CLIMATIC VARIATION AND SURFACE WATER RESOURCES IN THE GREAT BASIN REGION1
作者:
Irmgard Flaschka,
C. W. Stockton,
W. R. Boggess,
期刊:
JAWRA Journal of the American Water Resources Association
(WILEY Available online 1987)
卷期:
Volume 23,
issue 1
页码: 47-57
ISSN:1093-474X
年代: 1987
DOI:10.1111/j.1752-1688.1987.tb00783.x
出版商: Blackwell Publishing Ltd
关键词: Great Basin;surface runoff;climatic change;atmospheric CO2;water supply
数据来源: WILEY
摘要:
ABSTRACT:There is mounting evidence that increasing amounts of atmospheric carbon dioxide may lead to significant changes in global climate during the next century. The possible effects of such climatic changes on surface runoff in the Great Basin Region of the western United States has been investigated by applying water balance models to four watersheds in Nevada and Utah. The most probable change, a 2°C increase in average annual temperature coupled with a 10 percent decrease in precipitation, would reduce runoff from 17 to 28 percent of the present mean, with drier basins showing the greatest change. Decreasing precipitation by 25 percent causes runoff reductions of 33 to 51 percent. Equivalent changes to a cooler and wetter climate show corresponding increases in runoff of approximately the same magnitude, but such a shift is not considered likely. Based on projected water requirements for the year 2000, a change to a warmer and drier climate would cause severe water shortages in many parts of the Great Basin
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