Digital Offshore Cadastre

Gulf of Mexico Federal Outer Continental Shelf Administrative Boundaries

Metadata also available as:

Metadata: Identification_Information Data_Quality_Information Spatial_Data_Organization_Information Spatial_Reference_Information Entity_and_Attribute_Information Distribution_Information Metadata_Reference_Information

Identification_Information:

Citation:

 

Citation_Information:

 

Originator: Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping and Boundary Branch

Publication_Date: 20090529

 

Title:

 

Digital Offshore Cadastre (DOC) - Gulf of Mexico Federal Outer Continental Shelf (OCS) Administrative Boundaries (Preliminary)

Geospatial_Data_Presentation_Form: vector digital data

 

Series_Information:

 

Series_Name: Digital Offshore Cadastre

Issue_Identification: current

 

Publication_Information:

 

Publication_Place: Herndon, Virginia

Publisher: Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping and Boundary Branch

 

Online_Linkage: <http://www.boemre.gov/ld/AdminBoundaries.htm>

 

Larger_Work_Citation:

 

Citation_Information:

 

Originator: Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping and Boundary Branch

Publication_Date: Unpublished Material

 

Title:

 

Technical Information Management System (TIMS), Mapping System, Block and Boundary Component

Geospatial_Data_Presentation_Form: map

Publication_Information:

Publication_Place: Herndon, VA

Publisher:

Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping and Boundary Branch

Description:

 

Abstract:

 

This data set contains the Preliminary Federal Outer Continental Shelf (OCS) Administrative Boundaries Extending from the Submerged Lands Act Boundary seaward to the Limit of the United States Outer Continental Shelf (The U.S. 200 nautical mile Limit, or other marine boundary), in ESRI shape file format, for the BOEMRE Gulf of Mexico Region. The precise coordinates in this file are preliminary, pending final review. These shapefiles have been densified to approximately 1 nautical mile, so that when projected to something other than geographic, the lines will retain the proper shape. Because GIS files can be altered slightly by topology building commands, these GIS shape files do not represent the precise legal definition for these boundaries. The official legal definitions for all Block & Boundary cadastral data are represented by the Official Protraction Diagrams(OPDs) and Supplemental Official OCS Block Diagrams (SOBDs).

 

Purpose:

 

These boundaries will provide the basis for more accurate delineation of OCS planning areas; assist in determining affected state status under the Coastal Zone Management Act and OCS Lands Act; and assist in the section 18 comparative analysis to determine an equitable sharing of developmental benefits and environmental risks among regions. For further information please see the Federal Register Notice from January 3, 2006. See <http://edocket.access.gpo.gov/2006/pdf/05-24659.pdf>

 

Supplemental_Information:

 

The BOEMRE is making its existing cadastre data available at <http://www.boemre.gov/ld/Maps.htm>. These data include digital images of BOEMRE diagrams at the regional, planning area, Official Protraction Diagram (OPD), and Supplemental Official OCS Block Diagram (SOBD) levels and digital spatial data in Arc/View shape format at the regional or planning area levels. OPDs & SOBDs for Federal OCS Administrative Boundaries have not yet been created.

 

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20090529

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -93.805756

East_Bounding_Coordinate: -86.536657

North_Bounding_Coordinate: 30.171553

South_Bounding_Coordinate: 25.597543

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: Offshore

Theme_Keyword: Marine Cadastre

Theme_Keyword: Submerged Lands Act Boundary, SLA

Theme_Keyword: Federal OCS Administrative Boundaries

Theme_Keyword: Exclusive Economic Zone (EEZ)

Theme_Keyword: Outer Continental Shelf, OCS

Theme_Keyword: Bureau of Ocean Energy Management, Regulation and Enforcement, BOEMRE

Theme_Keyword: Oil and gas

Theme_Keyword: States

Place:

Place_Keyword_Thesaurus: None

Place_Keyword: USA

Place_Keyword: Gulf of Mexico

Place_Keyword: Exclusive Economic Zone, EEZ

Place_Keyword: Texas, TX

Place_Keyword: Louisiana, LA

Place_Keyword: Mississippi, MS

Place_Keyword: Alabama, AL

Place_Keyword: Florida, FL

Access_Constraints:

None. The Block and Boundary data is in the public domain.

