Unified Interior Regions

Region 6: Arkansas-Rio Grande-Texas-Gulf

Regions L2 Landing Page Tabs

Filter Total Items: 1,624
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Year Published: 2014

Mean annual, seasonal, and monthly precipitation and runoff in Arkansas, 1951-2011

This report describes long-term annual, seasonal, and monthly means for precipitation and runoff in Arkansas for the period from 1951 through 2011. Precipitation means were estimated using data from the Parameter-elevation Regressions on Independent Slopes Model database; while total runoff, groundwater runoff, and surface runoff means were...

Pugh, Aaron L.; Westerman, Drew A.
Mean annual, seasonal, and monthly precipitation and runoff in Arkansas, 1951-2011; 2014; SIR; 2014-5006; Pugh, Aaron L.; Westerman, Drew A.

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Year Published: 2014

Groundwater quality at Alabama Plating and Vincent Spring, Vincent, Alabama, 2007–2008

The former Alabama Plating site in Vincent, Alabama, includes the location where the Alabama Plating Company operated an electroplating facility from 1956 until 1986. The operation of the facility generated waste containing cyanide, arsenic, cadmium, chromium, copper, lead, zinc, and other heavy metals. Contamination resulting from the site...

Bradley, Michael W.; Gill, Amy C.
Groundwater quality at Alabama Plating and Vincent Spring, Vincent, Alabama, 2007–2008; 2014; OFR; 2013-1298; Bradley, Michael W.; Gill, Amy C.

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Year Published: 2014

Potentiometric surface of the Ozark aquifer in northern Arkansas, 2010

The Ozark aquifer in northern Arkansas is composed of dolomite, limestone, sandstone, and shale of Late Cambrian to Middle Devonian age and ranges in thickness from approximately 1,100 feet to more than 4,000 feet. Hydrologically, the aquifer is complex, characterized by discrete and discontinuous flow components with large variations in...

Czarnecki, John B.; Pugh, Aaron L.; Blackstock, Joshua M.
Potentiometric surface of the Ozark aquifer in northern Arkansas, 2010; 2014; SIR; 2014-5013; Czarnecki, John B.; Pugh, Aaron L.; Blackstock, Joshua M.

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Year Published: 2014

Trend analysis and selected summary statistics of annual mean streamflow for 38 selected long-term U.S. Geological Survey streamgages in Texas, water years 1916-2012

In 2013, the U.S. Geological Survey (USGS) operated more than 500 continuous streamgages (streamflow-gaging stations) in Texas. In cooperation with the Texas Water Development Board, the USGS evaluated mean annual streamflow data for 38 selected streamgages that were active as of water year 2012. The 38 streamgages have annual mean streamflow data...

Asquith, William H.; Barbie, Dana L.
Trend analysis and selected summary statistics of annual mean streamflow for 38 selected long-term U.S. Geological Survey streamgages in Texas, water years 1916-2012; 2014; SIR; 2013-5230; Asquith, William H.; Barbie, Dana L.

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Year Published: 2014

Arkansas StreamStats: a U.S. Geological Survey web map application for basin characteristics and streamflow statistics

The U.S. Geological Survey (USGS) provides streamflow and other related information needed by water-resource managers responsible for protecting people and property from floods, planning and managing water-resource activities, and protecting water quality. Streamflow statistics provided by the USGS, such as the 1-percent annual exceedance...

Pugh, Aaron L.
Arkansas StreamStats: a U.S. Geological Survey web map application for basin characteristics and streamflow statistics; 2014; FS; 2013-3041; Pugh, Aaron L.

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Year Published: 2014

Effects of land use, stream habitat, and water quality on biological communities of wadeable streams in the Illinois River Basin of Arkansas, 2011 and 2012

The Illinois River Basin includes an area of diverse land use in northwestern Arkansas. Land-use data collected in 2006 indicate that most of the land in the basin is agricultural. The agricultural land is used primarily for production of poultry and cattle. Eighteen sites were selected from the list of candidate sites based on drainage area,...

