Colorado Water Science Center

Publications

Filter Total Items: 620
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Year Published: 2019

Remote sensing of river flow in Alaska—New technology to improve safety and expand coverage of USGS streamgaging

The U.S. Geological Survey monitors water level (water surface elevation relative to an arbitrary datum) and measures streamflow in Alaska rivers to compute and compile river flow records for use by water resource planners, engineers, and land managers to design infrastructure, manage floodplains, and protect life, property, and aquatic resources...

Conaway, Jeff; Eggleston, John R.; Legleiter, Carl J.; Jones, John W.; Kinzel, Paul J.; Fulton, John W.
Conaway, J.S., Eggleston, J., Legleiter, C.J., Jones, J.W., Kinzel, P.J., and Fulton, J.W., 2019, Remote sensing of river flow in Alaska—New technology to improve safety and expand coverage of USGS streamgaging: U.S. Geological Survey Fact Sheet 2019-3024, 4 p., https://doi.org/10.3133/fs20193024.

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Year Published: 2019

Comment on “Particle fluxes in groundwater change subsurface rock chemistry over geologic time”

Over the last decade, studies at the Shale Hills Critical Zone Observatory (Shale Hills) have greatly expanded knowledge of weathering in previously understudied, shale-mantled terrains, as well as Earth's Critical Zone as a whole. Among the many discoveries made was the importance of redistribution and losses of micron-sized...

Bern, Carleton R.; Tiffany Yesavage

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Year Published: 2019

Groundwater-Level Elevations in the Denver Basin Bedrock Aquifers of Elbert County, Colorado, 2015–18

Public and domestic water supplies in Elbert County, Colorado, rely on groundwater withdrawals from five bedrock aquifers in the Denver Basin aquifer system (lower Dawson, upper Dawson, Denver, Arapahoe, and Laramie-Fox Hills) to meet water demands. Increased pumping in response to regional population growth and development has led to declining...

Penn, Colin A.; Everett, Rhett R.
Penn, C.A., and Everett, R.R., 2019, Groundwater-level elevations in the Denver Basin bedrock aquifers of Elbert County, Colorado, 2015–18: U.S. Geological Survey Scientific Investigations Report 2019–5014, 50 p., https://doi.org/10.3133/sir20195014.

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Year Published: 2019

Improved enrichment factor calculations through principal component analysis: Examples from soils near breccia pipe uranium mines, Arizona, USA

The enrichment factor (EF) is a widely used metric for determining how much the presence of an element in a sampling media has increased relative to average natural abundance because of human activity. Calculation of an EF requires the selection of both a background composition and a reference element, choices that can strongly influence the...

Bern, Carleton R.; Walton-Day, Katie; Naftz, David L.

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Year Published: 2019

Upgrades to a Fortran program for estimating stream transit losses of reusable water, El Paso and Pueblo Counties, Colorado

In 2016, the U.S. Geological Survey, in cooperation with Pikes Peak Regional Water Authority and the Colorado Water Conservation Board, began a study to modernize a Fortran transit-loss accounting program developed by the U.S. Geological Survey to estimate net reusable flows in Fountain and Monument Creeks in El Paso and Pueblo Counties, Colorado...

Colarullo, Susan J.; Miller, Lisa D.
Colarullo, S.J., and Miller, L.D., 2019, Upgrades to a Fortran program for estimating stream transit losses of reusable water, El Paso and Pueblo Counties, Colorado: U.S. Geological Survey Scientific Investigations Report 2018–5163, 21 p., https://doi.org/10.3133/sir20185163.

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Year Published: 2018

Real-time streambed scour monitoring at two bridges over the Gunnison River in western Colorado, 2016–17

The Colorado Department of Transportation maintains roadways crossing over large streams and rivers where sediment transport and channel alignment changes can affect the structural stability of bridges. Structural stability during and immediately after peak streamflow can be assessed by measuring streambed scour; however, placing personnel or...

Henneberg, Mark F.
Henneberg, M.F., 2018, Real-time streambed scour monitoring at two bridges over the Gunnison River in western Colorado, 2016–17: U.S. Geological Survey Scientific Investigation Report 2018–5123, 15 p., https://doi.org/10.3133/sir20185123.

