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Last modified
1/26/2010 10:09:46 AM
Creation date
10/5/2006 4:28:38 AM
Metadata
Fields
Template:
Floodplain Documents
County
Statewide
Community
Dallas, Texas
Basin
Statewide
Title
Effects of Urbanization on Floods in the Dallas Texas Metropolitan Area
Date
1/1/1974
Prepared By
USGS, City of Dallas
Floodplain - Doc Type
Educational/Technical/Reference Information
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<br />ANTECEDENT- MOISTURE INFilTRATION ROUTING <br />ACCOUNTING COMPONENT COMPONENT COMPONENT <br /> INPUT DATA <br />Daily rainfall Unit rainfall Rainfall excesses <br />Daily pan evaporation BMS {from pervious area infil- <br />(from moisture fration and impervious <br /> SMS accounting area retention component) <br />Initial estimates companent) <br /> COMPUTATIONAL OPERATION AND PARAMETERS <br />Saturoted- unsaturated Average pervious area Instantaneous hydrographs <br />soil moisture levels for infi I'ration and impervious from pervious and imperi- <br />pervious area area retention aus areas <br /> ~~ <br /> o Pervious ::. ~ <br />Parameter Variable L.~JIDJ <br />EVC BMS Impervious <br /> RR SMS " ..,..., r-, <br />BMSM , C <br />DRN PARAMETER - co <br /> 0 <br /> '" ~CI <br /> SWF E ~ c <br /> 0_ <br /> ~ - 0._ .<= <br /> KSAT '" 0" <br /> ~ '" ~ ~ 0 0. <br /> ~ u E 0. ~ 0 <br /> RGF '" c >-'" a. <br /> u E ~ .c'" ~ <br /> >< '" 0 <br /> '" ~ co ~ " <br /> " E 00 >- <br /> - ~ ".;::1;; .<= <br /> C >- .- 0, <br /> - .c .<= " ~ " <br /> c 0 co " 0 <br /> '" ~'" <br /> " " ~ _c 0 <br /> c:: ...J " <(= "- <br /> Parameter <br /> TC <br /> KSW <br /> OUTPUT DATA <br />Variable <br />BMS- Bose-moisture storage <br />available Rainfe II excess Discharge <br />5MS - Surface-moisture con- <br />tent from infiltration <br /> <br />FIGURE 2.-Schematic diagram of the hydrologic madel <br />-6- <br />
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