Texas Water Science Center

Publications

Scientific reports, journal articles, or general interest publications by USGS scientists in the Texas Water Science Center are listed below. Publications span from 1898 to the present.

Filter Total Items: 1,312
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Year Published: 2016

A python framework for environmental model uncertainty analysis

We have developed pyEMU, a python framework for Environmental Modeling Uncertainty analyses, open-source tool that is non-intrusive, easy-to-use, computationally efficient, and scalable to highly-parameterized inverse problems. The framework implements several types of linear (first-order, second-moment (FOSM)) and non-linear uncertainty analyses...

White, Jeremy; Fienen, Michael N.; Doherty, John E.

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Year Published: 2016

Occurrence and concentrations of selected trace elements and halogenated organic compounds in stream sediments and potential sources of polychlorinated biphenyls, Leon Creek, San Antonio, Texas, 2012–14

The Texas Department of State Health Services issued fish consumption advisories in 2003 and 2010 for Leon Creek in San Antonio, Texas, based on elevated concentrations of polychlorinated biphenyls (PCBs) in fish tissues. The U.S. Geological Survey (USGS) measured elevated PCB concentrations in stream-sediment samples collected during 2007–9...

Wilson, Jennifer T.
Wilson, J.T., 2016, Occurrence and concentrations of selected trace elements and halogenated organic compounds in stream sediments and potential sources of polychlorinated biphenyls, Leon Creek, San Antonio, Texas, 2012–14: U.S. Geological Survey Scientific Investigations Report 2016–5039, 99 p., http://dx.doi.org/10.3133/sir20165039.

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Year Published: 2016

Source, variability, and transformation of nitrate in a regional karst aquifer: Edwards aquifer, central Texas.

Many karst regions are undergoing rapid population growth and expansion of urban land accompanied by increases in wastewater generation and changing patterns of nitrate (NO3−) loading to surface and groundwater. We investigate variability and sources of NO3− in a regional karst aquifer system, the Edwards aquifer of central Texas...

Musgrove, MaryLynn; Opsahl, Stephen P.; Mahler, Barbara J.; Herrington, Chris; Sample, Thomas; Banta, John

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Year Published: 2016

Changes between early development (1930–60) and recent (2005–15) groundwater-level altitudes and dissolved-solids and nitrate concentrations In and near Gaines, Terry, and Yoakum Counties, Texas

Llano Estacado Underground Water Conservation District, Sandy Land Underground Water Conservation District, and South Plains Underground Water Conservation District manage groundwater resources in a part of west Texas near the Texas-New Mexico State line. Declining groundwater levels have raised concerns about the amount of available groundwater...

Thomas, Jonathan V.; Teeple, Andrew ; Payne, Jason ; Ikard, Scott
Thomas, J.V., Teeple, A.P., Payne, J.D., and Ikard, Scott, 2016, Changes between early development (1930–60) and recent (2005–15) groundwater-level altitudes and dissolved-solids and nitrate concentrations in and near Gaines, Terry, and Yoakum Counties, Texas: U.S. Geological Survey Scientific Investigations Map 3355, 2 sheets, pamphlet, http://dx.doi.org/10.3133/sim3355.

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Year Published: 2016

U.S. Geological Survey response to flooding in Texas, May–June 2015

As a Federal science agency within the Department of the Interior, the U.S. Geological Survey (USGS) collects and disseminates streamflow stage and discharge information along with other types of water information as a major part of its Water mission area. Data collected at USGS streamflow-gaging stations (hereinafter referred to as “streamgages...

East, Jeffery W.
East, J.W., 2016, U.S. Geological Survey response to flooding in Texas, May–June 2015: U.S. Geological Survey Fact Sheet 2016–3027, 4 p., http://dx.doi.org/10.3133/fs20163027.

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Year Published: 2016

Simulation of streamflow and the effects of brush management on water yields in the Double Mountain Fork Brazos River watershed, western Texas 1994–2013

The U.S. Geological Survey, in cooperation with the City of Lubbock and the Texas State Soil and Water Conservation Board, developed and calibrated a Soil and Water Assessment Tool watershed model of the Double Mountain Fork Brazos River watershed in western Texas to simulate monthly mean streamflow and to evaluate the effects of brush management...

Harwell, Glenn R.; Stengel, Victoria G.; Bumgarner, Johnathan R.
Harwell, G.R., Stengel, V.G., and Bumgarner, J.R., 2016, Simulation of streamflow and the effects of brush management on water yields in the Double Mountain Fork Brazos River watershed, western Texas 1994–2013: U.S. Geological Survey Scientific Investigations Report 2016–5032, 39 p., http://dx.doi.org/10.3133/sir20165032.

