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Rate of shoreline change of marsh units in eastern Long Island salt marsh complex, New York (ver. 2.0, March 2024)

Dates

Publication Date
Time Period
2020
Revision
2024-03-12

Citation

Welk, R.J., Ackerman, K.V., Defne, Z., and Ganju, N.K., 2020, Coastal wetlands of eastern Long Island, New York (ver. 2.0, March 2024): U.S. Geological Survey data release, https://doi.org/10.5066/P91H426U.

Summary

This data release contains coastal wetland synthesis products for the geographic region of eastern Long Island, New York, including the north and south forks, Gardiners Island, and Fishers Island. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, mean tidal range, and shoreline change rate 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, [...]

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Attached Files

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ShCR_ELI_browse.png
“Linear regression rate of shoreline change of marsh units overlaying ESRIbasema”
thumbnail 219.71 KB image/png
Revision_History.txt
“Revision history.”
1.03 KB text/plain
Shapefile: mu_shoreline_ELI.zip
mu_shoreline_ELI.sld 7.03 KB
mu_shoreline_ELI.CPG 5 Bytes
mu_shoreline_ELI.dbf 298.56 KB
mu_shoreline_ELI.prj 425 Bytes
mu_shoreline_ELI.sbn 26.61 KB
mu_shoreline_ELI.sbx 1.12 KB
mu_shoreline_ELI.shp 30.54 MB
mu_shoreline_ELI.shx 21.6 KB

Purpose

Analysis of shoreline change rates is part of a comprehensive assessment to identify the factors and their weights in determining the vulnerability and resiliency of salt marshes. This polygon dataset facilitates quantifying these rate changes in the eastern Long Island salt marsh complex by summarizing the results over the previously determined conceptual salt marsh unit polygons.

Additional Information

Shapefile Extension

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