id":420828,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chiou, C. T.","contributorId":97080,"corporation":false,"usgs":true,"family":"Chiou","given":"C.","email":"","middleInitial":"T.","affiliations":[],"preferred":false,"id":420829,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70028981,"text":"70028981 - 2006 - The hydrology of northern peatlands as affected by biogenic gas: Current developments and research needs","interactions":[],"lastModifiedDate":"2012-03-12T17:20:43","indexId":"70028981","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1924,"text":"Hydrological Processes","active":true,"publicationSubtype":{"id":10}},"title":"The hydrology of northern peatlands as affected by biogenic gas: Current developments and research needs","docAbstract":"Recent research indicates that accumulation and release of biogenic gas from northern peatlands may substantially affect future climate. Sudden release of free-phase gas bubbles into the atmosphere may preclude the conversion of methane to carbon dioxide in the uppermost oxic layer of the peat, resulting in greater contribution of methane to the atmosphere than is currently estimated. The hydrology of these peatlands also affects and is affected by this process, especially when gas is released suddenly and episodically. Indirect hydrological evidence indicates that ebullitive gas releases are relatively frequent in some peatlands and time-averaged rates may be significantly greater than diffusive releases. Estimates of free-phase gas contained in peat have ranged from 0 to nearly 20% of the peat volume. Abrupt changes in the volume of gas may alter hydraulic gradients and movement of water and solutes in peat, which in turn could alter composition and fluxes of the gas. Peat surfaces also move vertically and horizontally in response to accumulation and release of free-phase gas. Future research should address the distribution, temporal variability, and relative significance of ebullition in peatlands and the consequent hydrological responses to these gas-emission events. Copyright ?? 2006 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Hydrological Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/hyp.6377","issn":"08856087","usgsCitation":"Rosenberry, D., Glaser, P., and Siegel, D.I., 2006, The hydrology of northern peatlands as affected by biogenic gas: Current developments and research needs: Hydrological Processes, v. 20, no. 17, p. 3601-3610, https://doi.org/10.1002/hyp.6377.","startPage":"3601","endPage":"3610","numberOfPages":"10","costCenters":[],"links":[{"id":236596,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":209859,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/hyp.6377"}],"volume":"20","issue":"17","noUsgsAuthors":false,"publicationDate":"2006-10-18","publicationStatus":"PW","scienceBaseUri":"505baccde4b08c986b323752","contributors":{"authors":[{"text":"Rosenberry, D.O. 0000-0003-0681-5641","orcid":"https://orcid.org/0000-0003-0681-5641","contributorId":38500,"corporation":false,"usgs":true,"family":"Rosenberry","given":"D.O.","affiliations":[],"preferred":true,"id":420831,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Glaser, P.H.","contributorId":13791,"corporation":false,"usgs":true,"family":"Glaser","given":"P.H.","email":"","affiliations":[],"preferred":false,"id":420830,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Siegel, D. I.","contributorId":77562,"corporation":false,"usgs":true,"family":"Siegel","given":"D.","email":"","middleInitial":"I.","affiliations":[],"preferred":false,"id":420832,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70031203,"text":"70031203 - 2006 - Observations in the Saturn system during approach and orbital insertion, with Cassini's visual and infrared mapping spectrometer (VIMS)","interactions":[],"lastModifiedDate":"2012-03-12T17:21:02","indexId":"70031203","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":915,"text":"Astronomy and Astrophysics","active":true,"publicationSubtype":{"id":10}},"title":"Observations in the Saturn system during approach and orbital insertion, with Cassini's visual and infrared mapping spectrometer (VIMS)","docAbstract":"The Visual and Infrared Mapping Spectrometer observed Phoebe, Iapetus, Titan and Saturn's rings during Cassini's approach and orbital insertion. Phoebe's surface contains water ice, CO2, and ferrous iron. lapetus contains CO2 and organic materials. Titan's atmosphere shows methane fluorescence, and night-side atmospheric emission that may be CO2 and CH3D. As determined from cloud motions, the winds at altitude 25-30 km in the south polar region of Titan appear to be moving in a prograde direction at velocity ???1 m s-1. Circular albedo features on Titan's surface, seen at 2.02 ??m, may be palimpsests remaining from the rheological adjustment of ancient impact craters. As such, their long-term persistence is of special interest in view of the expected precipitation of liquids and solids from the atmosphere. Saturn's rings have changed little in their radial structure since the Voyager flybys in the early 1980s. Spectral absorption bands tentatively attributed to Fe2+ suggest that iron-bearing silicates are a source of contamination of the C ring and the Cassini Division. ?? ESO 2006.