New insights into surface-water/groundwater exchanges in the Guadalupe River, Texas, from floating geophysical methods
Links
- Document: Report (19.0 MB pdf)
- Related Work: Journal article - New insights on scale-dependent surface and groundwater exchange from a floating self-potential dipole
- Data Release: USGS data release - 14.86 km profiles of the electric and self-potential fields measured in the lower Guadalupe River channel, Texas Interior Gulf Coastal Plain, September 2016
- Download citation as: RIS | Dublin Core
Abstract
In south-central Texas, the amount of streamflow in the Guadalupe River is a primary concern for local and downstream communities because of municipal, agricultural, wildlife, and recreational uses. Understanding the flow paths and rates of exchange between the surface water in the river and the groundwater in the underlying Carrizo-Wilcox aquifer is vital for understanding the water budget and streamflow variations. In areas where the Guadalupe River crosses the Carrizo-Wilcox aquifer outcrop, the surface-water and groundwater exchanges are not well characterized. Traditional methods to measure these interactions, such as measuring differences in surface-water flows at different locations to infer gains and losses between the locations, are not feasible along this stretch of the Guadalupe River because of upstream dams that cause large daily fluctuations in streamflow. Consequently, the U.S. Geological Survey, in cooperation with the Guadalupe-Blanco River Authority, applied geophysical methods in an exploratory study to identify reaches of the river where streamflow gains and losses (surface-water/groundwater exchanges) might be occurring.
Suggested Citation
Ikard, S.J., Banta, J.R., and Stanton, G.P., 2018, New insights into surface-water/groundwater exchanges in the Guadalupe River, Texas, from floating geophysical methods: U.S. Geological Survey Fact Sheet 2018–3057, 4 p., https://doi.org/10.3133/fs20183057.
ISSN: 2327-6932 (online)
ISSN: 2327-6916 (print)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | New insights into surface-water/groundwater exchanges in the Guadalupe River, Texas, from floating geophysical methods |
| Series title | Fact Sheet |
| Series number | 2018-3057 |
| DOI | 10.3133/fs20183057 |
| Year Published | 2018 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Texas Water Science Center |
| Description | Report: 4 p.; Data Release |
| Country | United States |
| State | Texas |
| Other Geospatial | Guadalupe River |
| Online Only (Y/N) | N |
| Google Analytic Metrics | Metrics page |