PLATFORM_NAD83.SHP - Locations of Oil and Gas Platforms in the Gulf of Mexico

Metadata also available as - [Outline] - [Parseable text]

Frequently-anticipated questions:


What does this data set describe?

Title:
PLATFORM_NAD83.SHP - Locations of Oil and Gas Platforms in the Gulf of Mexico
Abstract:
Since 1982 the, U.S. Geological Survey (USGS) has collected a large amount of surficial and shallow subsurface geologic information in the deep parts of the Gulf of Mexico. These data include digital sidescan sonar imagery, digital seismic-reflection data, and descriptions and analyses of piston and gravity cores. The data were collected during several different projects that addressed surficial and shallow subsurface geologic processes. Some of these data sets have already been published, but the growing interest in the occurrence and distribution of gas hydrates in the Gulf of Mexico warrants integrating these existing data and associated interpretations into a GIS to provide regional background information for ongoing and future gas hydrate research.
Supplemental_Information:
This accessible computer data is from a working database which is derived by entering data from documents submitted to the Federal Government from oil companies, other Government Agencies, and/or the public. Some errors may exist in this data and we are constantly working to find and eliminate them. Copies of the original documents are available for your inspection and copying at the MMS Public Information Office This computer data is not intended as a legal document and should not be constructed as such. This data is not for navigational use. If you discover problems with this data, please advise and MMS will address this in their priority schedule to correct the data. Contact MMS at GulfPublicInfo@smtp.mms.gov to report such discrepancies. Public domain data from the U.S. government are freely redistributable with proper metadata and source attribution. Please recognize the Minerals Management Service (MMS) as the source of this information.
  1. How should this data set be cited?

    Service, Minerals Management , 2005, PLATFORM_NAD83.SHP - Locations of Oil and Gas Platforms in the Gulf of Mexico: Open-File Report 2005-1071, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    D.C., Twichell, V.A., Cross, Paskevich, V.F., Hutchinson, D.R., Winters, W.J., and Hart, P.E., 2005, GIS of selected geophysical and core data in the northern Gulf of Mexico continental slope collected by the U.S. Geological Survey: Open-File Report 2005-1071, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

    Online Links:

    Other_Citation_Details: 1 DVD-ROM

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -97.142657
    East_Bounding_Coordinate: 0.000000
    North_Bounding_Coordinate: 30.188952
    South_Bounding_Coordinate: 0.000000

  3. What does it look like?

    <http://pubs.usgs.gov/of/2005/1071/data/background/mms/platforms.gif> (GIF)
    Image showing the extent and coverage of the data layer.

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

    Calendar_Date: 13-Dec-2005
    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):

      • Entity point (6359)

    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 0.000001. Longitudes are given to the nearest 0.000001. 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?

    platform_nad83
    Shapefile Attribute Table (Source: ESRI)

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    AREA
    This column is an ArcInfo internal control parameter and has no applicable relevance to the use of the data. (Source: ArcInfo)

    PERIMETER
    This column is an ArcInfo internal control parameter and has no applicable relevance to the use of the data. (Source: ArcInfo)

    PLATFORM_
    This column is an ArcInfo internal control parameter and has no applicable relevance to the use of the data. (Source: ArcInfo)

    PLATFORM_I
    This column is an ArcInfo internal control parameter and has no applicable relevance to the use of the data. (Source: ArcInfo)

    COMPLEX_ID
    COMPLEX_ID_NUM - A unique identifier assigned to a single man-made structure or a group of structures connected by a walkway (Source: Defined by MMS)

    Range of values
    Minimum:2
    Maximum:90028
    Units:integer count
    Resolution:1

    STR_NUMBER
    STRUCTURE_NUMBER - A unique number assigned to a specific structure within a complex (Source: Defined by MMS)

    Range of values
    Minimum:1
    Maximum:10
    Units:integer count
    Resolution:1

    STR_NAME
    STRUCTURE_NAME - The name of the structure assigned by the owner (Source: Provided by MMS)

    Character string

    INSTALL_DA
    INSTALL_DATE - The platform installation data stored in the Arc/Info DATE data field (Source: Provided by MMS)

    ValueDefinition
    "blank"date unknown

    Range of values
    Minimum:20000101
    Maximum:20991231
    Units:date (YYYYMMDD)

    REMOVAL_DA
    REMOVAL_DATE - The platform removal data in Arc/Info DATE data field (Source: Provided by MMS)

    ValueDefinition
    "blank"date unknown

    Range of values
    Minimum:20000112
    Maximum:20750101
    Units:date (YYYYMMDD)

    INSTALL
    INSTALL - The platform installation data in Arc/Info character data field (Source: Provided by MMS)

    Character string

    REMOVAL
    REMOVAL - Platform removal date in Arc/Info character data field. (Source: Provided by MMS)

    Character string

    Entity_and_Attribute_Overview:
    Identifies the location of platforms in the Gulf of Mexico. All platforms existing in the database are included.
    Entity_and_Attribute_Detail_Citation:
    Minerals Management Service Gulf of Mexico OCS Region Geographic Mapping Data


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?

    Please credit the Minerals Management Service as the originator of the data source from which the GIS data layer is derived. Public Information (MS 5034) 1201 Elmwood Park Boulevard New Orleans, LA 70123-2394

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

    Minerals Management Service
    Gulf of Mexico OCS Region
    Public Information (MS 5034)
    New Orleans, LA 70123-2394
    USA

    1-800-200-GULF (voice)
    504-736-2620 (FAX)
    GulfPublicInfo@smtp.mms.gov


Why was the data set created?

This GIS shapefile data layer shows the location of offshore oil and gas platforms in the Gulf of Mexico. The platform information was made available by Minerals Management Service, and has been reprojected from the NAD 27 datum to NAD 83 to be consistent with the remainder of the data in this GIS.


How was the data set created?

  1. From what previous works were the data drawn?

    platform.e00 (source 1 of 1)
    Service, Minerals Management , 20041007, 8211 PLATFORMS - Geographic Mapping Data in Digital Format.

    Online Links:

    Type_of_Source_Media: online
    Source_Contribution:
    Identifies the location of platforms in the Gulf of Mexico. All platforms existing in the database are included.

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

    (process 1 of 3)
    The platform.e00 file was converted to a shape file by using the ESRI/ArcView/Import71 option of ArcView (v. 8.3).

    Person who carried out this activity:

    David Twichell
    U.S. Geological Survey
    Oceanographer
    384 Woods Hole Road
    Woods Hole, MA 02543-1598
    USA

    (508) 548-8700 x2266 (voice)
    (508) 457-2310 (FAX)
    dtwichell@usgs.gov

    Data sources used in this process:
    • platform.e00

    Data sources produced in this process:

    • platform.shp

    Date: 13-Dec-2004 (process 2 of 3)
    The shapefile was projected to its original projection: geographic, NAD 27. The projection was defined using the "Define Projection Wizard" of ArcToolbox which is part of the ESRI product, ArcGIS.

    Person who carried out this activity:

    David Twichell
    US Geological Survey
    Oceanographer
    384 Woods Hole Road
    Woods Hole, MA 02543-1598

    (508) 548-8700 x 2266 (voice)
    (508) 457-2310 (FAX)
    dtwichell@usgs.gov

    Data sources used in this process:
    • platform.shp

    Data sources produced in this process:

    • platform.shp

    Date: 13-Dec-2004 (process 3 of 3)
    The shapefile was converted from geographic, NAD27, to geographic, NAD83. The conversion was completed using the "Project Wizard" of ArcToolbox which is part of the ESRI product, ArcGIS.

    Person who carried out this activity:

    David Twichell
    U.S. Geological Survey
    Oceanographer

    (508) 548-8700 x 2266 (voice)
    (508) 457-2310 (FAX)
    dtwichell@usgs.gov

    Data sources used in this process:
    • platform.shp

    Data sources produced in this process:

    • platform_nad83.shp

  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?

    This is the complete file as downloaded from the Minerals Management Gulf of Mexico OCS website.

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

    No additional checks for topological consistency were performed on the data.


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:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the Minerals Management Service and U.S. Geological Survey (USGS) as the source of this information.

This accessible computer data is from a working database which is derived by entering data from documents submitted to the Federal Government from oil companies, other Government Agencies, and/or the public. Some errors may exist in this data and we are constantly working to find and eliminate them. Copies of the original documents are available for your inspection and copying at the MMS Public Information Office This computer data is not intended as a legal document and should not be constructed as such. This data is not for navigational use. If you discover problems with this data, please advise and MMS will address this in their priority schedule to correct the data. Contact MMS at GulfPublicInfo@smtp.mms.gov to report such discrepancies.

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

    Minerals Management Service
    Gulf of Mexico OCS Region
    Public Information (MS 5034) 1201 Elmwood Park Boulevard
    New Orleans, LA 70123-2394

    1-800-200-GULF (voice)
    504-736-2620 (FAX)
    GulfPublicInfo@smtp.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?

    This accessible computer data is from a working database maintained by the Minerals Management Service (MMS) which is derived by entering data from documents submitted to the Federal Government from oil companies, other Government Agencies, and/or the public. Some errors may exist in this data and we are constantly working to find and eliminate them. Copies of the original documents are available for your inspection and copying at the MMS Public Information Office. This computer data is not intended as a legal document and should not be constructed as such. This data is not for navigational use. If you discover problems with this data, please advise MMS and they will address this in their priority schedule to correct the data. GulfPublicInfo@smtp.mms.gov to report such discrepancies. These data were prepared by an agency of the United States Government. Neither the United States government nor any agency thereof, nor any of their employees, make any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof. Any views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof.

    Although all data published in this report have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and related materials and/or the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of this data, software, or related materials.

  4. How can I download or order the data?

  5. What hardware or software do I need in order to use the data set?

    These data are available in Environmental Systems Research Institute (ESRI) '.e00' format. The user must have ArcGIS® or ArcView® 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of the importing data.


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

    U.S. Geological Survey
    384 Woods Hole Road
    Woods Hole, MA 02543-1598
    USA

    (508) 548-8700 (voice)
    (508) 457-2310 (FAX)

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

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials.

    Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

  4. How can I download or order the data?

  5. What hardware or software do I need in order to use the data set?

    These data are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS® or ArcView® 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of the importing data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com.


Who wrote the metadata?

Dates:
Last modified: 20-Jan-2006
Metadata author:
David Twichell
U.S. Geological Survey
Oceanographer
384 Woods Hole Road
Woods Hole, MA 02543-1598

(508) 548-8700 x 2266 (voice)
(508) 457-2310 (FAX)
dtwichell@usgs.gov

Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


Generated by mp version 2.8.6 on Fri Jan 20 11:49:32 2006