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<br />13 <br /> <br />o <br />-.J <br />~ <br />~ <br /> <br />Canal diversions <br /> <br />Canal diversions are read in through the main program and <br /> <br />summarized in the subroutine WATER. There are three routes which <br /> <br />canal diversions can ta~e: <br /> <br />(1) Canal seepage. This quantity is computed fro:m the <br /> <br />conveyance efficiency for each canal, which was derived <br /> <br />from canal seepage measurements conducted as a part <br /> <br />of the demonstration project. Seepage losses are assumed <br /> <br />to be direct additions to the ground water. <br /> <br />(2) Lateral diversions. Discharge measurements at the <br /> <br />inflow and outflow boundaries of Area I have been made <br /> <br />for each canal and thenc;djU~t~df~r s~~page r-,.,;;;t, and <br />_~w'~"'_""'''~<"'~__''''"~''~''''_''~'_''' ,.,.~, . "_. """ ',___." _ ,_,,,_. <br /> <br />canal spillage to arrive at the lateral diversions from each <br /> <br />canal in Area L <br /> <br />-j"/.I /"01, ','_ <br />'i - /! (." d'. <br /> <br /><1'" "-'j f~,- ;~~ () <br /> <br />(3) Canal spillage. These flows are also evaluated by <P~;':::;?~) <br /> <br /><'"!lleasurements and for the purpose of this investigation, <br /> <br />canal spillage is assumed to be a direct, non_loss, return <br /> <br />to the river system. <br /> <br />The evaporation from the canal surface is handled in the evapo- <br /> <br />transpiration computations. <br /> <br />Lateral diversions <br /> <br />Lateral diversions are made fro:m the supply canals to the <br /> <br />irrigated area and are depleted in the following manner: <br />