modules_Volumetric (08/20/09)

Volumetric

Observations

• none

Variables

• Volumetric () - fractional volumetric soil moisture and equals (soil_moist[hh]/soil_Depth[hh] + SetSoilproperties[soiltype[hh]][1])/1000.0).

Parameters

• soil_Depth (m) - soil column depth.
• soil_type () - soil column. 0 - 12, water/sand/loamsand/sandloam/loam/siltloam/sasclloam/clayloam/siclloam/sandclay/siltclay/clay/pavement.
• set_fallstat () - Julian day when the fallstat parameter is set from the current soil moisture

    The following parameters are set by this module from the above information and need not be set.

• fallstat () - percentage of pore space holding water and equals Volumetric*100.0.

Variable Inputs

• soil_moist (*) (mm) - from module Soil etc.

Notes

1. During the first interval of execution,  if set_fallstat is greater than the current Julian date, fallstat is set.  Otherwise, only on the last interval of the actual Julian date.