OCSLA 8g Revenue Zone - Gulf of Mexico NAD27

Metadata:

Identification_Information:

Citation:

Citation_Information:

Originator:

Bureau of Ocean Energy Management, Mapping and Boundary Branch

Publication_Date:

2011

Title:

OCSLA 8g Revenue Zone - Gulf of Mexico NAD27

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, Mapping and Boundary Branch

Online_Linkage:

http://www.data.boem.gov/homepg/pubinfo/repcat/arcinfo/zipped/line_8g.zip

Online_Linkage:

http://www.data.boem.gov/homepg/data_center/mapping/geographic_mapping.asp

Description:

Abstract:

This data set contains the Limit of '8(g) Zone' line in ESRI shapefile format for the BOEM gulf of Mexico Region. The '8(g) Zone' lies between the Submerged Lands Act (SLA) boundary line and a line projected 3 nautical miles seaward of the SLA boundary line. Within this zone, revenues are shared with the coastal state(s). 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 Submerged Lands Act Boundary. The Official Protraction Diagrams (OPDs) and Supplemental Official Block Diagrams (SOBDs) serve as the legal definition for offshore boundary coordinates and area descriptions.

Purpose:

The Limit of '8(g) Zone' boundary line 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.

Supplemental_Information:

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.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date:

1978

Ending_Date:

2011

Currentness_Reference:

publication date

Status:

Progress:

Complete

Maintenance_and_Update_Frequency:

As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate:

-97.155212

East_Bounding_Coordinate:

-81.893723

North_Bounding_Coordinate:

30.218050

South_Bounding_Coordinate:

25.773401

Keywords:

Theme:

Theme_Keyword_Thesaurus:

None

Theme_Keyword:

Offshore

Theme_Keyword:

Cadastre

Theme_Keyword:

Submerged Lands Act Boundary, SLA

Theme_Keyword:

Limit of '8(g) Zone'

Theme_Keyword:

State Seaward Boundary, SSB

Theme_Keyword:

Fed State Boundary

Theme_Keyword:

Lease Blocks

Theme_Keyword:

Marine Sanctuaries

Theme_Keyword:

Outer Continental Shelf, OCS

Theme_Keyword:

OCS Blocks

Theme_Keyword:

Supplemental Official OCS Block Diagram, SOBD

Theme_Keyword:

Bureau of Ocean Energy Management BOEM

Theme_Keyword:

Official Protraction Diagram, OPD

Theme_Keyword:

Oil and Gas

Theme_Keyword:

Alternative Energy

Theme_Keyword:

Renewable Energy

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, Mapping & Boundary Branch

Contact_Position:

Branch Chief

Contact_Address:

Address_Type:

Mailing address

Address:

381 Elden Street

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@boem.gov

Hours_of_Service:

9:00am-4:00pm ET

Native_Data_Set_Environment:

Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; ESRI ArcGIS 10.0.3.3600

Cross_Reference:

Citation_Information:

Originator:

Bureau of Ocean Energy Management, Mapping and Boundary Branch

Publication_Date:

2011

Title:

Supplemental Official OCS Block Diagrams (SOBDs)

Edition:

current version

Geospatial_Data_Presentation_Form:

diagram

Publication_Information:

Publication_Place:

Herndon, Virginia

Publisher:

Bureau of Ocean Energy Management, Mapping and Boundary Branch

Other_Citation_Details:

SOBDs contain official coordinate and area descriptions for individual blocks.

Online_Linkage:

http://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Maps-And-Spatial-Data.aspx

Larger_Work_Citation:

Citation_Information:

Originator:

Bureau of Ocean Energy Management, Mapping and Boundary Branch

Publication_Date:

2011

Title:

BOEM Offshore Cadastral Data

Cross_Reference:

Citation_Information:

Originator:

Bureau of Ocean Energy Management, Mapping and Boundary Branch

Publication_Date:

2011

Title:

Official Protraction Diagrams (OPDs)

Publication_Information:

Publication_Place:

Herndon, Virginia

Publisher:

Bureau of Ocean Energy Management, Mapping and Boundary Branch

Larger_Work_Citation:

Citation_Information:

Originator:

Bureau of Ocean Energy Management

Publication_Date:

2011

Title:

BOEM Offshore Cadastral Data

Program_Affiliation:

Program_Name:

National Coastal Data Development Center IMS Services

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Data_Quality_Information:

Logical_Consistency_Report:

The file is believed to be free of topologic errors.

Completeness_Report:

The entire NAD83 Limit of '8(g) Zone' boundary line in the BOEM Atlantic Region is shown.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Coordinates for points forming the Limit of '8(g) Zone' boundary line are calculated to 3 decimal places of a meter in the TIMS database. However, GIS functions which build topology, change projections, etc. may alter coordinate values. Furthermore, most of the Limit of '8(g) Zone' boundary consists of true arcs, but has been approximated by these shapefiles with straight line segments. For these reasons, these shapefiles are considered to be approximate and are NOT an OFFICIAL record.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator:

BOEM

Publication_Date:

Unpublished material

Title:

BOEM Technical Information Management System

Geospatial_Data_Presentation_Form:

database

Publication_Information:

Publication_Place:

Herndon, VA

Publisher:

Bureau of Ocean Energy Management, Mapping and Boundary Branch

Type_of_Source_Media:

digital tape media

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date:

1978

Ending_Date:

2011

Source_Currentness_Reference:

publication date

Source_Citation_Abbreviation:

TIMS

Source_Contribution:

Coordinates and attributes for OPD polygons.

Process_Step:

Process_Description:

In house programs were used to protract offshore blocks OPD by OPD, on a UTM grid for the offshore areas. Additional boundaries, including the Submerged Lands Act boundary, the Continental Shelf boundary, and others were also computed and intersected with the OPD blocks. The resulting points were then stored in the TIMS database. Other in-house programs were used to create an ArcInfo Coverage from the data stored in the TIMS database. That coverage was converted into a shapefile using ArcGIS. Portions of blocks outside federal jurisdiction were removed, and the shapefile was further "dissolved" to yield just the clipped OPD outlines.

Source_Used_Citation_Abbreviation:

TIMS

Process_Date:

2009

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Bureau of Ocean Energy Management, Mapping and Boundary Branch

Contact_Position:

Branch Chief

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@boem.gov

Hours_of_Service:

9:00am-4:00pm ET

Process_Step:

Process_Description:

Dataset copied.

Process_Date:

20100830

Process_Time:

10385600

Process_Step:

Process_Description:

Dataset copied.

Process_Date:

20100830

Process_Time:

10402400

Process_Step:

Process_Description:

Dataset copied.

Process_Date:

20100830

Process_Time:

10550000

Process_Step:

Process_Description:

Dataset moved.

Process_Date:

20100908

Process_Time:

09581200

Process_Step:

Process_Description:

Dataset copied.

Process_Date:

20100929

Process_Time:

14301800

Process_Step:

Process_Description:

Dataset copied.

Process_Date:

20101013

Process_Time:

08232500

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Spatial_Data_Organization_Information:

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:

678

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Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution:

8.9830550972891565e-009

Longitude_Resolution:

8.9830550972891565e-009

Geographic_Coordinate_Units:

Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name:

D North American 1927

Ellipsoid_Name:

Clarke 1866

Semi-major_Axis:

6378206.4

Denominator_of_Flattening_Ratio:

294.9786982

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Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label:

line_8g

Entity_Type_Definition:

Shapefile that shows the information for the Limit of '8(g) Zone' boundary line in the Gulf of Mexico

Entity_Type_Definition_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute:

Attribute_Label:

FID

Attribute_Definition:

Internal feature number.

