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  3. Slope Values Across Marsh-Forest Boundary in Chesapeake Bay Region, USA

Slope Values Across Marsh-Forest Boundary in Chesapeake Bay Region, USA

Dates

Publication Date
Time Period
2020

Citation

Molino, G.D., Defne, Z., Ganju, N.K., Carr, J.A., Guntenspergen, G.R., and Walters, D.C., 2020, Slope values across marsh-forest boundary in Chesapeake Bay region, USA: U.S. Geological Survey data release, https://doi.org/10.5066/P9EJ6PGT.

Summary

The marsh-forest boundary in the Chesapeake Bay was determined by geoprocessing high-resolution (1 square meter) land use and land cover data sets. Perpendicular transects were cast at standard intervals (30 meters) along the boundary within a GIS by repurposing the Digital Shoreline Analysis System (DSAS) Version 5.0, an ArcGIS extension developed by the U.S. Geological Survey. Average and maximum slope values were assigned to each transect from surface elevation data. The same values were also provided as points at the center of the transect where it crossed over the boundary. The slope values across the marsh-forest transition zone and at the boundary itself provide comprehensive data layers for local, state, and Federal managers [...]

Contacts

Point of Contact :
Zafer Defne
Originator :
Grace D Molino, Zafer Defne, Neil Kamal Ganju, Joel A Carr, Glenn R Guntenspergen, David C Walters
Publisher :
U.S. Geological Survey
Data Owner :
Woods Hole Coastal and Marine Science Center
Distributor :
U.S. Geological Survey - ScienceBase
SDC Data Owner :
Woods Hole Coastal and Marine Science Center
USGS Mission Area :
Natural Hazards

Attached Files

Click on title to download individual files attached to this item.

SlopeTransectsandPoints.xml
“CSDGM metadata.”
Original FGDC Metadata
View 		37.72 KB application/fgdc+xml
SlopeTransectsandPoints.png
“Graphic shows slope transects and points overlaying Esri basemap” 		thumbnail 7.37 MB image/png
TRANSECTS_CBslope.zip
“Slope transects shapefile” 		60.69 MB application/zip
POINTS_CBslope.zip
“Slope points shapefile” 		7.29 MB application/zip

Purpose

The slope was determined at 30-meter resolution across the marsh-forest boundary in the Chesapeake Bay region to better understand the factors influencing the process of salt marsh ecosystems migrating into coastal forests.
Graphic shows slope transects and points overlaying Esri basemap
Graphic shows slope transects and points overlaying Esri basemap

Map

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Communities

  • USGS Chesapeake Bay
  • USGS Data Release Products
  • Woods Hole Coastal and Marine Science Center

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Provenance

Additional Information

Identifiers

Type Scheme Key
DOI https://www.sciencebase.gov/vocab/category/item/identifier doi:10.5066/P9EJ6PGT

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