| 释义 |
precipitation-evaporation ratio precipitation-evaporation ratio[prə‚sip·ə′tā·shən i‚vap·ə′rā·shən ‚rā·shō] (climatology) For a given locality and month, an empirical expression devised for the purpose of classifying climates numerically on the basis of precipitation and evaporation. Abbreviated P-E ratio. Also known as precipitation effectiveness. |