NRP Bibliography, 2006

Bergfeld, D., Evans, W.C., Howle, J.F., and Farrar C.D., 2006, Carbon dioxide emissions from vegetation-kill zones around the resurgent dome of Long Valley caldera, eastern California, USA: Journal of Volcanology and Geothermal Research, v. 152, p. 140-156. (on-line abstract of journal article)

Blainey, J.B., Faunt, C.C., and Hill, M.C., 2006, A guide for using the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California: U.S. Geological Survey Open-File Report 2006-1104, 36 p. (on-line report in pdf format, 1.3 MB)

Böhlke, J. K., 2006, Tracermodel1- Excel workbook for calculation and presentation of environmental tracer data for simple groundwater mixtures: Use of chlorofluorocarbons in hydrology - a guidebook, Section III.10.3, Vienna, International Atomic Energy Agency STI/PUB/1238, p. 239-243. (on-line article)

Böhlke, J.K., Smith, R.L., and Miller, D.N., 2006, Ammonium transport and reaction in contaminated groundwater - Application of isotope tracers and isotope fractionation studies: Water Resources Research, v. 42, W05411, doi:10.1029/2005WR004349. (on-line abstract or on-line journal article in pdf format, 1852 kb, published 2006 by American Geophysical Union, not subject to U.S. copyright)

Borken, W., Davidson, E.A., Savage, K., Sundquist, E.T., and Steudler, P., 2006, Effect of summer throughfall exclusion, summer drought, and winter snow cover on methane fluxes in a temperate forest soil: Soil Biology and Biochemistry, v. 38, no. 6, p. 1388-1395. (on-line abstract of journal article)

Bowers, J. E., 2006, Branch length mediates flower production and inflorescence architecture of Fouquieria splendens (ocotillo): Plant Ecology, v. 186, no.1, p. 87-95. (on-line abstract of journal article)

Bowers, J.E., Bean, T.M., and Turner, R.M., 2006, Two decades of change in distribution of exotic plants at the Desert Laboratory, Tucson, Arizona: Madroño v. 53, p. 252-263. (on-line abstract of journal article)

Brocher, T.M., Carr, M.D., Halsing, D.L., John, D.A., Langenheim, V.E., Mangan, M.T., Marvin-DiPasquale, M.C., Takekawa, J.Y., and Tiedeman, C.R., 2006, USGS science in Menlo Park; a science strategy for the U. S. Geological Survey Menlo Park Science Center, 2005-2015: U.S. Geological Survey Circular 1290, 42 p. (on-line abstract or on-line report in pdf format, 4.5 MB)

Busenberg, E., and Plummer, L.N., 2006, Potential use of other atmospheric gases: Use of Chlorofluorocarbons in Hydrology: Use of Chlorofluorocarbons in Hydrology - A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 10, p. 183-190. (on-line book chapter)

Busenberg, E., Plummer, L.N., Cook, P.G., Solomon, D.K., Han, L.F. Gröning, M., and Oster, H., 2006, Sampling and analytical methods: A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 12, p. 199-220. (on-line book chapter)

Cain, D.J., Buchwalter, D.B., and Luoma, S.N., 2006, Influence of metal exposure history on the bioaccumulation and subcellular distribution of aqueous cadmium in the insect Hydropsyche californica: Environmental Toxicology and Chemistry, v. 25, p. 1,042-1,049. (on-line abstract of journal article)

Cain, D.J., Parchaso, F., Thompson, J.K., Luoma, S.N., Lorenzi, A.H., Moon, E., Shouse, M.K., Hornberger, M.I., Dyke, J.L., and Cervantes, R., 2006, Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in South San Francisco Bay, California -- 2005: U.S. Geological Survey Open-File Report 2006-1152, 120 p. (on-line abstract or on-line report in pdf format, 1.5MB)

Cayan, D.C,  Bromirski, P., Hayhoe, K., Tyree, M., Dettinger, M., and Flick, R., 2006: Projecting Future Sea Level: Climate Action Team Reports to the Governor and Legislature, publication # CEC-500-2005-202-SF, 53 p. (on-line report in pdf format, 1.59 MB)

Cayan, D.C,  Maurer, E., Dettinger, M., Tyree, M., Hayhoe, K. Bonfils, C., Duffy, P., and Santer, B., 2006: Climate Scenarios for California: Climate Action Team Reports to the Governor and Legislature, publication # CEC-500-2005-203-SF, 44 p. (on-line report in pdf format, 2.8 MB)

Christensen, S., and Cooley, R.L., 2006, User guide to the UNC process and three utility programs for computation of nonlinear confidence and prediction intervals using MODFLOW-2000: U.S. Geological Survey Techniques and Methods, Book 6, Chapter A10, 195 p. (on-line abstract or on-line report)

Christenson, S., Parkhurst, D., Hunt, A,G., Athay, D., 2006, Age-dating ground water beneath Tinker Air Force Base, Midwest City, Oklahoma, 2003-04 : U.S. Geological Survey Fact Sheet 2005-3099, 4p. (on-line fact sheet)

Christidis, G.E., Blum, A.E., and Eberl D.D., 2006, Influence of layer charge and charge distribution of smectites on the flow behaviour and swelling of bentonites: Applied Clay Science, v. 34, no. 1-4, p. 125-138. (on-line abstract of journal article)

Chrosniak, L.D., Smith, L.N., McDonald, C.G., Jones, B.F., and Flinn, J.M., 2006, Effects of enhanced zinc and copper in drinking water on spatial memory and fear conditioning: Journal of Geochemical Exploration, v. 88, p. 91-94. (on-line abstract of journal article)

CIRMOUNT Executive Committee, 2006, Mapping new terrain -- Report of the Consortium for Integrated Mountain Climate Research in Western Mountains (CIRMOUNT): U.S. Forest Service Pacific Southwest Research Station (Albany, CA) Miscellaneous Publication PSW-MISC-77, 29 p. (on-line report in pdf format)

Clark, B.C., Landon, M.K., Kauffman, L.J., and, Hornberger, G.Z., 2006, Simulation of solute movement through wellbores to characterize public supply well contaminant vulnerability in the High Plains aquifer, York, Nebraska, in Poeter, E., Hill, M.C. Zheng, C., eds., MODFLOW and More 2006, Managing Ground-Water Systems: Proceedings v. 2, International Ground Water Modeling Center, Colorado School of Mines, Golden, CO, p. 649-653.

Clark, M.P., Slater, A.G., Barrett, A.P., Hay, L.E., McCabe, G.J., Rajagopalan, B., and Leavesley, G.H., 2006, Assimilation of snow covered area information into hydrologic and land-surface models: Advances in Water Resouces, v. 29, p. 1209-1221. (on-line abstract of journal article)

Cloern, J.E., Jassby, A.D., Schraga, T.S., and Dallas, K.L., 2006, What is causing the phytoplankton increase in San Francisco Bay?: The Pulse of the Estuary: Monitoring and Managing Water Quality in the San Francisco Estuary, Oakland, San Francisco Estuary Institute, p. 62-70. (on-line article in pdf format)

Cloern, J.E., and Krantz, T., 2006, Eutrophication, in Duffy, J.E., ed., Encyclopedia of Earth: Washington, D.C., Environmental Information Coalition, National Council for Science and the Environment. (on-line article, text is available under the terms of the Creative Commons Attribution-Share Alike license.)

Cohen, D., Person, M.A., Daanen, R., Locke, S, Dahlstrom, D., Zabielski, V., Winter, T.C., Rosenberry, D.O., Wright, H.E., Jr., Ito, E., Nieber, J.L., Gutowski, W.J., Jr., 2006, Groundwater supported evapotranspiration within glaciated watersheds under conditions of climate change: Journal of Hydrology, v. 320, p. 484-500. (on-line abstract of journal article)

Cook, P.G., Plummer, L.N., Solomon, D.K., Busenberg, E., and Han, L.F., 2006, Effects and processes that can modify apparent CFC age: Use of Chlorofluorocarbons in Hydrology: A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 4, p. 31-58. (on-line book chapter, 7.14 MB)

Cooper, D.J., Sanderson, J.S., Stannard, D.I., and Groeneveld, D.P., 2006 , Effects of long-term water table drawdown on evapotranspiration and vegetation in an arid region phreatophyte community: Journal Hydrology, v. 325, p. 21-34. (on-line abstract of journal article)

Conn, K.E., Barber, L.B., Brown, G.K., and Siegrist, R.L., 2006, Occurrence and fate of organic contaminants during onsite wastewater treatment: Environmental Science and Technology, v. 40, p. 7358-7366. (on-line abstract of journal article)

Coplen, T.B., Brand, W.A., Gehre, M., Gröning, M., Meijer, H.A.J., Toman, B., and Verkouteren, R.M., 2006, New guidelines for δ¹³C measurements: Analytical Chemistry, v. 78, p. 2439-2441. (on-line abstract of journal article)

Coplen, T.B., Brand, W.A., Gehre, M., Gröning, M., Meijer, H.A.J., Toman, B., and Verkouteren, R.M., 2006, After two decades a second anchor for the VPDB δ¹³C scale: Rapid Communications in Mass Spectrometry, v. 20, no. 21, p. 3165-3166. (on-line guest editorial in pdf format, 121 kb, published on-line in 2006 by John Wiley & Sons as a U.S. government work in the public domain)

Constantz, J., Su, G.W., and Hatch, C., 2006, Heat as a ground water tracer at the Russian River RBF facility, Sonoma County, California, in Hubbs, S.A., ed., Riverbank Filtration Hydrology: Dordrecht, Springer, p. 243-259.

Costa, J.E., Cheng, R.T., Haeni, F.P., Melcher, N., Spicer, K.R., Hayes, E., Plant, W., Hayes, K., Teague, C, and Barrick, D., 2006, Use of radars to monitor stream discharge by noncontact methods: Water Resources Research, v. 42, W07422, doi:10.1029/2005WR004430. (on-line abstract of journal article)

Cunningham, K. J., Renken, R. A., Wacker, M. A., Zygnerski, M. R., Robinson, E., Shapiro, A. M., and Wingard, G. L., 2006, Application of carbonate cyclostratigraphy and borehole geophysics to delineate porosity and preferential flow in the karst limestone of the Biscayne aquifer, SE Florida, in Harmon, R.S., and Wicks, C., eds., Perspectives on karst geomorphology, hydrology, and geochemistry - A tribute volume to Dereck C. Ford and William B. White: Geological Society of America Special Paper 404, Geological Society of America, Boulder, CO, p. 191-208.

