Federal Mineral Lease Blocks from MMS source data, Geographic NAD83, LOSCO (2004) [offshore_blocks_MMS_2004]

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Frequently-anticipated questions:


What does this data set describe?

Title:
Federal Mineral Lease Blocks from MMS source data, Geographic NAD83, LOSCO (2004) [offshore_blocks_MMS_2004]
Abstract:
Federal lease blocks for the Gulf of Mexico (GOM) Outer Continental Shelf (OCS) Region
Supplemental_Information:
Supplemental Official OCS Block Diagrams (SOBDs) <http://www.gomr.mms.gov/homepg/lsesale/sorb.html>

Official Protraction Diagram (OPD) Index Map <http://www.gomr.mms.gov/homepg/lsesale/opd2.pdf>

Official Protraction Diagrams (OPD) <http://www.gomr.mms.gov/homepg/lsesale/map_arc.html>

  1. How should this data set be cited?

    Louisiana Oil Spill Coordinator's Office (LOSCO), 2004, Federal Mineral Lease Blocks from MMS source data, Geographic NAD83, LOSCO (2004) [offshore_blocks_MMS_2004]:, Louisiana Oil Spill Coordinator's Office (LOSCO), Baton Rouge, LA.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -97.336145
    East_Bounding_Coordinate: -81.170106
    North_Bounding_Coordinate: 30.289095
    South_Bounding_Coordinate: 23.780774

  3. What does it look like?

    <URL:offshore_blocks_MMS_2004.gif> (GIF)

  4. Does the data set describe conditions during a particular time period?

    Calendar_Date: 10-May-2004
    Currentness_Reference: publication date

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: vector digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • G-polygon (29545)

    2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

  7. How does the data set describe geographic features?

    offshore_blocks_MMS_2004

    AREA_CODE
    Code abreviation for area (Source: MMS)

    ValueDefinition
    ACAlaminos Canyon
    AMAmery Terrace
    APApalachicola
    ATAtwater Valley
    BABrazos
    BMBay Marchand
    BSBreton Sound
    CAChandeleur
    CCCorpus Christi
    CECampeche Escarpment
    CHCharlotte Harbor
    DCDeSoto Canyon
    DDDestin Dome
    DTDry Tortugas
    EBEast Breaks
    ECEast Cameron
    EIEugene Island
    ELThe Elbow
    EWEwing Bank
    FMFlorida Middle Ground
    FPFlorida Plain
    GAGalveston
    GBGarden Banks
    GCGreen Canyon
    GIGrand Isle
    GVGainesville
    HEHenderson
    HHHowell Hook
    HIHigh Island
    KCKeathley Canyon
    KWKey West
    LLLloyd Ridge
    LSLund South
    LULund
    MAMiami
    MCMississippi Canyon
    MIMatagorda Island
    MOMobile
    MPMain Pass
    MUMustang Island
    PBSt. Petersburg
    PEPensacola
    PIPort Isabel
    PLSouth Pelto
    PNNorth Padre Island
    PRPulley Ridge
    PSSouth Padre Island
    RKRankin
    SASabine Pass (LA)
    SESigsbee Escarpment
    SMSouth Marsh Island
    SPSouth Pass
    SSShip Shoal
    STSouth Timbalier
    SXSabine Pass (TX)
    TPTarpon Springs
    TVTortugas Valley
    VKViosca Knoll
    VNVernon Basin
    VRVermilion
    WCWest Cameron
    WDWest Delta
    WRWalker Ridge

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    AREA
    Area of feature (Source: ESRI)

    Area in acres

    MMSBLOCKS_
    (Source: ESRI)

    MMS_REGION
    MMS Region Code (Source: MMS)

    ValueDefinition
    GA unique identifier for the Minerals Management Service (MMS) Outer Continental Shelf

    MMS_PLAN_A
    MMS Plan Area CD (Source: MMS)

    ValueDefinition
    WGMIndicates an Outer Continental Shelf (OCS) group of offshore blocks that are considered as an entity for administrative planning purposes. For example: WGM = Western Gulf of Mexico
    LNDIndicates an Outer Continental Shelf (OCS) group of offshore blocks that are considered as an entity for administrative planning purposes. For example: WGM = Western Gulf of Mexico
    CGMIndicates an Outer Continental Shelf (OCS) group of offshore blocks that are considered as an entity for administrative planning purposes. For example: WGM = Western Gulf of Mexico
    EGMIndicates an Outer Continental Shelf (OCS) group of offshore blocks that are considered as an entity for administrative planning purposes. For example: WGM = Western Gulf of Mexico

    PROT_NUMBE
    Protraction Number. The identifier of an official protraction, which can be one of two types as utilized by the Minerals Management Service (MMS): an Official Protraction Diagram (OPD) or Leasing Map. (Source: MMS)

