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Simulation Of Streamflow Evapotranspiration And Groundwater Recharge In The Middle Nueces River Watershed South Texas 1961 2008
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Book Synopsis Simulation of Streamflow, Evapotranspiration, and Groundwater Recharge in the Middle Nueces River Watershed, South Texas, 1961-2008 by : U.S. Department of the Interior
Download or read book Simulation of Streamflow, Evapotranspiration, and Groundwater Recharge in the Middle Nueces River Watershed, South Texas, 1961-2008 written by U.S. Department of the Interior and published by . This book was released on 2014-10-09 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Geological Survey—in cooperation with the U.S. Army Corps of Engineers, Fort Worth District; City of Corpus Christi; Guadalupe–Blanco River Authority; San Antonio River Authority; and San Antonio Water System—configured, calibrated, and tested a watershed model for a study area consisting of about 7,726 square miles of the middle Nueces River watershed in south Texas. The purpose of the model is to contribute to the understanding of watershed processes and hydrologic conditions in the middle Nueces River watershed. The model simulates streamflow, evapotranspiration, and groundwater recharge by using a numerical representation of physical characteristics of the landscape and meteorological and streamflow data.
Book Synopsis Simulation of Streamflow, Evapotranspiration, and Groundwater Recharge in the Middle Nueces River Watershed, South Texas, 1961-2008 by : Benjamin J. Dietsch
Download or read book Simulation of Streamflow, Evapotranspiration, and Groundwater Recharge in the Middle Nueces River Watershed, South Texas, 1961-2008 written by Benjamin J. Dietsch and published by Geological Survey (USGS). This book was released on 2012-01-01 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Geological Survey---in cooperation with the U.S. Army Corps of Engineers, Fort Worth District; City of Corpus Christi; Guadalupe-Blanco River Authority; San Antonio River Authority; and San Antonio Water System---configured, calibrated, and tested a watershed model for a study area consisting of about 7,726 square miles of the middle Nueces River watershed in south Texas. The purpose of the model is to contribute to the understanding of watershed processes and hydrologic conditions in the middle Nueces River watershed. The model simulates streamflow, evapotranspiration, and groundwater recharge by using a numerical representation of physical characteristics of the landscape and meteorological and streamflow data. Model simulations of streamflow, evapotranspiration, and groundwater recharge were performed for various periods of record depending upon available gaged data for input and comparison, starting as early as 1961. Because of the large size of the study area, the middle Nueces River watershed was divided into eight subwatersheds, and separate Hydrological Simulation Program---FORTRAN models were developed for each subwatershed. Simulation of the overall study area involved running simulations in downstream order. Output from the model was summarized by subwatershed, point locations, stream and reservoir reaches, and the Carrizo-Wilcox aquifer outcrop area. Four long-term U.S. Geological Survey streamflow-gaging stations were used for streamflow model calibration and testing with data from 1990 to 2008. Monthly evaporation estimates from 2001 to 2008 and water-level data from 1961 to 2008 at Lake Corpus Christi also were used for model calibration. Additionally, evapotranspiration data for 2006-8 from a U.S. Geological Survey meteorological station in Medina County were used for calibration. Streamflow calibrations were considered poor to very good. The 2000-8 calibration results were characterized as good to very good for total flow volumes and for the volume of the highest 10 percent of daily flows. Calibration results for streamflow volumes of the lowest 50 percent of daily flows were considered poor. The daily streamflow calibration at U.S. Geological Survey streamflow-gaging station 08210000 Nueces River near Three Rivers, Tex., had the lowest (best) root mean square error, and U.S. Geological Survey streamflow-gaging station 08194500 Nueces River near Tilden, Tex., had the highest root mean square error expressed as a percentage of the mean flow rate. The mean daily reservoir volume during 1961-2008 was 182,000 acre-feet. Simulated mean daily reservoir volume was within 9 percent of this computed volume. Selected results of the model include streamflow yields for the subwatersheds and water-balance information for the Carrizo-Wilcox aquifer outcrop area. For the entire model domain, the area-weighted mean streamflow yield from 1961 to 2008 was 1.12 inches/year. The mean annual rainfall on the outcrop area during the 1961-2008 simulation period was 21.7 inches. Of this rainfall, an annual mean of 20.1 inches (about 93 percent) was simulated as evapotranspiration, 1.2 inches (about 6 percent) was simulated as groundwater recharge, and 0.5 inches (about 2 percent) was simulated as surface runoff.
