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Conceptual marsh units for Assateague Island National Seashore and Chincoteague Bay, Maryland and Virginia

Dates

Publication Date

Citation

Defne, Z., and Ganju, N.K., 2018, Conceptual marsh units for Assateague Island National Seashore and Chincoteague Bay, Maryland and Virginia: U.S. Geological Survey data release, https://doi.org/10.5066/P92ZW4D9.

Summary

The salt marsh complex of Assateague Island National Seashore (ASIS) and Chincoteague Bay was delineated to smaller, conceptual marsh units by geoprocessing of surface elevation data. Flow accumulation based on the relative elevation of each location is used to determine the ridge lines that separate each marsh unit while the surface slope is used to automatically assign each unit a drainage point, where water is expected to drain through. 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, including the Assateague Island National Seashore and Chincoteague Bay salt marshes, with [...]

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Attached Files

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Shapefile: CMU_ASISp.zip
CMU_ASISp.CPG 5 Bytes
CMU_ASISp.dbf 2.02 MB
CMU_ASISp.png
“Browse graphic for the dataset.”
thumbnail 256.64 KB
CMU_ASISp.prj 425 Bytes
CMU_ASISp.sbn 61.5 KB
CMU_ASISp.sbx 2.41 KB
CMU_ASISp.shp 184.99 MB
CMU_ASISp.shx 51.2 KB
CMU_ASISp.sld 9.15 KB
CMU_ASISp.html
“CSDGM metadata in HTML format.”
69.24 KB
CMU_ASISp_metadata.txt
“CSDGM metadata in TEXT format.”
33.96 KB
CMU_ASISp.xml
“CSDGM metadata in XML format”
Original FGDC Metadata

View
33.33 KB

Purpose

These polygons were created to be used in evaluating the spatial variation of the response and resiliency of the salt marsh complex based on consistently defined marsh units while facilitating a better understanding of the relative importance of the processes involved.

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P92ZW4D9

Shapefile Extension

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