2018 mean high water shoreline of the coast of MA used in shoreline change analysis

Publication Date

2021-08-31

Start Date

2018-05-09

End Date

2018-09-05

Bartlett, M.K., Farris, A.S., Weber, K.M., and Himmelstoss, E.A., 2021, Massachusetts shoreline change project—A GIS compilation of vector shorelines (1844-2014): U.S. Geological Survey data release, https://doi.org/10.5066/P9O8QA8N.

Type: Web Link

Shoreline positions serve as easily understood features that can be used to describe the movement of beaches through time. This shoreline dataset is a mean high water (MHW) datum-based shoreline extracted using both a profile method and a contour method. These data are used in conjunction with other shoreline files to calculate rates of shoreline change. Associated with this dataset is a horizontal uncertainty value for each shoreline included in the attribute table, a proxy-datum bias reference line that corrects for the unidirectional offset between the mean high water (MHW) elevation of this dataset and other historical high water line (HWL) shoreline positions at this location, and an estimate of the uncertainty of this proxy-datum bias. See the first process step for essential information to understand these data and other shoreline change related data.

ScienceBase WMS

ScienceBase WFS

• USGS Data Release Products

Data source

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