PF Suffolk
Vector polygons of the 10%, 2%, 1% and 0.2% annual-chance flood frequencies, also known as the 10-, 50-, 100- and 500-year flood return intervals. Sourced from geospatial modeling of the Water Surface Elevation Models against the study Topographic Elevation Models. Coverages were post-processed to remove processing artifacts and to smooth boundary edges. Disconnected areas shown as flooded in the raw output were retained or removed as deemed reasonable by a visual hydraulic connectivity analysis using topography and aerial photography. A separate coverage was created for each SLR scenario and flood frequency, which can be identified from the coverage name, formatted as XXX_YY_ZZZ, where XXX is the geographic area, YY is the SLR scenario in inches, and ZZZ is the flood frequency.
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