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  3. Digital elevations and extents of regional hydrogeologic units in the Northern Atlantic Coastal Plain aquifer system
  4. Digital elevations and extents of regional hydrogeologic units in the Northern Atlantic Coastal Plain aquifer system

Digital elevations and extents of regional hydrogeologic units in the Northern Atlantic Coastal Plain aquifer system

Dates

Publication Date
Time Period
2016

Citation

Pope, J.P., Andreasen, D.C., McFarland, E.R., and Watt, M.K., 2016, Digital elevations and extents of regional hydrogeologic units in the Northern Atlantic Coastal Plain aquifer system from Long Island, New York, to North Carolina (ver. 1.1, January 2021) : U.S. Geological Survey data release, https://doi.org/10.5066/F70V89WN.

Summary

A digital model of the sedimentary Northern Atlantic Coastal Plain aquifer system is composed of 20 rasters and hydrogeologic unit extent polygons. Rasters describe the top elevations of regional aquifers and confining units at a resolution of 2640 feet (1/2 mile). The rasters are clipped to the extent polygons, which represent the spatial extents of the hydrogeologic units onshore and several miles offshore. This three-dimensional hydrogeologic model was constructed as part of a U.S. Geological Survey Groundwater Resources Program study of groundwater availability in the Northern Atlantic Coastal Plain (NACP) aquifer system, including parts of New York, New Jersey, Delaware, Maryland, Virginia, and North Carolina. Digital elevations [...]

Contacts

Point of Contact :
U.S. Geological Survey Water Availability and Use Science Program
Metadata Contact :
U.S. Geological Survey
Publisher :
U.S. Geological Survey
Author :
Jason P Pope, David C. Andreasen, E Randolph McFarland, Martha K Watt
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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nacp_digital_elevations_extents_08312016_ver1_1.xml
“Metadata File”
Original FGDC Metadata
View 		76.07 KB application/fgdc+xml
nacp_datarelease_image.jpg
“NACP Framework Cover Image” 		thumbnail 3.31 MB image/jpeg
nacp_elevation_raster_files.7z
“Unit Elevation Raster Files” 		1.69 MB application/x-7z-compressed
nacp_elevation_ascii_files.7z
“Unit Elevation ASCII Files” 		1.93 MB application/x-7z-compressed
nacp_extent_polygon_files.7z
“Unit Extent Polygon Shapefiles” 		413.06 KB application/x-7z-compressed
nacp_elevations_extents_version_history.txt
“Version History File” 		1.06 KB text/plain
nacp_elevations_extents_revision_details_01-2021.docx
“Version 1.1 Revision Details” 		325.51 KB application/vnd.openxmlformats-officedocument.wordprocessingml.document

Purpose

The hydrogeologic-unit elevations included in this regional compilation incorporate the work of many geologists and hydrologists and span more than a century of investigation. The unit extents and elevations included here were constructed to support regional analysis of the groundwater flow system and are appropriately used only at this scale because of the assumptions, approximations, and generalizations necessary for regional analysis. Individual referenced studies and data should be used for investigations at the local and state levels.
NACP Framework Cover Image
NACP Framework Cover Image

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