National Water-Quality Assessment (NAWQA) Program
More Information about Modeling
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Kauffman, Leon J., Baehr, Arthur L., Ayers, Mark A., and Stackelberg, Paul E., 2001, Effects of land use and travel time on the distribution of nitrate in the Kirkwood-Cohansey aquifer system in southern New Jersey: U.S. Geological Survey Water-Resources Investigations Report 01-4117, 49 p. Available Online
Larson, Steven J., and Gilliom, Robert J., 2001, Regression models for estimating herbicide concentrations in U.S. streams from watershed characteristics: Journal of the American Water Resources Association, vol. 37, no. 5, p. 1349-1367. doi: 10.1111/j.1752-1688.2001.tb03644.x Available Online
McMahon, P.B., 2001, Vertical gradients in water chemistry in the Central High Plains Aquifer, southwestern Kansas and Oklahoma Panhandle, 1999: U.S. Geological Survey Water-Resources Investigations Report 01-4028, 47 p. Available Online
Nolan, Bernard T., 2001, Relating nitrogen sources and aquifer susceptibility to nitrate in shallow ground waters of the United States: Ground Water, vol. 39, no. 2, p. 290-299. Available Online
Robertson, D.M., and Saad, D.A., 2001, Nutrient inputs to the Laurentian Great Lakes by source and watershed estimated using SPARROW watershed models: Journal of the American Water Resources Association, online 22Aug2011 in advance of print, 23 p. doi: 10.1111/j.1752-1688.2011.00574.x Available Online
Sauer, T.J., Alexander, R.B., Brahana, J.V., and Smith, R.A., 2001, The importance and role of watersheds in the transport of nitrogen: in Follett, R.F. and Hatfield, J.L., eds., Chapter 7 Nitrogen in the Environment: Elsevier, p. 147-181. Available Online
Wong, Charles S., Capel, Paul D., and Nowell, Lisa H., 2001, National-scale, field-based evaluation of the biota--Sediment accumulation factor model: Environmental Science & Technology, vol. 35, no. 9, p. 1709-1715. doi: 10.1021/es0016452 Available Online
Alexander, Richard B., Smith, Richard A., and Schwarz, Gregory E., 2000, Effect of stream channel size on the delivery of nitrogen to the Gulf of Mexico: Nature, vol. 403, February 17, 2000, p. 758-761. Available Online
Alexander, Richard B., Smith, Richard A., Schwarz, Gregory E., Preston, Stephen D., Brakebill, John W., Srinivasan, Raghavan, and Pacheco, Percy A., 2000, Atmospheric nitrogen flux from the watersheds of major estuaries of the United States: An application of the SPARROW watershed model: American Geophysical Union, p. 119-170.
Alpers, Charles N., Antweiler, Ronald C., Taylor, Howard E., Dileanis, Peter D., and Domagalski, Joseph L., eds., 2000, Metal transport in the Sacramento River, California, 1996-97: Volume 2: Interpretations of metal loads: U.S. Geological Survey Water-Resources Investigations Report 00-4002, 106 p. Available Online
Ator, Scott W., Denver, Judith M. and Pitchford, Ann M., 2000, Developing Landscape-Indicator Models for Pesticides and Nutrients in Streams of the Mid-Atlantic Coastal Plain : U.S. Geological Survey Fact Sheet FS-157-00, 4 p. Available Online
Black, Robert W., Haggland, Alan L., Voss, and Frank V., 2000, Predicting the probability of detecting organochlorines pesticides and polychlorinated biphenyls in stream systems on the basis of land use in the Pacific northwest, USA: Environmental Toxicology and Chemistry, vol. 19, no. 4, p. 1044-1054. doi: 10.1897/1551-5028(2000)019<1044:PTPODO>2.3.CO;2 Available Online
Brown, Larry R., and May, Jason T., 2000, Benthic macroinvertebrate assemblages and their relations with environmental variables in the Sacramento and San Joaquin River Drainages, California, 1993-1997: U.S. Geological Survey Water-Resources Investigations Report 00-4125, 25 p. Available Online
Brown, Larry R., and May, Jason T., 2000, Macroinvertebrate assemblages on woody debris and their relations with environmental variables in the lower Sacramento and San Joaquin River Drainages: Environmental Monitoring and Assessment, vol. 64, p. 311-329. doi: 10.1023/A:1006482800472 Available Online
Capel, Paul D., and Zhang, Hua, 2000, Estimation of potential loss of two pesticides in runoff in Fillmore County, Minnesota using a field-scale process-based model and a geographic information system: in Steinheimer, Thomas, R., Ross, Lisa J., and Spittler, Terry D., eds., ACS Symposium Series 175-- Agrochemical fate and movement, Chapter 12, p. 172-184.
Carpenter, Kurt D., and Waite, Ian R., 2000, Relations of habitat-specific algal assemblages to land use and water chemistry in the Willamette Basin, Oregon: Environmental Monitoring and Assessment, vol. 64, no. 1, p. 247-257. doi: 10.1023/A:1006460802772 Available Online
Clark, Gregory M., Mueller, David K., and Mast M. Alisa, 2000, Nutrient concentrations and yields in undeveloped stream basins of the United States: Journal of the American Water Resources Association, vol. 36, no. 4, August 2000, p. 849-860. doi: 10.1111/j.1752-1688.2000.tb04311.x Available Online
Cuffney, Thomas F., Meador, Michael R., Porter, Stephen D., and Gurtz, Martin E., 2000, Responses of physical, chemical, and biological indicators of water quality to a gradient of agricultural land use in the Yakima River Basin, Washington: Environmental Monitoring and Assessment, vol. 64, p. 259-270. doi: 10.1023/A:1006473106407 Available Online
Hoos, Anne B., Robinson, John A., Aycock, Robert A., Knight, Rodney, R., and Woodside, Michael D., 2000, Sources, instream transport, and trends of nitrogen, phosphorus, and sediment in the Lower Tennessee River Basin, 1980-96: U.S. Geological Survey Water-Resources Investigations Report 99-4139, 96 p. Available Online
Nolan, Bernard T., and Stoner, Jeffrey D., 2000, Nutrients in groundwaters of the conterminous United States, 1992-1995: Environmental Science and Technology, vol. 34, no. 7, p. 1156-1165. doi: 10.1021/es9907663 Available Online
Robertson, Dale M., and Richards, Kevin D., 2000, Influence of different temporal sampling strategies on estimating loads and maximum concentrations in small streams: Conference Proceedings NWQMC National Monitoring Conference 2000, Monitoring for the Millennium, p. 209-223.
Squillace, Paul J., and Moran, Michael J., 2000, Estimating the likelihood of MTBE occurrence in drinking water supplied by ground-water sources in the Northeast and Mid-atlantic regions of the United States: U.S. Geological Survey Open-File Report 00-343, 10 p. Available Online
Sullivan, Daniel J., 2000, Fish communities and their relation to environmental factors in the Eastern Iowa Basins in Iowa and Minnesota, 1996: U.S. Geological Survey Water-Resources Investigations Report 00-4194, 20 p. Available Online
Trench, Elaine C. Todd, 2000, Nutrient sources and loads in the Connecticut, Housatonic, and Thames River Basins: U.S. Geological Survey Water-Resources Investigations Report 99-4236, 66 p. Available Online
Waite, Ian R., and Carpenter, Kurt D., 2000, Associations among fish assemblage structure and environmental variables in Willamette Basin stream, Oregon: Transactions of the American Fisheries Society, vol. 129, no. 3, p. 754-770. doi: 10.1577/1548-8659(2000)129<0754:AAFASA>2.3.CO;2 Available Online
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