Mean tidal range of marsh units in Eastern Shore of Virginia salt marshes

Publication Date

2023-03-28

Ackerman, K.V., Defne, Z., and Ganju, N.K., 2023, Geospatial characterization of salt marshes on the Eastern Shore of Virginia: U.S. Geological Survey data release, https://doi.org/10.5066/P9E6V0QK.

The purpose of this shapefile is to calculate mean tidal range in each marsh unit. Analysis of mean tidal range is part of a comprehensive assessment to identify the factors and their weights in determining the vulnerability and resiliency of salt marshes. Biomass production is positively correlated with mean tidal range in salt marshes along the Atlantic coast of the United States. Recent studies support the idea that enhanced stability of the marshes can be attributed to increased vegetative growth due to increased tidal range. This dataset displays the spatial variation of mean tidal range (i.e., mean range of tides, MN) of marsh units in Eastern Shore of Virginia salt marsh complexes. Mean tidal range, MN, was based on the calculated difference in height between mean high water (MHW) and mean low water (MLW) using the VDatum (v.4.5.1) database (http://vdatum.noaa.gov/).

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ScienceBase WFS

• USGS Data Release Products

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