Conceptual marsh units for Cape Cod National Seashore salt marsh complex, Massachusetts
Dates
Publication Date
2019-03-04
Citation
Defne, Z., and Ganju, N.K., 2019, Conceptual marsh units for Cape Cod National Seashore salt marsh complex, Massachusetts: U.S. Geological Survey data release, https://doi.org/10.5066/P955K1Y2.
Summary
Note: The 2021 data release "Geospatial characterization of salt marshes for Massachusetts" is a more recent and comprehensive MA salt marsh dataset. (https://doi.org/10.5066/P97E086F) The salt marsh complex of Cape Cod National Seashore (CACO), Massachusetts, USA and approximal wetlands were 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 [...]
Summary
Note: The 2021 data release "Geospatial characterization of salt marshes for Massachusetts" is a more recent and comprehensive MA salt marsh dataset. (https://doi.org/10.5066/P97E086F)
The salt marsh complex of Cape Cod National Seashore (CACO), Massachusetts, USA and approximal wetlands were 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. The intent is to provide federal, state, and local managers with tools to estimate their vulnerability and ecosystem service potential. For this purpose, the response and resilience of coastal wetlands to physical factors need to be assessed in terms of the ensuing change to their vulnerability and ecosystem services. CACO is one of the selected domains to expand this study.
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Shapefile:
CMU_CACOp.zip
CMU_CACOp.xml “CSDGM metadata in XML format” Original FGDC Metadata
View
35.28 KB
CMU_CACOp.html “CSDGM metadata in HTML format”
67.78 KB
CMU_CACOp.png “Graphic that shows conceptual marsh units for CACO salt marsh complex”
222.18 KB
CMU_CACOp.prj
425 Bytes
CMU_CACOp.sbn
10.24 KB
CMU_CACOp.sbx
564 Bytes
CMU_CACOp.sld
9.15 KB
CMU_CACOp_metadata.txt “CSDGM metadata in TEXT format”
32.91 KB
CMU_CACOp.dbf
324.17 KB
CMU_CACOp.cpg
5 Bytes
CMU_CACOp.shp
38.98 MB
CMU_CACOp.shx
8.12 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.
Preview Image
Graphic that shows conceptual marsh units for CACO salt marsh complex