DROUGHT IN SAHARA - BIOGEOPHYSICAL FEEDBACK MECHANISM
DROUGHT IN SAHARA - BIOGEOPHYSICAL FEEDBACK MECHANISM
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DOI：
10.1126/science.187.4175.434
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发表时间：
1975-01-01
期刊：
影响因子：
56.9
通讯作者：
QUIRK, WJ
中科院分区：
文献类型：
--
作者：
CHARNEY, J;STONE, PH;QUIRK, WJ
全球大气环流模式的两个积分，仅在撒哈拉沙漠规定的地表反照率不同，表明植物覆盖率减少导致的反照率增加导致降雨量减少。因此，任何植物覆盖率下降的趋势都会因降雨量的减少而加强，并可能引发或持续干旱。
Two integrations of a global general circulation model, differing only in the prescribed surface albedo in the Sahara, show that an increase in albedo resulting from a decrease in plant cover causes a decrease in rainfall. Thus any tendency for plant cover to decrease would be reinforced by a decrease in rainfall, and could initiate or perpetuate a drought.