Baselines used to calculate rate of shoreline change statistics for New York State coastal wetlands
Dates
Publication Date
2019-04-02
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 displays baselines used to calculate shoreline rate of change statistics for New York State coastal wetlands. Analysis was performed in ArcMap 10.5.1 using the Digital Shoreline Analysis System (DSAS), created by U.S. Geological Survey, version 5.0, and polyline vector historical shorelines from the National Oceanic and Atmospheric Administration (NOAA) . The baselines used in the analysis serve as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing intersection measurement points, which were then used to calculate the rates. U.S. Fish and Wildlife National Wetland Inventory polygon vector data provided extents of coastal wetland boundaries, [...]
Summary
This data set displays baselines used to calculate shoreline rate of change statistics for New York State coastal wetlands. Analysis was performed in ArcMap 10.5.1 using the Digital Shoreline Analysis System (DSAS), created by U.S. Geological Survey, version 5.0, and polyline vector historical shorelines from the National Oceanic and Atmospheric Administration (NOAA) . The baselines used in the analysis serve as the originating point for the orthogonal transects cast by the DSAS software. The transects intersect each shoreline establishing intersection measurement points, which were then used to calculate the rates. U.S. Fish and Wildlife National Wetland Inventory polygon vector data provided extents of coastal wetland boundaries, and determined where baselines were drawn. Baselines were then constructed parallel to NOAA shoreline vectors. Baselines were manually created using standard ArcMap 'Create Features' tools, and do not represent real-world features.
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NYS_wetland_baselines_FGDC.xml “Metadata XML” Original FGDC Metadata
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16.05 KB
application/fgdc+xml
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NYS_wetland_baselines.zip “Shapefile ZIP”
1.14 MB
Purpose
This data set is part of a cooperative agreement between USGS and New York State Department of Environmental Conservation to assess coastal 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. For coastal wetlands, erosion along the water boundary causes a loss of ecosystem services, such as habitat provision, carbon storage, and wave attenuation.
