Outer Continental Shelf Lease Blocks - Alaska Region NAD83

Metadata Updated: May 1, 2019

This data set contains Outer Continental Shelf block outlines in ArcGIS shapefile format for the BOEM Alaska Region. OCS blocks are used to define small geographic areas within an Official Protraction Diagram (OPD) for leasing and administrative purposes. These blocks have been clipped along the Submerged Lands Act (SLA) boundary and along the Continental Shelf Boundaries. Additional details are available from: https://www.boem.gov/BOEM-Newsroom/Library/Publications/1999/99-0006-pdf.aspx Because GIS projection and topology functions can change or generalize coordinates, and because shapefiles can not represent true arcs, these GIS files are considered to be approximate and are NOT an OFFICIAL record for the exact block coordinates or areas. The Official Protraction Diagrams (OPDs) and Supplemental Official Block Diagrams (SOBDs) 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.

Downloads & Resources

Dates

Metadata Date September 28, 2018
Metadata Created Date May 1, 2019
Metadata Updated Date May 1, 2019
Reference Date(s) October 24, 2008 (publication)
Frequency Of Update asNeeded

Metadata Source

Harvested from DOI CKAN Harvest Source

Graphic Preview

An image of the BOEM Alaska Region, with unpublished OPDs in blue and published OPDs in black.

Additional Metadata

Resource Type Dataset
Metadata Date September 28, 2018
Metadata Created Date May 1, 2019
Metadata Updated Date May 1, 2019
Reference Date(s) October 24, 2008 (publication)
Responsible Party Bureau of Ocean Energy Management, Mapping and 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 digital data products or services., Access Constraints: None. The BOEM Offshore Cadastral Data is in the public domain.
Bbox East Long 180.000000
Bbox North Lat 74.996354
Bbox South Lat 46.943007
Bbox West Long -180.000000
Coupled Resource
Frequency Of Update asNeeded
Graphic Preview Description An image of the BOEM Alaska Region, with unpublished OPDs in blue and published OPDs in black.
Graphic Preview File https://www.boem.gov/uploadedImages/BOEM/Oil_and_Gas_Energy_Program/Mapping_and_Data/Alaska/AK_BLKCLP_BG.jpg
Graphic Preview Type JPEG
Guid
Harvest Object Id 18594c2f-f109-4be8-bfc7-cd71b1d43690
Harvest Source Id 34ce571b-cb98-4e0b-979f-30f9ecc452c5
Harvest Source Title DOI CKAN Harvest Source
Licence As is. No responsibility is assumed for the correctness of this data.
Metadata Language
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester true
Temporal Extent Begin 1994-01-01
Temporal Extent End 2006-01-01

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