Curtis, G.P. and Davis, J.A., eds., 2006, Tests of Uranium(VI) Adsorption Models in a Field Setting, Report NUREG CR-6911, U.S. Nuclear Regulatory Commission, Rockville, MD, 99 p. (on-line abstract or on-line paper in pdf format, 2874 KB)

Curtis, G.P., Davis, J.A., and Naftz, D.L., 2006, Simulation of reactive transport of uranium(VI) in groundwater with variable chemical conditions: Water Resources Research, v. 42, no. 4, W04404, doi: 10.1029/2005WR003979. (on-line abstract or on-line journal article in pdf format, 944 KB, , published 2006 by American Geophysical Union, not subject to U.S. copyright)

Davis, J.A. and Curtis, G.P., 2006, Consideration of Geochemical Issues in Groundwater Restoration at Uranium In-Situ Leach Mining Facilities: Report NUREG CR-6870, U. S. Nuclear Regulatory Commission, Rockville, MD, 111 p. (on-line abstract or on-line paper in pdf format, 2 MB)

Davis, J.A., Curtis, G.P., Wilkins, M.J., Kohler, M., Fox, P.M., Naftz, D.L., and Lloyd, J.R., 2006, Processes affecting transport of uranium in a suboxic aquifer: Physics and Chemistry of the Earth, v. 31, p. 548-555. (on-line abstract of journal article)

Davis, S.E., Childers, D.L., and Noe, G.B., 2006, The contribution of leaching to the rapid release of nutrients and carbon in the early decay of wetland vegetation: Hydrobiologia, v. 569, p. 87- 97. (on-line abstract of journal article)

Delworth, T.L., Broccoli, A.J., Rosati, A., Stouffer, R.J., Balaji, V., Beesley, J.A., Cooke, W.F., Dixon, K.W., Dunne, J., Dunne, K.A., Durachta, J.W., Findell, K.L., Ginoux, P., Gnanadesikan, A., Gordon, C.T., Griffies, S.M., Gudgel, R., Harrison, M.J., Held, I.M., Hemler, R.S., Horowitz, L.W., Klein, S.A., Knutson, T.R., Kushner, P.J., Langenhorst, A.R., Lee, H.-C., Lin, S.-J., Lu, J., Malyshev, S.L., Milly, P.C.D., Ramaswamy, V., Russell, J., Schwarzkopf, M.D., Shevliakova, E., Sirutis, J.J., Spelman, M.J., Stern, W.F., Winton, M., Wittenberg, A.T., Wyman, B., Zeng, F., and Zhang, R., 2006, GFDL's CM2 Global Coupled Climate Models. Part I: Formulation and Simulation Characteristics: Journal of Climate, v. 19, no. 5, p. 643-674. (on-line abstract or on-line journal article in pdf format)

Dettinger, M.D., 2006, A component-resampling approach for estimating probability distributions from small forecast ensembles: Climatic Change, v. 76, p. 149-168. (on-line abstract of journal article)

Doctor, D.H., Alexander, E.C., Jr., Petric, M., Kogovsek, J., Urbanc, J., Lojen, S., and Stichler, W., 2006, Quantification of karst aquifer discharge components through end-member mixing analysis using natural chemistry and stable isotopes as tracers: Hydrogeology Journal, v. 14, no. 7, p. 1,171, 1,191. (on-line abstract of journal article)

Dornblaser, M.M. and D.R. Halm, eds., 2006, Water and sediment quality of the Yukon River and its tributaries, from Eagle to St. Marys, Alaska, 2002-2003: U.S. Geological Survey Open-File Report 2006-1228, 201 p., Boulder, CO. (on-line abstract or on line report in pdf format, 18 MB)

Downing, J.A., Prairie, Y.T., Cole, J.J., Duarte, C.M., Tranvik, L.J., Striegl, R.G., McDowell, W.H., Kortelainen, P., Caraco, N.F., Melack, J.M., and Middelburg, J.J., 2006, The global abundance and size distribution of lakes, ponds, and impoundments: Limnology and Oceanography, v. 51, no. 5, p. 2388-2397. (on-line abstract of journal article)

Drees, K.P., Neilson, J.W., Betancourt, J.L., Quade, J., Henderson, D.A., Pryor, B., and Maier, R.M., 2006, Bacterial community structure of soils in a hyperarid region of the Atacama Desert: Applied and Environmental Microbiology, v. 72, p. 7,902-7,908. (on-line abstract of journal article)

Dressler, K.A., Leavesley, G.H., Bales, R.C., and Fassnacht, S.R., 2006, Evaluation of gridded snow water equivalent and satellite snow cover products for mountain basins in a hydrologic model: Hydrological Processes, v. 20, no. 4, p. 673-688. (on-line abstract of journal article)

Duan, Q., Schaake, J., Andreassian, V., Franks, S., Goteti, G., Gupta, H.V., Gusev, Y.M., Habets, F., Hall, A., Hay, L., Hogue, T., Huang, M., Leavesley, G., Liang, X., Nasonova, O.N., Noilhan, J., Oudin, L., Sorooshian, S., Wagener, T., and Wood, E.F., 2006, Model Parameter Estimation Experiment (MOPEX): An overview of science strategy and major results from the second and third workshops: Journal of Hydrology, v. 320, no. 1-2, p. 3-17. (on-line abstract of journal article)

Dyurgerov, M., and McCabe, G.J., 2006. Associations between accelerated glacier mass wastage and increased summer temperature: Arctic, Antarctic, and Alpine Research. v. 38, no. 2, p. 190-197. (on-line abstract of journal article)

Eby, N. and Evans, W.C., 2006, Taming the killer lakes of Cameroon: Geology Today, v. 22, no. 1, p. 18-22. (on-line abstract of journal article)

Engle, M.A.,Gustin, M.S., Goff, F., Counce, D.A., Janik, C.J., Bergfeld, D. and Rytuba, J.J., 2006, Atmospheric mercury emissions from substrates and fumaroles associated with three hydrothermal systems in the western United States: Journal of Geophysical Research, v. 111, D17304, doi:10.1029/2005JD006563. (on-line abstract of journal article)

Essaid, H.I., Wilson, J.T., and Baker, N.T., 2006, Spatial and temporal variability in streambed fluxes, Leary Weber Ditch, IN: Conference Proceedings of the 3^rd Federal Interagency Hydrologic Modeling Conference, April, 2006, Reno, Nevada, 8 p

Evans, W.C., Bergfeld, D., van Soest, M.C., Huebner, M.A., Fitzpatrick, J., and Revesz, K.M., 2006, Geochemistry of low-temperature springs northwest of Yellowstone caldera: Seeking the link between seismicity, deformation, and fluid flow: Journal of Volcanology and Geothermal Research, v. 154, p. 169 – 180, doi:10.1016/j.jvolgeores.2006.01.001 (on-line abstract of journal article)

Fenton, C.R., Webb, R.H., and Cerling, T.E., 2006, Peak discharge of a Pleistocene lava-dam outburst flood in the Grand Canyon, Arizona, U.S.A.: Quaternary Research, v. 65, p. 324-335. (on-line abstract of journal article)

Findell, K.L., Knutson, T.R., and Milly, P.C.D., 2006, Weak simulated extratropical responses to complete tropical deforestation: Journal of Climate, v. 19, no. 12, p. 2835-2850. (on-line abstract or on-line journal article in pdf format)

Fox, P.M., Davis, J.A., and Zachara, J.M., 2006, The effect of calcium on aqueous uranium(VI) speciation and adsorption to ferrihydrite and quartz: Geochimica et Cosmochimica Acta, v. 70, p. 1,379-1,387. (on-line abstract of journal article)

Friedman, J.M., Auble, G.T., Andrews, E.D., Kittel, G., Madole, R.F., Griffin, E.R., and Allred, T.M., 2006, Transverse and longitudinal variation in woody riparian vegetation along a montane river: Western North American Naturalist, v. 66, no. 1, p. 78-91.

Garavito, A.M., Kooi, H., and Neuzil, C.E., 2006, Numerical modeling of a long-term in-situ chemical osmosis experiment in the Pierre Shale, South Dakota: Advances in Water Resources, v. 29, no. 3, p. 481-492. (on-line abstract of journal article)

Gellis, A.C. and Landwehr, J.M., 2006, Identifying sources of fine-grained suspended-sediment in the Pocomoke River, an Eastern Shore tributary to the Chesapeake Bay: Proceedings of the Joint Federal Interagency Conference 2006, 8th Federal Interagency Sedimentation Conference, April 2-6, 2006, Reno, NV, Paper 5C-1 in CD_ROM file ISBN 0-9779007-1-1.

Gellis, A.C., Webb, R.M.T., McIntyre, S.C., and Wolfe, W.J., 2006, Land-use effects on erosion, sediment yields, and reservoir sedimentation: A case study in the Lago Loíza Basin, Puerto Rico: Physical Geography, v. 27, no.1, p. 39-69. (on-line abstract of journal article)

Gohn, G.S., Koeberl, C., Miller, K.G., Reimold, W.U., Cockell, C.S., Horton, J.W., Sanford, W.E., and Voytek, M.A., 2006, Chesapeake Bay Impact Structure Drilled, EOS, Transactions: American Geophysical Union, v. 87, no. 35, p. 349, 355.

