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Linear Ditches of Northeastern U.S. Coastal Marshes from Maine to Virginia Derived from 2023 2D Aerial Imagery Basemap

Dates

Publication Date

Citation

Peck, E.K., Walker, J.E., Woodruff, J.D., and Ganju, N.K., 2024, Linear Ditches of Northeastern U.S. Coastal Marshes from Maine to Virginia Derived from 2023 2D Aerial Imagery Basemap: U.S. Geological Survey data release, https://doi.org/10.5066/P13WF8ZT.

Summary

Salt marshes of the Northeastern United States (Maine to Virginia) are vulnerable to loss given their history of intensive human alteration. One direct human modification – ditching – was common across the Northeast for salt hay farming since European Colonization and for mosquito control in the first half of the 20th century. We hand-digitized linear ditches across Northeastern intertidal emergent wetlands from contemporary aerial imagery within the bounds of the National Wetland Inventory's Estuarine Intertidal Emergent Wetland areas.

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Attached Files

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Shapefile: NortheastUSDitches_Polyline.zip
NortheastUSDitches_Polyline.cpg 5 Bytes
NortheastUSDitches_Polyline.dbf 5.71 MB
NortheastUSDitches_Polyline.prj 425 Bytes
NortheastUSDitches_Polyline.sbn 1.44 MB
NortheastUSDitches_Polyline.sbx 16.28 KB
NortheastUSDitches_Polyline.shp 29.01 MB
NortheastUSDitches_Polyline.shp.xml 22.42 KB
NortheastUSDitches_Polyline.shx 1.17 MB

Purpose

These data can be used to identify the presence and severity of ditching across Northeastern US intertidal emergent wetlands.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P13WF8ZT

Shapefile Extension

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