Metadata also available as

Frequently-anticipated questions:

What does this data set describe?

An overall county-extent mosaic image of aerial orthophoto tiffs. The 100-scale and 200-scale tiffs were mosaiced together into a SDE Raster dataset.
Based on aerial orthophotography developed by Surdex Corporation of St. Louis, Missouri, with a flight date of March 2002.
  1. How should this data set be cited?

    Boone County GIS Department, February 2003, ASSESSOR.SDE.ORTHO_2002: Boone County GIS Department, Columbia, Boone County, Missouri.

    Online Links:

    • Server=BCADC2; Service=5151; Database=Assessor; User=sde; Version=sde.DEFAULT

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -92.571395
    East_Bounding_Coordinate: -92.094647
    North_Bounding_Coordinate: 39.254839
    South_Bounding_Coordinate: 38.636349

  3. What does it look like?

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

    Calendar_Date: March 2002
    Currentness_Reference: ground condition

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

    Geospatial_Data_Presentation_Form: SDE raster digital data

  6. How does the data set represent geographic features?

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

      This is a Raster data set. It contains the following raster data types:

      • Dimensions 450000 x 270000 x 1, type Pixel

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

      Grid_Coordinate_System_Name: State Plane Coordinate System 1983
      SPCS_Zone_Identifier: 2402
      Scale_Factor_at_Central_Meridian: 0.999933
      Longitude_of_Central_Meridian: -92.500000
      Latitude_of_Projection_Origin: 35.833333
      False_Easting: 1640416.666667
      False_Northing: 0.000000

      Planar coordinates are encoded using row and column
      Abscissae (x-coordinates) are specified to the nearest 0.500000
      Ordinates (y-coordinates) are specified to the nearest 0.500000
      Planar coordinates are specified in survey feet

      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.

      Altitude_Resolution: 1.000000
      Explicit elevation coordinate included with horizontal coordinates

  7. How does the data set describe geographic features?

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?

    Boone County GIS Department
    c/o Jason Warzinik
    GIS Program Manager
    801 E Walnut
    Columbia, MO 65201

    573-886-4325 (voice)

    Hours_of_Service: 8am-5pm M-F

Why was the data set created?

Two .dbf image catalog files (one for 100-scale images, and one for 200-scale images) were originally created to automatically access the necessary tiffs based on a desired area of interest (geographic extent). This mosaic was created to provide a seamless county-wide orthophoto image, to make it simpler to access (one file instead of two) the necessary aerial photography for a desired geographic extent. This format also draws much faster than accessing the individual tiffs through the .dbf catalog files.

How was the data set created?

  1. From what previous works were the data drawn?

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

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

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

How can someone get a copy of the data set?

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

Must sign license agreement and is subject to fees defined in fee schedule.
License agreement prevents licensee from selling/redistributing the data.

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

    Boone County Assessor's Office
    c/o Jeff Davis
    801 E Walnut
    Columbia, MO 65201

    573-886-4262 (voice)

    Hours_of_Service: 8am-5pm M-F
  2. What's the catalog number I need to order this data set?


  3. What legal disclaimers am I supposed to read?

  4. How can I download or order the data?

Who wrote the metadata?

Last modified: 30-Dec-2004
Metadata author:
Boone County GIS Department
c/o Con_Per<-->
GIS Analyst
801 E Walnut
Columbia, MO 65201

573-886-4303 (voice)
Con_email <-->

Hours_of_Service: 8am-5pm M-F
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:

Generated by mp version 2.8.6 on Thu Dec 30 16:39:11 2004