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Year Published: 2018

Quantifying uncertainty in simulated streamflow and runoff from a continental-scale monthly water balance model

One important component of continental-scale hydrologic modeling is quantifying the level of uncertainty in long-term hydrologic simulations and providing a range of possible simulated streamflow and/or runoff values for gaged and ungaged locations. In this paper, uncertainty was quantified for simulated streamflow and runoff generated from a...

Bock, Andrew R.; Farmer, William H.; Hay, Lauren E.

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Year Published: 2018

Geometric versus anemometric surface roughness for a shallow accumulating snowpack

When applied to a snow-covered surface, aerodynamic roughness length, z0, is typically considered as a static parameter within energy balance equations. However, field observations show that z0 changes spatially and temporally, and thus z0 incorporated as a dynamic parameter may greatly improve models. To evaluate methods...

Sanow, Jessica E.; Fassnacht, Steven R.; Kamin, David J.; Sexstone, Graham A.; Bauerle, William L.; Oprea, Iuliana

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Year Published: 2018

Contaminants of emerging concern in the environment: Where we have been and what does the future hold?

In 1962, Rachel Carson’s book Silent Spring alerted the nation to the dangers of manmade chemicals and indiscriminate use of pesticides. DDT was the culprit and its use threatened a variety of wildlife, including the national bird, bald eagles. In 1969, pressured by scientists and the public, the United States banned almost all uses of DDT;...

Battaglin, William A.; Kolpin, Dana W.; Furlong, Edward T.; Glassmeyer, Susan; Blackwell, Brett R.; Corsi, Steven; Meyer, Michael T.; Bradley, Paul M.
Battaglin, W.A., Koplin, D.W., Furlong, E.T., Glassmeyer, S., Blackwell, B., Corsi, S.R., Meyer, M. T., and Bradley, P.M., 2018, Contaminants of Emerging Concern in the Environment: Where We Have Been and What Does the Future Hold?: Water Resources IMPACT, vol. 20, no. 6, p. 8-11. https://www.awra.org/impact/

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Year Published: 2018

Estimating metal concentrations with regression analysis and water-quality surrogates at nine sites on the Animas and San Juan Rivers, Colorado, New Mexico, and Utah

The purpose of this report is to evaluate the use of site-specific regression models to estimate metal concentrations at nine U.S. Geological Survey streamflow-gaging stations on the Animas and San Juan Rivers in Colorado, New Mexico, and Utah. Downstream users could use these regression models to determine if metal concentrations are elevated and...

Mast, M. Alisa
Mast, M.A., 2018, Estimating metal concentrations with regression analysis and water-quality surrogates at nine sites on the Animas and San Juan Rivers, Colorado, New Mexico, and Utah: U.S. Geological Survey Scientific Investigations Report 2018–5116, 68 p., https://doi.org/10.3133/sir20185116.

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Year Published: 2018

Groundwater chemistry and water-level elevations in bedrock aquifers of the Piceance and Yellow Creek watersheds, Rio Blanco County, Colorado, 2013–16

The Piceance and Yellow Creek watersheds in Rio Blanco County, Colorado, are known to contain important energy resources (oil shale and natural gas) and mineral resources (nahcolite). The primary sources of fresh groundwater in the Piceance and Yellow Creek watersheds are bedrock aquifers in the Uinta and Green River Formations. The aquifers are...

Thomas, Judith C.; McMahon, Peter B.
Thomas, J.C., and McMahon, P.B., 2018, Groundwater chemistry and water-level elevations in bedrock aquifers of the Piceance and Yellow Creek watersheds, Rio Blanco County, Colorado, 2013–16: U.S. Geological Survey Scientific Investigations Report 2018–5142, 26 p., https://doi.org/10.3133/sir20185142.

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Year Published: 2018

Understanding the captivity effect on invertebrate communities transplanted into an experimental stream laboratory

Little is known about how design and testing methodologies affect the macroinvertebrate communities that are held captive in mesocosms. To address this knowledge gap, we conducted a 32‐d test to determine how seeded invertebrate communities changed once removed from the natural stream and introduced to the laboratory. We evaluated larvae survival...

Schmidt, Travis S.; Rogers, Holly; Miller, Janet L.; Mebane, Christopher A.; Balistrieri, Laurie S.
Schmidt, T. S., Rogers, H. A., Miller, J. L., Mebane, C. A. and Balistrieri, L. S. (2018), Understanding the captivity effect on invertebrate communities transplanted into an experimental stream laboratory. Environ Toxicol Chem, 37: 2820-2834. doi:10.1002/etc.4237