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Astronomy and Astrophysics","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1051/0004-6361:20053054","issn":"00046361","usgsCitation":"Brown, R.H., Baines, K.H., Bellucci, G., Buratti, B.J., Capaccioni, F., Cerroni, P., Clark, R.N., Coradini, A., Cruikshank, D.P., Drossart, P., Formisano, V., Jaumann, R., Langevin, Y., Matson, D.L., McCord, T.B., Mennella, V., Nelson, R., Nicholson, P.D., Sicardy, B., Sotin, C., Baugh, N., Griffith, C., Hansen, G.B., Hibbitts, C.A., Momary, T., and Showalter, M., 2006, Observations in the Saturn system during approach and orbital insertion, with Cassini's visual and infrared mapping spectrometer (VIMS): Astronomy and Astrophysics, v. 446, no. 2, p. 707-716, https://doi.org/10.1051/0004-6361:20053054.","startPage":"707","endPage":"716","numberOfPages":"10","costCenters":[],"links":[{"id":477721,"rank":10000,"type":{"id":41,"text":"Open Access External Repository Page"},"url":"https://doi.org/10.1051/0004-6361:20053054","text":"External Repository"},{"id":211627,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1051/0004-6361:20053054"},{"id":238948,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"446","issue":"2","noUsgsAuthors":false,"publicationDate":"2006-01-13","publicationStatus":"PW","scienceBaseUri":"505a6a7de4b0c8380cd741c1","contributors":{"authors":[{"text":"Brown, R. 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A.","contributorId":21703,"corporation":false,"usgs":false,"family":"Hibbitts","given":"C.","email":"","middleInitial":"A.","affiliations":[],"preferred":false,"id":430496,"contributorType":{"id":1,"text":"Authors"},"rank":24},{"text":"Momary, T.W.","contributorId":40405,"corporation":false,"usgs":true,"family":"Momary","given":"T.W.","email":"","affiliations":[],"preferred":false,"id":430504,"contributorType":{"id":1,"text":"Authors"},"rank":25},{"text":"Showalter, M.R.","contributorId":24992,"corporation":false,"usgs":true,"family":"Showalter","given":"M.R.","email":"","affiliations":[],"preferred":false,"id":430498,"contributorType":{"id":1,"text":"Authors"},"rank":26}]}} ,{"id":70031198,"text":"70031198 - 2006 - Site response and attenuation in the Puget Lowland, Washington State","interactions":[],"lastModifiedDate":"2012-03-12T17:21:02","indexId":"70031198","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":1135,"text":"Bulletin of the Seismological Society of America","onlineIssn":"1943-3573","printIssn":"0037-1106","active":true,"publicationSubtype":{"id":10}},"title":"Site response and attenuation in the Puget Lowland, Washington State","docAbstract":"Simple spectral ratio (SSR) and horizontal-to-vertical (HN) site-response estimates at 47 sites in the Puget Lowland of Washington State document significant attenuation of 1.5- to 20-Hz shear waves within sedimentary basins there. Amplitudes of the horizontal components of shear-wave arrivals from three local earthquakes were used to compute SSRs with respect to the average of two bedrock sites and H/V spectral ratios with respect to the vertical component of the shear-wave arrivals at each site. SSR site-response curves at thick basin sites show peak amplifications of 2 to 6 at frequencies of 3 to 6 Hz, and decreasing spectra amplification with increasing frequency above 6 Hz. SSRs at nonbasin sites show a variety of shapes and larger resonance peaks. We attribute the spectral decay at frequencies above the amplification peak at basin sites to attenuation within the basin strata. Computing the frequency-independent, depth-dependent attenuation factor (Qs,int) from the SSR spectral decay between 2 and 20 Hz gives values of 5 to 40 for shallow sedimentary deposits and about 250 for the deepest sedimentary strata (7 km depth). H/V site responses show less spectral decay than the SSR responses but contain many of the same resonance peaks. We hypothesize that the H/V method yields a flatter response across the frequency spectrum than SSRs because the H/V reference signal (vertical component of the shear-wave arrivals) has undergone a degree of attenuation similar to the horizontal component recordings. Correcting the SSR site responses for attenuation within the basins by removing the spectral decay improves agreement between SSR and H/V estimates.