Conceptual marsh units of Connecticut salt marshes

Dates

Publication Date: 2023-10-23

Citation

Ackerman, K.V., Defne, Z., and Ganju, N.K., 2023, Geospatial characterization of salt marshes in Connecticut (ver. 2.0, April 2024): U.S. Geological Survey data release, https://doi.org/10.5066/P96QND48.

Summary

This data release contains coastal wetland synthesis products for the state of Connecticut. Metrics for resiliency, including the unvegetated to vegetated ratio (UVVR), marsh elevation, tidal range, wave power, and exposure potential to environmental health stressors 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 [...]

Summary

This data release contains coastal wetland synthesis products for the state of Connecticut. Metrics for resiliency, including the unvegetated to vegetated ratio (UVVR), marsh elevation, tidal range, wave power, and exposure potential to environmental health stressors 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 in terms of the ensuing change to their vulnerability and ecosystem services. This project has been funded in part by the United States Environmental Protection Agency under assistance agreement DW-014-92531201-1 to N. Ganju.

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 :: U.S. Geological Survey, Coastal and Marine Hazards and Resources Program
Publisher :: U.S. Geological Survey
SDC Data Owner :: Woods Hole Coastal and Marine Science Center
USGS Mission Area :: Natural Hazards
Distributor :: U.S. Geological Survey - ScienceBase

Attached Files

sorting

Metadata First

Recent First

Alphabetical

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

CMU_CT_Browse.png “Conceptual marsh units of salt marshes in Connecticut.”		1.06 MB	image/png

Shapefile: CMU_CT.zip
CMU_CT.xml Original FGDC Metadata	View	39.57 KB
CMU_CT.cpg		5 Bytes
CMU_CT.dbf		1.5 MB
CMU_CT.lyrx		41.89 KB
CMU_CT.prj		425 Bytes
CMU_CT.sbn		47.37 KB
CMU_CT.sbx		1.27 KB
CMU_CT.shp		92.56 MB
CMU_CT.shx		38.21 KB
CMU_CT.sld		9.15 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 Connecticut 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 of Connecticut salt marshes

Dates

Citation

Summary

Summary

Contacts

Attached Files

sorting

Metadata First

Recent First

Alphabetical

Purpose

Preview Image

Map

Spatial Services

Communities

Associated Items

Tags

Provenance

Additional Information

Shapefile Extension

Item Actions

Use Item

View Item as ...

Save Item as ...

View Item...

Dates

Citation

Summary

Summary

Contacts

Attached Files sorting Metadata First Recent First Alphabetical

Purpose

Preview Image

Map

Spatial Services

Communities

Associated Items

Tags

Provenance

Additional Information

Shapefile Extension

Item Actions

Use Item

View Item as ...

Save Item as ...

View Item...

Attached Files

sorting

Metadata First

Recent First

Alphabetical