Metadata for Quarter-Quadrangle Boundaries

- Identification Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Full FGDC Metadata in XML Format

Identification Information:

Citation:
  Originator: Montana State Library
  Publication date: 2004
  Title: Quarter-Quadrangle Boundaries
  Online linkage:http://nris.mt.gov/nsdi/nris/shape/qquad24.zip
  Online linkage:http://nris.mt.gov/gis/bundler
Abstract:
  Index of 3.75-minute quadrangle boundaries for Montana, Idaho, and Wyoming, with status of NRIS Digital Orthophto holdings and USGS quadrangle names. These boundaries show the NAD83 location of the graticule lines, rather than the NAD27 lines that form USGS quadrangle boundaries.
Purpose:
  Location and status tracking of products based on US Geological Survey quadrangles.
Time period of content:
  Calendar date: 2004
  Currentness reference: publication date
Status:
  Progress: Complete
  Maintenance and update frequency: As needed
Point of contact:
  Montana State Library
  PO Box 201800
  Helena, MT 59620-1800
  Telephone: 406-444-5355
  Fax: 406-444-0581
  E-Mail: nris@mt.gov

Back to Top

Spatial Data Organization Information:

Point and vector object information:
  ESRI feature type: Polygon
    ESRI feature count: 25244

Back to Top

Spatial Reference Information:

Horizontal coordinate system definition:
  Projected coordinate system name: NAD_1983_StatePlane_Montana_FIPS_2500
  Grid coordinate system name: State Plane Coordinate System
  SPCS zone identifier: 2500
  Lambert conformal conic:
  Standard parallel: 45.000000
  Standard parallel: 49.000000
  Longitude of central meridian: -109.500000
  Latitude of projection origin: 44.250000
  False easting: 600000.000000
  False northing: 0.000000
  Planar distance units: meters
  Geodetic model:
    Horizontal datum name: North American Datum of 1983
    Ellipsoid name: Geodetic Reference System 80
    Semi-major axis: 6378137.000000
    Denominator of flattening ratio: 298.257222
Altitude system definition:
  Altitude resolution: 1.000000
  Altitude encoding method:
    Explicit elevation coordinate included with horizontal coordinates

Back to Top

Entity and Attribute Information:

Entity type label: SDE.SDE.QQUAD24
Entity count: 25244
  Attribute label: SDE.SDE.QQUAD24.AREA
    Attribute definition: Area of quarter-quadrangle in square meters
  Attribute label: PERIMETER
    Attribute definition: Perimeter of quarter-quadrangle in meters
  Attribute label: DOQIDX_
    Attribute definition: Software-generated ID number
  Attribute label: NAME
    Attribute definition: Name of the USGS 7.5 minute quadrangle
  Attribute label: CODE
    Attribute definition: Numeric 7.5-minute quadrangle code
    Attribute domain:
      The first two digits are the latitude, and the next three digits are the longitude of the nearest whole degree to the south and west of the quadrangle. The sixth and seventh digits are the row and column number (1-8) of the 7.5-minute quadrangle within the 1x1 degree latitude/longitude block.
  Attribute label: QUARTER
    Attribute definition:
      Quarter-quadrangle (3.75-minute) identifier -- NE, NW, SE, or SW
  Attribute label: DATE
    Attribute definition:
      Date of the 1st-generation Digital orthophoto quarter-quadrangle held at the State Library
  Attribute label: DOQQSTATUS
    Attribute definition: Status of the State Library quarter-quadrangle orthophoto.

