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Mapping vulnerability to SLR inundation helps in identifying areas at potential risk and in planning for climate-resilient communities. |
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Mapping vulnerability to SLR inundation helps in identifying areas at potential risk and in planning for climate-resilient communities. |
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Southeast Florida Regional Climate Change Compact Inundation Mapping & Vulnerability Assessment Work Group, South Florida Water Management District (SFWMD), NOAA’s National Ocean Service (NOS), in particular Coastal Services Center and CO-OPS. http://www.southeastfloridaclimatecompact.org//wp-content/uploads/2014/09/vulnerability-assessment.pdf |
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Regional SLR inundation vulnerability was mapped using a modified bathtub method recommended by NOAA CSC and agreed-to by the Compact. The traditional version of the bathtub method applies a flat, single-value water surface to the variable land surface. However, applying a single-value regional water surface across all of SE Florida was not deemed an appropriate approach by either NOAA or the Compact. Water level readings at NOAA stations along the SE Florida coast reveal considerable regional elevation differences. The modified approach entailed using a modeled, varying water tidal surface that takes into account the observed tidal datum variability in South Florida. Based on the Compact’s SLR projection for the SE FL region, the one foot scenario is predicted to occur between 2040-2070, 2 foot from 2060 – 2115 and 3 foot from 2075-2150.Uncertainty in the tidal surface and the elevation data is presented in two categories: (1) More likely to be inundated defined as 100-75% certainty of a given location having an elevation below sea level at high tide for a given scenario and (2) Possibly inundated defined as 25-74.9% certainty. |
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This data is intended to be used for planning purposes to identify infrastructure at risk and to develop adaptation strategies and policies for inclusion in the Regional Climate Action Plan to address these risks with the intent of becoming a more climate-resilient community. More complex modeling is necessary to refine predictive capability of actual inundation. Since this analysis was originally performed, several Counties have used extreme high tide events that occur in the fall of each year to ground truth select locations for inundation from rising seas.This analysis is based on land elevation only and does not consider flooding related to existing drainage issues, associated with rain events or that may be caused by tropical storm surge. It provides an overview highlighting locations that are low lying. Additional analysis and more sophisticated models would be required to determine hydrologic connections and actual surface water response to rising sea levels. |
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SLR.PB50_1FTSLR_ZPCLASS |
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["Palm Beach County","SLR","Sea Level Rise","PBC"] |
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en-US |
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