Source data from charts published using the North American Datums of 1902, 1927, and 1983. 1902 and 1927 referenced data was converted to 1983 via NOAA, National Geodetic Survey Software NADCON, version 2.1.
National Oceanic and Atmospheri, National Ocean Service (NOS), Office of , 1994, nos80K_NGoM - Medium Resolution Digital Vector U.S. Shoreline shapefile for the Northern Gulf of Mexico, United States: NOAA/NOS/ORCA/SEA, Silver Spring, MD.Online Links:
- <https://pubs.usgs.gov/of/2010/1178/GIS_catalog/Basemaps/nos80k_NGoM.zip>
- <http://coastalgeospatial.noaa.gov/shoreline.html>
- <http://coastalgeospatial.noaa.gov/gis_files/shoreline/shoreline_data_dictionary.html>
- <http://www.ngdc.noaa.gov/mgg/shorelines/noaamrdvs.html>
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 0.000001. Longitudes are given to the nearest 0.000001. 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.
Zeros that are automatically generated.
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)
Steve.Rohmann@noaa.gov
Shoreline spatial data are considered a crucial element in land use planning, determination of boundary extents, performing change analysis for erosion and accretion studies, and other types of decision makingThis product 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), Special Pr, 1994, NOAA's Medium Resolution Digital Vector Shoreline.Online Links:
NOAA's Medium Resolution Digital Vector Shoreline is a high-quality, Geographic Information System-ready, general-use digital vector data set created by the Strategic Environmental Assessments (SEA) Division of NOAA's Office of Ocean Resources Conservation and Assessment. Compiled from hundreds of NOAA coast charts, this product comprises over 75,000 nautical miles of coastline (nearly 2.5 million vertices), representing the entire coterminous 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 previously digitized medium resolution coastlines were combined to create a polygon representation of the 48 contiguous United States.
A complete description of the process steps is available in the Procedures document file (<http://coastalgeospatial.noaa.gov/gis_files/shoreline/data/docs/procs.txt>).
Person who carried out this activity:
(301) 713-3000 x137 (voice)
(301) 713-4384 (FAX)
Steve.Rohmann@noaa.gov
Person who carried out this activity:
(301) 713-3000 x137 (voice)
(301) 713-4384 (FAX)
Steve.Rohmann@noaa.gov
Data sources produced in this process:
Person who carried out this activity:
(508) 548-8700 (voice)
(508) 457-2310 (FAX)
vpaskevich@usgs.gov
Data sources produced in this process:
Person who carried out this activity:
(508)-548-8700 (voice)
(508)-457-2310 (FAX)
According to the National Oceanic and Atmospheric Administration (NOAA), the data supplied here are a compilation of information collected from some 270+ current or pre-release National Ocean Service Navigation (NOS) 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. In doing so, however, we automatically conveyed the character (all aspects, both good and bad) of those data to our digital product. Because this character may or may not be in agreement with the real world,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, which, 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.
This is the complete dataset as provided by NOAA.
The Medium Resolution Shoreline incorporates the entire contiguous United States coastline as four major regions. These include: the Atlantic Coast, ranging from the United States-Canada Border at the St. Croix River to Florida Bay and the Florida Keys; the Gulf of Mexico Region, extending from northwest of the Keys to the United States-Mexico Border at the Rio Grande; the Pacific Coast Region, extending from the United States-Mexico Border at Baja to the United States-Canada Border along the Straits of Juan de Fuca; and the Great Lakes Region, which includes all of the lakes in their entirety, and the St. Lawrence River Seaway to Ogdensburg, NY. Alaska, the Hawaiian Island Archipelago, Puerto Rico, or any other U. S. interests which are not a part of the coterminous United States are not included in the collection.
No additional checks for topological consistency were performed on the data.
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)
Steve.Rohmann@noaa.gov
Downloadable Data: Medium Resolution Digital Vector U.S. Shoreline [OL 72 18.7 -66.5 -168]. This data file contains the individual NOAA-NOS medium resolution polyline files used to create the NOS80k polygon shapefile.