Petersen, James C.; Justus, B.G.; Meredith, Bradley J.
Effects of land use, stream habitat, and water quality on biological communities of wadeable streams in the Illinois River Basin of Arkansas, 2011 and 2012; 2014; SIR; 2014-5009; Petersen, James C.; Justus, Billy G.; Meredith, Bradley J.

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Year Published: 2014

Simulation of groundwater flow in the Edwards-Trinity and related aquifers in the Pecos County region, Texas

The Edwards-Trinity aquifer is a vital groundwater resource for agricultural, industrial, and public supply uses in the Pecos County region of western Texas. The U.S. Geological Survey completed a comprehensive, integrated analysis of available hydrogeologic data to develop a numerical groundwater-flow model of the Edwards-Trinity and related...

Clark, Brian R.; Bumgarner, Johnathan R.; Houston, Natalie A.; Foster, Adam L.
Simulation of groundwater flow in the Edwards-Trinity and related aquifers in the Pecos County region, Texas; 2014; SIR; 2013-5228; Clark, Brian R.; Bumgarner, Johnathan R.; Houston, Natalie A.; Foster, Adam L.

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Year Published: 2014

Quantifying the predictive consequences of model error with linear subspace analysis

All computer models are simplified and imperfect simulators of complex natural systems. The discrepancy arising from simplification induces bias in model predictions, which may be amplified by the process of model calibration. This paper presents a new method to identify and quantify the predictive consequences of calibrating a simplified computer...

White, Jeremy T.; Doherty, John E.; Hughes, Joseph D.
White, J. T., J. E. Doherty, and J. D. Hughes (2014), Quantifying the predictive consequences of model error with linear subspace analysis, Water Resour. Res., 50, 1152–1173, doi:10.1002/2013WR014767.

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Year Published: 2014

Trends in precipitation, streamflow, reservoir pool elevations, and reservoir releases in Arkansas and selected sites in Louisiana, Missouri, and Oklahoma, 1951–2011

The U.S. Geological Survey (USGS) and the U.S. Army Corps of Engineers (USACE) conducted a statistical analysis of trends in precipitation, streamflow, reservoir pool elevations, and reservoir releases in Arkansas and selected sites in Louisiana, Missouri, and Oklahoma for the period 1951–2011. The Mann-Kendall test was used to test for trends in...

Wagner, Daniel M.; Krieger, Joshua D.; Merriman, Katherine R.
Trends in precipitation, streamflow, reservoir pool elevations, and reservoir releases in Arkansas and selected sites in Louisiana, Missouri, and Oklahoma, 1951–2011; 2014; SIR; 2013-5240; Wagner, Daniel M.; Krieger, Joshua D.; Merriman, Katherine R.

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Year Published: 2014

Linkage of the Soil and Water Assessment Tool and the Texas Water Availability Model to simulate the effects of brush management on monthly storage of Canyon Lake, south-central Texas, 1995-2010

The U.S. Geological Survey (USGS), in cooperation with the Texas State Soil and Water Conservation Board, developed and applied an approach to create a linkage between the published upper Guadalupe River Soil Water Assessment Tool (SWAT) brush-management (ashe juniper [Juniperus ashei]) model and the full authorization version Guadalupe River...

Asquith, William H.; Bumgarner, Johnathan R.
Linkage of the Soil and Water Assessment Tool and the Texas Water Availability Model to simulate the effects of brush management on monthly storage of Canyon Lake, south-central Texas, 1995-2010; 2014; SIR; 2013-5239; Asquith, William H.; Bumgarner, Johnathan R.

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Year Published: 2014

Parameter estimation for the 4-parameter Asymmetric Exponential Power distribution by the method of L-moments using R

The implementation characteristics of two method of L-moments (MLM) algorithms for parameter estimation of the 4-parameter Asymmetric Exponential Power (AEP4) distribution are studied using the R environment for statistical computing. The objective is to validate the algorithms for general application of the AEP4 using R. An algorithm was...

Asquith, William H.
Parameter estimation for the 4-parameter Asymmetric Exponential Power distribution by the method of L-moments using R; 2014; Article; Journal; Computational Statistics and Data Analysis; Asquith, William H.

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Year Published: 2014

Response to comment on "Cancer risk from incidental ingestion exposures to PAHs associated with coal-tar-sealed pavement"

No abstract available.

