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INTERPRETATION OF “RESTRICTED VALIDITY” IRRIGATION PERMITS IN THE SVARTÅ RIVER BASIN, SWEDEN 1
Author(s) -
Castensson Reinhold,
Goulter Ian C.
Publication year - 1988
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1988.tb03033.x
Subject(s) - irrigation , measure (data warehouse) , structural basin , hydrology (agriculture) , water resource management , drainage basin , environmental science , interpretation (philosophy) , computer science , geology , geography , cartography , geotechnical engineering , data mining , ecology , paleontology , biology , programming language
Irrigation permits in the Svartå River basin, Sweden, are issued with restricted validities by which irrigation is permitted only in those periods when the release from the primary regulation facility in the basin is greater than 2.0 m 3 /s. A “risk” measure describing the expected total duration of periods in which irrigation will not be permitted in the basin under a range of conditions has been formulated and applied to the basin. The measure recognizes only the period for which irrigation is not permitted and does not consider water availability as it is not a factor in this case. Comparison of the measure with a previously proposed approach shows that it provides a better measure of system behavior. The new measure is particularly useful for transferring to the nontechnical water user or manager an understanding of how well the overall irrigation system can be expected to perform.