How Does the Green Ampt Initial Moisture Defiict Work in InfoSWMM and SWMM 5?
Subject: How Does the Green Ampt Initial Moisture Defiict Work in InfoSWMM and SWMM 5? This graph shows the values of the internal SWMM 5 parameters for Green Ampt Infiltration for the pervious area of a Subcatchment during a simulation. The parameters are: · Soil Moisture = IMD Max – ( FUMax – FU )/ Upper Soil Zone Depth · FU or current moisture content of the upper zone of the of the soil · FUMax which is the saturated moisture content of the upper zone in feet and stays constant during the simulation · IMD Max is the user defined Initial soil moisture deficit and is a...