    ValueDefinition
    LA1West Cameron
    LA10Main Pass
    LA10AMain Pass, South & East Addition
    LA10BBreton Sound
    LA11Chandeleur
    LA11AChandeleur, East Addition
    LA12Sabine Pass (LA)
    LA1AWest Cameron, West Addition
    LA1BWest Cameron, South Addition
    LA2East Cameron
    LA2AEast Cameron, South Addition
    LA3Vermilion
    LA3ASouth Marsh Island
    LA3BVermilion, South Addition
    LA3CSouth Marsh Island, South Addition
    LA3DSouth Marsh Island, North Addition
    LA4Eugene Island
    LA4AEugene Island, South Addition
    LA5Ship Shoal
    LA5AShip Shoal, South Addition
    LA6South Timbalier
    LA6ASouth Timbalier, South Addition
    LA6BSouth Pelto
    LA6CBay Marchand
    LA7Grand Isle
    LA7AGrand Isle, South Addition
    LA8West Delta
    LA8AWest Delta, South Addition
    LA9South Pass
    LA9ASouth Pass, South & East Addition
    NF17-01Tortugas Valley
    NG14-03Corpus Christi
    NG14-06Port Isabel
    NG15-01East Breaks
    NG15-02Garden Banks
    NG15-03Green Canyon
    NG15-04Alaminos Canyon
    NG15-05Keathley Canyon
    NG15-06Walker Ridge
    NG15-08Sigsbee Escarpment
    NG15-09Amery Terrace
    NG16-01Atwater Valley
    NG16-02Lloyd Ridge
    NG16-03The Elbow
    NG16-04Lund
    NG16-05Henderson
    NG16-06Vernon Basin
    NG16-07Lund South
    NG16-08Florida Plain
    NG16-09Howell Hook
    NG16-11Campeche Escarpment
    NG16-12Rankin
    NG17-01St. Petersburg
    NG17-04Charlotte Harbor
    NG17-07Pulley Ridge
    NG17-08Miami
    NG17-10Dry Tortugas
    NG17-11Key West
    NH15-12Ewing Bank
    NH16-04Mobile
    NH16-05Pensacola
    NH16-07Viosca Knoll
    NH16-08Destin Dome
    NH16-09Apalachicola
    NH16-10Mississippi Canyon
    NH16-11DeSoto Canyon
    NH16-12Florida Middle Ground
    NH17-07Gainesville
    NH17-10Tarpon Springs
    TX1South Padre Island
    TX1ASouth Padre Island, East Addition
    TX2North Padre Island
    TX2ANorth Padre Island, East Addition
    TX3Mustang Island
    TX3AMustang Island, East Addition
    TX4Matagorda Island
    TX5Brazos
    TX5BBrazos, South Addition
    TX6Galveston
    TX6AGalveston, South Addition
    TX7High Island
    TX7AHigh Island, East Addition
    TX7BHigh Island, South Addition
    TX7CHigh Island, East Add., Sou. Ext.
    TX8Sabine Pass (TX)

    PROT_APRV_
    The date the Official Protraction Diagram or Leasing Map is signed by the Federal Government and approved for distribution. (Source: MMS)

    Date

    BLOCK_NUMB
    Identifies a subdivision of an Official Protraction Diagram or Leasing Map (Source: MMS)

    Range of values
    Minimum:1
    Maximum:1168

    Range of values
    Minimum:A1
    Maximum:A596

    BLK_FED_AP
    The date that the OCS Block was established (Source: MMS)

    Date

    BLOCK_LAB
    Left justified BLOCK NUMBER. (Source: MMS)

    Range of values
    Minimum:1
    Maximum:1168

    Range of values
    Minimum:1
    Maximum:1168

    Range of values
    Minimum:A1
    Maximum:A596

    Shape_Area
    Area of feature in internal units squared. (Source: ESRI)

    Positive real numbers that are automatically generated.

    AC_LAB
    Left justified Area Code and block number. The area code is a two character code assigned to each protraction. Example of AC_LAB: PE765 is for block 765 in protraction NH16-05. (Source: MMS)

    See code abreviation for area (AREA_CODE) and block number

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape_Leng


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    Louisiana Oil Spill Coordinator's Office (LOSCO)
    c/o David Gisclair
    Technical Assistance Program (TAP) Director
    Louisiana Oil Spill Coordinator's Office
    Baton Rouge, Louisiana 70804
    USA

    (225) 219-5800 (voice)
    (225) 219-5800 (FAX)
    dgisclair@losco.state.la.us


Why was the data set created?

For reference of offshore mineral block leases


How was the data set created?

  1. From what previous works were the data drawn?

    MMS (source 1 of 1)
    US Department of the Interior, Minerals Management Service, Gulf of Mex, 20040510, Mineral Lease Blocks Polygons: US Department of the Interior, Minerals Management Service, Gulf of Mexico Region, New Orleans, LA.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution: Offshore mineral lease blocks

  2. How were the data generated, processed, and modified?

    Date: 2004 (process 1 of 2)
    The digital E00 (ESRI interchange file) was imported and converted into a shapefile then projected from NAD27 to NAD83.

