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Understanding Recharge to the Edwards Aquifer focusing on the Nueces River. Jenna Kromann. Jenna Kromann. Study Area. Background.

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understanding recharge to the edwards aquifer focusing on the nueces river

Understanding Recharge to the Edwards Aquifer focusing on the Nueces River

Jenna Kromann

Jenna Kromann

background
Background
  • Twenty five percent of the world’s population relies on karst aquifers for water supply, which is why it is important to understand the recharge these systems (Ford and Williams, 2007).
  • Over 2 million people rely on the Edwards aquifer for drinking water, irrigation, ect. (TWDB, 2012)
  • Recharge from Uvalde County is about 45% of total recharge in the Edwards aquifer (Clark, 2003).
slide5

Methods

Key Equations:

NDLAS Model

P-ET-Runoff=

Recharge

Key Equations:

Stream Gauge Model

Gauge Upstream-Gauge Downstream =Recharge

results1
Results

1997 Dry to Wet

results2
Results

Recharge Estimates using python and NDLAS data (NASA)

results3
Results

Recharge Estimates using python and NDLAS data (NASA)

results4
Results

Recharge from Gauging Stations

Over the Recharge and Contributing Zones

of the Edwards Aquifer

references
References
  • Clark, A.K., Edwards Aquifer Authority (Tex.), and Geological Survey (U.S.), 2003, Geologic framework and hydrogeologic characteristics of the Edwards aquifer, Uvalde County, Texas: U.S. Dept. of the Interior, U.S. Geological Survey ; U.S. Geological Survey Information Services [distributor], Austin, Tex. : Denver, CO.
  • Puente, C., 1978, Method of estimating natural recharge to the Edwards aquifer in the San Antonio area, Texas: U.S. Geological Survey Water-Resources Investigations Report,78-10.
  • Ford, D.C., and Williams, P., 2007, Karst Hydrogeology and Geomorphology: Wiley, Chicester.
  • D., Tarboton and D., Madiment, 2013, Example 5-ArcGIS Fall 2013
  • http://www.edwardsaquifer.org/aquifer-data-and-maps/gis