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RISC Manual Version 4.0 <br /> Table H-7. Unique Input Parameters Required for the Green-Ampt Model <br /> (other parameters as defined previously) <br /> Parameters Definitions Units <br /> Ht wetting front suction(matnc potential) [see figure cm <br /> from Rawls(1989)] <br /> Ksat saturated hydraulic conductivity of vadose zone cm/sec <br /> Ksu unsaturated hydraulic conductivity of vadose zone cm/sec <br /> L distance from the bottom of the source to the water cm <br /> table,calculated as (depth to groundwater-depth <br /> to top of subsurface source/2 0) <br /> Ksu unsaturated hydraulic conductivity of vadose zone cm/sec <br /> t time for water to travel from center of source to d <br /> water table <br /> VS vertical seepage velocity cm/d <br /> chemical-specific de adation rate 1/d <br /> The only "nein' input parameters required for Green-Ampt the saturated <br /> hydraulic conductivity and the wetting front suction The remainder of the <br /> above input parameters are calculated from the previously defined <br /> parameters <br /> i <br /> H-24 <br />