This data set contains BOEM Planning Area outlines in ESRI shapefile format for the BOEM Alaska Region. The Submerged Lands Act (SLA) boundary, along with the Continental Shelf Boundary (CSB), the Limit of Protraction were used to complete the polygons for the Planning Areas. 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 OCS Block Diagrams (SOBDs) serve as the legal definition for BOEM offshore boundary coordinates and area descriptions. If any discrepancies are found between these shapefiles and the OPDs and SOBDs, it is the OPD and SOBD diagrams which take precidence. Also note that the BOEM cadastre is developed on a UTM projection, and most Planning Areas span multiple UTM zones. This means that area values computed from these shapefiles will not match the official BOEM areas.
These Planning Area polygons and other cadastre information the BOEM produces are generated in accordance with 30 Code of Federal Regulations (CFR) 256.8 to support Federal land ownership and mineral resource management.
The BOEM is making its existing cadastre data available at http://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Index.aspx. These data include Official Protraction Diagrams (OPDs), and Supplemental Official OCS Block Diagrams (SOBDs) in pdf format, and digital spatial data in ArcGIS shapefile format.
2012-2017 Five Year Plan
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.
381 Elden Street
Mail Stop HM 3120
The file is believed to be free of topologic errors.
All 15 Alaska Planning Areas are included.
Coordinates values have been computed to .00000001 of a degree, but this shapefile is considered to be approximate. Where differences occur between the shapefile and the OPD and SOBD diagrams, the diagrams take precedence.
Coordinates and attributes for planning area polygons.
The planning areas were manually coded in the database for individual blocks, In-house programs were then used to create a block-polys ArcInfo coverage, ArcGIS was then used to convert to a shapefile and that shapefile was "dissolved" to leave just the Planning Area polygons.
381 Elden St.
Mail Stop HM3120
Dataset copied.
The name assigned to the BOEM Outer Continental Shelf planning area.
Bureau of Ocean Energy Managemen
Internal feature number.
ESRI
Feature geometry.
ESRI
The code used to designate an OCS planning area.
Bureau of Ocean Energy Management
Perimeter is computed by ESRI in coverage units (degrees) - NOT the official BOEM TIMS measurement.
ESRI
Internal feature number.
ESRI
Area is computed by ESRI in coverage units (square degrees) - NOT the official BOEM TIMS acreage.
ESRI
Atttributes to describe the Planning Areas.
Bureau of Ocean Energy Management
381 Elden St.
Mail Stop HM3120
As is. No responsibility is assumed for the correctness of this data.
381 Elden St
Mail Stop HM3120