Data Sets

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Connecticut Sea Level Rise and Storm Surge Viewer Dataset

This dataset shows different flood maps with sea-level rise projections (1 foot and 20 inches), above the North American Vertical Datum of 1988 (NAVD88) along the Connecticut coastline and the adjacent inland.  This dataset contains storm surge extend of 10, 30, 100, and 500 year flood events with return interval or 10%, 3.33%, 1%, and 0.2% annual exceedance probability storms, as well as anticipated 20 inches of sea level rise by 2050.

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Connecticut Coastal Towns Nearshore Model Storm Surge and Wave Height Dataset

The FUNWAVE TVD model outputs of Super Storm Sandy and 1% annual exceedance probability (AEP) storm scenario for Branford, Norwalk, and New Haven, CT. This dataset contains the wave height, water elevation during the stated storms at a finer resolution considering the complex nearshore dynamic on the shore.

graph of water level related to return period

Connecticut Coastal Towns Storm Surge and Significant Wave Height Dataset

The study modeled Long Island Sound using a coupled coastal circulation and wave model (FVCOM-SWAVE) and hindcast 44 storms between 1950-2018. The dataset contains the empirical probability results that fit to Poisson-GPD distribution. The storm surge water level and significant wave heights for the specific event annual exceedance probability is provided for 24 Connecticut coastal towns.

graph of water level related to return period

Connecticut Flood Maps for Different Storm Annual Exceedance Probability/Return Intervals

The study modeled Long Island Sound using a coupled coastal circulation and wave model (FVCOM-SWAVE) and highest hindcast 44 storms between 1950-2018. The dataset contains the projected storm surge water levels of empirical probability results on the 2016 LIDAR topography data.

graph of water level related to return period

Zones of Shared Risk Maps

The dataset contains the map files for identified zones of shared risks and the elevation and topography, projected flood extent, ecological systems, structures, and roadways, land uses, and social characteristics for coastal towns of New Haven and Fairfield County.

graph of water level related to return period

Connecticut Coastal Towns Vulnerability Index Dataset

The dataset contains the contributor and vulnerability layers prepared in a spatial index model to demonstrate aggregated coastal vulnerability of the 24 Connecticut coastal towns.