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Bulletin of the Seismological Society of America","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1785/0120040200","issn":"00371106","usgsCitation":"Pratt, T.L., and Brocher, T., 2006, Site response and attenuation in the Puget Lowland, Washington State: Bulletin of the Seismological Society of America, v. 96, no. 2, p. 536-552, https://doi.org/10.1785/0120040200.","startPage":"536","endPage":"552","numberOfPages":"17","costCenters":[],"links":[{"id":238916,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211600,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1785/0120040200"}],"volume":"96","issue":"2","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"505b90f5e4b08c986b319702","contributors":{"authors":[{"text":"Pratt, T. L.","contributorId":53072,"corporation":false,"usgs":true,"family":"Pratt","given":"T.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":430476,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Brocher, T.M. 0000-0002-9740-839X","orcid":"https://orcid.org/0000-0002-9740-839X","contributorId":69994,"corporation":false,"usgs":true,"family":"Brocher","given":"T.M.","affiliations":[],"preferred":false,"id":430477,"contributorType":{"id":1,"text":"Authors"},"rank":2}]}} ,{"id":70031197,"text":"70031197 - 2006 - Arbuscular mycorrhizal fungi associated with Populus-Salix stands in a semiarid riparian ecosystem","interactions":[],"lastModifiedDate":"2012-03-12T17:21:16","indexId":"70031197","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2863,"text":"New Phytologist","active":true,"publicationSubtype":{"id":10}},"title":"Arbuscular mycorrhizal fungi associated with Populus-Salix stands in a semiarid riparian ecosystem","docAbstract":"??? This study examined the activity, species richness, and species composition of the arbuscular mycorrhizal fungal (AMF) community of Populus-Salix stands on the Verde River (Arizona, USA), quantified patterns of AMF richness and colonization along complex floodplain gradients, and identified environmental variables responsible for structuring the AMF community. ??? Samples from 61 Populus-Salix stands were analyzed for AMF and herbaceous composition, AMF colonization, gravimetric soil moisture, soil texture, per cent organic matter, pH, and concentrations of nitrate, bicarbonate phosphorus and exchangeable potassium. ??? AMF species richness declined with stand age and distance from and elevation above the channel and was positively related to perennial species cover and richness and gravimetric soil moisture. Distance from and elevation above the active channel, forest age, annual species cover, perennial species richness, and exchangeable potassium concentration all played a role in structuring the AMF community in this riparian area. ??? Most AMF species were found across a wide range of soil conditions, but a subset of species tended to occur more often in hydric areas. This group of riparian affiliate AMF species includes several not previously encountered in the surrounding Sonoran desert. ?? New Phytologist (2006).","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"New Phytologist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1111/j.1469-8137.2006.01668.x","issn":"0028646X","usgsCitation":"Beauchamp, V., Stromberg, J., and Stutz, J., 2006, Arbuscular mycorrhizal fungi associated with Populus-Salix stands in a semiarid riparian ecosystem: New Phytologist, v. 170, no. 2, p. 369-380, https://doi.org/10.1111/j.1469-8137.2006.01668.x.","startPage":"369","endPage":"380","numberOfPages":"12","costCenters":[],"links":[{"id":238915,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211599,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1111/j.1469-8137.2006.01668.x"}],"volume":"170","issue":"2","noUsgsAuthors":false,"publicationDate":"2006-02-16","publicationStatus":"PW","scienceBaseUri":"5059ed2be4b0c8380cd49681","contributors":{"authors":[{"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":430473,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Stromberg, J.C.","contributorId":81455,"corporation":false,"usgs":true,"family":"Stromberg","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":430474,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Stutz, J.C.","contributorId":105526,"corporation":false,"usgs":true,"family":"Stutz","given":"J.C.","email":"","affiliations":[],"preferred":false,"id":430475,"contributorType":{"id":1,"text":"Authors"},"rank":3}]}} ,{"id":70031178,"text":"70031178 - 2006 - Ge/Si and 87Sr/86Sr tracers of weathering reactions and hydrologic pathways in a tropical granitoid system","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70031178","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2302,"text":"Journal