Gray, J.R., and Gartner, J.W., 2006, Overview of selected surrogate technologies for continuous suspended sediment monitoring: Proceedings 8^th Federal Interagency Sedimentation Conference, April 2-6, 2006, Reno NV. (on-line article in pdf format)

Gray, S.T., Betancourt, J.L., Jackson, S.T., and Eddy, R., 2006, Role of multidecadal climate variability in a range extension of pinyon pine: Ecology, v. 87, p. 1,124-1,130. (on-line abstract of journal article)

Griffiths, P.G., Hereford, R., and Webb, R.H., 2006, Sediment yield and runoff frequency of small drainage basins in the Mojave Desert, California and Nevada: U.S. Geological Survey Fact Sheet 2006-3007, 4 p. (on-line fact sheet)

Griffiths, P.G., Hereford, R., and Webb, R.H., 2006, Sediment yield and runoff frequency of small drainage basins in the Mojave Desert, U.S.A.: Geomorphology, v. 74, p. 232-244. (on-line abstract of journal article)

Groffman, P.M., Altabet, M.A., Böhlke, J.K., Butterbach-Bahl, K., David, M.B., Giblin, A.E., Kana, T.M., Nielsen, L.P., Firestone, M.K., and Voytek, M.A., 2006, Methods for measuring denitrification: Diverse approaches to a difficult problem: Ecological Applications, v. 16, p. 2091-2122. (on-line abstract of journal article)

Han, L.F., Gröning, M., Plummer, L.N., and Solomon, D.K., 2006, Comparison of the CFC technique with other techniques (³H, ³H/³He, ⁸⁵Kr): Use of Chlorofluorocarbons in Hydrology: A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 11, p. 191-198. (on-line book chapter)

Hanks, T.C., and Webb, R.H., 2006, Effects of tributary debris on the longitudinal profile of the Colorado River in Grand Canyon: Journal of Geophysical Research, v. 111, no. F2, F02020, doi:10.1029/2004JF000257. (on-line abstract or on-line journal article in pdf format, 1764 KB, published 2006 by American Geophysical Union, not subject to U.S. copyright)

Hanson, R.T., Dettinger, M.D., and Newhouse, M.W., 2006, Relations between climate variability and hydrologic time series from four alluvial basins across the southwestern United States: Hydrogeology Journal, v. 14, p. 1,122-1,146. doi: 10.1007/s10040-006-0067-7 (on-line abstract of journal article)

Harte, P.T., Konikow, L.F., and Hornberger, G.Z., 2006, Simulation of Solute Transport Across Low-Permeability Barrier Walls: Journal of Contaminant Hydrology, v. 85, no 3-4, p. 247–270. (on-line abstract)

Harvey, J.W., Newlin, J.T., and Krupa, S.L., 2006, Modeling decadal timescale interactions between surface water and ground water in the central Everglades, Florida, USA: Journal of Hydrology, v. 320, p. 400-420. (on-line abstract of journal article)

Hatch, C.E., Fisher, A.T., Revenaugh, J. S., Constantz, J., and Ruehl, C, 2006, Quantifying surface water - groundwater interactions using time series analysis of streambed thermal records: Methods development : Water Resources Research, v. 42, W10410, doi: 10.1029/2005WR004787. (on-line abstract of journal article)

Hay, L.E. , M.P. Clark, M. Pagowski, G.H. Leavesley, and W.J. Gutowski, Jr., 2006, One-way coupling of an atmospheric and a hydrologic model in Colorado: Journal of Hydrometeorology, v. 7, no. 4, p. 569-589. (on-line abstract of journal article)

Hay, L.E., Leavesley, G.H., and Clark, M.P., 2006, Use of remotely-sensed snow covered area in watershed model calibration for the Sprague River, Oregon: Joint 8th Federal Interagency Sedimentation Conference and 3rd Federal Interagency Hydrologic Modeling Conference, April 2-6, 2006, Reno, Nevada

Hay, L.E. , Leavesley, G.H., Clark, M.P., Markstrom, S.L., Viger, R.J., and Umemoto, M., 2006, Step-wise, multiple-objective calibration of a hydrologic model for a snowmelt-dominated basin: Journal of American Water Resources, v. 42, no. 4, p. 877-890. (on-line abstract of journal article)

Hay, L.E. and Umemoto, M., 2006, Multiple-objective step-wise calibration using Luca; U.S. Geological Survey Open File Report 2006-1323. (on-line report in pdf format)

Heckman A.K., Kinzel P.J, Nelson, J.M., 2006, Use of aerial infrared thermography to map emergent riverine sandbars. in Proceedings of the 8th Federal Interagency Sedimentation Conference, April 2-6, 2006, Reno, Nev: Subcommittee on Sedimentation, CD_ROM, 8 p.

Heilweil, V.M., and Hsieh, P.A., 2006, Determining anisotropic transmissivity using a simplified Papadopulos method: Ground Water, v. 44, p. 749-753. (on-line abstract of journal article)

Hereford, R., Webb, R.H., and Longpré, C., 2006, Precipitation history and ecosystem response to multidecadal precipitation variability in the Mojave Desert and vicinity, 1893-2001: Journal of Arid Environments, v. 67, p. 13–34. (on-line abstract or on-line journal article)

Hill, M.C., 2006, The Practical Use of Simplicity in Developing Ground Water Models: Ground Water, v. 44, no. 6, p. 775-781. (on-line abstract or on-line article in pdf format, 241 KB)

Hill, M.C., Barlebo, H.C., and Rosbjerg, D., 2006, Reply to Comment on "Investigating the Macrodispersion Experiment (MADE) site in Columbus, Mississippi, using a three-dimensional inverse flow and transport model" by Fred J. Molz, Chunmiao Zheng, Steven M. Gorelick, and Charles F. Harvey: Water Resources Research, v. 42, W06604, doi:10.1029/2005WR004624.

Höhn, R., Isenbeck-Schröter, M., Kent, D.B., Davis, J.A., Jakobsen, R., Jann, S., Niedan, V., Scholz, C., Stadler, S., and Tretner, A., 2006, Tracer test with As(V) under variable redox conditions controlling arsenic transport in the presence of elevated ferrous iron concentrations: Journal of Contaminant Hydrology, v. 88, p. 36-54. (on-line abstract of journal article)

Holmgren, C., Betancourt, J.L., and Rylander, K.A., 2006, A 36,000-yr history of the Peloncillo Mountains, southeastern Arizona, USA: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 240, p. 405-422. (on-line abstract)

Hovorka, S.D., Benson, S.M., Doughty, C., Freifeld, B.M., Sakurai, S., Daley, T.M., Kharaka, Y.K., Holtz, M.H., Trautz, R.C., Nance, H.S., Myer, L.R., and Knauss, K.G., 2006, Measuring permanence of CO₂ storage in saline formations: The Frio experiment: Environmental Geosciences, v. 13, p. 105-121. (on-line abstract of journal article)

Hupp, C.R. and Noe, G.B., 2006, Sediment and nutrient accumulation within lowland bottomland ecosystems - An example from the Atchafalaya River Basin, Louisiana: Proceedings Hydrology and Management of Forested Wetlands, American Society of Agricultural and Biological Engineers, p. 175-187.

Ingebritsen, S.E., Sanford, W.E., and Neuzil, C.E., 2006, Groundwater in Geologic Processes , 2nd edition: Cambridge, Cambridge University Press, 536 p. (on-line book information)

Jackman, A.P., Triska, F.J., and Duff, J.H., 2009, Is rhodamine WT conservative in small stream studies? Results from upland and lowland reaches of a tropical stream at La Selva Biological Preserve, Costa Rica: Verhandlungen Internationale Vereinigung fur Theoretische und Angewandte Limnologie, v. 29, p. 1,645-1,650.

James, S.C., Dickinson, J.E.,. Mehl, S.W., Hill, M.C., Leake, S.A., Zyvoloski, G.A., and Eddebbarh, A.-A., 2006, New ghost node method for linking different models with varied grid refinement: Proceedings of MODFLOW and More - Managing Ground-Water Systems, v. 2, p. 710-714.

Jarrett, R.D., and Costa, J.E., 2006, 1976 Big Thompson Flood, Colorado--Thirty years later: U.S. Geological Survey Fact Sheet 2006-3095, 6 p. (on-line fact sheet in pdf format, 6.4 MB)

Jarrett, R.D., and Vandas, S.J. (compilers), 2006, 1976 Big Thompson Flood, Colorado: U.S. Geological Survey General Information Product 35. (on-line summary and access to poster in pdf format)

Jones, E.J.P., Nadeau, T., Voytek, M.A., and Landa, E.R., 2006, Role of microbial iron reduction in the dissolution of iron hydroxysulfate minerals: Journal of Geophysical Research, v. 111, no. G1, G01012, doi: 10.1029/2005JG000089 (on-line abstract or on-line journal article in pdf format, 669 KB - published by the American Geophysical Union; not subject to U.S. copyright)

Jones, E.J.P., Voytek, M.A., Lorah, M.M., and Kirshtein, J.D., 2006, Characterization of a microbial consortium capable of rapid and simultaneous dechlorination of 1,1,2,2-tetrachloroethane and chlorinated ethane and ethene intermediates: Bioremediation Journal, v. 10, p. 153-168. (on-line abstract of journal article)

Kakouros, E., Kharaka, Y.K., and Oberdorfer, J.A., 2006, Leaching rates and forms of selenium in cores from an agricultural area in Middle Green River basin, Utah, USA: Earth Science Frontiers, v. 13, p. 86-97.

Kean, J.W., and Smith J.D., 2006, Form drag in rivers due to small-scale natural topographic features, 1. Regular sequences: Journal of Geophysical Research, 111, F04009, doi:10.1029/2006JF000467. (on-line abstract or on-line journal article in pdf format, 413 KB published by American Geophysical Union but not subject to U.S. copyright)

Kean, J.W., and Smith, J.D., 2006, Form drag in rivers due to small-scale natural topographic features, 2. Irregular sequences: Journal of Geophysical Research, 111, F04010, doi:10.1029/2006JF000490. (on-line abstract or on-line journal article in pdf format, 650 KB published by American Geophysical Union but not subject to U.S. copyright)

Keeley, J.E., Allen, C.D., Betancourt, J.L., Chong, G.W., Fotheringham, C.J. and Safford, H.D., 2006, A 21st century perspective on postfire seeding: Journal of Forestry, v. 104, no. 2, p. 103-104.

Kharaka, Y.K., Cole, D.R., Hovorka, S.D., Gunter, W.D., Knauss, K.G., and Freifeld, B.M., 2006, Gas-water-rock interactions in Frio Formation following CO2 injection: Implications for the storage of greenhouse gases in sedimentary basins: Geology, v. 34, p. 577-580. (on-line abstract of journal article)

Kharaka, Y.K., Cole, D.R., Thordsen , J.J., Kakouros, E., and Nance, H.S., 2006, Gas-water-rock interactions in sedimentary basins: CO₂ sequestration in the Frio Formation, Texas, USA: Journal of Geochemical Exploration, v. 89, p. 183-186. (on-line abstract of journal article)

Kharaka, Y.K., Cole, D.R., Thordsen, J.J., Kakouros, E., Pfiffner, S., and Hovorka, S.D., 2006, Environmental implications of toxic metals and dissolved organics released as a result of CO2 injection into the Frio Formation, Texas, USA: Proceedings of the International Symposium on Site Characterization for CO₂ Geologic Storage, March 20-22, 2006, Berkeley, California, Lawrence Berkeley National Laboratories Report LBNL-59726, p. 214-218.

