Publications
Below is a list of available Colorado Water Science Center publications and published products.
Filter Total Items: 754
Effects of snowmobile use on snowpack chemistry in Yellowstone National Park, 1998
Snowmobile use in Yellowstone National Park has increased substantially in the past three decades. In areas of greatest snowmobile use, elevated levels of by-products of gasoline combustion such as ammonium and benzene have been detected in snowpack samples. Annual snowpacks and snow-covered roadways trap deposition from local and regional atmospheric emissions.
Snowpack samples representing mo
Authors
George P. Ingersoll
Fish-community assessment in Gore Creek, Colorado, 1998
No abstract available.
Authors
Kirby H. Wynn
Comparison of two approaches for determining ground-water discharge and pumpage in the lower Arkansas River Basin, Colorado, 1997-98
In March 1994, the Colorado Division of Water Resources (CDWR) adopted ?Rules Governing the Measurement of Tributary Ground Water Diversions Located in the Arkansas River Basin? (Office of the State Engineer, 1994); these initial rules were amended in February 1996 (Office of the State Engineer, 1996). The amended rules require users of wells that divert tributary ground water to annually report t
Authors
Russell G. Dash, Brent M. Troutman, Patrick Edelmann
Trends in precipitation and stream-water chemistry in the northeastern United States, water years 1984-96
Trends in precipitation and stream-water chemistry during water years 1984-96 were examined at eight precipitation monitoring sites and five nearby streams operated by the U.S. Geological Survey in the northeastern United States. The statistical analyses indicate the following: 1)Stream-water sulfate (SO4) concentrations decreased at seven of eight precipitation monitoring sites and in each of fiv
Authors
D. W. Clow, Alisa Mast
Characterization of selected biological, chemical, and physical conditions at fixed sites in the Upper Colorado River basin, Colorado, 1995-98
Biological community samples were collected at 15 sites in the Upper Colorado River Basin (UCOL) in Colorado as part of the National Water-Quality Assessment (NAWQA) Program. Sites sampled in two physiographic provinces, the Southern Rocky Mountains and the Colorado Plateau, represented agriculture, mining, urban and recreation, and mixed land uses and background conditions. Nine measures of water
Authors
Jeffrey R. Deacon, Scott V. Mize, Norman E. Spahr
Streamflow characteristics for the Black Hills of South Dakota, through water year 1993
This report summarizes streamflow records and describes streamflow characteristics for streams draining the Black Hills of western South Dakota. Monthly and annual streamflow records are tabulated for all available years of record, through water year 1993, for 129 continuous-record gaging stations, including 111 stations for which records of daily flow are available and 18 stations for which only
Authors
L.D. Miller, D.G. Driscoll
Low-flow water-quality characterization of the Gore Creek watershed, upper Colorado River basin, Colorado, August 1996
The Upper Colorado River Basin (UCOL) is one of 59 National Water-Quality Assessment (NAWQA) study units designed to assess the status and trends of the Nation?s water quality (Leahy and others, 1990). The UCOL study unit began operation in 1994, and surface-water-quality data collection at a network of 14 sites began in October 1995 (Apodaca and others, 1996; Spahr and others, 1996). Gore Creek,
Authors
Kirby H. Wynn, Norman E. Spahr
Predictive double-layer modeling of metal sorption in mine-drainage systems
Previous comparison of predictive double-layer modeling and empirically derived metal-partitioning data has validated the use of the double-layer model to predict metal sorption reactions in iron-rich mine-drainage systems. The double-layer model subsequently has been used to model data collected from several mine-drainage sites in Colorado with diverse geochemistry and geology. This work demonstr
Authors
K. S. Smith, J. F. Ranville, D.L. Macalady
One-Dimensional Transport with Inflow and Storage (OTIS): A Solute Transport Model for Streams and Rivers
OTIS is a mathematical simulation model used to characterize the fate and transport of water-borne solutes in streams and rivers. The governing equation underlying the model is the advection-dispersion equation with additional terms to account for transient storage, lateral inflow, first-order decay, and sorption. This equation and the associated equations describing transient storage and sorption
Authors
Robert L. Runkel
Trace elements in streambed sediment and fish liver at selected sites in the Upper Colorado River basin, Colorado 1995-96
Trace elements were analyzed in streambed-sediment samples collected from 16 sites and in fish-liver samples collected from 14 sites in the Upper Colorado River Basin in Colorado as part of the National Water-Quality Assessment program. Sites sampled represented agricultural, mining, mixed, and urban/recreation land uses and background conditions. The results for 15 trace elements in streambed-sed
Authors
J. R. Deacon, V. C. Stephens
Water-quality and biological community characterization at selected sites on the Eagle River, Colorado, September 1997 and February 1998
No abstract available.
Authors
Jeffrey R. Deacon, Norman E. Spahr
Distribution and concentrations of selected organochlorine pesticides and PCB's in streambed sediment and whole-body fish in the Upper Colorado River Basin, 1995-96
No abstract available.
Authors
Verlin C. Stephens, Jeffrey R. Deacon