Weather Station Siting and Consumptive Use Estimates
Publication: Journal of Water Resources Planning and Management
Volume 109, Issue 2
Abstract
The environment of a weather station site is important in estimating consumptive use by irrigated crops. Consumptive use may be overestimated when air temperature and vapor pressure data from a weather station with an arid local environment are used without modification. To document the effect of weather station aridity on consumptive use estimates, three sites in irrigated areas and two sites in nonirrigated, arid rangeland in southern Idaho were instrumented with weather stations during 1981. Air temperatures were higher and vapor pressures were lower at the arid sites. Use of air temperatures and dewpoint estimates from arid sites caused an overestimation of by 17% (210 mm) over the irrigation season. Results indicate the importance of weather site evaluation and adjustment of siting effects and weather before consumptive use estimates are made. A procedure is outlined for adjusting historical temperature data to reflect an irrigated condition.
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Published In
Journal of Water Resources Planning and Management
Volume 109 • Issue 2 • April 1983
Pages: 134 - 136
Copyright
Copyright © 1983 ASCE.
History
Published online: Apr 1, 1983
Published in print: Apr 1983
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