_RL exf_inscal_runoff
& exf_inscal_runoff,
I exf_inscal_runoff,
I runoffperiod, exf_inscal_runoff, runoffconst,
& exf_inscal_runoff, exf_inscal_apressure, exf_inscal_snowprecip,
exf_inscal_runoff = 1. _d 0