Although this data has been processed successfully on a computer system at National Oceanic and Atmospheric Administration (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.Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data.
| Data format: | Zip archive containing the shapefile, AVL file and HTML formatted documentation. in format SHP (version 3.3) ESRI polyline shapefile Size: 14 |
|---|---|
| Network links: |
<http://coastalgeospatial.noaa.gov/gis_files/shoreline/data/shapefiles/us_medium_shoreline.zip> <http://rimmer.ngdc.noaa.gov/mgg/coast/getcoast.html> |
The NOAA Medium Resolution, 1:70,000, Digital Vector Shoreline encompasses the entire contiguous United States coastline, some 80,000 nautical miles. Coverage is divided into four primary units:1. East Coast -U.S./Canada Border at the St. Croix River to the southern tip of the Florida Peninsula (including the Keys)
2. Gulf of Mexico Coast -Southern tip of the Florida Peninsula (no Keys) to the U.S./Mexico Border at Brownsville, Texas.
3. West Coast -U.S./Mexico Border at Baja to U.S./Canada Border at the Straits of Juan DeFuca.
4. Great Lakes -All five lakes, in their entirety, including the connecting waterways (except the St. Lawrence River/Seaway).
For practical reasons the sections were further divided into three or more components:
Atlantic Coastal Section:
ec80_01 - St. Mary's Inlet Florida to Little River Inlet South Carolina; ec80_02 - Little River Inlet South Carolina to Cape Henry, Virginia; ec80_03 - Chesapeake Bay; ec80_04 - Chincoteague Inlet Virginia to Block Island Sound Rhode Island; ec80_05 - Point Judith to St. Croix River; ec80_06 - St. Mary's River, Florida to Florida Bay (including the Florida Keys.);
Gulf Coastal Section:
gc80_01 - Padre Island TX to Bayou Choupique, LA; gc80_02 - Lake Calcasieu, LA to Atchafalaya Bay, LA; gc80_03 - Point Au Fer, LA to Barataria Pass, LA; gc80_04 - Grand Terre Island, LA to Gulfport, MS, incl. the Chandeleurs Islands; gc80_05 - Biloxi River, MS to Chassahowitza Reefs, FL; gc80_06 - Chassahowitza Reefs, FL to Flamingo, FL;
Pacific Coastal Section:
wc80_01 - Semiahoo Bay, WA to Yaquina Head, OR; wc80_02 - Alsea Bay, OR to Point Sur, CA; wc80_03 - Point Sur, CA to U.S./Mexico Border;
Great Lakes Section:
gl80_01 - Lake Superior; gl80_02 - Lake Michigan incl. Lake Winnebago, WI; gl80_03 - Lake Huron incl. North Channel, and Georgian Bay; gl80_04 - Lake Erie incl. Detroit, St. Clair, and Niagara Rivers, and Lake St. Clair; gl80_05 - Lake Ontario incl. St. Lawrence River to Ogdensburg, NY.
These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com.
(508) 548-8700 x2259 (voice)
(508) 457-2310 (FAX)
ependleton@usgs.gov
Downloadable Data: NOAA-NOS medium resolution polygon shapefile for the Northern Gulf of Mexico, United States.
Although these data have been used by the U.S. Geological Survey (USGS), U.S. Department of the Interior (DOI), no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
| Data format: | Zip file containing the Northern Gulf of Mexico shapefile components and metadata. in format ZIP (version 14.5) Size: 6 Mb |
|---|---|
| Network links: |
<https://pubs.usgs.gov/of/2010/1178/GIS_catalog/Basemaps/NOS80K_NGoMshoreline.zip> |
These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS or ArcView 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of importing data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com.
(508) 548-8700 x2259 (voice)
(508) 457-2310 (FAX)
ependleton@usgs.gov