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.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping & Boundary Branch

Contact_Position: Chief, Mapping and Boundary Branch

Contact_Address:

Address_Type: mailing address

Address: 381 Elden Street

Address: Mail Stop 4011

City: Herndon

State_or_Province: Virginia

Postal_Code: 20170-4817

Country: USA

Contact_Voice_Telephone: (703)787-1312

Contact_Facsimile_Telephone: (703)787-1236

Contact_Electronic_Mail_Address: mapping.boundary.branch@boemre.gov

Hours_of_Service: 7:00am-3:30pm EST

Browse_Graphic:

Browse_Graphic_File_Name: gom_admn.gif

Browse_Graphic_File_Description: Administrative Boundaries shown in blue

Browse_Graphic_File_Type: GIF

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.3.1.1850

Cross_Reference:

Citation_Information:

Originator: Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping and Boundary Branch

Publication_Date: Unpublished Material

Title: Supplemental Official OCS Block Diagrams (SOBDs)

Edition: planned version

Geospatial_Data_Presentation_Form: diagram

Publication_Information:

Publication_Place: Herndon, Virginia

Publisher: Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping and Boundary Branch

Other_Citation_Details:

SOBDs contain additional coordinate and area calculations for individual blocks. SOBDs showing the Federal OCS Administrative Boundaries are not yet complete.

Online_Linkage: <http://www.boemre.gov/ld/Maps.htm>

Larger_Work_Citation:

Citation_Information:

Originator: Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping and Boundary Branch

Publication_Date: Unknown

Title:

Technical Information Management System (TIMS), Mapping System, Block and Boundary Component

Data_Quality_Information:

Logical_Consistency_Report:

These are preliminary data and no tests or reviews for logical consistency have been completed.

Completeness_Report:

All Gulf of Mexico Region Federal OCS Administrative Boundaries are included. They have been clipped at the approximate SLA boundary and U.S. 200 NM Limits.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Coordinates for points forming the Federal OCS Administrative Boundaries were calculated in CARIS to 0.001 meter resolution. Note however that these are geodetic lines. They have been densified as geodesics in CARIS to add a vertex every 1 nautical mile, in order to preserve the proper shape between turning points (when/if they are projected to some other projection).

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:

National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Office of Coast Survey (OCS).

Publication_Date: Unpublished Material

Title: National Baseline

Geospatial_Data_Presentation_Form: map

Publication_Information:

Publication_Place: Silver Spring, MD

Publisher: NOAA

Type_of_Source_Media: Digital File

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2005

Source_Currentness_Reference: Calendar date

Source_Citation_Abbreviation: NOAA NB

Source_Contribution:

Baseline points from which the Federal OCS Administrative Boundaries were projected.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping & Boundary Branch

Publication_Date: 2005

Title: Gulf of Mexico Fixed Baseline Points

Publication_Information:

Publication_Place: Herndon VA

Publisher: BOEMRE

Type_of_Source_Media: Digital File

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2005

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: BOEMRE FBL

Source_Contribution:

Baseline points from which the Federal OCS Administrative Boundaries were projected.

Process_Step:

Process_Description:

The National Baseline points for the Gulf Coast of Florida were obtained from NOAA, and input to the BOEMRE Technical Information Management System (TIMS) (an Oracle Database). TIMS only stores coordinates to 8 decimal places for a degree, so this process rounded the National baseline points from 9 to 8 decimal places. The National Baseline points were then processed with the fixed baseline points for Texas, Louisiana, Mississippi and Alabama. (Technically for Texas and Louisiana it is the SLA boundary that is fixed, but fixing the boundary also fixes the baseline by default.) The National Baseline is published on NOAA nautical charts. The maritime boundaries of the U.S. and metadata, which describe NOAA's National Baseline processes, are available from <http://www.nauticalcharts.noaa.gov/csdl/mbound.htm> The combined baseline file was reformatted as required for input into the CARIS Limits and Boundaries Program. Equidistant lines were then projected by CARIS using the EQUIDISTANT LINE tool, and were densified with the LINE TO GEODESIC tool. Coordinates for these lines were export from CARIS to ascii files which were reformatted as needed for input to ArcInfo with the GENERATE command. PROJECTDEFINE was used to define the coordinate system, and BUILD was used to build topology. Finally the ARCSHAPE command was run to convert to a shape file.