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Year Published: 2016

Arsenic and radionuclide occurrence and relation to geochemistry in groundwater of the Gulf Coast Aquifer System in Houston, Texas, 2007–11

The U.S. Geological Survey (USGS), in cooperation with the City of Houston, began a study in 2007 to determine concentrations, spatial extent, and associated geochemical conditions that might be conducive for mobility and transport of selected naturally occurring trace elements and radionuclides in the Gulf Coast aquifer system in Houston, Texas....

Oden, Jeannette H.; Szabo, Zoltan
Oden, J.H., and Szabo, Zoltan, 2015, Arsenic and radionuclide occurrence and relation to geochemistry in groundwater of the Gulf Coast Aquifer System in Houston, Texas, 2007–11: U.S. Geological Scientific Investigations Report 2015–5071, 105 p., 4 apps., http://dx.doi.org/10.3133/sir20155071.

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Year Published: 2016

New insights into the Edwards Aquifer—Brackish-water simulation, drought, and the role of uncertainty analysis

The Edwards aquifer is an important water resource in south-central Texas, providing water for residents, businesses, and ecosystems. The aquifer is a highly complex karst system characterized by areas of rapid groundwater flow, faulted and fractured Cretaceous-age rocks, and multiple water-quality zones. Karst aquifer systems include soluble...

Foster, Linzy K.; White, Jeremy T.
Foster, L.K., and White, J.T., 2016, New insights into the Edwards aquifer—Brackish-water simulation, drought, and the role of uncertainty analysis: U.S. Geological Survey Fact Sheet 2016–3002, 6 p., http://dx.doi.org/10.3133/fs20163002.

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Year Published: 2016

Fish assemblage composition and mapped mesohabitat features over a range of streamflows in the Middle Rio Grande, New Mexico, winter 2011-12, summer 2012

This report documents differences in the mapped spatial extents and physical characteristics of in-channel fish habitat evaluated at the mesohabitat scale during winter 2011–12 (moderate streamflow) and summer 2012 (low streamflow) at 15 sites on the Middle Rio Grande in New Mexico starting about 3 kilometers downstream from Cochiti Dam and...

Pearson, Daniel K.; Braun, Christopher L.; Moring, J. Bruce
Pearson, D.K., Braun, C.L., and Moring, J.B., 2015, Fish assemblage composition and mapped mesohabitat features over a range of streamflows in the Middle Rio Grande, New Mexico, winter 2011–12, summer 2012: U.S. Geological Survey Scientific Investigations Map 3350, 7 sheets, http://dx.doi.org/10.3133/sim3350.

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Year Published: 2015

Simulation of the effects of different inflows on hydrologic conditions in Lake Houston with a three-dimensional hydrodynamic model, Houston, Texas, 2009–10

Lake Houston, an important water resource for the Houston, Texas, area, receives inflows from seven major tributaries that compose the San Jacinto River Basin upstream from the reservoir. The effects of different inflows from the watersheds drained by these tributaries on the residence time of water in Lake Houston and closely associated physical...

Rendon, Samuel H.; Lee, Michael T.
Rendon, S.H., and Lee, M.T., 2015, Simulation of the effects of different inflows on hydrologic conditions in Lake Houston with a three-dimensional hydrodynamic model, Houston, Texas, 2009–10: U.S. Geological Survey Scientific Investigations Report 2015–5153, 42 p., http://dx.doi.org/10.3133/sir20155153.

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Year Published: 2015

myScience—Engaging the public in U.S. Geological Survey science

myScience (http://txpub.usgs.gov/myscience/) is a Web application developed by the U.S. Geological Survey (USGS) Texas Water Science Center through a partnership with the USGS Community for Data Integration to address the need for increasing public awareness and participation in existing USGS citizen science projects. The myScience application...

Holl, Sally
Holl, Sally, 2015, myScience—Engaging the public in U.S. Geological Survey Science: U.S. Geological Survey Fact Sheet 2015–3070, 2 p., http://dx.doi.org/10.3133/fs20153070.

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Year Published: 2015

Streamflow gains and losses in the Colorado River in northwestern Burnet and southeastern San Saba Counties, Texas

In October 2012, the U.S. Geological Survey (USGS), in cooperation with the Central Texas Groundwater Conservation District, began an assessment to better understand if and where groundwater from the Ellenburger-San Saba aquifer is discharging to the Colorado River, and if and where Colorado River streamflow is recharging the Ellenburger-San Saba...

Braun, Christopher L.; Grzyb, Scott D.
Braun, C.L., and Grzyb, S.D., 2015, Streamflow gains and losses in the Colorado River in northwestern Burnet and southeastern San Saba Counties, Texas, 2012–14: U.S. Geological Survey Scientific Investigations Report 2015–5098, 32 p., http://dx.doi.org/10.3133/sir20155098.