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<br />HEC-l INPUT DESCRIPTION <br />LOSS RATE DATA (L Cards) <br /> <br />10.3 LM CARD - HEC EXPONENTIAL SNOWMELT LOSS RATE <br /> <br />This card is used in conjunction with the LE or LU cards to compute <br />the loss rate for snowmelt. <br /> <br />FIELD <br /> <br />VARIABLE <br /> <br />VALUE <br /> <br />. <br /> <br />Col 1+2 ID <br /> <br />LM <br /> <br />.. <br /> <br />1 <br /> <br />STRKS <br /> <br />+,0 <br /> <br />DESCRIPTION <br /> <br />Card identification. <br /> <br />Initial value of STRKS in inches(hour <br />(mm/hr) for HEC exponential snowmelt loss <br />rate function. When used with LE card, or <br />uniform meltwater loss rate, inches(hour <br />(IIIID/hour) when used with LU card. If doing <br />an optimization (OU card) this variable will <br />not be optimized and will be fixed at this <br />value. <br /> <br />-1 For optimization only (OU card previously <br />supplied), program assumes a starting VALUE <br />and then optimizes. <br /> <br />2 <br /> <br />RTIOK <br /> <br />0,+ <br />or - <br /> <br />\ <br /> <br /><; <br /> <br />For optimization only (OU card previously <br />supplied), program uses this (after sign <br />change) as the starting VALUE for the <br />optimization. <br /> <br />Rate of change of the snowmelt loss-rate <br />parameter computed as the ratio STRKS to a <br />value of STRKS after 10 inches (10 mm) of <br />accumulated loss. See Field 1 for the <br />meaning of VALUE. Not used for uniform <br />meltwater loss rate. <br /> <br />Page 39 <br />