Kimball, B.A., Nordstrom, D.K., Runkel, R.L., Vincent, K.R., and Verplanck, P.L., 2006, Questa baseline and pre-mining ground-water quality investigation. 23. Quantification of solute mass loading for Red River, New Mexico : U.S. Geological Survey Scientific Investigation Report, 2006-5004, 44 p. (on-line abstract or on-line report in pdf format, 1.7MB)

King, S.A., Behnke, S., Slack, K., Krabbenhoft, D.P., Nordstrom, D.K. Burr, M.D., and Striegl, R.G., 2006, Mercury in water and biomass of microbial communities in hot springs of Yellowstone National Park, USA: Applied Geochemistry, v. 21, no. 11, p. 1868-1879. (on-line abstract of journal article)

Kinzel, P.J., Nelson, J.M., and Heckman, A.K., 2006, Channel morphology and bed sediment characteristics before and after riparian vegetation clearing in the Cottonwood Ranch, Platte River, Nebraska: U.S. Geological Survey Scientific Investigations Report 2005-5285, 25 p. (on-line abstract or on-line report in pdf format, 9.46MB)

Kinzel, P.J., Nelson, J.M., Parker, R.S., and Davis, L.R., 2006, Spring census of mid-continent sandhill cranes using aerial infrared videography: Journal of Wildlife Management, v. 70, no. 1, p. 70-77. (on-line abstract of journal article)

Kinzel, P.J., Nelson, J.M. and Wright, C.W., 2006, Monitoring changes in the Platte River riparian corridor with serial LiDAR surveys: U.S. Geological Survey Fact Sheet 2006-3063, 4p. (on-line abstract or on-line fact sheet in pdf format, 3 MB)

Kinzel, P.J., Wright, C.W., and Nelson, J.M., 2006, Application of an experimental airborne laser scanner for surveying a braided river channel, in Proceedings of the 8th Federal Interagency Sedimentation Conference, April 2-6, 2006, Reno, Nev: Subcommittee on Sedimentation, CD_ROM, 8 p.

Knowles, N., Dettinger, M.D., and Cayan, D.R., 2006, Trends in snowfall versus rainfall in the western United States: Journal of Climate, v. 18, p. 4,545-4,559. (on-line abstract of journal article)

Koh, D.-C., Plummer, L.N., Solomon, D.K., Busenberg, E., Kim, Y.-J., and Chang, H.-W., 2006, Application of environmental tracers to mixing, evolution, and nitrate contamination of ground water in Jeju Island, Korea: Journal of Hydrology, v. 327, p. 258-275. doi:10.1016/j.jhydrol.2005.11.021 (on-line abstract of journal article)

Konikow, L.F., Reilly, T.E., Barlow, P.M., and Voss, C.I., 2006, Chapter 23: Groundwater Modeling, in Delleur, J., ed., The Handbook of Groundwater Engineering, Second Edition: Boca Raton, CRC Press, 54 p.

Konikow, L.F., 2006, From data gathering to ground-water modeling, in Sánchez-Vila, X., Cabrera, M.C., and Valverde, M., eds., Proceedings of the IAH Workshop "From Data Gathering and Groundwater Modelling to Integrated Management", Alicante, Spain, October 2005: Madrid, Instituto Geológico y Minero de España, p. 17-31.

Konikow, L.F., and Hornberger, G.Z., 2006, Modeling Effects of Multinode Wells on Solute Transport: Ground-Water, v. 44, no. 5, p. 648-660. (on-line abstract of journal article)

Konikow, L.F., and Hornberger, G.Z., 2006, Use of the Multi-Node Well (MNW) Package When Simulating Solute Transport with the MODFLOW Ground-Water Transport Process , U.S. Geological Survey Techniques and Methods 6-A15, 34 p. (on-line report in pdf format)

Konikow, L.F., Hornberger, G.Z., and Zinn, B.A., 2006, Simulating effects of Multi-Node Wells on solute transport, in Poeter, E., Hill, M.C. Zheng, C., eds., MODFLOW and More 2006, Managing Ground-Water Systems: Proceedings v. 2, International Ground Water Modeling Center, Colorado School of Mines, Golden, CO, p. 668-672.

Konikow, L.F., Reilly, T.E., Barlow, P.M., and Voss, C.I., 2006, Groundwater Modeling, in Delleur, J.W., ed., The Handbook of Groundwater Engineering, Second Edition: Boca Raton, CRC press, Chapter 23.

Koterba , M.T., Andres, A.S., Vrabel, J., Crilley, D.M., Szabo, Z., DeWilde, J.F., Aiken, G.R. and Reyes-Padro, B., 2006, Occurrence and distribution of mercury in the surficial aquifer, Long Neck Peninsula, Sussex County, Delaware, 2003-04: USGS Scientific Investigations Report 2006-5011, 163 p. (on-line abstract or on-line report in pdf format, 12 MB)

Kulp, T.R., Hoeft, S.E., Miller, L.G., Saltikov, C., Murphy, J.N., Han, S., Lanoil, B., and Oremland, R.S., 2006, Dissimilatory arsenate and sulfate reduction in sediments of two hypersaline, arsenic-rich soda lakes: Mono and Searles Lakes, California : Applied and Environmental Microbiology, v. 72, p. 6,514-6,526. (on-line abstract of journal article)

Kuwabara, J.S., Topping, B.R., Woods, P.F., Carter, J.L., and Hager, S.W., 2006, Interactive effects of dissolved zinc and orthophosphate on phytoplankton from Coeur d'Alene Lake, Idaho: U.S. Geological Survey Scientific Investigations Report 2006-1034, 47 p. (on-line executive summary or on-line report in pdf format, 32.9MB)

Kwicklis, E., Wolfsberg, A., Stauffer, P., Walvoord, M., and Sully, M., 2006, Multiphase, multicomponent parameter estimation for liquid and vapor fluxes in deep arid systems using hydrologic data and natural environmental tracers: Vadose Zone Journal, v. 5, p. 934-950, doi:10.2136/vzj2006.0021. (on-line abstract of journal article)

Landwehr, J.M. and Coplen, T.B., 2006, Line-conditioned excess: a new method for characterizing stable hydrogen and oxygen isotope ratios in hydrologic systems: Isotopes in Environmental Studies, Aquatic Forum 2004, International Atomic Energy Agency, IAEA-CSP-26, p. 132-135. (on-line paper in pdf format)

Langland, M.J., Raffensperger, J.P., Moyer, D.L., Landwehr, J.M., and Schwarz, G.E., 2006, Changes in Streamflow and Water Quality in Selected Nontidal Basins in the Chesapeake Bay Watershed, 1985-2004: U.S. Geological Survey Scientific Investigations Report 2006-5178, 75 p.and appendices. (on-line report)

Latorre, C., Betancourt, J.L., and Arroyo, M.T.K., 2006, Vegetation and climate history of a perennial river canyon in the Rio Salado Basin (22°S) of northern Chile: Quaternary Research, v. 65, no. 3, p. 450-466. (on-line abstract of journal article)

Light, H.M., Vincent, K.R., Darst, M.R., and Price, F.D., 2006, Water-level decline in the Apalachicola River, Florida, from 1954 to 2004, and effects on floodplain habitats: U.S. Geological Survey Scientific Investigations Report 2006-5173, 83 p., plus CD. (on line report, appendices, and data)

Linard, J.I., Wolock, D.M., Webb, R.M.T., and WieczorekM.E., 2006, Precipitation-runoff modeling to compare hydrologic processes governing solute transport in an agricultural watershed in Maryland. Proceedings of the 3rd Federal Interagency Hydrologic Modeling Conference, Reno, Nevada, April 2-6, 2006, ISBN 0-9779007-0-3.

Lloyd, J.R., and Oremland, R.S., 2006, Microbial transformations of arsenic in the environment: From soda lakes to aquifers: Elements, v. 2, p. 85-90.

Lopez, C.B., Cloern , J.E., Schraga, T.S., Little, A.J., Lucas, L.V., Thompson, J.K., and Burau, J.R., 2006, Ecological values of shallow-water habitats: Implications for the restoration of disturbed ecosystems: Ecosystems, v. 9, p. 422-440. (on-line abstract of journal article)

Lucas, L.V., Sereno, D.M., Burau, J.R., Schraga, T.S., Lopez, C.B., Stacey, M.T., Parchevsky, K.V., and Parchevsky, V.P., 2006, Intratidal variability of water quality in a shallow tidal lagoon: Mechanisms and implications: Estuaries and Coasts, v. 29, p. 711-730. (on-line abstract of journal article)

Magirl, C.S., Griffiths, P.G., and Webb, R.H., 2006, ADV point measurements within rapids of the Colorado River, in Grand Canyon in Graham, R., ed., Examining the Confluence of Environmental and Water Concerns, Proceedings of the 2006 World Environmental and Water Resources Congress, Omaha, Nebraska, May 21-25, 2006: Reston, American Society of Civil Engineers, ISBN 0-7844-0856-4.

Majzlan, J., Navrotsky, A., McCleskey, R.B., and Alpers, C.N., 2006, Thermodynamic properties and crystal structure refinement of ferricopiapite, coquimbite, rhomboclase, and Fe₃(SO₄)₂(H₂O)₅: European Journal of Mineralogy, v. 18, p. 175-186. (on-line abstract of journal article)

Mariner, R.H., Evans, W.C., and Young, H.W., 2006, Comparison of circulation times of thermal waters discharging from the Idaho batholith based on geothermometers temperatures, helium concentrations, and ¹⁴C: Geothermics, v. 35, no. 1, p. 3-25. (on-line abstract of journal article)

Mariner, R.H., Venezky, D.Y., and Hurwitz, S., 2006, Chemical and isotopic database of water and gas from hydrothermal systems with an emphasis on the western United States: U.S. Geological Survey Data Series Report DS-169. (on-line data-base report)

Markstrom, S.L., Regan, R.S., Niswonger, R.G., and Prudic, D.E., 2006, GSFLOW - A basin-scale model for coupled simulation of ground-water and surface-water flow - Part A. Concepts for modeling surface-water flow with the U.S. Geological Survey Precipitation-Runoff Modeling System model: Proceedings of the 3rd Federal Hydrologic Modeling Conference, Reno, Nevada, April 2-6, 2006.

