humidity coefficient

humidity coefficient

[hyü′mid·əd·ē ‚kō·i′fish·ənt]
(meteorology)
A measure of the precipitation effectiveness of a region; it recognizes the exponential relationship of temperature versus plant growth and is expressed as humidity coefficient = P /(1.07) t , where P is the precipitation in centimeters, and t is the mean temperature in degrees Celsius for the period in question; the denominator approximately doubles with each 10°C rise in temperature.
References in periodicals archive ?
On the same diagram the gravimetric water content W (gravimetric moisture content in percent, the lines leaving the left bottom top) and humidity coefficient (degree) [S.