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Elevation of marsh units in Jamaica Bay to western Great South Bay salt marsh complex, New York

Dates

Publication Date
Time Period
2019

Citation

Welk, R., Defne, Z., and Ganju, N.K., 2019, Coastal wetlands from Jamaica Bay to western Great South Bay, New York: U.S. Geological Survey data release, https://doi.org/10.5066/P9GAGLXB.

Summary

This data release contains coastal wetland synthesis products for the geographic region from Jamaica Bay to western Great South Bay, located in southeastern New York State. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and mean tidal range, are calculated for smaller units delineated from a Digital Elevation Model, providing the spatial variability of physical factors that influence wetland health. Through scientific efforts initiated with the Hurricane Sandy Science Plan, the U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent of providing Federal, State, and local managers with tools to estimate [...]

Contacts

Attached Files

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elev.png
“Browse Graphic”
thumbnail 261.19 KB
Shapefile: mu_elev_JB.zip
mu_elev_JB.cpg 5 Bytes
mu_elev_JB.dbf 217.64 KB
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mu_elev_JB.sbn 24.32 KB
mu_elev_JB.sbx 1.65 KB
mu_elev_JB.shp 16.5 MB
mu_elev_JB.shx 19 KB
mu_elev_JB.sld 13.65 KB

Purpose

The purpose of this shapefile is to calculate mean elevation for each marsh unit and its vegetated component. Analysis of marsh elevation is part of a comprehensive assessment to identify the factors and their weights in determining the vulnerability and resiliency of salt marshes. Elevation distribution in the Jamaica Bay to western Great South Bay salt marsh complex is given in terms of mean elevation of conceptual marsh units. The elevation data is based on the 1-meter resolution National Elevation Database (NED).

Additional Information

Shapefile Extension

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