of Geochemical Exploration","active":true,"publicationSubtype":{"id":10}},"title":"Ge/Si and 87Sr/86Sr tracers of weathering reactions and hydrologic pathways in a tropical granitoid system","docAbstract":"Ge/Si and 87Sr/86Sr data from primary and secondary minerals, soil waters, and stream waters in a tropical granitoid catchment quantitatively reflect mineral alteration reactions that occur at different levels within the bedrock-saprolite-soil zone. Near the bedrock-saprolite interface, plagioclase to kaolinite reaction yields low Ge/Si and 87Sr/86Sr. Higher in the regolith column, biotite weathering and kaolinite dissolution drive Ge/Si and 87Sr/86Sr to high values. Data from streams at base flow sample the bedrock-saprolite interface zone, while at high discharge solutes are derived from upper saprolite-soil zone. Coupled Ge/Si and 87Sr/86Sr can be effective tools for quantifying the importance of specific weathering reactions, and for geochemical hydrograph separation. ?? 2005 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geochemical Exploration","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.gexplo.2005.08.054","issn":"03756742","usgsCitation":"Derry, L., Pett-Ridge, J.C., Kurtz, A., and Troester, J., 2006, Ge/Si and 87Sr/86Sr tracers of weathering reactions and hydrologic pathways in a tropical granitoid system: Journal of Geochemical Exploration, v. 88, no. 1-3 SPEC. ISS., p. 271-274, https://doi.org/10.1016/j.gexplo.2005.08.054.","startPage":"271","endPage":"274","numberOfPages":"4","costCenters":[],"links":[{"id":211463,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.gexplo.2005.08.054"},{"id":238756,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"88","issue":"1-3 SPEC. 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C.","contributorId":18574,"corporation":false,"usgs":true,"family":"Pett-Ridge","given":"J.","email":"","middleInitial":"C.","affiliations":[],"preferred":false,"id":430378,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Kurtz, A.C.","contributorId":89341,"corporation":false,"usgs":true,"family":"Kurtz","given":"A.C.","email":"","affiliations":[],"preferred":false,"id":430380,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Troester, J.W.","contributorId":90750,"corporation":false,"usgs":true,"family":"Troester","given":"J.W.","email":"","affiliations":[],"preferred":false,"id":430381,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031177,"text":"70031177 - 2006 - Detection probabilities and site occupancy estimates for amphibians at Okefenokee National Wildlife Refuge","interactions":[],"lastModifiedDate":"2012-03-12T17:21:17","indexId":"70031177","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":737,"text":"American Midland Naturalist","active":true,"publicationSubtype":{"id":10}},"title":"Detection probabilities and site occupancy estimates for amphibians at Okefenokee National Wildlife Refuge","docAbstract":"We conducted an amphibian inventory at Okefenokee National Wildlife Refuge from August 2000 to June 2002 as part of the U.S. Department of the Interior's national Amphibian Research and Monitoring Initiative. Nineteen species of amphibians (15 anurans and 4 caudates) were documented within the Refuge, including one protected species, the Gopher Frog Rana capito. We also collected 1 y of monitoring data for amphibian populations and incorporated the results into the inventory. Detection probabilities and site occupancy estimates for four species, the Pinewoods Treefrog (Hyla femoralis), Pig Frog (Rana grylio), Southern Leopard Frog (R. sphenocephala) and Carpenter Frog (R. virgatipes) are presented here. Detection probabilities observed in this study indicate that spring and summer surveys offer the best opportunity to detect these species in the Refuge. Results of the inventory suggest that substantial changes may have occurred in the amphibian fauna within and adjacent to the swamp. However, monitoring the amphibian community of Okefenokee Swamp will prove difficult because of the logistical challenges associated with a rigorous statistical assessment of status and trends.