    Attribute Value | Definition of Attribute Value
    -1 | The quadrangle is outside of Montana and the availability is not known
    0 | The digital orthophoto quarter-quadrangle is not available
    3 | The digital orthophoto quarter-quadrangle is available at the State Library
    4 | The digital orthophoto quarter-quadrangle is available at the State Library
    5 | The digital orthophoto quarter-quadrangle is available from the US Geological Survey, but not at the State Library

  Attribute label: STATE
    Attribute definition: Single-character State code
    Attribute domain:
      Any quarter-quadrangle that touches Montana has a code of M. Other quadrangles are coded I, U, or W depending on whether they are primarily in Idaho, Utah, or Wyoming. Codes for these other states are un-reliable -- check the STATECODE field
  Attribute label: STATECODE
    Attribute definition:
      List of two-letter state abbreviations for all states touched by the 7.5-minute quadrangle
    Attribute domain:
      I believe these codes are derived from the states touched by the ENTIRE quadrangle that each quarter-quad is part of. The states are listed in order of how much area they cover in the quadrangle
  Attribute label: DARKIMAGE
    Attribute definition: DARKIMAGE

    Attribute Value | Definition of Attribute Value
    -9999 | No digital orthophoto quarter-quadrangle is available
    0 | The digital orthophoto quarter-quadrangle image has no black pixels, or the image is not available
    1 | The number of black pixels in the digital orthophoto quarter-quadrangle image is not known
    Numbers greater than 1 | Number of black pixels

  Attribute label: SPC_SID
    Attribute definition: State-Plane Coordinate MrSID image status

    Attribute Value | Definition of Attribute Value
    0 | The State Library does not have a MrSID version of this image in State Plane Coordinates
    1 | The State Library has a MrSID version of this image in State Plane Coordinates
    2 | This quarter-quadrangle is entirely covered by a lake and is not available

  Attribute label: SPC_TIFF
    Attribute definition: State-Plane Coordinate TIFF image status

    Attribute Value | Definition of Attribute Value
    -1 | The State Library does not have this image and it is outside of Montana
    0 | The State Library does not have this image and it is inside or close to Montana
    1 or 2 | This image is available at the State Library. There are two possible values because the images were formerly stored on two different disk systems.

  Attribute label: UTM_SID
    Attribute definition: UTM Coordinate MrSID image status

    Attribute Value | Definition of Attribute Value
    0 | The State Libary has not made a UTM MrSID image of this quadrangle
    1 | A UTM-Coordinate MrSID image of this quadrangle is available at the State Library
    2 | This quarter-quadrangle is entirely covered by a lake and is not available

  Attribute label: UTM_BSQVOLNUM
    Attribute definition:
      Tape volume number of the DLT tape the State Library received this image from the US Geological Survey on. If the number is zero, the State Library received this image on CD or does not have it.
  Attribute label: TAPECODE
    Attribute definition:
      This is the code the US Geological Survey used to identify the quadrangle on DLT tape.
    Attribute domain:
      This is similar to the CODE value, except that the last two digits are a sequence number (01-64), counted left to right, top to bottom, in the 1x1 degree latitude/longitude block.
  Attribute label: DOQQYEAR
    Attribute definition:
      This is the year of the digital orthophoto quarter quadrangle photograph
  Attribute label: SDE_LOCATION
    Attribute definition: Unknown
  Attribute label: shape
    Attribute definition: Feature geometry.
  Attribute label: shape.area
    Attribute definition: Area of quadrangle in square meters
  Attribute label: shape.len
    Attribute definition: Perimeter of quadrangle in meters
  Attribute label: SHAPE.fid
    Attribute definition: Internal feature number.

Back to Top

Distribution Information:

Distributor:
  Montana State Library
  Telephone: 406-444-5358
  E-Mail: nris@mt.gov
Resource description: Downloadable Data
Standard order process:
  Digital form:
    Format name: ESRI Shapefile
    Online option:
    http://nris.mt.gov/gis/bundler
  Online option:http://nris.mt.gov/nsdi/nris/shape/qquad24.zip

Back to Top

Metadata Reference Information:

Metadata date: 12/21/2005
Metadata contact:
  Gerry Daumiller
  Montana State Library
  PO Box 1800
  Helena, MT 59620-1800
  Telephone: 406-444-5358
  E-Mail: gdaumiller@mt.gov

Back to Top