For the Coastal Sector we created a series of maps to define the demographic make-up of population at risk from sea-level rise. Six study areas were chosen to review, Coney Island, Rockaway, the Battery, Westhampton, in New York and Asbury Park and Sea Bright in New Jersey.
To create the maps we created five-foot contour intervals from 7.5-minute quadrangle Digital Elevation Models and over laid the contours on the Census tracts for the areas. The Census tract boundaries are not very accurate. For example, tracts that depict coastal areas very often extend well into the ocean. The zero elevation contours was assumed to be the base shoreline. A considerable amount of editing the census tracts was needed to bring the tracts into conformity with the shorelines. Three thematic maps were generated for each site using the demographic variables from the 1990 census, Population Per Square Mile, Average Household Income and Average Housing Values. Contours lines for the 5, 10 and 15-foot elevations were placed over the classified census tracts. The resulting maps give a sense of the social composition of populations living near the coasts and most likely to be subjected to sea-level rise and increased frequency and severity of coastal storm events.
To view the Costal Sector Maps:
For the Public Health sector we have employed GIS technology to compile data sets on several diseases and map their spatial distribution. Maps for all the following have been created:
We are also are planning to use the GIS to map the spatial and temporal correspondence between ground level ozone and asthma rates. Maps will be created to show the potential increases in these diseases based of environmental change as predicted by internationally recognized Global Climate Change Models.
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