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"American Midland Naturalist","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1674/0003-0031(2006)155[0149:DPASOE]2.0.CO;2","issn":"00030031","usgsCitation":"Smith, L.L., Barichivich, W., Staiger, J., Smith, K.G., and Dodd, C., 2006, Detection probabilities and site occupancy estimates for amphibians at Okefenokee National Wildlife Refuge: American Midland Naturalist, v. 155, no. 1, p. 149-161, https://doi.org/10.1674/0003-0031(2006)155[0149:DPASOE]2.0.CO;2.","startPage":"149","endPage":"161","numberOfPages":"13","costCenters":[],"links":[{"id":211462,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1674/0003-0031(2006)155[0149:DPASOE]2.0.CO;2"},{"id":238755,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"155","issue":"1","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ff7be4b0c8380cd4f201","contributors":{"authors":[{"text":"Smith, L. L.","contributorId":6791,"corporation":false,"usgs":true,"family":"Smith","given":"L.","email":"","middleInitial":"L.","affiliations":[],"preferred":false,"id":430373,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Barichivich, W.J. 0000-0003-1103-6861","orcid":"https://orcid.org/0000-0003-1103-6861","contributorId":91435,"corporation":false,"usgs":true,"family":"Barichivich","given":"W.J.","affiliations":[],"preferred":false,"id":430377,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Staiger, J.S.","contributorId":45664,"corporation":false,"usgs":true,"family":"Staiger","given":"J.S.","email":"","affiliations":[],"preferred":false,"id":430374,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Smith, Kimberly G.","contributorId":47720,"corporation":false,"usgs":true,"family":"Smith","given":"Kimberly","email":"","middleInitial":"G.","affiliations":[],"preferred":false,"id":430375,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Dodd, C.K. Jr.","contributorId":86286,"corporation":false,"usgs":true,"family":"Dodd","given":"C.K.","suffix":"Jr.","affiliations":[],"preferred":false,"id":430376,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031175,"text":"70031175 - 2006 - Physical properties of the Mars Exploration Rover landing sites as inferred from Mini-TES-derived thermal inertia","interactions":[],"lastModifiedDate":"2018-11-28T09:48:18","indexId":"70031175","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2317,"text":"Journal of Geophysical Research E: Planets","active":true,"publicationSubtype":{"id":10}},"title":"Physical properties of the Mars Exploration Rover landing sites as inferred from Mini-TES-derived thermal inertia","docAbstract":"

The Miniature Thermal Emission Spectrometer (Mini‐TES) on board the two Mars Exploration Rovers provides the first opportunity to observe thermal properties from the Martian surface, relate these properties to orbital data, and perform soil conductivity experiments under Martian conditions. The thermal inertias of soils, bedforms, and rock at each landing site were derived to quantify the physical properties of these features and understand geologic processes occurring at these localities. The thermal inertia for the Gusev plains rock target Bonneville Beacon (∼1200 J m−2 K−1 s−1/2) is consistent with a dense, basaltic rock, but the rocks at the Columbia Hills have a lower thermal inertia (∼620 J m−2 K−1s−1/2), suggesting that they have a volcaniclasic origin. Bedforms on the floors of craters at both landing sites have thermal inertias of 200 J m−2 K−1 s−1/2, consistent with a particle diameter of ∼160 μm. This diameter is comparable to the most easily moved grain size in the current atmosphere on Mars, suggesting that these bedforms may have formed under current atmospheric conditions. Along the Meridiani plains, the thermal inertia is lower than that derived from TES and Thermal Emission Imaging System (THEMIS) orbital data. This discrepancy is not well understood. Mini‐TES–derived thermal inertias at Gusev along a ∼2.5 km traverse follow trends in thermal inertia measured from orbit with TES and THEMIS. However, along the traverse, there are variability and mixing of particle sizes that are not resolved in the orbital thermal inertia data due to meter‐scale processes that are not identifiable at larger scales.

","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Journal of Geophysical Research E: Planets","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","publisher":"American Geophysical Union","publisherLocation":"Washington, D.C.","doi":"10.1029/2005JE002583","issn":"01480227","usgsCitation":"Fergason, R., Christensen, P.R., Bell, J., Golombek, M., Herkenhoff, K.E., and Kieffer, H.H., 2006, Physical properties of the Mars Exploration Rover landing sites as inferred from Mini-TES-derived thermal inertia: Journal of Geophysical Research E: Planets, v. 111, no. E2, 18 p., https://doi.org/10.1029/2005JE002583.","productDescription":"18 p.","costCenters":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"links":[{"id":477457,"rank":1,"type":{"id":40,"text":"Open Access Publisher Index Page"},"url":"https://doi.org/10.1029/2005je002583","text":"Publisher Index