William, E. Spencer; Mahler, Barbara; Van Metre, Peter C.
Response to comment on "Cancer risk from incidental ingestion exposures to PAHs associated with coal-tar-sealed pavement"; 2014; Article; Journal; Environmental Science & Technology; William, E. Spencer; Mahler, Barbara J.; Van Metre, Peter C.

Filter Total Items: 266
Photo of Spring Lake in San Marcos, Texas
October 28, 2008

Photo of Spring Lake in San Marcos, Texas

Spring Lake in San Marcos, Texas, has hundreds of small springs underneath it.

A new website now provides important information about streamflow in the Comal and San Marcos Rivers and springflow at Comal and San Marcos Springs.

USGS station 08114000 Brazos River at Richmond, Texas, looking upstream from eastbound U.S. Highway 90-A bridge.
August 7, 2008

USGS station 08114000 Brazos River at Richmond, Texas

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking upstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174
http://pubs.usgs.gov/sir/2009/5174/

USGS station 08114000 Brazos River at Richmond, Texas, downstream from eastbound U.S. Highway 90-A bridge.
August 7, 2008

USGS station 08114000 Brazos River at Richmond, Texas

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking downstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174
http://pubs.usgs.gov/sir/2009/5174/

USGS station 08114000 Brazos River at Richmond, Texas, looking downstream from eastbound U.S. Highway 90-A bridge.
August 7, 2008

USGS station 08114000 Brazos River at Richmond, Texas

U.S. Geological Survey streamflow-gaging station 08114000 Brazos River at Richmond, Texas, looking downstream from eastbound U.S. Highway 90-A bridge, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking upstream from right bank.
August 7, 2008

USGS station 08116650 Brazos River near Rosharon, Texas

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking upstream from right bank, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, upstream from FM 1462 bridge.
August 7, 2008

USGS station 08116650 Brazos River near Rosharon, Texas

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking upstream from FM 1462 bridge, August 7, 2008.
USGS SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking downstream from FM 1462.
August 7, 2008

USGS station 08116650 Brazos River near Rosharon, Texas

U.S. Geological Survey streamflow-gaging station 08116650 Brazos River near Rosharon, Texas, looking downstream from FM 1462 bridge, August 7, 2008.
USGS SIR 2009–5174

USGS station 08111500 Brazos River near Hempstead, Texas.
April 2, 2008

USGS station 08111500 Brazos River near Hempstead, Texas

U.S. Geological Survey streamflow-gaging station 08111500 Brazos River near Hempstead, Texas, looking downstream from U.S. Highway 290 bridge, April 2, 2008.
USGS SIR 2009–5174
http://pubs.usgs.gov/sir/2009/5174/

Station 08108700 Brazos River at State Highway 21 near Bryan, Texas.
April 2, 2008

Station 08108700 Brazos Riv. at SH 21 near Bryan, Texas

U.S. Geological Survey streamflow-gaging station 08108700 Brazos River at State Highway 21 near Bryan, Texas, looking downstream from right bank just downstream from Texas State Highway 21 bridge, April 2, 2008.

U.S. Geological Survey streamflow-gaging station 08109000 Brazos River near Bryan, Texas.
April 2, 2008

USGS station 08109000 Brazos River near Bryan, Texas

U.S. Geological Survey streamflow-gaging station 08109000 Brazos River near Bryan, Texas, looking upstream from left bank, April 2, 2008.

SIR 2009–5174

Streamflow-gaging station 08098290 Brazos River near Highbank, Texas
April 1, 2008

Station 08098290 Brazos River near Highbank, Texas

U.S. Geological Survey streamflow-gaging station 08098290 Brazos River near Highbank, Texas, viewed from right bank downstream from FM 413 bridge, April 1, 2008.

SIR 2009–5174

U.S. Geological Survey station 08110800 Navasota River at Old Spanish Road near Bryan, Texas
April 1, 2008

Station 08110800 Navasota Riv. at Old Spanish Rd., Tex., SIR 2009–5174

U.S. Geological Survey streamflow-gaging station 08110800 Navasota River at Old Spanish Road near Bryan, Texas, photograph looking upstream from bridge, April 1, 2008.