Book Synopsis Simulation of Streamflow, Evapotranspiration, and Groundwater Recharge in the Lower Frio River Watershed, South Texas, 1961–2008 by : Joy S. Lizárraga
Download or read book Simulation of Streamflow, Evapotranspiration, and Groundwater Recharge in the Lower Frio River Watershed, South Texas, 1961–2008 written by Joy S. Lizárraga and published by . This book was released on 2011 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulation of Streamflow Evapotranspiration, and Groundwater Recharge in the Lower San Antonio River Watershed, South-Central Texas, 2000-2007 by : Joy S. Lizárraga
Download or read book Simulation of Streamflow Evapotranspiration, and Groundwater Recharge in the Lower San Antonio River Watershed, South-Central Texas, 2000-2007 written by Joy S. Lizárraga and published by Geological Survey (USGS). This book was released on 2010-01-01 with total page 41 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulation of Streamflow and Suspended-sediment Concentrations and Loads in the Lower Nueces River Watershed, Downstream for Lake Corpus Christi to the Nueces Estuary, South Texas, 1958-2008 by : Darwin J. Ockerman
Download or read book Simulation of Streamflow and Suspended-sediment Concentrations and Loads in the Lower Nueces River Watershed, Downstream for Lake Corpus Christi to the Nueces Estuary, South Texas, 1958-2008 written by Darwin J. Ockerman and published by . This book was released on 2010 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulation of Streamflow and Estimation of Streamflow Constituent Loads in the San Antonio River Watershed, Bexar County, Texas, 1997-2001 by : Darwin J. Ockerman
Download or read book Simulation of Streamflow and Estimation of Streamflow Constituent Loads in the San Antonio River Watershed, Bexar County, Texas, 1997-2001 written by Darwin J. Ockerman and published by . This book was released on 2003 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Simulation of Runoff and Recharge and Estimation of Constituent Loads in Runoff, Edwards Aquifer Recharge Zone (outcrop) and Catchment Area, Bexar County, Texas, 1997-2000 by : Darwin J. Ockerman
Download or read book Simulation of Runoff and Recharge and Estimation of Constituent Loads in Runoff, Edwards Aquifer Recharge Zone (outcrop) and Catchment Area, Bexar County, Texas, 1997-2000 written by Darwin J. Ockerman and published by . This book was released on 2002 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Streamflow Losses Along the Balcones Fault Zone, Nueces River Basin, Texas by :
Download or read book Streamflow Losses Along the Balcones Fault Zone, Nueces River Basin, Texas written by and published by . This book was released on 1983 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Regional Rainfall-runoff Relations for Simulation of Streamflow for Watersheds in Du Page County, Illinois by : James J. Duncker
Download or read book Regional Rainfall-runoff Relations for Simulation of Streamflow for Watersheds in Du Page County, Illinois written by James J. Duncker and published by . This book was released on 1998 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Regional Equations for Estimating Mean Annual and Mean Seasonal Runoff for Natural Basins in Texas, Base Period 1961-90 by : Jennifer Lanning-Rush
Download or read book Regional Equations for Estimating Mean Annual and Mean Seasonal Runoff for Natural Basins in Texas, Base Period 1961-90 written by Jennifer Lanning-Rush and published by . This book was released on 2000 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Regional equations were developed for estimating mean annual and mean seasonal runoff for natural basins of Texas. The equations, which are based on the statistical relation between streamflow and basin characteristics, use streamflow data and basin characteristics from U.S. Geological Survey streamflow-gaging stations within natural basins and with at least 8 years of data during 1961-90. The State was divided into 11 hydrologic regions on the basis of previous studies. The final equations for estimating mean annual and mean seasonal runoff were developed from 228 streamflow-gaging stations. Contributing drainage area and mean annual or mean seasonal precipitation were determined to be the most significant basin characteristics in each region.