Page"},{"id":238786,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"otherGeospatial":"Mars","volume":"111","issue":"E2","noUsgsAuthors":false,"publicationDate":"2006-02-11","publicationStatus":"PW","scienceBaseUri":"505a7ac2e4b0c8380cd7909b","contributors":{"authors":[{"text":"Fergason, R.L.","contributorId":13786,"corporation":false,"usgs":true,"family":"Fergason","given":"R.L.","email":"","affiliations":[],"preferred":false,"id":430365,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Christensen, P. R.","contributorId":7819,"corporation":false,"usgs":false,"family":"Christensen","given":"P.","email":"","middleInitial":"R.","affiliations":[],"preferred":false,"id":430364,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Bell, J.F. III","contributorId":97612,"corporation":false,"usgs":true,"family":"Bell","given":"J.F.","suffix":"III","email":"","affiliations":[],"preferred":false,"id":430369,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Golombek, M.P.","contributorId":52696,"corporation":false,"usgs":true,"family":"Golombek","given":"M.P.","email":"","affiliations":[],"preferred":false,"id":430367,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Herkenhoff, Kenneth E. 0000-0002-3153-6663 kherkenhoff@usgs.gov","orcid":"https://orcid.org/0000-0002-3153-6663","contributorId":2275,"corporation":false,"usgs":true,"family":"Herkenhoff","given":"Kenneth","email":"kherkenhoff@usgs.gov","middleInitial":"E.","affiliations":[{"id":131,"text":"Astrogeology Science Center","active":true,"usgs":true}],"preferred":true,"id":430368,"contributorType":{"id":1,"text":"Authors"},"rank":5},{"text":"Kieffer, H. H.","contributorId":40725,"corporation":false,"usgs":false,"family":"Kieffer","given":"H.","email":"","middleInitial":"H.","affiliations":[],"preferred":false,"id":430366,"contributorType":{"id":1,"text":"Authors"},"rank":6}]}} ,{"id":70031167,"text":"70031167 - 2006 - An improved model for the calculation of CO2 solubility in aqueous solutions containing Na+, K+, Ca2+, Mg2+, Cl-, and SO42-","interactions":[],"lastModifiedDate":"2012-03-12T17:21:18","indexId":"70031167","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":2662,"text":"Marine Chemistry","active":true,"publicationSubtype":{"id":10}},"title":"An improved model for the calculation of CO2 solubility in aqueous solutions containing Na+, K+, Ca2+, Mg2+, Cl-, and SO42-","docAbstract":"An improved model is presented for the calculation of the solubility of carbon dioxide in aqueous solutions containing Na+, K+, Ca2+, Mg2+, Cl-, and SO42- in a wide temperature-pressure-ionic strength range (from 273 to 533 K, from 0 to 2000 bar, and from 0 to 4.5 molality of salts) with experimental accuracy. The improvements over the previous model [Duan, Z. and Sun, R., 2003. An improved model calculating CO2 solubility in pure water and aqueous NaCl solutions from 273 to 533K and from 0 to 2000 bar. Chemical Geology, 193: 257-271] include: (1) By developing a non-iterative equation to replace the original equation of state in the calculation of CO 2 fugacity coefficients, the new model is at least twenty times computationally faster and can be easily adapted to numerical reaction-flow simulator for such applications as CO2 sequestration and (2) By fitting to the new solubility data, the new model improved the accuracy below 288 K from 6% to about 3% of uncertainty but still retains the high accuracy of the original model above 288 K. We comprehensively evaluate all experimental CO2 solubility data. Compared with these data, this model not only reproduces all the reliable data used for the parameterization but also predicts the data that were not used in the parameterization. In order to facilitate the application to CO2 sequestration, we also predicted CO2 solubility in seawater at two-phase coexistence (vapor-liquid or liquid-liquid) and at three-phase coexistence (CO2 hydrate-liquid water-vapor CO2 [or liquid CO2]). The improved model is programmed and can be downloaded from the website http://www.geochem-model.org/programs.htm. ?? 2005 Elsevier B.V. All rights reserved.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Marine Chemistry","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1016/j.marchem.2005.09.001","issn":"03044203","usgsCitation":"Duan, Z., Sun, R., Zhu, C., and Chou, I., 2006, An improved model for the calculation of CO2 solubility in aqueous solutions containing Na+, K+, Ca2+, Mg2+, Cl-, and SO42-: Marine Chemistry, v. 98, no. 2-4, p. 131-139, https://doi.org/10.1016/j.marchem.2005.09.001.","startPage":"131","endPage":"139","numberOfPages":"9","costCenters":[],"links":[{"id":211407,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1016/j.marchem.2005.09.001"},{"id":238690,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"98","issue":"2-4","noUsgsAuthors":false,"publicationStatus":"PW","scienceBaseUri":"5059ea72e4b0c8380cd4887b","contributors":{"authors":[{"text":"Duan, Zhenhao","contributorId":71302,"corporation":false,"usgs":true,"family":"Duan","given":"Zhenhao","email":"","affiliations":[],"preferred":false,"id":430339,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Sun, R.","contributorId":10137,"corporation":false,"usgs":true,"family":"Sun","given":"R.","affiliations":[],"preferred":false,"id":430337,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Zhu, Chen","contributorId":6244,"corporation":false,"usgs":true,"family":"Zhu","given":"Chen","email":"","affiliations":[],"preferred":false,"id":430336,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Chou, I.