The use of historical data and global climate models to assess historical and future surface water and groundwater availability in the Trinity River Basin in Texas
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- More information: Publisher Index Page (via DOI)
- Data Releases:
- USGS data release - Hydrologic simulations using projected climate data as input to the Precipitation-Runoff Modeling System (PRMS) for the Trinity River Basin Integrated Water Availability Assessment, Texas, 2023
- USGS data release - MODFLOW-NWT model used to assess historical and future trends in groundwater availability in the Trinity River alluvium aquifer, Texas
- Open Access Version: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
This paper describes the results of a study that was done by the USGS to assess recent (2017) water availability, forecast long-term trends in water availability, assess changes in water availability, and forecast future water availability in the Trinity River Basin in Texas. The Trinity River Basin surface water model and Trinity River alluvium aquifer (TRAA) groundwater model were created to evaluate future conditions under different global climate models (GCM). The results of this study show minimal overall changes in water availability for both surface water and groundwater. Trend analyses using historical data (1900–2017) indicated an increase of annual precipitation on the watersheds that drain into the reservoirs in Regional Water Planning Group C. However, the Trinity River Basin surface water model GCM ensemble mean annual precipitation indicates a downward trend, resulting in a downward trend in surface runoff. Additionally, the GCM ensemble mean for the Trinity River Basin surface water model and the TRAA groundwater model both indicate a downward trend in recharge while the TRAA model GCM ensemble mean indicates an upward trend in the amount of groundwater leaving the aquifer to rivers and streams resulting in an upward trend of cumulative storage change.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The use of historical data and global climate models to assess historical and future surface water and groundwater availability in the Trinity River Basin in Texas |
| Series title | Texas Water Journal |
| DOI | 10.21423/twj.v14i1.7146 |
| Edition | 1 |
| Volume | 14 |
| Year Published | 2023 |
| Language | English |
| Publisher | Texas Water Journal |
| Contributing office(s) | Oklahoma-Texas Water Science Center |
| Description | 28 p. |
| First page | 34 |
| Last page | 61 |
| Country | United States |
| State | Texas |
| Other Geospatial | Trinity River Basin |
| Google Analytic Metrics | Metrics page |