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The Advisory 1-Percent Water Surface Elevation (WSEL) Grid is intended to serve as the best available data for understanding riverine and coastal flood hazard risk and the elevations that communities should build in order to protect themselves from future riverine and coastal flood events. It serves as an auxiliary dataset to the 1-Percent Advisory Base Flood Elevation lines to assist users in determining exact watershed elevation values at the spatial resolution of the grid. |
| summary:
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The Advisory 1-Percent Water Surface Elevation (WSEL) Grid is intended to serve as the best available data for understanding riverine and coastal flood hazard risk and the elevations that communities should build in order to protect themselves from future riverine and coastal flood events. It serves as an auxiliary dataset to the 1-Percent Advisory Base Flood Elevation lines to assist users in determining exact watershed elevation values at the spatial resolution of the grid. |
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| typeKeywords:
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["Data","Service","Image Service","ArcGIS Server"] |
| description:
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<DIV STYLE="text-align:Left;"><DIV><P><SPAN>The Federal Emergency Management Agency (FEMA) has developed the Advisory 1-Percent Water Surface Elevation (WSEL) Grid to approximate the elevation values of the Advisory 1-Percent Annual-Chance Flood event. These grid data are presented with a spatial resolution (cell size) of 10 feet by 10 feet (equal to approximately 3.048 meters by 3.048 meters), with cell values representing the water surface elevation values in meters above the Puerto Rico Vertical Datum of 2002 (PRVD02).</SPAN></P></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><P><SPAN>This product is not be used as information to support regulatory floodplain designation or insurance ratings. Use of data is to provide the FEMA with guidance to disseminate to communities rebuilding after Hurricane Maria. The advisory elevations do not include freeboard and/or any additional safety factor to account for potential future increases of the coastal flood hazard due to sea level rise. Advisory mapping information was not adjusted to provide a seamless tie to any existing hazard Flood Insurance Study (FIS) mapping in adjacent areas.</SPAN></P></DIV></DIV> |
| catalogPath:
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| title:
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PuertoRico_1PCT_Water_Surface_Elevation |
| type:
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Image Service |
| url:
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https://hazards.geoplatform.gov/server |
| tags:
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["flood map","water surface elevation","environment","oceans","rivers","boundaries","FEMA","Puerto Rico","Culebra","Vieques"] |
| culture:
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en-US |
| name:
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PuertoRico_1PCT_Water_Surface_Elevation |
| guid:
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| spatialReference:
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NAD_1983_StatePlane_Puerto_Rico_Virgin_Islands_FIPS_5200 |