20230801 08300800 1.0 TRUE 150000000 5000 ItemDescription Coastal Gages DCR VFRIS Flooding Floodplains Virginia VA FEMA NFIP NFHL Location and attributes of coastal gages. Updated on 20230710. <DIV STYLE="text-align:Left;"><DIV><P><SPAN>The S_Cst_Gage layer is required when gage information (from tide, wind or buoy stations) is used in the determination or to support flood height calculations. Specifically, this table is required in the following situations: when tide gage information is used to support the calibration and validation of hydrodynamic models; when tide gage information is used in the determination of flood elevations by statistical analyses of annual extrema; when wave buoy data provides information regarding the wave climate in the Flood Risk Project area; when wave buoy data has been used in the estimation of offshore wave conditions; for calibration and validation of a numerical wave model and when data from wind stations has been used for water level hindcasts or wave estimation. Wave heights, wave period and spectral parameters computed during the Flood Risk Project must be compared with observed data from wave buoys whenever possible. The S_Cst_Gage table contains information about coastal gages for the Flood Risk Project area. The spatial location of these gages may be some distance from the areas for which coastal flood hazards were determined. This information is needed for the Tide Gage Analysis Specifics table in the FIS Report. The spatial entities representing the coastal gages are points. </SPAN></P></DIV></DIV> 20250724