index of aridity
index of aridity
[′in‚deks əv ə′rid·əd·ē] (climatology)
A measure of the precipitation effectiveness or aridity of a region, given by the following relationship: index of aridity = P /(T + 10), where P is the annual precipitation in centimeters, and T the annual mean temperature in degrees Celsius.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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