_RL exf_inscal_snowprecip
& exf_inscal_snowprecip,
I exf_inscal_snowprecip,
I snowprecipperiod, exf_inscal_snowprecip, snowprecipconst,
& exf_inscal_runoff, exf_inscal_apressure, exf_inscal_snowprecip,
exf_inscal_snowprecip= 1. _d 0