Historic Shoreline Data

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Descriptions

Database folders are described as follows:

Historic Shoreline Information
Viewing this information is recommended in order to help understand the Historic Shoreline Database.

Historic Shoreline Drawings
Historic Shoreline map images. The drawings are in AutoCad DWG format. The maps range from the mid 1800's to the late 1970's or early 1980's. Copies exist in the State Plane 1983/90 horizontal datum.

Historic Map Source Bibliography
Map bibliography for each county in the Historic Shoreline Database. Bibliography includes the digitized historic source map titles, dates, coordinates and scales.

Mean High Water (MHW) Files
Distances from the Department of Environmental Protection (DEP) monuments to the mean high water, versus time. MHW positions have been and continue to be extracted from DEP beach profile surveys and added to the tables. Earlier copies exist in the State Plane 1983/90 and 1927/79 horizontal datums, and NGVD 1929 and NAVD 1990 vertical datums. New data are being added only in the more recent datums.

Profile Data
Beach profile data from which MHW data have been extracted and added into the MHW tables. Survey data is in standard DEP format, explained in the pformat.txt file. Earlier copies exist in the State Plane 1983/90 and 1927/79 horizontal datums, and NGVD 1929 and NAVD 1990 vertical datums. New data are being added only in the more recent datums. The offshore portions of the profiles from wading depth seaward have generally not been checked specifically by quality control engineers.

Distance Versus Time Plots
Plots by monument range also known as "stack" plots because up to 8 plots are stacked onto one graph page. Pages can be connected end to end to see the pattern of MHW changes over TIME in large regions.

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Reports
Papers concerning many topics are available.

Click on Profiles
Cross section plots of beach profiles over time in click-on viewable and printable PDF format. Available by county, plot combination, range number and page.

Bathymaps
Historic bathymetry images in AutoCad DWG format. An ASCII layer list for the drawing and an ASCII data table is also found in each archived file. Copies in the State Plane 1983/90 horizontal datum are included.