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U.S. DEPARTMENT OF THE INTERIOR

BUREAU OF LAND MANAGEMENT

Oregon / Washington

GIS Metadata


Frequently-asked questions:


What does this data set describe?

  1. How should this data set be cited?

  2. What geographic area does the data set cover?

  3. What does it look like?

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

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

  6. How does the data set represent geographic features?

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

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

  7. How does the data set describe geographic features?

    30-Minute Quad Polygons
    Polygons at intervals of 30 Minutes of latitude and longitude (Source: BLM)

    objectid
    Internal feature number. (Source: ESRI)
                      

    Sequential unique whole numbers that are automatically generated.

    q30
    The USGS Ohio code for the 30-minute quad, with the row/column coding listed first. (Source: BLM)
                      

    name_
    A name up to 30 characters long. This will be the most current name given to a 30M quad, as determined by the source of the name. (Source: BLM)
                      

    source
    source of the name for the quad.

    ValueDefinition
    100K
    100k Name used
    15M
    15M Name used
    7.5M
    7.5M Name used
    Null
    No Name used
    Existing
    Existing Name used

    shape
    Feature geometry. (Source: ESRI)
                      

    Coordinates defining the features.

    SHAPE_Length
    Length of feature in internal units. (Source: ESRI)
                      

    Positive real numbers that are automatically generated.

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

    Positive real numbers that are automatically generated.

    Entity and attribute overview:
    The format of the quad code, in attribute q30, is translated from the format typically provided by USGS. Translation is required for use in many database programs (e.g. Informix, Oracle) because often, when dealing with a character field, the database program will not accept a numeral in the first space.
    
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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?

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Why was the data set created?

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How was the data set created?

  1. Where did the data come from?

  2. What changes have been made?

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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?

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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:
None

Distributor 0 of 0

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Who wrote the metadata?

Dates:
Last modified: 20090820

Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata(FGDC-STD-001-1998)

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