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<br /> <br />A. Watershed; <br /> <br />Geometry <br />Topography <br />Road location <br />Snowmelt rate <br />Soil type <br />Geology <br />Vegetation <br /> <br />B. Surface Water Hydrology: <br /> <br />Discharge records <br />Stage records <br />Stage-discharge relationships <br />Flood frequency curves <br />Flow duration curves <br />Design flood hydrograph <br />Sediment transport data (if available) <br />Ti da 1 waves <br /> <br />C. Cross-sectional Data: <br /> <br />Location map <br />HEC-2 cross-sectional data covering the study area <br /> <br />D. Bed and Bank Material: <br /> <br />Size <br />Size distribution <br />Banks (stratified or homogeneous) <br /> <br />E. Structural Data: <br /> <br />Dam <br />Hydroelectric facility <br />Bridge <br />Construction plans <br /> <br />F. Geological Control Data: <br /> <br />Rock outcropping <br />Narrow section <br />Manmade control <br /> <br />The additional data requirements for a thermal study include: <br /> <br />Incoming solar radiation <br />Atmospheric radiation <br />Air temperature <br />Relative humidity <br />Wind speed <br />Water surface elevation <br />Upstream inflow rates to the reservoir and temperature <br /> <br />11 <br />