The shoreline was created from data captured (digitized from scanned images of the master separates of the NOS Charts) from over 270 National Ocean Service Navigation Charts and spans some 80,000 nautical miles at an average map scale of 1:70,000.
This product, created by the Strategic Environmental Assessments (SEA) Division of NOAA's Office of Ocean Resources Conservation and Assessment, comprises over 75,000 nautical miles of coastline (nearly 2.5 million vertices), representing the entire conterminous United States of America. Alaska, the Hawaiian Islands, Puerto Rico, and all other interests and territories of the United States are not included in the collection.
The data set is designed for a broad target audience ranging from governmental agencies, universities and other research institutions, to the private sector, and students, as well as any other concern requiring a general purpose digital shoreline layer for GIS and cartographic projects.
National Oceanic and Atmospheri, National Ocean Service (NOS), Office of , 1994, NOS80K: National Ocean Service Coastline of the Northeastern United States: NOAA/NOS/ORCA/SEA, Silver Spring, MD.This is part of the following larger work.Online Links:
- <https://pubs.usgs.gov/of/2008/1196/data/basemap/nos80k/nos80k.zip>
- <http://coastalgeospatial.noaa.gov/shoreline.html>
- <http://coastalmap.marine.usgs.gov/GISdata/basemaps/coastlines/nos80k/allus80k.zip>
Poppe, L.J., McMullen, K.Y., Williams, S.J., Ackerman, S.D., Glomb, K.A., and Forfinski, N.A., 2008, Enhanced Sidescan-Sonar Imagery Offshore of Southeastern Massachusetts: Open-File Report 2008-1196, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.Online Links:
This is a Vector data set. It contains the following vector data types (SDTS terminology):
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.
The horizontal datum used is North American Datum of 1983.
The ellipsoid used is Geodetic Reference System 80.
The semi-major axis of the ellipsoid used is 6378137.000000.
The flattening of the ellipsoid used is 1/298.257222.
Sequential unique whole numbers that are automatically generated.
Coordinates defining the features.
Please credit National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey, and the Strategic Environmental Assessments (SEA) Division of the Office of Ocean Resources Conservation and Assessment (ORCA) as the originator of the dataset.
(301) 713-3000 x137 (voice)
(301) 713-4384 (FAX)
srohmann@seamail.nos.noaa.gov
Because the ALLUS80K provides a higher detail of coastal inlets and waterways, this data layer was added to the GIS as a basemap for overlaying the surficial sediment data archived in this report. This data layer is a subset of the complete ALLUS80k coastline and shapefile and has been clipped to a portion of the east coast.
Person who carried out this activity:
(508) 548-8700 x2281 (voice)
(508) 457-2310 (FAX)
vpaskevich@usgs.gov
Data sources produced in this process:
Poppe, L.J., Paskevich, V.F., Williams, S.J., Hastings, M.E., Kelley, J.T., Belknap, D.F., Ward, L.G., FitzGerald, D.M., and Larsen, P.F., 2003, Surficial Sediment Data from the Gulf of Maine, Georges Bank, and Vicinity: a GIS Compilation: Open-File Report 03-001, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.Online Links:
According to NOAA, the data supplied here are a compilation of information collected from some 270+ current or pre-release National Ocean Service Navigation Charts. In compiling this product we made no attempt to ascertain the congruency between the charted data, and the real world. Our objective was to simply capture the representative coastline as provided to us via the NOS Chart. Every effort was made to capture the shoreline on these charts as faithfully as our skills and technology allowed, and there is every indication that we were successful to this end. However, in doing so, we automatically conveyed the character (all aspects, both good and bad) of those data to our digital product. A character which may or may not be in agreement with the real world. Because of this, the user is advised to exercise caution in making any assumptions about the fallibility, or infallibility, of the spatial information supplied here; especially when circumstances warrant a high degree of absolute positional accuracy.
Spatial data were derived directly from National Ocean Service Navigation Charts. The NOS Chart Products meet or exceed National Map Accuracy standards (hard copy); the digital data supplied in this compilation should, when plotted at scale, meet or exceed these same cartographic standards.
Are there legal restrictions on access or use of the data?
- Access_Constraints: None
- Use_Constraints:
- These data are not to be used for navigation purposes. Mariners should refer to the appropriate nautical chart.
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution.
(301) 713-3000 x137 (voice)
(301) 713-4384 (FAX)
rohmann@seamail.nos.noaa.gov
Downloadable Data: Medium Resolution Digital Vector U.S. Shoreline [OL 72 18.7 -66.5 -168]
Although this data has been processed successfully on a computer system at NOAA, no warranty, expressed or implied, is made by NOAA regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. NOAA warrants the delivery of this product in computer-readable format, and will offer a replacement copy of the product when the product is determined unreadable by computer input peripherals, or when the physical medium is delivered in damaged condition. This dataset is also released on condition that neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights.
| Data format: | The three files (nos80k.dbf, nos80k.shp, nos80k.shx) that comprise the ESRI shapefile, 'prj' and 'avl' files, browse graphic and four versions of the metadata. in format ESRI Shapefile (version ArcView 3.2) ESRI polygon shapefile Size: 38.544 |
|---|---|
| Network links: |
<https://pubs.usgs.gov/of/2008/1196/data/basemap/nos80k/nos80k.zip> <https://pubs.usgs.gov/of/2008/1196/html/catalog.html> |
| Media you can order: | CD-ROM (Density 640 Mbyte) (format ISO9660) |
The data is available in ArcView shapefile format. The user must have ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView, the user may utilize another GIS application package capable of importing data.
(508) 548-8700 x2314 (voice)
(508) 457-2310 (FAX)
lpoppe@usgs.gov
