Skip to main content
  1. ScienceBase Catalog
  2. USGS Data Release Products
  3. Geospatial characterization of salt marshes in Chesapeake Bay
  4. Conceptual marsh units of Chesapeake Bay salt marshes

Conceptual marsh units of Chesapeake Bay salt marshes

Dates

Publication Date

Citation

Ackerman, K.V., Defne, Z., and Ganju, N.K., 2022, Geospatial characterization of salt marshes in Chesapeake Bay: U.S. Geological Survey data release, https://doi.org/10.5066/P997EJYB.

Summary

This data release contains coastal wetland synthesis products for Chesapeake Bay. Metrics for resiliency, including unvegetated to vegetated ratio (UVVR), marsh elevation, and tidal range are calculated for smaller units delineated from a digital elevation model, providing the spatial variability of physical factors that influence wetland health. The U.S. Geological Survey has been expanding national assessment of coastal change hazards and forecast products to coastal wetlands with the intent of providing federal, state, and local managers with tools to estimate the vulnerability and ecosystem service potential of these wetlands. For this purpose, the response and resilience of coastal wetlands to physical factors need to be assessed [...]

Contacts

Point of Contact :
Kate V Ackerman
Author :
Kate V Ackerman, Zafer Defne, Neil Kamal Ganju
Data Owner :
Woods Hole Coastal and Marine Science Center
USGS Program :
Coastal and Marine Hazards and Resources Program
Publisher :
United States Geological Survey
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.

CMU_CB.xml
Original FGDC Metadata
View 		51.73 KB application/fgdc+xml

“GeoPackage file (zipped)” 		1.15 GB application/zip
CB_regions.png
“Map of analysis regions” 		thumbnail 931.05 KB image/png
CMU_CB_Browse.png
“Conceptual marsh units in Chesapeake Bay.” 		thumbnail 4.43 MB image/png
Extension: CMU_CB.zip
CMU_CB.sd 202.55 MB
thumbnail.png thumbnail 4.16 KB

Purpose

These polygons were created to be used in evaluating the spatial variation of the response and resiliency of salt marsh complexes based on consistently defined marsh units while facilitating a better understanding of the relative importance of the processes involved. The salt marshes of Chesapeake Bay were delineated to smaller, conceptual marsh units by the 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.
Conceptual marsh units in Chesapeake Bay.
Conceptual marsh units in Chesapeake Bay.

Map

Map Preview

Spatial Services

ArcGIS Mapping Service

WMS Service

WFS Service

Communities

  • USGS Data Release Products

Associated Items

Tags

Provenance

Data source
Input directly

Additional Information

ArcGIS Service Definition Extension

boundingBox
minY36.3743836733624
minX-77.3747069746788
maxY39.5898127009059
maxX-75.5934165817121
enabledServices
WMSServer
WFSServer
filePathUsed__disk__e8/1d/11/e81d1187c790b0cd7c79de40b31e4c994e349614
files
nameCMU_CB.sd
contentTypex-gis/x-arcgis-service-def
pathOnDisk__disk__e8/1d/11/e81d1187c790b0cd7c79de40b31e4c994e349614
size212393864
dateUploadedThu Oct 20 09:40:02 MDT 2022
originalMetadatatrue
checksum
value96386e51c0ad7f6c38a44c0a098dd102
typeMD5
namethumbnail.png
contentTypeimage/png
pathOnDisk__disk__b9/3a/0e/b93a0edd7a010122076b2fded9fe20dac3c2952d
imageWidth200
imageHeight133
size4256
dateUploadedThu Oct 20 09:40:49 MDT 2022
nameCMU_CB.sd
processingStatesuccess
serviceId630f9b40d34e36012efa091d
servicePath630f9b40d34e36012efa091d

Item Actions

View Item as ...

JSON ATOM ISO XML

Save Item as ...

JSON FGDC MODS XML ISO XML

View Item...

Metrics