Definitions for "Effective precipitation"
The part of precipitation which produces runoff ; a weighted average of current and past precipitation correlating with runoff. It is also that part of the precipitation falling on an irrigated area which is effective in meeting the requirements of consumptive use.
That portion of total precipitation that becomes available for plant growth.
1) That part of the precipitation that produces runoff. 2) A weighted average of current and antecedent precipitation that is "effective" in correlating with runoff. 3) That part of the precipitation falling on an irrigated area that is effective in meeting the consumptive use requirements.