    Person who carried out this activity:

    DeWitt Braud
    Louisiana State University
    Louisiana State University
    Baton Rouge, LA 70803
    USA

    225.578.6177 (voice)
    dbraud1@lsu.edu

    Hours_of_Service: 0800-1630 CST
    Data sources used in this process:
    • MMS

    Date: Apr-2005 (process 2 of 2)
    Area values (in acres) were added for each polygon. Area calculations based on UTM zone 15, NAD 83.

    Person who carried out this activity:

    Louisiana Geographic Information Center (LAGIC)
    c/o Joshua Kent
    Data Manager
    E313 Howe-Russell
    Baton Rouge, Louisiana 70803
    USA

    (225) 578-3476 (voice)
    jkent4@lsu.edu

  3. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

  2. How accurate are the geographic locations?

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

  5. How consistent are the relationships among the observations, including topology?


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints: None
Use_Constraints:
This digital data layer is for reference purposes and is not intended for measurements or block boundary determination.

If these data are altered or incorporated into another dataset, they are not to be redistributed without also: altering the name of the dataset, including a Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998) compliant metadata file that describes the dataset and reflects the alteration steps that makes the new dataset different from this one, and citing this dataset in the metadata as a source for the altered dataset using the source citation specified below.

If these digital data are used in the production of a report or in the compilation of a standalone printed map, then this dataset is to be cited in the report or on the map using the source citation specified below.

The following source citation is to be used when citing this dataset: 'Federal Mineral Lease Blocks from MMS source data, Geographic NAD83, LOSCO (2004) [MMS_OS_blocks_2004]'

  1. Who distributes the data set? (Distributor 1 of 2)

    Louisiana Oil Spill Coordinator's Office
    c/o David Gisclair
    Technical Assistance Program (TAP) Director
    Louisiana Oil Spill Coordinator's Office
    Baton Rouge, Louisiana 70804
    USA

    (225) 219-5800 (voice)
    (225) 219-5802 (FAX)
    dgisclair@losco.state.la.us

  2. What's the catalog number I need to order this data set?

    Federal Mineral Lease Blocks from MMS source data, Geographic NAD83, LOSCO (2004) [offshore_blocks_MMS_2004]

  3. What legal disclaimers am I supposed to read?

    The data herein, including but not limited to geographic data, tabular data, analytical data, electronic data structures or files, are provided "as is" without warranty of any kind, either expressed or implied, or statutory, including, but not limited to, the implied warranties or merchantability and fitness for a particular purpose. The entire risk as to the quality and performance of the data is assumed by the user. No guarantee of accuracy is granted, nor is any responsibility for reliance thereon assumed. In no event shall the Louisiana Oil Spill Coordinator's Office (LOSCO) be liable for direct, indirect, incidental, consequential or special damages of any kind, including, but not limited to, loss of anticipated profits or benefits arising out of use of or reliance on the data. The LOSCO does not accept liability for any damages or misrepresentation caused by inaccuracies in the data or as a result of changes to the data caused by system transfers or other transformations or conversions, nor is there responsibility assumed to maintain the data in any manner or form.

    These data have been developed from the best available sources. Although efforts have been made to ensure that the data are accurate and reliable, errors and variable conditions originating from physical sources used to develop the data may be reflected in the data supplied. Users must be aware of these conditions and bear responsibility for the appropriate use of the information with respect to possible errors, scale, resolution, rectification, positional accuracy, development methodology, time period, environmental and climatic conditions and other circumstances specific to these data. The user is responsible for understanding the accuracy limitations of the data provided herein. The burden for determining fitness for use lies entirely with the user. The user should refer to the accompanying metadata notes for a description of the data and data development procedures.

    Although these data have been processed successfully on computers at the LOSCO, no guarantee, expressed or implied, is made by LOSCO regarding the use of these data on any other system, nor does the act of distribution constitute or imply any such warranty. Distribution of these data is intended for information purposes and should not be considered authoritative for navigational, engineering, legal and other site-specific uses.

  4. How can I download or order the data?


  1. Who distributes the data set? (Distributor 2 of 2)

    US Department of the Interior, Minerals Management Service, Gulf of Mexico Region
    1201 Elmwood Park Boulevard
    New Orleans, LA USA

    800-200-GULF (voice)
    GulfPublicInfo@mms.gov

  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 21-Aug-2007
Metadata author:
Louisiana State University, Center for GeoInformatics
c/o Dina Knight
Geospatial Scientist/Research Associate 4
Louisiana State University
Baton Rouge, LA 70803
USA

dknight@lsu.edu

Hours_of_Service: 0800-1630 CST
Contact_Instructions: Electronic mail preferred
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


This page is <http://lagic.lsu.edu/data/losco/offshore_blocks_mms_2004_faq.html>
LA Geographic Information Center (LAGIC)
Generated by mp version 2.9.2 on Mon Oct 01 15:04:18 2007