Book Synopsis Application of the Precipitation-runoff Modeling System Model to Simulate Dry Season Runoff for Three Watersheds in South-central Guam by : Lenore Y. Nakama
Download or read book Application of the Precipitation-runoff Modeling System Model to Simulate Dry Season Runoff for Three Watersheds in South-central Guam written by Lenore Y. Nakama and published by . This book was released on 1994 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Sources of Suspended-sediment Loads in the Lower Nueces River Watershed, Downstream from Lake Corpus Christi to the Nueces Estuary, South Texas, 1958-2010 by : Darwin J. Ockerman
Download or read book Sources of Suspended-sediment Loads in the Lower Nueces River Watershed, Downstream from Lake Corpus Christi to the Nueces Estuary, South Texas, 1958-2010 written by Darwin J. Ockerman and published by . This book was released on 2013 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estimation of the Effects of Land Use and Groundwater Withdrawals on Streamflow for the Pomperaug River, Connecticut by : U.S. Department of the Interior
Download or read book Estimation of the Effects of Land Use and Groundwater Withdrawals on Streamflow for the Pomperaug River, Connecticut written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-07-23 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: A precipitation runoff model for the Pomperaug River watershed, Connecticut was developed to address issues of concern including the effect of development on streamflow and groundwater recharge, and the implications of water withdrawals on streamflow. The model was parameterized using a strategy that requires a minimum of calibration and optimization by establishing basic relations between the parameter value and physical characteristics of individual hydrologic response units (HRUs) that comprise the model. The strategy was devised so that the information needed can be obtained from Geographic Information System and other general databases for Connecticut. Simulation of groundwater recharge enabled evaluation of the temporal and spatial mapping of recharge variation across the watershed and the spatial effects of changes in land cover on base flow and surface runoff.
Book Synopsis Regional Rainfall-Runoff Relations for Simulation of Streamflow for Watersheds in Lake County by : James J. Duncker, Tracy J. Vail, Charles S. Melching
Download or read book Regional Rainfall-Runoff Relations for Simulation of Streamflow for Watersheds in Lake County written by James J. Duncker, Tracy J. Vail, Charles S. Melching and published by . This book was released on 1995 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Developing a Watershed Modeling Approach for Reconstructing Past Streamflow in the Upper Walker River Basin, California by : Jasmine C. Vittori
Download or read book Developing a Watershed Modeling Approach for Reconstructing Past Streamflow in the Upper Walker River Basin, California written by Jasmine C. Vittori and published by . This book was released on 2011 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measured streamflow data in a given basin are important for determining regional patterns of climate and streamflow trends, but are often unavailable or extend back less than 100 years. Observed streamflows can be regressed against tree-ring data that serve as proxies for streamflow to extend the measured record, however this empirical approach cannot account for factors that do not directly affect tree-ring growth, but which may influence streamflow. To reconstruct past streamflows in a more mechanistic way, seasonal water balance models were reviewed and developed for the upper West Walker River basin that can use proxy precipitation and air temperature data derived from treering records. The final model incorporates simplistic relationships between temperature, precipitation, and other components of the hydrologic cycle, and operates at a seasonal time scale. The model was able to reproduce streamflow with an r2 of 0.90, and a RMSE of 7.50 cm with average seasonal air temperature as input. Simulated streamflow was 0.66% greater than observed streamflow for WY 1940 through WY 2006. This model was subsequently used to simulate the effects of wildfire on streamflow in the upper West Walker River Basin. The earliest historical record of wildfire in this basin dates back to 1961, with the most recent recorded in 2005. Evapotranspiration and runoff coefficients were adjusted to simulate reduced vegetation cover as a result of fire, and were applied to the dry season when fire was recorded and the subsequent wet season to reflect time required for re-vegetation to occur. The resulting r2 value decreased to 0.85, with RMSE increasing to 9.02 cm, and the overall streamflow simulation increased to 1.57% greater than observed streamflow. Based on the results of this modeling exercise, the modeling approach with average seasonal air temperature would be appropriate for utilizing proxy tree-ring data as input. The model performed very well using only air temperature and precipitation as input and incorporated 6 parameters representing hydrologic processes influencing streamflow. However, simulating wildfire with this model did not improve streamflow simulations, indicating that the model was sensitive to modeling such landcover manipulations.
Book Synopsis Interactions Between Precipitation, Evapotranspiration, Streamflow, and Groundwater in the Southern High Plains by : Kara J. Van Hooser
Download or read book Interactions Between Precipitation, Evapotranspiration, Streamflow, and Groundwater in the Southern High Plains written by Kara J. Van Hooser and published by . This book was released on 1999 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nueces River Basin - Edwards Aquifer Recharge Enhancement Projects, Phase IV, Part A by :
Download or read book Nueces River Basin - Edwards Aquifer Recharge Enhancement Projects, Phase IV, Part A written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
