OptionalevaporationOptionalprecipitationFraction of clouds precipitated per cycle. Default 0.25.
OptionalrunoffFraction of moisture that drains downhill per cycle. Default 0.25.
OptionalseepageFraction of moisture that spreads to equal-elevation neighbors. Default 0.125.
OptionalcyclesNumber of simulation cycles. Default 40.
OptionalwindHEX_DIRECTIONS index from which the dominant wind blows (0=E,1=NE,2=NW,3=W,4=SW,5=SE). Default 2 (NW).
OptionalwindRelative strength of the dominant wind vs. uniform dispersal. Default 4.
OptionalstartingInitial moisture for all cells. Default 0.1.
OptionalelevationMaximum land elevation — used for rain shadow cloud cap. Default 12.
Fraction of moisture evaporated per cycle. Default 0.5.