Coverages were created in Arc/Info version 7.0.4 on a Sun Sparc Station 10 running Solaris 2.5.1
This data set contains Continental Shelf Boundaries (CSB) lines in ESRI shapefile format for the BOEM Alaska Region. The CSB defines the seaward limit of federally managed OCS lands. This CSB file only includes the lateral boundaries between the United States and Canada or Russia. That portion of the CSB defined by the 200 nautical mile line has not yet been calculated. Because GIS projection and topology functions can change or generalize coordinates, these GIS files are NOT an OFFICIAL record for the exact CSB.
The CSB line and other cadastre information the BOEM produces are generated in accordance with 30 Code of Federal Regulations (CFR) Part 556.8 Subpart A, (formerly Part 256.8 Subpart A (2010)) to support Federal land ownership and mineral resource management.
The BOEM is making its existing cadastre data available at https://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. In order to deal smoothly with the international dateline, positive longitudes like +175 degrees were converted into negative longitudes like –185 degrees.
Bureau of Ocean Energy Management, Geospatial Services Division
20020725
Continental Shelf Boundary - Alaska NAD83
map
Digital Offshore Cadastre
current
Sterling, Virginia
Bureau of Ocean Energy Management, Geospatial Services Division
Bureau of Ocean Energy Management, Geospatial Services Division
2002
Technical Information Management System (TIMS), Mapping System, Block and Boundary Component
map
Sterling, Virginia
Bureau of Ocean Energy Management, Geospatial Services Division
https://www.boem.gov/AK-csb.zip
https://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Alaska.aspx
Publication date
2002
As needed
+177.00
-137.51
74.99
62.96
None
Offshore
Cadastre
Maritime Boundaries
Continental Shelf Boundaries, CSB
U.S.-Russia Provisional Maritime Boundary
Outer Continental Shelf, OCS
Bureau of Ocean Energy Management, BOEM
Oil and Gas
None
USA
Exclusive Economic Zone, EEZ
Alaska, AK
None. The BOEM data is in the public domain.
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.
https://www.boem.gov/assets/0/79/99/203/969/539d9280-9c36-48c4-a64f-efdb94eac580.jpg
An image of the BOEM Alaska Region Continental Shelf Boundaries GIS data file.
GIF
Bureau of Ocean Energy Management, Geospatial Services Division
1994-2008
Supplemental Official OCS Block Diagrams (SOBDs)
diagram
Sterling, Virginia
Bureau of Ocean Energy Management, Geospatial Services Division
Current
SOBDs contain additional coordinate and area calculations for individual blocks.
https://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Alaska.aspx
Bureau of Ocean Energy Management, Geospatial Services Division
2002
Technical Information Management System (TIMS), Mapping System, Block and Boundary Component
Bureau of Ocean Energy Management, Alaska Region, Leasing Activities Section
Leases
Anchorage, Alaska
Bureau of Ocean Energy Management, Alaska Region, Leasing Activities Section
Bureau of Ocean Energy Management
2002
Technical Information Management System (TIMS), Lease Administration Component
Bureau of Ocean Energy Management, Geospatial Services Division
Branch Chief
mailing and physical address
45600 Woodland Road
Mail Stop HM3120
Sterling
Virginia
20166
(703) 787-1312
(703) 787-1165
boemosr-gsd@boem.gov
Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2.6.1500
CSB
-193
-130.628608
74.987415
50.9775
1
FGDC Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time
20210201
Bureau of Ocean Energy Management, Geospatial Services Division
Branch Chief
mailing and physical address
45600 Woodland Road
Mail Stop HM3120
Sterling
Virginia
20166
(703) 787-1312
(703) 787-1165
boemosr-gsd@boem.gov
ISO 19115 Geographic Information - Metadata
DIS_ESRI1.0
dataset
Digital Offshore Cadastre
0.102
SHP
7.0.4
https://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Alaska.aspx
From the GIS Files section of the webpage, click on the shapefile you wish to download. The downloaded file will need to be unzipped.
Dell Pentium server running Windows NT 4.0
As is. No responsibility is assumed for the correctness of this data
Bureau of Ocean Energy Management, Geospatial Services Division
Branch Chief
mailing and physical address
45600 Woodland Road
Mail Stop HM3120
Sterling
Virginia
20166
(703) 787-1312
(703) 787-1165
boemosr-gsd@boem.gov
0.102
Shapefile
Vector
U.S. Alaska Outer Continental Shelf (OCS)
String
1184
1184
CSB
FID
Internal feature number.
ESRI
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
ESRI
Coordinates defining the features.
FNODE_
TNODE_
LPOLY_
RPOLY_
LENGTH
CSB_
CSB_ID
MMS_REGION
BDRY_TYPE_
BDRY_PT_PR
BDRY_APRV_
BLOCK_NUMB
BDRY_NM_CD
BDRY_NM_TX
BDRY_COV_S
Bureau of Ocean Energy Management
20130624
The CSB line coverage was built using Arc/Info double precision.
The CSB file only includes the lateral boundaries between Canada and the U.S.-Russia Provisional Maritime boundary line.
Coordinates for points forming CSB lines are used as published and stored to 3 decimal places of a meter in the TIMS database. However, GIS functions which build topology, change projection, etc. may degrade coordinate values. For that reason, these GIS files are NOT an OFFICIAL record.
20031103
The source data for CSB lines are data provided by the U.S. Department of State, the Federal Register, or international treaty/agreements. The location coordinates for the points forming these boundaries are used as published. These published coordinates may be transformed to the required horizontal datum utilizing NADCON software.
Bureau of Ocean Energy Management, Geospatial Services Division
Branch Chief
mailing and physical address
45600 Woodland Road
Mail Stop HM3120
Sterling
Virginia
20170
(703) 787-1312
(703) 787-1165
boemosr-gsd@boem.gov
computer program
TIMS
Coordinates for points forming CBS lines were taken from State Department, Federal Register, or International treaty sources.
publication date
2002
Bureau of Ocean Energy Management, Geospatial Services Division
2002
TIMS, Mapping System, Block and Boundary Component
map
Sterling, Virginia
Bureau of Ocean Energy Management, Geospatial Services Division
0.0000001
0.0000001
Decimal degrees
North American Datum 1983
Geodetic Reference System 1980
6378137.0
298.257222101