Source_Used_Citation_Abbreviation: NOAA NB

Source_Used_Citation_Abbreviation: BOEMRE FBL

Process_Date: 200512

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping and Boundary Branch

Contact_Position: Chief, Mapping and Boundary Branch

Contact_Address:

Address_Type: mailing address

Address: 381 Elden St.

Address: Mail Stop 4011

City: Herndon

State_or_Province: Virginia

Postal_Code: 20170-4817

Country: USA

Contact_Voice_Telephone: 703) 787-1312

Contact_Facsimile_Telephone: (703) 787-1236

Contact_Electronic_Mail_Address: mapping.boundary.branch@boemre.gov

Hours_of_Service: 6:00am-3:30pm EST

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference: U.S. Gulf of Mexico Outer Continental Shelf (OCS)

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: String

Point_and_Vector_Object_Count: 6

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.00000001

Longitude_Resolution: 0.00000001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137 m

Denominator_of_Flattening_Ratio: 298.25722210088

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: gom_admn

Entity_Type_Definition: shapefile attribute table

Entity_Type_Definition_Source: none

Attribute:

Attribute_Label: FID

Attribute_Definition: Internal feature number.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0

Range_Domain_Maximum: 16

Unrepresentable_Domain:

Sequential unique whole numbers that are automatically generated.

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: ID

Attribute_Definition: Id

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 0

Enumerated_Domain_Value_Definition: default

Enumerated_Domain_Value_Definition_Source: BOEMRE

Overview_Description:

Entity_and_Attribute_Overview: Default attributes assigned by ESRI

Entity_and_Attribute_Detail_Citation: Bureau of Ocean Energy Management, Regulation and Enforcement

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping and Boundary Branch

Contact_Position: Chief, Mapping & Boundary Branch

Contact_Address:

Address_Type: mailing address

Address: 381 Elden St

Address: Mail Stop 4011

City: Herndon

State_or_Province: Virginia

Postal_Code: 20170-4817

Country: USA

Contact_Voice_Telephone: (703) 787-1312

Contact_Facsimile_Telephone: (703) 787-1236

Contact_Electronic_Mail_Address: mapping.boundary.branch@boemre.gov

Hours_of_Service: 7:00am-3:30pm EST

Resource_Description: Digital Offshore Cadastre

Distribution_Liability:

As is, preliminary. No responsibility is assumed for the correctness of this data.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ASHP

Format_Version_Number: 9.1

Transfer_Size: 1.6 Mbytes

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://www.boemre.gov/ld/AdminBoundaries.htm>

Access_Instructions:

Download the zip file from the website. The downloaded file will need to be unzipped. The result will be the necessary ArcView shapefiles and .dbf file.

Online_Computer_and_Operating_System: Dell Pentium server running Windows XP

Fees: None

Metadata_Reference_Information:

Metadata_Date: 20090529

Metadata_Review_Date: 20090529

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Bureau of Ocean Energy Management, Regulation and Enforcement, Mapping and Boundary Branch

Contact_Person: REQUIRED: The person responsible for the metadata information.

Contact_Position: Chief, Mapping & Boundary Branch

Contact_Address:

Address_Type: mailing address

Address: 381 Elden St

Address: Mail Stop 4011

City: Herndon

State_or_Province: Virginia

Postal_Code: 20170

Country: USA

Contact_Voice_Telephone: (703) 787-1312

Contact_Facsimile_Telephone: (703) 787-1236

Contact_Electronic_Mail_Address: mapping.boundary.branch@boemre.gov

Hours_of_Service: 7:00am - 3:30pm EST

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile