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Unvegetated to vegetated ratio of marsh units in north shore Long Island 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 north shore Long Island, New York: U.S. Geological Survey data release, https://doi.org/10.5066/P9UNOMM8.

Summary

This data release contains coastal wetland synthesis products for the geographic region of north shore Long Island, 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 potential [...]

Contacts

Attached Files

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UVVR_NSLI_browse.png
“UVVR overlaying Esri basemap”
thumbnail 291.6 KB image/png
Shapefile: mu_UVVR_NSLI.zip
mu_UVVR_NSLI.cpg 5 Bytes
mu_UVVR_NSLI.dbf 105.69 KB
mu_UVVR_NSLI.prj 425 Bytes
mu_UVVR_NSLI.sbn 13.41 KB
mu_UVVR_NSLI.sbx 612 Bytes
mu_UVVR_NSLI.shp 11.97 MB
mu_UVVR_NSLI.shx 10.92 KB
mu_UVVR_NSLI.sld 9.37 KB

Purpose

The purpose of this shapefile is to calculate the ratio of unvegetated area to vegetated area (UVVR) in each marsh unit. Analysis of unvegetated to vegetated marsh ratio is part of a comprehensive assessment to identify the factors and their weights in determining the vulnerability and resiliency of salt marshes. An unvegetated area to vegetated area ratio was defined as a potential indicator of the current state of a salt marsh unit. UVVR was calculated based on U.S. Department of Agriculture National Agriculture Imagery Program (NAIP) 1-meter

Additional Information

Shapefile Extension

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