-M. 0000-0001-5233-6479","orcid":"https://orcid.org/0000-0001-5233-6479","contributorId":44283,"corporation":false,"usgs":true,"family":"Chou","given":"I.-M.","affiliations":[{"id":245,"text":"Eastern Mineral and Environmental Resources Science Center","active":true,"usgs":true}],"preferred":false,"id":430338,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ,{"id":70031151,"text":"70031151 - 2006 - Geochemistry and source waters of rock glacier outflow, Colorado Front Range","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70031151","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3032,"text":"Permafrost and Periglacial Processes","active":true,"publicationSubtype":{"id":10}},"title":"Geochemistry and source waters of rock glacier outflow, Colorado Front Range","docAbstract":"We characterize the seasonal variation in the geochemical and isotopic content of the outflow of the Green Lake 5 rock glacier (RG5), located in the Green Lakes Valley of the Colorado Front Range, USA. Between June and August, the geochemical content of rock glacier outflow does not appear to differ substantially from that of other surface waters in the Green Lakes Valley. Thus, for this alpine ecosystem at this time of year there does not appear to be large differences in water quality among rock glacier outflow, glacier and blockslope discharge, and discharge from small alpine catchments. However, in September concentrations of Mg2+ in the outflow of the rock glacier increased to more than 900 ??eq L-1 compared to values of less than 40 ??eq L-1 at all the other sites, concentrations of Ca2+ were greater than 4,000 ??eq L-1 compared to maximum values of less than 200 ??eq L-1 at all other sites, and concentrations of SO42- reached 7,000 ??eq L-1, compared to maximum concentrations below 120 ??eq L-1 at the other sites. Inverse geochemical modelling suggests that dissolution of pyrite, epidote, chlorite and minor calcite as well as the precipitation of silica and goethite best explain these elevated concentrations of solutes in the outflow of the rock glacier. Three component hydrograph separation using end-member mixing analysis shows that melted snow comprised an average of 30% of RG5 outflow, soil water 32%, and base flow 38%. Snow was the dominant source water in June, soil water was the dominant water source in July, and base flow was the dominant source in September. Enrichment of ?? 18O from - 10??? in the outflow of the rock glacier compared to -20??? in snow and enrichment of deuterium excess from +17.5??? in rock glacier outflow compared to +11??? in snow, suggests that melt of internal ice that had undergone multiple melt/freeze episodes was the dominant source of base flow. Copyright ?? 2005 John Wiley & Sons, Ltd.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Permafrost and Periglacial Processes","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1002/ppp.535","issn":"10456740","usgsCitation":"Williams, M., Knauf, M., Caine, N., Liu, F., and Verplanck, P., 2006, Geochemistry and source waters of rock glacier outflow, Colorado Front Range: Permafrost and Periglacial Processes, v. 17, no. 1, p. 13-33, https://doi.org/10.1002/ppp.535.","startPage":"13","endPage":"33","numberOfPages":"21","costCenters":[],"links":[{"id":238980,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"},{"id":211652,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1002/ppp.535"}],"volume":"17","issue":"1","noUsgsAuthors":false,"publicationDate":"2005-12-30","publicationStatus":"PW","scienceBaseUri":"505a16e0e4b0c8380cd552c9","contributors":{"authors":[{"text":"Williams, M.W.","contributorId":15565,"corporation":false,"usgs":true,"family":"Williams","given":"M.W.","email":"","affiliations":[],"preferred":false,"id":430268,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Knauf, M.","contributorId":77360,"corporation":false,"usgs":true,"family":"Knauf","given":"M.","email":"","affiliations":[],"preferred":false,"id":430270,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Caine, N.","contributorId":34881,"corporation":false,"usgs":true,"family":"Caine","given":"N.","email":"","affiliations":[],"preferred":false,"id":430269,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Liu, F.","contributorId":14150,"corporation":false,"usgs":true,"family":"Liu","given":"F.","email":"","affiliations":[],"preferred":false,"id":430267,"contributorType":{"id":1,"text":"Authors"},"rank":4},{"text":"Verplanck, P. L. 