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Estimating consumptive irrigation requirements for crops in Idaho. Appendix E Item Info

Four consumptive use methods presented by the United Nations Food and Agricultural Organization (FAO) (Doorenbos and Pruitt, 1977) and the Jensen-Haise, SCS-modified Blaney-Criddle, standard Penman and Wright modified Penman (Wright, 1982a) methods were compared using daily weather data from the USDA-ARS Snake River Conservation Research Center at Kimberly, Idaho. The FAO-modified Blaney-Criddle (FAO-BC) method was selected as the best method for estimating consumptive use on a statewide basis, based on accuracy and responsiveness of the equation and the primary data requirement of air temperature, only. An additional benefit of using the single parameter FAO-BC method is that it can be used as a multiple-parameter method where measured values of wind, humidity and solar radiation are available. A ten percent upward adjustment to FAO-BC estimates per 1000 meters elevation suggested by Pruitt (Dooenbos and Pruitt, 1977) was found to be necessary. Alfalfa/FAO-BC reference ratios developed using Kimberly data were found to be transferable to other Idaho sites. NOAA weather stations throughout Idaho were objectively rated according to the degree of station aridity and environmental effects on air temperatures. Mean monthly temperatures at each NOAA site were adjusted downward according to the station aridity rating and maximum aridity effects reported by Allen (1983) for Idaho. Monthly statistics were computed for consumptive use estimated for 98 weather sites in Idaho using the calibrated FAO-BC with elevation correction and alfalfa/FAO-BC reference ratios.

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Title:
Estimating consumptive irrigation requirements for crops in Idaho. Appendix E
Authors:
Allen, R. G.; Brockway, C. E.
Date Created (ISO Standard):
1983-08
Description:
Four consumptive use methods presented by the United Nations Food and Agricultural Organization (FAO) (Doorenbos and Pruitt, 1977) and the Jensen-Haise, SCS-modified Blaney-Criddle, standard Penman and Wright modified Penman (Wright, 1982a) methods were compared using daily weather data from the USDA-ARS Snake River Conservation Research Center at Kimberly, Idaho. The FAO-modified Blaney-Criddle (FAO-BC) method was selected as the best method for estimating consumptive use on a statewide basis, based on accuracy and responsiveness of the equation and the primary data requirement of air temperature, only. An additional benefit of using the single parameter FAO-BC method is that it can be used as a multiple-parameter method where measured values of wind, humidity and solar radiation are available. A ten percent upward adjustment to FAO-BC estimates per 1000 meters elevation suggested by Pruitt (Dooenbos and Pruitt, 1977) was found to be necessary. Alfalfa/FAO-BC reference ratios developed using Kimberly data were found to be transferable to other Idaho sites. NOAA weather stations throughout Idaho were objectively rated according to the degree of station aridity and environmental effects on air temperatures. Mean monthly temperatures at each NOAA site were adjusted downward according to the station aridity rating and maximum aridity effects reported by Allen (1983) for Idaho. Monthly statistics were computed for consumptive use estimated for 98 weather sites in Idaho using the calibrated FAO-BC with elevation correction and alfalfa/FAO-BC reference ratios.
Subjects:
Weather data collections Air temperature Consumptive use Crops Prediction
Collection:
IWRRI
IWRRI number:
198303
Rights:
Rights to the digital resource are held by the University of Idaho. http://www.uidaho.edu/
Publisher:
Idaho Water and Energy Resources Research Institute; University of Idaho
Contributing Institution:
University of Idaho
Type:
Text
Format:
application/pdf
Cataloger:
KIT
Date Digitized:
2017-08-24

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Source
Preferred Citation:
"Estimating consumptive irrigation requirements for crops in Idaho. Appendix E", Idaho Waters Digital Library, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iwdl/items/iwdl-198303.html
Rights
Rights:
Rights to the digital resource are held by the University of Idaho. http://www.uidaho.edu/
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