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Rate of shoreline change statistics for New York State coastal wetlands

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Publication Date

Citation

Welk, R.J., 2019, Rate of shoreline change statistics for New York State coastal wetlands: U.S. Geological Survey data release, https://doi.org/10.5066/P9JVMLFT.

Summary

This data set contains shoreline rate of change statistics for New York State coastal wetlands. Analysis was performed using the Digital Shoreline Analysis System (DSAS), created by U.S. Geological Survey, version 5.0, an extension for ArcMap. A reference baseline was used as the originating point for orthogonal transects cast by the DSAS software. The transects intersect each polyline vector shoreline establishing intersection measurement points, which were then used to calculate the rates of change. End-point rates, calculated by dividing the distance of shoreline movement by the time elapsed between the oldest and the most recent shoreline, were generated for wetlands where fewer than three historic shorelines were available. Linear [...]

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Extension: NYS_wetland_shorelinechange.zip
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“New York State coastal wetland study area”
thumbnail 11.37 KB

Purpose

This data set is part of a cooperative agreement between USGS and New York State Department of Environmental Conservation to assess saltwater wetland vulnerability within the state. Monitoring shoreline change enables quantification of land loss or gain over time, determined by the balance between erosion and accretion along coasts. Metrics such as this are valuable to management decision makers in evaluating long term wetland viability. In the case of salt marshes, erosion along the water boundary causes a loss of ecosystem services, such as habitat provision, carbon storage, and wave attenuation.

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Type Scheme Key
doi https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9JVMLFT

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