Use of the ASCE Standardized Reference ET Equation by Agricultural Weather Networks in the Western U.S.: Current Status and Future Challenges
Publication: World Environmental and Water Resource Congress 2006: Examining the Confluence of Environmental and Water Concerns
Abstract
The procedures used by the public agricultural weather networks to estimate reference evapotranspiration (ETref) in the western United States were assessed to determine how many networks have adopted the ASCE Standardized Reference Evapotranspiration Equation ETszEQ. Five states now use the ETszEQ to generate ETref values. Several additional procedures are used to estimate ETref in the region. The most widely used procedures are 1982 Kimberly Penman Equation and the Nebraska Penman Equation. ETref values computed using these two Penman Equations were found to be similar to ETref values computed using the ETszEQ, suggesting a switch to the ETszEQ would not cause serious problems with existing irrigation management/crop water use programs in states using these two Penman Equations.
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Copyright
© 2006 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Agriculture
- Business management
- Computer networks
- Computing in civil engineering
- Construction engineering
- Construction management
- Evaporation
- Evapotranspiration
- Hydrologic engineering
- Irrigation engineering
- Irrigation water
- Management methods
- Organizations
- Practice and Profession
- Professional societies
- Standards and codes
- Water (by type)
- Water and water resources
- Water management
- Water supply
- Water use
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