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Evaporation in Texas

Explore the importance of evaporation in Texas, the impact on water resources, and reliable sources of evaporation data. Learn about the monitoring efforts, reservoir capacity variations, and the comparison of evaporation to drought water loss in Lake Grapevine.

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Evaporation in Texas

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  1. Evaporation in Texas CE 394K.2 Spring 2007

  2. Evaporation In Texas • Evaporation is an important component of the hydrological cycle. • Globally volumes evaporating in reservoirs exceeded the volume consumed to meet both domestic and industrial needs.   CE 394K.2 - Spring 2007 Smith

  3. Evaporation In Texas • Several groups monitor evaporation in Texas. • Texas has77 reservoirs • 98 percent of total conservation storage • Must have a capacity of 5,000 acre-feet   or more.   CE 394K.2 - Spring 2007 Smith

  4. Evaporation Data • Pan Evaporation • Army Corp of Engineers • Texas Water Development Board • NARR Data • Evaporation • Potential Evaporation CE 394K.2 - Spring 2007 Smith

  5. Lake Grapevine CE 394K.2 - Spring 2007 Smith

  6. Capacity Variations inLake Grapevine CE 394K.2 - Spring 2007 Smith

  7. Evaporation Impact on Lake Grapevine CE 394K.2 - Spring 2007 Smith

  8. Evaporation at Lake Grapevine

  9. Observed Data Compared to Calculated Values CE 394K.2 - Spring 2007 Smith

  10. Evaporation in Lake Grapevine Over Time Potential Evaporation Evaporation

  11. Evaporation in Texas Reservoirs

  12. Comparing Methods by Maximum Temperature CE 394K.2 - Spring 2007 Smith

  13. Comparing Maximum Temperature Method at Lake Grapevine

  14. Conclusions • Evaporation has a substantial impact on Texas’s water resources and water planning • There are several reliable sources of evaporation data for Texas • NARR Data • Army Corps of Engineers CE 394K.2 - Spring 2007 Smith

  15. Any Questions? CE 394K.2 - Spring 2007 Smith

  16. Evaporation Compared to Drought

  17. Water Loss in Lake Grapevine

  18. Evaporation in Texas CE 394K.2 - Spring 2007 Smith

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