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Bushland ET Calculator

posted on 2024-02-15, 18:51 authored by Prasanna GowdaPrasanna Gowda, Jerry E. Moorhead, Travis C. Warzecha, Brett Ponder, Terry A. Howell, Thomas H. Marek, Dana O. Porter

The Bushland Reference ET calculator was developed at the USDA-ARS Conservation and Production Research Laboratory, Bushland, Texas. Although it was designed and developed for use mainly by producers and crop consultants to manage irrigation scheduling, it can also be used in educational training, research, and other practical application. It uses the ASCE Standardized Reference Evapotranspiration (ET) Equation for calculating grass and alfalfa reference ET at hourly and daily time steps. This program uses the more complex equation for estimating clear-sky solar radiation provided in Appendix D of the ASCE-EWRI ET Manual. Users have the option of using single set or time series weather data to calculate reference ET. Daily reference ET can be calculated either by summing the hourly ET values for a given day or by using averages of the climatic data.

Resources in this dataset:




Data contact name

Marek, Gary

Data contact email


United States Department of Agriculture


  • Not specified

ISO Topic Category

  • environment

National Agricultural Library Thesaurus terms

computer software; Agricultural Research Service; Texas; consultants; irrigation scheduling; evapotranspiration; equations; grasses; alfalfa; solar radiation; time series analysis; meteorological data

OMB Bureau Code

  • 005:18 - Agricultural Research Service

OMB Program Code

  • 005:040 - National Research

ARS National Program Number

  • 211

Primary article PubAg Handle

Pending citation

  • No

Public Access Level

  • Public

Preferred dataset citation

Gowda, Prasanna H.; Moorhead, Jerry E.; Warzecha, Travis C.; Ponder, Brett; Howell, Terry A.; Marek, Thomas H.; Porter, Dana O. (2019). Bushland ET Calculator. United States Department of Agriculture.

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