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Elevation of marsh units in Hudson Valley and New York City salt marsh complex, New York

Dates

Publication Date
Time Period
2020

Citation

Welk, R.J., Defne, Z., and Ganju, N.K., 2020, Coastal wetlands of Hudson Valley and New York City, New York: U.S. Geological Survey data release, https://doi.org/10.5066/P9XV0JMJ.

Summary

This data release contains coastal wetland synthesis products for the geographic region of Hudson Valley and New York City, New York. 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 the vulnerability and ecosystem service [...]

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elev_HvNYC_browse.png
“Elevation of marsh units overlaying Esri basemap”
thumbnail 267.22 KB image/png
Shapefile: mu_elev_HvNYC.zip
mu_elev_HvNYC.cpg 5 Bytes
mu_elev_HvNYC.dbf 112.18 KB
mu_elev_HvNYC.prj 425 Bytes
mu_elev_HvNYC.sbn 8.92 KB
mu_elev_HvNYC.sbx 348 Bytes
mu_elev_HvNYC.shp 3.86 MB
mu_elev_HvNYC.shx 7.68 KB
mu_elev_HvNYC.sld 7.75 KB

Purpose

The purpose of this shapefile is to calculate the 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 Hudson Valley and New York City salt marsh complex is given in terms of mean elevation of conceptual marsh units. The elevation data is based on the 1-meter resolution Coastal National Elevation Database (CoNED).
Elevation of marsh units overlaying Esri basemap
Elevation of marsh units overlaying Esri basemap

Map

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ScienceBase WMS

ScienceBase WFS

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  • USGS Data Release Products

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Additional Information

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