Marzolf, G.R., 2006, Citiation – Robert G. Wetzel Award for Excellence in Water Quality: Hydrological Science and Technology, v. 22, no. 1-4, p. 219-221

Matmon, D., and Bekins, B.A., 2006, Hydromechanics of a high taper angle, low-permeability prism: A case study from Peru: Journal of Geophysical Research, v. 111, no, B7, B07101, doi:10.1029/2005JB003697. (on-line abstract of journal article)

Matter, J.M., Goldberg, D.S., Morin, R.H., and Stute, M., 2006, Contact zone permeability at intrusion boundaries: new results from hydraulic testing and geophysical logging in the Newark Rift Basin, New York, USA: Hydrogeology Journal, v. 14, p. 689-699, doi 10.1007/S10040-005-0456-3. (on-line abstract of journal article)

McCabe, G.J., and Clark, M.P., 2006, Shifting covariability of North American summer monsoon precipitation with antecedent winter precipitation: International Journal of Climatology, v. 26, no. 8, p. 991-999. (on-line abstract of journal article)

McCabe, G.J., and Hay, L.E., 2006. Hydroclimatic aspects of the Upper Klamath River Basin: Proceedings of the 3rd Federal Hydrologic Modeling Conference, Reno, Nevada, April 2-6, 2006, published as a CD-ROM.

McCabe, G.J., and Palaecki, M.A., 2006, Multidecadal climate variability of global lands and oceans: International Journal of Climatology, v. 26, no. 7, p. 849-865. (on-line abstract of journal article)

McDonald, R.R., Nelson, J.M., Kinzel, P.J., and Conaway, J.S., 2006, Modeling surface-water flow and sediment mobility with the multi-dimensional surface water modeling system: U.S. Geological Survey Fact Sheet 2005-3078. (on-line fact sheet)

McLaughlin, K., Kendall, C., Silva, S.R., Young, M., and Paytan, A., 2006, Phosphate oxygen isotope ratios as a tracer for sources and cycling of phosphate in north San Francisco Bay, California: Journal of Geophysical Research, v. 111, G03003, doi:10.1029/2005JG000079. (on-line abstract of journal article)

McLaughlin, K., Paytan, A., Kendall, C., and Silva, S.R., 2006, Oxygen isotopes of phosphatic compounds -- Application for marine particulate matter, sediments and soils: Marine Chemistry, v. 98, p. 148-155. (on-line abstract of journal article)

McLaughlin, S.P. and Bowers, J.E., 2006, Plant species richness at different scales in native and exotic grasslands in southeastern Arizona: Western North American Naturalist, v. 66, p. 209-221.

McMahon, P.B., and Böhlke, J.K., 2006, Regional patterns in the isotopic composition of natural and anthropogenic nitrate in groundwater, High Plains, USA: Environmental Science & Technology, v. 40, p. 2965-2970. (on-line abstract or on-line journal article in pdf format, 180 KB, published 2006 by American Geophysical Union, not subject to U.S. copyright)

McMahon, P.B., K.F. Dennehy, B.W. Bruce, J.K. Böhlke, R.L. Michel, J.J. Gurdak, and D.B. Hurlbut, 2006, Storage and transit time of chemicals in thick unsaturated zones under rangeland and irrigated cropland, High Plains, United States: Water Resources Research, 42, W03413, doi:10.1029/2005WR004417. (on-line abstract of journal article)

Mehl, S., 2006, Use of Picard and Newton iteration for solving nonlinear ground water flow equations: Ground Water, v. 44, no, 4, Page 583-594. (on-line abstract of journal article)

Mehl, S., Hill, M.C., and Leake, S.A., 2006, Comparison of local grid refinement methods for MODFLOW: Ground Water, v. 44, no. 6, p. 792-796. (on-line abstract or on-line jourrnal article in pdf format, 198 KB, published by the American Ground Water Association, no claim to original U.S. government works)

Mendoza, M.E., Bocco, G., Bravo, M., Lopez-Granados, E., and Osterkamp, W.R., 2006, Predicting water surface fluctuation of continental lakes - a RS and GIS based approach in central Mexico: Water Resources Management, v. 20, no. 2, p. 291- 311. (on-line abstract of journal article)

Mitchell, M.J. Piatek, K.B., Christopher, S., Mayer, B., Kendall, C., and McHale, P., 2006, Solute sources in stream water during consecutive fall storms in a northern hardwood forest watershed: A combined hydrological, chemical and isotopic approach: Biogeochemistry, v. 78, p. 217-246. (on-line abstract of journal article)

Moody, J.A., and Kinner, D.A., 2006, Spatial sructures of stream and hillslope drainage networks following gully erosion after wildfire: Earth Surface Processes and Landforms, v. 31, no. 3, p. 319-337. (on-line abstract of journal article)

Morin, R.H., 2006, Negative correlation between porosity and hydraulic conductivity in sand-and-gravel aquifers at Cape Cod, Massachusetts, USA: Journal of Hydrology, v. 316, p. 43-52. (on-line abstract of journal article)

Morin, R.H., Savage, W.Z., and Rivard, C., 2006, Hydrologic Consequences of gravity-induced stresses along a ridge - example from Annapolis Valley, Nova Scotia: Proceedings, 41st U.S. Symposium on Rock Mechanics, June 17-21, Golden, CO, American Rock Mechanics Association, paper no. 1054. (on-line abstract of paper)

Moros, M., Andrews, J.T., Eberl, D.D., and Jansen, E., 2006, Holocene history of drift ice in the northern North Atlantic: Evidence for different spatial and temporal modes: Paleoceanography, v. 21, doi:10.1029/2005PA001214. (on-line abstract of journal article)

Murphy, S.F., 2006, State of the watershed: Water quality of Boulder Creek, Colorado: U.S. Geological Survey Circular 1284, 34 p. (on-line publication in pdf format, 9.2 MB)

Naff, R.L., and J.D. Wilson, 2006, A comparison of preconditioning techniques for parallelized PCG solvers for the cell-centered finite-difference problem: XVI International Conference on Computational Methods in Water Resources, Copenhagen, Denmark, 18-22 June, 9 p. (on-line paper)

Nardoto, G.B., Silva, S., Kendall, C., Ehleringer, J.R., Chesson, L.A., Ferraz, E.S.B., Moreira, M.Z., Ometto, J.P.H.B., and Martinelli, L.A., 2006, Geographical patterns of human diet derived from stable-isotope analysis of fingernails: American Journal of Physical Anthropology, v. 131, p. 137-146, doi:10.1002/ajpa.20409. (on-line abstract of journal article)

Neff, B.P., Rosenberry, D.O., Haack, S.K., Savino, J.F., and Lundstrom, S.C., 2006, Coastal groundwater / surface-water interactions: a Great Lakes case study: Proceedings of the 25th Anniversary meeting and international conference of the American Institute of Hydrology, Coastal Hydrology and Processes, p. 289-295.

Nelson, J.M., McDonald, R.R., and Kinzel, P.J., 2006, Morphologic evolution in the USGS surface-water modeling system, in Proceedings of the 8th Federal Interagency Sedimentation Conference, April 2-6, 2006, Reno, Nev: Subcommittee on Sedimentation, CD_ROM, 8 p.

Nimmo, J.R., and Perkins, K.S., 2006, Effect of soil disturbance on aquifer recharge - case study on the Snake River Plain, Idaho National Laboratory, USA: 34th Congress, Bejing, October 9-13, 2006, International Association of Hydrogeologists [Proceedings] - CD only.

Niswonger, R.G., and Prudic, D.E., Markstrom, S.L., and Regan, R.S., 2006, GSFLOW - A basin-scale model for coupled simulation of ground-water and surface-water flow - Part B. Concepts for modeling ground-water flow with the U.S. Geological Survey MODFLOW model: Proceedings of the 3rd Federal Hydrologic Modeling Conference, Reno, Nevada, April 2-6, 2006.

Norris, J.T., Jackson, S.T., and Betancourt, J.L., 2006, Classification tree and minimum-volume ellipsoid analyses of the distribution of ponderosa pine in the western USA: Journal of Biogeography, v. 33, no. 2, p. 342-360. (on-line abstract of journal article)

Osterkamp, W.R., Toy, T.J., and Lenart, M.T., 2006, Development of partial rock veneers by root throw in a subalpine setting: Earth Surface Processes and Landforms, v. 31, no. 1, p. 1-14. (on-line abstract of journal article)

Parks, J.A., Dean, J.S., and Betancourt, J.L., 2006, Tree rings, drought and the Pueblo abandonment in south-central New Mexico during the 1670s, in Doyel, D.E., and Dean, J.S, eds., Environmental Change and Human Adaptation in the Ancient Southwest: Salt Lake City, University of Utah Press.

Paulson, A.J., Konrad, C.P., Frans, L.M., Noble, M.A., Kendall, C., Josberger, E.G., Huffman, R.L., and Olsen, T.D., 2006, Freshwater and saline loads of dissolved inorganic nitrogen to Hood Canal and Lynch Cove, western Washington: U.S. Geological Survey Scientific Investigations Report 2006-5106, 91 p. (on-line report or on-line report in pdf format, 5.5 MB)

Payne, T.E., Davis, J.A., Ochs, M., Olin, M., Tweed, C.J., Altmann, S., and Askarieh, M., 2006, Comparative evaluation of surface complexation models for radionuclide uptake by diverse geologic materials, in Lutzenkirchen, J., ed., Surface Complexation Modelling: Amsterdam, Elsevier, Volume 11 in the Interface Science and Technology series, chapt. 22., p. 605-633.