0000-0002-3653-6419","orcid":"https://orcid.org/0000-0002-3653-6419","contributorId":106565,"corporation":false,"usgs":true,"family":"Verplanck","given":"P. L.","affiliations":[],"preferred":false,"id":430271,"contributorType":{"id":1,"text":"Authors"},"rank":5}]}} ,{"id":70031150,"text":"70031150 - 2006 - Capture-related stressors impair immune system function in sablefish","interactions":[],"lastModifiedDate":"2012-03-12T17:21:01","indexId":"70031150","displayToPublicDate":"2006-01-01T00:00:00","publicationYear":"2006","noYear":false,"publicationType":{"id":2,"text":"Article"},"publicationSubtype":{"id":10,"text":"Journal Article"},"seriesTitle":{"id":3624,"text":"Transactions of the American Fisheries Society","active":true,"publicationSubtype":{"id":10}},"title":"Capture-related stressors impair immune system function in sablefish","docAbstract":"The sablefish Anoplopoma fimbria is a valuable North Pacific Ocean species that, when not targeted in various commercial fisheries, is often a part of discarded bycatch. Predictions of the survival of discarded fish are dependent on understanding how a fish responds to stressful conditions. Our objective was to describe the immunological health of sablefish exposed to capture stressors. In laboratory experiments designed to simulate the capture process, we subjected sablefish to various stressors that might influence survival: towing in a net, hooking, elevated seawater and air temperatures, and air exposure time. After stress was imposed, the in vitro mitogen-stimulated proliferation of sablefish leukocytes was used to evaluate the function of the immune system in an assay we validated for this species. The results demonstrated that regardless of fishing gear type, exposure to elevated seawater temperature, or time in air, the leukocytes from stressed sablefish exhibited significantly diminished proliferative responses to the T-cell mitogen, concanavalin A, or the B-cell mitogen, lipopolysaccharide. There was no difference in the immunological responses associated with seawater or air temperature. The duration and severity of the capture stressors applied in our study were harsh enough to induce significantly elevated levels of plasma cortisol and glucose, but there was no difference in the magnitude of levels among stressor treatments. These data suggest that immunological suppression occurs in sablefish subjected to capture-related stressors. The functional impairment of the immune system after capture presents a potential reason why delayed mortality is possible in discarded sablefish. Further studies are needed to determine whether delayed mortality in discarded sablefish can be caused by increased susceptibility to infectious agents resulting from stressor-mediated immunosuppression.","largerWorkType":{"id":2,"text":"Article"},"largerWorkTitle":"Transactions of the American Fisheries Society","largerWorkSubtype":{"id":10,"text":"Journal Article"},"language":"English","doi":"10.1577/T04-198.1","issn":"00028487","usgsCitation":"Lupes, S., Davis, M., Olla, B., and Schreck, C., 2006, Capture-related stressors impair immune system function in sablefish: Transactions of the American Fisheries Society, v. 135, no. 1, p. 129-138, https://doi.org/10.1577/T04-198.1.","startPage":"129","endPage":"138","numberOfPages":"10","costCenters":[],"links":[{"id":211651,"rank":9999,"type":{"id":10,"text":"Digital Object Identifier"},"url":"https://dx.doi.org/10.1577/T04-198.1"},{"id":238979,"rank":0,"type":{"id":24,"text":"Thumbnail"},"url":"https://pubs.usgs.gov/thumbnails/outside_thumb.jpg"}],"volume":"135","issue":"1","noUsgsAuthors":false,"publicationDate":"2011-01-09","publicationStatus":"PW","scienceBaseUri":"5059f355e4b0c8380cd4b725","contributors":{"authors":[{"text":"Lupes, S.C.","contributorId":84975,"corporation":false,"usgs":true,"family":"Lupes","given":"S.C.","email":"","affiliations":[],"preferred":false,"id":430266,"contributorType":{"id":1,"text":"Authors"},"rank":1},{"text":"Davis, M.W.","contributorId":51083,"corporation":false,"usgs":true,"family":"Davis","given":"M.W.","email":"","affiliations":[],"preferred":false,"id":430265,"contributorType":{"id":1,"text":"Authors"},"rank":2},{"text":"Olla, B.L.","contributorId":10602,"corporation":false,"usgs":true,"family":"Olla","given":"B.L.","affiliations":[],"preferred":false,"id":430263,"contributorType":{"id":1,"text":"Authors"},"rank":3},{"text":"Schreck, C.B.","contributorId":11977,"corporation":false,"usgs":true,"family":"Schreck","given":"C.B.","email":"","affiliations":[],"preferred":false,"id":430264,"contributorType":{"id":1,"text":"Authors"},"rank":4}]}} ]}