Evaporation in Texas CE 394K.2 Spring 2007 Slide 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.
Globally volumes evaporating in reservoirs exceeded the volume
consumed to meet both domestic and industrial needs. CE 394K.2 -
Spring 2007 Smith Slide 3 Evaporation In Texas Several groups
monitor evaporation in Texas. Texas has 77 reservoirs 98 percent of
total conservation storage Must have a capacity of 5,000 acre-feet
or more. Must have a capacity of 5,000 acre-feet or more. CE 394K.2
- Spring 2007 Smith Slide 4 Evaporation Data Pan Evaporation Army
Corp of Engineers Texas Water Development Board NARR Data
Evaporation Potential Evaporation CE 394K.2 - Spring 2007 Smith
Slide 5 Lake Grapevine CE 394K.2 - Spring 2007 Smith Slide 6
Capacity Variations in Lake Grapevine CE 394K.2 - Spring 2007 Smith
Slide 7 Evaporation Impact on Lake Grapevine CE 394K.2 - Spring
2007 Smith Slide 8 Evaporation at Lake Grapevine Slide 9 Observed
Data Compared to Calculated Values CE 394K.2 - Spring 2007 Smith
Slide 10 Evaporation in Lake Grapevine Over Time Evaporation
Potential Evaporation Slide 11 Evaporation in Texas Reservoirs
Slide 12 Comparing Methods by Maximum Temperature CE 394K.2 -
Spring 2007 Smith Slide 13 Comparing Maximum Temperature Method at
Lake Grapevine Slide 14 Conclusions Evaporation has a substantial
impact on Texass 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 Slide 15 Any
Questions? CE 394K.2 - Spring 2007 Smith Slide 16 Evaporation
Compared to Drought Slide 17 Water Loss in Lake Grapevine
January349.00121712.791035.651766.965
February578.17962232.621246.8952163.995
March1171.0443066.572038.7142256.177
April1786.4733666.232441.4172814.222
May2378.2355037.5992562.8074886.785
June2070.3714219.83481.2724071.395
July761.33536332.6784181.1595446.273
August13.583976402.9463762.5056032.982
September177.38034575.5292781.1794287.126
October556.37552805.812166.0382654.217
November588.60421406.9841525.5841442.051
December354.70221120.8481168.131362.818 Yearly Total
10785.2942580.428391.3539185.01 Slide 18 Evaporation in Texas CE
394K.2 - Spring 2007 Smith