Attribute_Definition_Source:

ESRI

Attribute_Domain_Values:

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:

LINE_8G_

Attribute_Definition:

Internal ESRI number

Attribute_Definition_Source:

ESRI

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum:

1

Range_Domain_Maximum:

678

Attribute_Measurement_Frequency:

As needed

Attribute:

Attribute_Label:

LINE_8G_ID

Attribute_Definition:

Internal ESRI number

Attribute_Definition_Source:

ESRI

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum:

1

Range_Domain_Maximum:

701

Attribute_Measurement_Frequency:

As needed

Attribute:

Attribute_Label:

MMS_REGION

Attribute_Definition:

A unique identifier for the Bureau of Ocean Energy Management (BOEM) Outer Continental Shelf (G=Gulf)

Attribute_Definition_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name:

MMS Region Code

Codeset_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Measurement_Frequency:

As needed

Attribute:

Attribute_Label:

BDRY_TYPE_

Attribute_Definition:

Identifies the type of offshore boundary line G = Limit of '8(g) Zone'; O = Other ; OG = Other boundary and Limit of '8(g) Zone'; TB = SLAB which is both SLAB and Limit of "8(g) zone"; TG = SLAB which is also Limit of '8(g) Zone'

Attribute_Definition_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name:

BOEM Boundary Type Code

Codeset_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Measurement_Frequency:

As needed

Attribute:

Attribute_Label:

BDRY_PT_PR

Attribute_Definition:

BOEM boundary point OPD number

Attribute_Definition_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name:

BOEM boundary point OPD number

Codeset_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute:

Attribute_Label:

BDRY_APRV_

Attribute_Definition:

BOEM boundary approval date (year-month-day)

Attribute_Definition_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum:

20070228

Range_Domain_Maximum:

20110701

Attribute_Units_of_Measure:

Date

Attribute_Measurement_Frequency:

As needed

Attribute:

Attribute_Label:

BLOCK_NUMB

Attribute_Definition:

BOEM block number the line segment is in

Attribute_Definition_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum:

1

Range_Domain_Maximum:

1166

Attribute_Measurement_Frequency:

As needed

Attribute:

Attribute_Label:

BDRY_NAME_

Attribute_Definition:

BOEM boundary name code

Attribute_Definition_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name:

BOEM boundary name code

Codeset_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute:

Attribute_Label:

BDRY_NAME1

Attribute_Definition:

BOEM boundary name text

Attribute_Definition_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name:

BOEM boundary name text

Codeset_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Measurement_Frequency:

As needed

Attribute:

Attribute_Label:

BDRY_COV_S

Attribute_Definition:

BOEM boundary cover sequence number

Attribute_Definition_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value:

201102

Enumerated_Domain_Value_Definition:

BOEM boundary cover sequence number

Enumerated_Domain_Value_Definition_Source:

Department of the Interior, BOEM Mapping and Boundaries Branch

Attribute_Measurement_Frequency:

As needed

Attribute:

Attribute_Label:

LEN

Attribute_Definition:

Feature geometry

Attribute_Definition_Source:

ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

none

Attribute_Measurement_Frequency:

As needed

Attribute:

Attribute_Label:

SHAPE_LEN

Attribute_Definition:

Feature geometry

Attribute_Definition_Source:

ESRI

Attribute_Domain_Values:

Unrepresentable_Domain:

length of polyline

Attribute_Measurement_Frequency:

As needed

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Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Bureau of Ocean Energy Management, Mapping and Boundary Branch

Contact_Address:

Address_Type:

mailing

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@BOEM.gov

Hours_of_Service:

9:00am-4:00pm ET

Distribution_Liability:

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

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name:

ASHP

Format_Version_Number:

9.2

Transfer_Size:

5.030

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.boem.gov/Oil-and-Gas-Energy-Program/Mapping-and-Data/Maps-And-Spatial-Data.aspx

Access_Instructions:

From the GIS Files section of the webpage, click on the shapefile you wish to download. The downloaded file will need to be unzipped.

Online_Computer_and_Operating_System:

Windows

Fees:

none

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Metadata_Reference_Information:

Metadata_Date:

20130702

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

Bureau of Ocean Energy Management, Mapping and Boundary Branch

Contact_Position:

Branch Chief

Contact_Address:

Address_Type:

mailing

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@BOEM.gov

Hours_of_Service:

9:00am - 4:00pm ET

Metadata_Standard_Name:

FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version:

FGDC-STD-001-1998

Metadata_Time_Convention:

local time

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