Pederson, G.T., Gray, S.T., Fagre, D.B., and Graumlich, L.J., 2006, Long-duration drought variability and impacts on ecosystem services: Earth Interactions, v. 10, p. 1-28. (on-line abstract of journal article)

Perakis, S.S., Maguire, D.A., Bullen, T.D., Cromack, K., Waring, R.H. and Boyle, J.R., 2006, Coupled nitrogen and calcium cycles in forests of the Oregon Coast Range: Ecosystems, v. 9, no.1, p. 63-74. (on-line abstract of journal article)

Peters N.E., Shanley, J.B., Aulenbach, B.T., Webb, R.M., Campbell, D.H., Hunt, R., Larsen, M.C., Stallard, R.F., Troester, J., and Walker, J.F., 2006, Water and solute mass balance of five small, relatively undisturbed watersheds in the U.S.: Science of the Total Environment, v. 358, p. 221- 242. (on-line abstract of journal article)

Piper, D.Z., Ludington, S., Duval, J.S., and Taylor, H.E., 2006, Geochemistry of bed and suspended sediment in the Mississippi River system: provenance versus weathering and winnowing: Science of the Total Environment, v. 362, no. 1-3, p. 179-204. (on-line abstract of journal article)

Planer-Friedrich, B., Lehr, C., Matschullat, J., Merkel, B.J., Nordstrom, D.K., and Sandstrom, M.W., 2006, Speciation of volatile arsenic at geothermal features in Yellowstone National Park: Geochimica et Cosmochimica Acta, v. 70, p. 2,480-2,491. (on-line abstract of journal article)

Plummer, L.N., Böhlke, J.K., and Doughten, M.W., 2006, Perchlorate in Pleistocene and Holocene groundwater in North-Central New Mexico: Environmental Science and Technology, v. 40, no. 6, p. 1757-1763. (on-line abstract or on-line journal article in pdf format, 409 KB, published 2006 by American Geophysical Union, not subject to U.S. copyright)

Plummer, L.N., and Busenberg, E., 2006, Chlorofluorocarbons in aquatic environments: Use of Chlorofluorocarbons in Hydrology: A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 1, p. 1-8. (on-line book chapter)

Plummer, L.N., and Busenberg, E., 2006, Chlorofluorocarbons in the atmosphere: Use of Chlorofluorocarbons in Hydrology: A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 2, p. 9-16. (on-line book chapter)

Plummer, L.N., Busenberg, E., and Cook, P.B., 2006, Principles of chlorofluorocarbon dating: Use of Chlorofluorocarbons in Hydrology: A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 3, p. 17-30.

Plummer, L.N., Busenberg, E., Cook, P.G., Oster, H., Han, L.F., and Gröning, M., 2006, Selected case studies using CFC data: Use of Chlorofluorocarbons in Hydrology: A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 9, p. 135-182.

Plummer, L.N., Busenberg, E., and Han, L.F., 2006, CFCs in binary mixtures of young and old groundwater: Use of Chlorofluorocarbons in Hydrology: A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 5, p. 59-72.

Plummer, L.N., Busenberg, E., and Han, L.F., 2006, Data interpretation in representative cases: Use of Chlorofluorocarbons in Hydrology: A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 8, p. 105-134.

Poeter, E., Hill, M.C. Zheng, C., eds., 2006, Managing Ground-Water Systems: Proceedings, International Ground Water Modeling Center, Colorado School of Mines, Golden, CO.

Presser, T.S. and Luoma, S.N. , 2006, Forecasting selenium discharges to the San Francisco Bay-Delta Estuary: Ecological effects of a proposed San Luis Drain extension: U.S. Geological Survey Professional Paper 1646, 196 p. (on-line abstract or on-line paper in pdf format, 5.5MB)

Pringle, C.M., and Triska, F.J., 2006, Effects of nutrient enrichment on periphyton, in Hauer, F.R., and Lamberti. G.A., eds., Methods in Stream Ecology: New York, Elsevier Academic Press, Chapt. 32, p. 743-760.

Provost, A.M., Payne, D.F. and Voss, C.I., Simulation of Saltwater Movement in the Upper Floridan Aquifer in the Savannah, Georgia–Hilton Head Island, South Carolina, Area, Predevelopment–2004, and Projected Movement for 2000 Pumping Conditions, 2006, U.S. Geological Survey Scientific Investigations Report 2006-5058, 124 p. (on-line abstract or on-line report in pdf format, 15 MB)

Rainbow, P.S., Poirie, L., Smith, B.D., Brix, K.V. and Luoma, S.N., 2006, Trophic transfer of trace metals: Subcellular compartmentalization in a polychaete and assimilation by a decapod crustacean: Marine Ecology Progress Series, v. 308, p. 91-100. (on-line abstract of journal article)

Rainbow, P.S., Poirie, L., Smith, B.D., Brix, K.V. and Luoma, S.N., 2006, Trophic transfer of trace metals from the polychaete worm Nereis diversicolor to the polychaete N. virens and the decapod crustacean Palaemonetes varians: Marine Ecology Progress Series, v. 321, p. 167-181. (on-line abstract of journal article)

Ralph, F.M., Neiman, P.J., Wick, G.A., Gutman, S.I., Dettinger, M.D., Cayan, D.R., and White, A.B., 2006, Flooding on California's Russian River: Role of atmospheric rivers: Geophysical Research Letters, v. 33, doi:10.1029/2006GL026689. (on-line abstract of journal article)

Reddy, M.M., Schuster, P., Kendall, C., and Reddy, M.B., 2006, Characterization of surface and ground water δ¹⁸O seasonal variation and its use for estimating groundwater residence times: Hydrological Processes, v. 20, no. 8, p. 1753-1772. (on-line abstract of journal article)

Reddy, M.M., Schuster, P., Kendall, C., and Reddy, M.B., 2006, Reply to comment on "Characterization of surface and ground water δ¹⁸O seasonal variation and its use for estimating groundwater residence times" by R.E. Criss, and W.E. Winston: Hydrological Processes, v. 20, no. 16, p. 3573-3578.

Reeve, A.S., Evensen, R., Glaser, P.H., Siegel, D.I., and Rosenberry, D., 2006, Flow path oscillations in transient ground-water simulations of large peatland systems: Journal of Hydrology, v. 316, p. 313-324. (on-line abstract of journal article)

Repert, D.A., Barber, L.B., Hess, K.M., Keefe, S.H., Kent, D.B., LeBlanc, D.R., and Smith, R.L., 2006, Long-term natural attenuation of carbon and nitrogen within a groundwater plume after removal of the treated wastewater source: Environmental Science and Technology, v. 40, p. 1,154-1,162. (on-line abstract or on-line report in pdf format, 474 kb, published by American Chemical Society; not subject to U.S. copyright)

Révész, K., and Coplen, T.B., eds., 2006, Methods of the Reston Stable Isotope Laboratory: U.S. Geological Survey Techniques and Methods, book 10.

Révész, K., and Qi, H., 2006, Determination of δ(³⁴S/³²S) of low concentration sulfate in water, RSIL Lab Code 1949, in Révész, K., and Coplen, T.B., eds., Methods of the Reston Stable Isotope Laboratory: Reston, Virginia: U.S. Geological Survey Techniques and Methods, book 10, chap. C8, 44 p. (on-line abstract or on-line publication in pdf format, 983KB)

Révész, K., and Qi, H., 2006, Determination of the δ(¹⁵N/¹⁴N) and δ(¹³C/¹²C) of Total N and C in Solids: RSIL Lab Code 1832, in Révész, K., and Coplen, T.B., eds., Methods of the Reston Stable Isotope Laboratory: Reston, Virginia, U.S. Geological Survey, Techniques and Methods, book 10, chap. C5, 31 p. (on-line abstract or on-line publication in pdf format, 708KB)

Révész, K., and Qi, H., 2006, Determination of the δ(³⁴S/³²S) of Sulfate in Water: RSIL Lab Code 1951, in Révész, Kinga, and Coplen, Tyler B., eds., Methods of the Reston Stable Isotope Laboratory: U.S. Geological Survey, Techniques and Methods, book 10, chap. C10, 33 p. (on-line abstract or on-line publication in pdf format, 988 KB)

Révész, K., Qi, H., 2006, Determination of the δ(³⁴S/³²S) of Total Sulfur in Solids: RSIL Lab Code 1800, in Révész, Kinga, and Coplen, Tyler B., eds., Methods of the Reston Stable Isotope Laboratory: U.S. Geological Survey, Techniques and Methods, book 10, chap. C4, 31 p. (on-line abstract or on-line publication in pdf format, 550 KB)

Révész, K., and Qi, H., 2006, Determination of the δ(¹⁵N/¹⁴N) of Total Nitrogen in Solids: RSIL Lab Code 2893, in Révész, Kinga, and Coplen, Tyler B., eds., Methods of the Reston Stable Isotope Laboratory: U.S. Geological Survey, Techniques and Methods, book 10, chap. C11, 31 p. (on-line abstract or on-line chapter in pdf format, 817 KB)

Reysenbach, A.L., Liu, Y., Banta, A.B., Beveridge, T.J., Kirshtein, J.D., Schouten, S., Tivey, M.K., Von Damm, K.L., and Voytek, M.A., 2006, A ubiquitous thermoacidophilic archaeon from deep-sea hydrothermal vents: Nature, v. 442, no. 7101, p. 444 - 447, doi:10.1038/nature04921. (on-line abstract of journal article)

Risley, J., and Hay, L.E., 2006, eds. Joint 8th Federal Interagency Sedimentation Conference and 3rd Federal Interagency Hydrologic Modeling Conference, April 2-6, 2006, Reno, Nevada.

Ritter, K., Aiken, G.R., Ranville, J.F., Bauer, M., and MacCalady, D.L., 2006, Evidence for the aquatic binding of arsenate by natural organic matter-suspended Fe(III): Environmenal Science and Technology, v. 40, no. 17, p. 5380-5387. (on-line abstract of journal article)

Rosenberry, D.O., Glaser, P.H., 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. (on-line abstract of journal article)

Rosenberry, D.O. and Menheer, M.A., 2006, A system for calibrating seepage meters used to measure flow between ground water and surface water: U.S. Geological Survey Scientific Investigations Report 2006-5053, 21p. (on-line abstract or on-line report in pdf format, 1061KB)

Rostad, C.E., 2006, Differentiation of commercial fuels based on polar components using negative electrospray ionization/mass spectrometry: Environmental Forensics, v. 7, no. 1, p. 5-14. (on-line abstract of journal article)

Saffer, D.M. and Bekins, B.A., 2006, An evaluation of factors influencing pore pressure in accretionary complexes: Implications for taper angle and wedge mechanics: Journal of Geophysical Research, v. 111, no. B4, B04101, doi:10.1029/2005JB003990. (on-line abstract of journal article)

Sanford, W.E., Caine, J.S., Wilcox, D.A., McWreath, H.C., and Nicholas, J.R., 2006, Research opportunities in interdisciplinary ground-water science in the U.S. Geological Survey: U.S. Geological Survey Circular 1293, 21 p. (on-line abstract or on-line report in pdf format, 1.9 MB)

Sanz, E. and Voss, C.I., 2006, Inverse modeling for seawater intrusion in coastal aquifers: Insights about parameter sensitivities, variances, correlations and estimation procedures derived from the Henry problem: Advances in Water Resources v. 29, no. 3, p. 439-457. (on-line abstract of journal article)

Savoie, J.G., Smith, R.L., Kent, D.B., Hess, K.M., LeBlanc, D.R., and Barber, L.B., 2006, Ground-water-quality data for a treated-wastewater plume undergoing natural restoration, Ashumet Valley, Cape Cod, Massachusetts, 1994-2004: U.S. Geological Survey Data Series 198, 1 CD-ROM (on-line abstract and to download files)

Schemel, L.E., Cox, M.H., Runkel, R.L., Kimball, B.A., 2006, Multiple injected and natural conservative tracers quantify mixing in a stream confluence affected by acid mine drainage near Silverton, Colorado: Hydrological Processes, v. 20, no. 13, p. 2727-2743. (on-line abstract or on-line article in pdf format - published on-line in 2006 by John Wiley & Sons as a U.S. government work in the public domain)

Schenk, E.R. and Rybicki, N.B., 2006, Exploring causes of a seagrass transplant failure in the Potomac River (Virginia): Ecological Restoration, v. 24, no. 2, p. 116-118.

Scholl, M., Cozzarelli, I., and Christenson, S., 2006, Recharge processes drive sulfate reduction in an alluvial aquifer contaminated with landfill leachate: Journal of Contaminant Hydrology, v. 86, p. 239-261. (on-line abstract of journal article)

Schot, P., and Winter T., 2006, Groundwater-surface water interactions in wetlands for integrated water resources management (editorial): Journal of Hydrology, v. 320, p. 261-263.

Schuster, P.F., 2006, Introduction, in Schuster, P.F., ed., 2006, Water and sediment quality in the Yukon River Basin, Alaska, during water year 2004: U.S. Geological Survey Open-File Report 2006-1258, chapt 1, p. 1-3. (on-line chapter in pdf format)

Schuster, P.F., ed., 2006, Water and sediment quality in the Yukon River Basin, Alaska, during water year 2004: U.S. Geological Survey Open-File Report 2006-1258, 82 p. (on-line overview or on-line report in pdf format, 13.8 MB)

Schuster, P.F., and Reddy, M.M., 2006, Sediment concentration and percent organic matter (OM), in Schuster, P.F., ed., Water and sediment quality in the Yukon River Basin, Alaska, during water year 2002: U.S. Geological Survey Report 2006-1258, chapt. 9, p. 58-59. (on-line chapter in pdf format)

Schuster, P. F., and Reddy, M.M., 2006, Particulate carbon (PC) and particulate nitrogen, (PN), in Schuster, P.F., ed., Water and sediment quality in the Yukon River Basin, Alaska, during water year 2002: U.S. Geological Survey Report 2006-1258, chapt. 10, p. 60-61. (on-line chapter in pdf format)

Seabaugh, J.L., Dong, H., Kukkadapu, R.K., Eberl, D.D., Morton, J. P., and Kim, J., 2006, Microbial reduction of Fe(III) in the Fithian and Muloorina illites: Contrasting extents and rates of bioreduction: Clays and Clay Minerals, v. 54, no. 1, p. 67-79. (on-line abstract of journal article)

Seitzinger, S., Harrison, J.A., Böhlke, J.K., Bouwman, A.F.,  Lowrance, R., Peterson, B., Tobias, C., and Van Drecht, G., 2006, Denitrification across landscapes and waterscapes: A synthesis: Ecological Applications, v. 16, p. 2064–2090. (on-line abstract of journal article)

Sheibley, R.W., Duff, J.H., Jackman, A.P., Triska, F.J., Warren, E., and Godsy, E.M., 2006, Nitrate reduction in sediment perfusion cores from Pool 8, upper Mississippi River, La Crosse, Wisconsin, USA: Verhandlungen Internationale Vereinigung fur Theoretische und Angewandte Limnologie, v. 29, p. 1,289-1,295.

Simões, F.J., and Yang, C.T., 2006, Sedimentation modeling for rivers and reservoirs, in Yang, C.T., ed., Erosion and Sedimentation Manual: U.S. Bureau of Reclamation, Technical Service Center, Denver, CO., chapter 5, p. 5-1 to 5-93. (on-line chapter in pdf format, 3281 KB)

Smith, F.A., and Betancourt, J.L., 2006, Predicting woodrat (Neotoma ) responses to anthropogenic warming from studies of the paleomidden record: Journal of Biogeography, v. 33, no. 12, p. 2,061-2,076. (on-line abstract of journal article)

Smith, L.K., Voytek, M.A., Böhlke, J. K., and Harvey, J.W., 2006, Denitrification in nitrate-rich streams: application of N₂:Ar and ¹⁵N-tracer methods in intact cores: Ecological Applications, v. 16, p. 2191-2207. (on-line abstract of journal article)

Smith, R.L., Baumgartner, L.K., Miller, D.N., Repert, D.A., and Böhlke, J.K., 2006, Assessment of nitrification potential in ground water using short-term, single-well injection experiments: Microbial Ecology, v. 51, no. 1, p. 22-35. (on-line abstract of journal article)

Snyder, M., L. Kueppers, L. Sloan, D.Cayan, et al., 2006, Regional Climate effects of the irrigation and urbanization in the western United States: A model Intercomparison. PIER Project Report, CEC-500-2006-031, 35 p. (on-line report in pdf format, 1.7 MB)

Solomon, D.K., Cook, P.G., and Plummer, L.N., 2006, Models of groundwater ages and residence times: Use of Chlorofluorocarbons in Hydrology: A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 6, p. 73-88.

Solomon, D.K., Plummer, L.N., Busenberg, E., and Cook, P.G., 2006, Practical applications of CFCs in hydrological investigations: Use of Chlorofluorocarbons in Hydrology: A Guidebook, International Atomic Energy Agency (IAEA) STI/PUB/1238, (ISBN 92-0-100805-8), chapt. 7, p. 89-104.

Stannard, D.I, and Weltz, M.A., 2006, Partitioning evapotranspiration in sparsely vegetated rangeland using a portable chamber: Water Resources Research, v. 42, doi:10.1029/2005WR004251. (on-line abstract or on-line journal article in pdf format, 657 KB, published 2006 by American Geophysical Union, not subject to U.S. copyright)

Stolz, J.F., Basu, P., Santini, J.M., and Oremland, R.S., 2006, Arsenic and selenium in microbial metabolism: Annual Review of Microbiology, v. 60, p. 107 - 130.

Striegl, R.G. and Dornblaser, M.M.,, 2006, Dissolved gases and dissolved inorganic carbon, in Schuster, P.F., ed., 2006, Water and sediment quality in the Yukon River Basin, Alaska, during water year 2004: U.S. Geological Survey Open-File Report 2006-1258, chapt. 6, p. 45-46. (on-line chapter in pdf format)

Sturchio, N.C., Böhlke, J.K., Gu, B., Horita, J., Brown, G.M., Beloso, A. Jr., Patterson, L.J., Hatzinger, P.B., Jackson, W.A. and Batista, J.R., 2006, Stable isotopic composition of chlorine and oxygen in synthetic and natural perchlorate, Chapter 5 , in Gu, B. and Coates, J.D., eds., Perchlorate: Environmental Occurrence, Interactions and Treatment: New York, Springer, p. 93-109.

Su, Yu-Hong, Zhu, Yong-Guan, Sheng, Guangyao, and Chiou, C.T., 2006, Linear adsorption of nonionic organic compounds from water onto hydrophilic minerals: Silica and Alumina: Environmental Science and Technology, v. 40, no. 22, p. 6949-6954. (on-line abstract of journal article)

Swenson, S.C., and Milly, P.C.D., 2006, Climate model biases in seasonality of continental water storage revealed by satellite gravimetry: Water Resources Research, v. 42, no. 3, W03201, doi:10.1029/2005WR004628. (on-line abstract or on-line paper in pdf format)

Taylor, H.E., Roth, D.A., and Antweiler, R.C., 2006, Dissolved Major Cations and Trace Elements, in Schuster, P.F., ed.: Water and Sediment Quality in the Yukon River Basin, Alaska, During Water Year 2004: U.S. Geological Survey Open-File Report 2006-1258, Chapt. 4, p. 25 - 41. (on-line chapter in pdf format)

Taylor, H.E., Roth, D.A., and Antweiler, R.C., 2006, Dissolved Major Cations and Trace Elements, in Dornblaser, M.M. and Halm, D.R., eds., Water and Sediment Quality of the Yukon River and its Tributaries, from Eagle to St. Marys, Alaska, 2002-2003: U.S. Geological Survey Open-File Report 2006-1228, p. 103-133. (on-line pages in report, in pdf format)

Taylor, H.E. and Finlay, J., 2006, Nutrients, in Dornblaser, M.M. and Halm, D.R., eds., Water and Sediment Quality of the Yukon River and its Tributaries, from Eagle to St. Marys, Alaska, 2002-2003: U.S. Geological Survey Open-File Report 2006-1228, p. 75-79. (on-line pages in report, in pdf format)

Thoms, R.B., Johnson, R.L., and Healy, R.W., 2006, User's guide to the variably saturated flow (VSF) Process for MODFLOW: U.S. Geological Survey Techniques and Methods 6-A18, 58 p. (on-line abstract or on-line report in pdf fomat, 2.6 MB)

Tiedeman, C.R., and M.C. Hill, 2006, Model calibration and issues related to validation, sensitivity analysis, post-audit, uncertainty evaluation and assessment of prediction data needs, in Thangarajan, M., Groundwater: Resource Evaluation, Augmentation, Contamination, Restoration, Modeling and Management: Capital Publishing, New Delhi, Chapt. 9, p. 235-282.

Triska, F.J., 2006, 2.7.4.1 Biogeochemical Processes in River Systems: Encyclopedia of Life Support Systems, EOLSS Publishers Ltd, Oxford, UK.

Triska, F.J., Duff, J.H., Warren, E., Godsy, E.M., Jackman, A.P., and Avanzino, R.J., 2006, High and low flow nitrate distribution and its implications for nitrate retention in Navigation Pool 8, Upper Mississippi River (UMR), and in a high nitrate tributary, the Root River, USA: Verhandlungen Internationale Vereinigung für Theoretische und Angewandte Limnologie, v. 29, p. 1,729-1,735.

Triska, F.J., Pringle, C.M., Duff, J.H., Avanzino, R.J., Ramirez, A., Ardon, M., and Jackman, A.P., 2006, Soluble reactive phosphorus transport and retention in tropical, rainforest streams draining a volcanic and geothermally active landscape in Costa Rica: Long-term concentration patterns, pore water environment and response to ENSO events: Biogeochemistry, v. 81, p. 131-143. (on-line abstract of journal article)

Triska, F.J., Pringle, C.M., Duff, J.H., Avanzino, R.J., and Zellweger, G., 2006, Soluble reactive phosphorus (SRP) transport and retention in tropical, rainforest streams draining a volcanic landscape in Costa Rica: in situ amendment to streams and laboratory studies: Biogeochemistry, v. 81, p. 145-157. (on-line abstract of journal article)

Umemoto, M., Hay, L.E., Markstrom, S.L., and Leavesley, G.H., 2006, Luca: a wizard style GUI for easy and systematic multi-objective, step-wise calibration of Hydrologic models. Joint 8th Federal Interagency Sedimentation Conference abd 3rd Federal Interagency Hydrologic Modeling Conference, April 2-6, 2006, Reno, Nevada.

Van Metre, P.C., Horowitz, A.J., Mahler, B.J., Foreman, W.T., Fuller, C.C., Burkhardt, M.R., Elrick, K.A., Furlong, E.T., Skrobialowski, S., Smith, J.J., Wilson, J.T., and Zaugg, S.D., 2006, The impact of Hurricanes Katrina and Rita on the chemistry of bottom sediments in Lake Pontchartrain, Louisiana, USA: Environmental Science and Technology, v. 40, p. 6894-6902. (on-line abstract of journal article)

Verplanck, P.L., Nordstrom, D.K., and McCleskey, R.B., 2006, Questa baseline and pre-mining ground-water quality investigation. 20. Water chemistry of the Red River and selected seeps, tributaries and precipiation, Taos County, New Mexico, 2000-2004: U.S. Geological Survey Scientific Investigations Report 2006-5028, 139 p. (on-line abstract or on-line report in pdf format, 3.1 MB

Viger, R.J., and Leavesley, G.H., 2006, The GIS Weasel User's Manual: U.S. Geological Survey Techniques and Methods, Book 6, Chapt. B4, 201 p. (on-line abstract or on-line report in pdf format, 15 MB)

Wallenstein, M.D.,  Myrold, D.D., Firestone, M.,, and Voytek, M.A., 2006, Environmental controls on denitrifying communities and denitrification rates: Insights from molecular methods: Ecological Applications, v. 16, p. 2143-2152. (on-line abstract of journal article)

Wankel, S.D., Kendall, C., Francis, C.A., and Paytan, A., 2006, Nitrogen sources and cycling in the San Francisco Bay estuary: A nitrate dual isotopic composition approach: Limnology and Oceanography, v. 51, p. 1,654-1,664. (on-line abstract of journal article)

Warren, E., Godsy, E.M., Duff, J.H., Triska, F.J., and Jackman, A.P., 2006, Nitrate reduction and microbial numbers in upper Mississippi River sediments, Pool 8, La Crosse, Wisconsin, USA: Verhandlungen Internationale Vereinigung fur Theoretische und Angewandte Limnologie, v. 29, p. 1,578-1,582.

Warren, Ean, Prudic, D.E., and Godsy, E.M., 2006, Changes in Microbial Activity, in Green, J.M., (ed.), The effectiveness of Cattlemans detention basin, South Lake Tahoe, California: U.S. Geological Survey Scientific Investigations Report 2006-5259, p. 37-48. (on-line abstract or on-line report in pdf format, 8 MB)

Webb, R.H., 2006, A grand enigma -- Review of "Grand Canyon: Solving the Earth's Grandest Puzzle": American Scientist, v. 194, p. 183-184. (on-line book review)

Webb, R.H., and Leake, S.A., 2006, Ground-water surface-water interactions and long-term change in riverine riparian vegetation in the southwestern United States: Journal of Hydrology, v. 320, p. 302-323. (on-line abstract of journal article)

Webb, R.M.T., Linard, J.I., and Wieczorek, M.E., 2006, The Water, Energy, and Biogeochemical Model (WEBMOD): A TOPMODEL application developed within the Modular Modeling System: Proceedings of the 3rd Federal Interagency Hydrologic Modeling Conference, Reno, Nevada, April 2-6, 2006, ISBN 0-9779007-0-3. (on-line paper in pdf format, 76 KB)

Webb, S.M., Fuller, C.C., Tebo, B.M., and Bargar, J.R., 2006, Determination of uranyl incorporation into biogenic manganese oxides using x-ray absorption spectroscopy and scattering: Environmental Science and Technology, v. 40, p. 771-777. (on-line abstract of journal article)

Weeks, E.P., 2006, R.W. Stallman (1924-1977) - an underappreciated contributor to hydrogeology: Ground Water, v. 44, no. 4, p. 618.

Welch, A.H., Oremland, R.S., Davis, J.A., and Wilkins, S.A., 2006, Arsenic in groundwater within the CalFed solution area: Current understanding of research needs: San Francisco Estuary and Watershed Science, v. 4, no. 2, 32p. (on-line abstract and to down-load paper in pdf format)

Welch, A.H., Stollenwerk, K.G., Breit, G.N., Foster, A.L., Yount, J.C., Whitney, J.W., Uddin, M.N., Alam, M.M., and Islam, M.S., 2006, Attenuation of arsenic in Bangladesh sediments—Implications for ground-water development, in Naidu, R., Smith, E., Owens, G., Bhattacharya, P., and Nadebaum, P., eds., Managing arsenic in the environment - From soil to human health: Collingwood, Australia, CSIRO Publishing, p. 363-377.

Westerling, A.L., H.G. Hidalgo, D.R. Cayan, and T.W. Swetnam, 2006,Warming and earlier spring increase Western U.S. Forest Wildfire Activity: Science, 313, 940-943. (on-line abstract of journal article)

White, A.F., Schulz, M.S., Vivit, D.V., Blum, A.E., and Stonestrom, D.A., 2006, Controls on pore water solutes: An approach for distinguishing between biogenic and lithogenic processes: Journal of Geochemical Exploration, v. 88, p. 363-366. (on-line abstract of journal article)

Wickland, K.P., Striegl, R.G., Neff, J.C., and Sachs, T., 2006, Effects of permafrost melting on CO₂ and CH₄ exchange of a poorly drained black spruce lowland: Journal of Geophysical Research, v. 111, G02011, doi:10.1029/2005JG000099. (on-line abstract of journal article)

Wieczorek, G.F., Eaton, L.S., Yanosky, T.M., and Turner, E.J., 2006, Hurricane-induced landslide activity on an alluvial fan along Meadow Run, Shenandoah Valley, Virginia (eastern USA): Landslides, v. 3, no. 2, p. 95 - 106.

Wilcox, A.C., Nelson, J.M., and Wohl, E.E., 2006, Flow resistance dynamics in step-pool channels: 2. Partitioning between grain, spill, and woody debris resistance: Water Resources Research, v. 42, W05419, doi:10.1029/2005WR004278. (on-line abstract of journal article)

Winfield, K.A., Nimmo, J.R., Izbicki, J.A., and Martin, P.M., 2006, Resolving structural influences on water-retention properties of alluvial deposits: Vadose Zone Journal, v. 5, p. 706-719, doi:10.2136/vzj2005.0088 (on-line abstract of journal article)

Winograd, I. J., Landwehr, J. M., Coplen, T.B., Sharp, W.D., Riggs, A.C., Ludwig, K.R., and Kolesar, P.T., 2006, Devils Hole, Nevada, δ¹⁸O Record Extended to the Mid-Holocene: Quaternary Research, v. 66, no. 2, p. 202-212. doi:10.1016/j.yqres.2006.06.003 (on-line abstract of journal article)

Winston, R.B., 2006, GoPhast: A Graphical User Interface for PHAST: U.S. Geological Survey Techniques and Methods 6-A20, 98 p. (on-line abstract or on-line report in pdf format, 1.4 MB)

Winston, R.B., 2006, Ground-water management process in the MODFLOW GUI, in Poeter, E., Hill, M.C. Zheng, C., eds., MODFLOW and More 2006, Managing Ground-Water Systems: Proceedings v. 2, International Ground Water Modeling Center, Colorado School of Mines, Golden, CO, p. 430-431.

Winston, R.B., 2006, GoPhast: A graphical user interface for PHAST, in Poeter, E., Hill, M.C. Zheng, C., eds., MODFLOW and More 2006, Managing Ground-Water Systems: Proceedings v. 1, International Ground Water Modeling Center, Colorado School of Mines, Golden, CO, p. 375-378.

Woodhouse, C.A., Gray, S.T., and Meko, D.M., 2006, Updated streamflow reconstructions for the upper Colorado River basin: Water Resources Research, v. 42, doi:10.1029/2005WR004455. (on-line abstract of journal article)

Wörman, A., Packman, A.I., Marklund, L., Harvey, J.W., Stone, S.H., 2006, Exact three-dimensional spectral solution to surface-groudnwater interactions with arbitrary surface topography: Geophysical Research Letters, v. 33, L07402, doi:10.1029/2006GL025747 (on-line abstract of journal article)

Wright, S.A. and Gartner, J.W., 2006, Measurement of velocity profiles and suspended-sediment concentrations in a Colorado River eddy during high flow, Proceedings 8^th Federal Interagency Sedimentation Conference, April 2-6, 2006, Reno NV. (on-line article in pdf format)

Yanites, B.J., Webb, R.H., Griffiths, P.G., and Magirl, C.S., 2006, Debris-flow deposition and reworking by the Colorado River in Grand Canyon, Arizona: Water Resources Research, v. 42, W11411, doi:10.1029/2005WR004847. (on-line abstract of journal article)

Zhang, G., Dong, H., Jiang, H., Xu, Z., and Eberl, D.D., 2006, Unique microbial community in drilling fluids from Chinese continental scientific drilling: Geomicrobiological Journal, v. 23, p. 499-514. (on-line abstract of journal article)

Zheng, C., Poeter, E., Hill, M.C., and Doherty, J., 2006, Foreword to special issue -- Understanding through modeling: Ground Water, v. 44, p. 769-770. (on-line forward in pdf format, 45 KB)