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<br />Program Language: <br />Memory Requirement (limit): <br /> <br />Special Library Functions: <br />Printer Positions: <br /> <br />Tape Assignments: Tape 1: <br /> Tape 2: <br /> Tape 5: <br /> Tape 6: <br /> Tape 20: <br /> <br />Storage Devices (permanent): <br /> <br />Specific Capabilities <br /> <br />FORTRAN IV (ANSI standard) <br /> <br />470,000 words (octal) of core (word <br />size - 60 bits) <br /> <br />None <br /> <br />132 <br /> <br />Grid cell data bank <br /> <br />Single event damages <br /> <br />Standard card input <br /> <br />Standard line printer <br /> <br />File that may be aaved or paased to AIODTA <br />(ATODTA included in Section 5 of this <br />document) <br /> <br />3 magnetic tapes or disk units <br /> <br />Methods of computing the flood damage potential of a stream system require <br />the development of elevation-damage functions at selected damage reach index <br />locations throughout the system. The elevation-damage functions are then <br />integrated with hydrologic flOW-frequency and flow-elevation data to compute <br />the value of expected annual damage (U.S. Army Corps of Engineers, 1977). <br />Damage reaches are defined to capture economic and hydrologic variation that <br />occur in the systea. Usually elevation (or stage)-damage relationships are <br />developed for each individual structure, the associated value of the contents, <br />and an optional damage category called "other" within the dalUge reach of <br />interest. The damage functiona are then aggregated to an index location by <br />adjusting elevation related data to account for the slope of the water sur- <br />face profile in a particular reach. <br /> <br />The technique developed for automatically generating elevation-damage func- <br /> <br /> <br />tions in the DAKCAL computer program adapts the traditional method to grid <br /> <br />cell data bank concepts. The ~thodology, in general, consists of construc- <br /> <br />ting a unique elevation-damage relationship for each grid cell within the <br /> <br /> <br />flood plain based on topographic data (ground elevations) and land use, and <br /> <br />4-5 <br />