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Predicting daily irrigation project diversions. Research technical completion report, project A-074-IDA Item Info

The purpose of the research reported was to develop and apply methods for predicting daily irrigation diversions. Two types of models were developed to effectively predict diversions one day in advance and were applied to two large irrigation projects located in southeastern Idaho. The types of procedures developed and tested were (1) physical and (2) statistical procedures. In addition, variables related to predicting diversions were presented and their relationships described. The physical model developed was designed to accurately represent the physical processes of water conveyance and use in an irrigation system. Required inputs included crop consumptive use and irrigation efficiencies in conjunction with time variables such as irrigation interval, irrigation application time and traveling time in the system. Results from the physical model indicated that more data would be necessary for accurate predictions in addition to updating procedures to account for seasonal variations within the system and management. Statistical models were developed using multiple regression techniques. Required inputs included evapotranspiration, precipitation, weekly variation of water use, previous diversions and dummy variables used to account for monthly and seasonal variations of soil moisture management. Predictions from the statistical model followed actual diversions quite closely for three irrigation seasons. It was concluded that the statistical models were superior to the physical modeling approach for predicting irrigation diversions.

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Title:
Predicting daily irrigation project diversions. Research technical completion report, project A-074-IDA
Authors:
Kim, Sung; Busch, John R.; Yoo, Hyung Hak
Date Created (ISO Standard):
1983-10
Description:
The purpose of the research reported was to develop and apply methods for predicting daily irrigation diversions. Two types of models were developed to effectively predict diversions one day in advance and were applied to two large irrigation projects located in southeastern Idaho. The types of procedures developed and tested were (1) physical and (2) statistical procedures. In addition, variables related to predicting diversions were presented and their relationships described. The physical model developed was designed to accurately represent the physical processes of water conveyance and use in an irrigation system. Required inputs included crop consumptive use and irrigation efficiencies in conjunction with time variables such as irrigation interval, irrigation application time and traveling time in the system. Results from the physical model indicated that more data would be necessary for accurate predictions in addition to updating procedures to account for seasonal variations within the system and management. Statistical models were developed using multiple regression techniques. Required inputs included evapotranspiration, precipitation, weekly variation of water use, previous diversions and dummy variables used to account for monthly and seasonal variations of soil moisture management. Predictions from the statistical model followed actual diversions quite closely for three irrigation seasons. It was concluded that the statistical models were superior to the physical modeling approach for predicting irrigation diversions.
Subjects:
Irrigation efficiency Computer models Flow rates Optimization Water delivery Consumptive use Crops
Location:
Southeastern Idaho
Latitude:
43.02
Longitude:
-112.64
Collection:
Boise Basin
IWRRI number:
198308
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:
2017-08-28

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Source
Preferred Citation:
"Predicting daily irrigation project diversions. Research technical completion report, project A-074-IDA", Idaho Waters Digital Library, University of Idaho Library Digital Collections, https://www.lib.uidaho.edu/digital/iwdl/items/iwdl-198308.html
Rights
Rights:
Rights to the digital resource are held by the University of Idaho. http://www.uidaho.edu/
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