Outer Continental Shelf Official Protraction Diagrams - Atlantic Region NAD 83

Metadata Updated: May 1, 2019

This data set contains Official Protraction Diagram (OPD) outlines in ESRI shapefile format. Atlantic Region OPDs are approximately 2 degrees wide by one degree high. OPDs are further subdivided into blocks that are 4800 x 4800 meters on a UTM plane (but this file does not include those blocks - only the OPD outline). Where the OPD hits the UTM zone boundary, that zone boundary will be a geodesic line - which will appear slightly curved on the UTM plane. OPDs are numbered using the United Nations International Map of the World Numbering System, and are generally named for land or hydrographic features contained within the limits of the diagram. These OPD outlines were clipped along the Submerged Lands Act Boundary (3 mile line), Continental Shelf Boundary (international boundaries), and the dividing line between the Gulf and Atlantic Regions. Further information on the historic development of OPD's can be found in OCS Report MMS 99-0006: Boundary Development on the Outer Continental Shelf: https://www.boem.gov/BOEM-Newsroom/Library/Publications/1999/99-0006-pdf.aspx Because GIS projection and topology functions can change or generalize coordinates, these GIS files are considered to be approximate and are NOT an OFFICIAL record for the exact OPD coordinates or areas. The Official Protraction Diagrams (OPDs) and Supplemental Official Block Diagrams (SOBDs), available on the web in pdf format, serve as the legal definition for BOEM offshore boundary coordinates and area descriptions.

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

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Metadata Date May 25, 2017
Metadata Created Date May 1, 2019
Metadata Updated Date May 1, 2019
Reference Date(s) March 11, 2015 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from DOI CKAN Harvest Source

Graphic Preview

An image of the BOEM Atlantic Region, with coastline in gray and OPD outlines in blue

Additional Metadata

Resource Type Dataset
Metadata Date May 25, 2017
Metadata Created Date May 1, 2019
Metadata Updated Date May 1, 2019
Reference Date(s) March 11, 2015 (publication)
Responsible Party Bureau of Ocean Energy Management, Mapping & Boundary Branch (Point of Contact)
Contact Email
Access Constraints Use Constraints: The data was developed within the U.S. Government; no proprietary rights may be attached to them nor may they be sold to the U.S. Government as part of any procurement of ADP products or services., Access Constraints: None. The Block and Boundary data is in the public domain.
Bbox East Long -64.108329
Bbox North Lat 44.769023
Bbox South Lat 23.817923
Bbox West Long -82.999844
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description An image of the BOEM Atlantic Region, with coastline in gray and OPD outlines in blue
Graphic Preview File https://www.boem.gov/assets/0/79/99/203/f835474e-b59f-4edb-a7c5-8bc8184896c4.gif
Graphic Preview Type GIF
Harvest Object Id 13914efb-df5a-49d1-817c-95814e9f0f93
Harvest Source Id 34ce571b-cb98-4e0b-979f-30f9ecc452c5
Harvest Source Title DOI CKAN Harvest Source
Licence Although these data have been processed successfully on a computer system at the Bureau of Ocean Energy Management, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate data set limitations, restrictions or intended use. The Bureau of Ocean Energy Management shall not be held liable for improper or incorrect use of the data described and/or contained herein.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester true
Temporal Extent Begin 1996-01-01
Temporal Extent End 2008-01-01

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