Publications
Below is a list of available Colorado Water Science Center publications and published products.
Filter Total Items: 820
The Cache la Poudre River, Colorado, as a drinking-water source The Cache la Poudre River, Colorado, as a drinking-water source
No abstract available.
Authors
Jim A. Collins, Lori A. Sprague
Variability of differences between two approaches for determining ground-water discharge and pumpage, including effects of time trends, Lower Arkansas River Basin, southeastern Colorado, 1998-2002 Variability of differences between two approaches for determining ground-water discharge and pumpage, including effects of time trends, Lower Arkansas River Basin, southeastern Colorado, 1998-2002
In the mid-1990s, the Colorado Division of Water Resources (CDWR) adopted rules governing measurement of tributary ground-water pumpage for the Arkansas River Basin. The rules allowed ground-water pumpage to be determined using one of two approaches?power conversion coefficient (PCC) or totalizing flowmeters (TFM). In addition, the rules allowed a PCC to be applied to the electrical...
Authors
Brent M. Troutman, Patrick Edelmann, Russell G. Dash
Distribution and mass of nitrate in the unconfined aquifer beneath the intensively cultivated area north of the Rio Grande, San Luis Valley, Colorado, 1997 through 2001 Distribution and mass of nitrate in the unconfined aquifer beneath the intensively cultivated area north of the Rio Grande, San Luis Valley, Colorado, 1997 through 2001
Current (1997?2001) and historical (1948?49, 1968?69) nitrate-concentration and water-level data collected from wells completed in the unconfined aquifer in the intensively cultivated area north of the Rio Grande in south-central Colorado were used to determine the distribution and mass of nitrate and to determine short- and long-term trends in the concentration and mass of nitrate in...
Authors
Stogner
Summary of sediment data from the Yampa river and upper Green river basins, Colorado and Utah, 1993-2002 Summary of sediment data from the Yampa river and upper Green river basins, Colorado and Utah, 1993-2002
The water resources of the Upper Colorado River Basin have been extensively developed for water supply, irrigation, and power generation through water storage in upstream reservoirs during spring runoff and subsequent releases during the remainder of the year. The net effect of water-resource development has been to substantially modify the predevelopment annual hydrograph as well as the...
Authors
John G. Elliott, Steven P. Anders
Unexpected dominance of parent-material strontium in a tropical forest on highly weathered soils Unexpected dominance of parent-material strontium in a tropical forest on highly weathered soils
Controls over nutrient supply are key to understanding the structure and functioning of terrestrial ecosystems. Conceptual models once held that in situ mineral weathering was the primary long-term control over the availability of many plant nutrients, including the base cations calcium (Ca), magnesium (Mg), and potassium (K). Recent evidence has shown that atmospheric sources of these...
Authors
Carleton R. Bern, Alan R. Townsend, G. Lang Farmer
The U.S. Geological Survey Hydrologic Benchmark Network The U.S. Geological Survey Hydrologic Benchmark Network
No abstract available.
Authors
Peter S. Murdoch, Michael R. McHale, M. Alisa Mast, David W. Clow
Sustainability of ground-water resources in the upper Arkansas River basin between Buena Vista and Salida, Colorado, 2000-2003 Sustainability of ground-water resources in the upper Arkansas River basin between Buena Vista and Salida, Colorado, 2000-2003
No abstract available.
Authors
Kenneth R. Watts
Surface water-quality and water-quantity data from selected urban runoff-monitoring sites at the Rocky Mountain Arsenal, Commerce City, Colorado, water years 1988-2004 Surface water-quality and water-quantity data from selected urban runoff-monitoring sites at the Rocky Mountain Arsenal, Commerce City, Colorado, water years 1988-2004
The U.S. Geological Survey has monitored the quality and quantity of streamflow at the Rocky Mountain Arsenal (RMA) northeast of Denver, Colorado, since the early 1990s in cooperation with the U.S. Army. This report, prepared in cooperation with the U.S. Fish and Wildlife Service, documents existing surface-water-quality conditions on the RMA. All RMA water-quality data for the Irondale...
Authors
John D. Gordon, Donald E. Schild, Joseph P. Capesius, Cecil B. Slaughter
Proceedings of the U.S. Geological Survey Fifth Biennial Geographic Information Science Workshop: March 1-5, 2004, Denver, Colorado Proceedings of the U.S. Geological Survey Fifth Biennial Geographic Information Science Workshop: March 1-5, 2004, Denver, Colorado
No abstract available.
Authors
Stephen J. Char, Jennifer B. Sieverling
Drought effects on water quality in the South Platte River Basin, Colorado Drought effects on water quality in the South Platte River Basin, Colorado
Twenty-three stream sites representing a range of forested, agricultural, and urban land uses were sampled in the South Platte River Basin of Colorado from July through September 2002 to characterize water quality during drought conditions. With a few exceptions, dissolved ammonia, Kjeldahl nitrogen, total phosphorus, and dissolved orthophosphate concentrations were similar to seasonal...
Authors
Lori A. Sprague
Authigenesis of trace metals in energetic tropical shelf environments Authigenesis of trace metals in energetic tropical shelf environments
We evaluated authigenic changes of Fe, Mn, V, U, Mo, Cd and Re in suboxic, periodically remobilized, tropical shelf sediments from the Amazon continental shelf and the Gulf of Papua. The Cd/Al, Mo/Al, and U/Al ratios in Amazon shelf sediments were 82%, 37%, and 16% less than those in Amazon River suspended sediments, respectively. Very large depletions of U previously reported in this...
Authors
E.J. Breckel, S. Emerson, Laurie S. Balistrieri