EarthWorks Geospatial Catalog

2005 Markhurd Digital Orthophotos, Twin Cities Metropolitan Area

This licensed dataset from MARKHURD contains 267 black and white, color, and color near-infrared (CIR) orthophoto quarter-quadrangles (DQQs), 3.75' x 3.75' covering the 7-county Minneapolis - St. Paul Twin Cities Metropolitan Area in Minnesota. A quarter-quadrangle is included if its coverage includes any portion of the Twin Cities 7-county area. The orthophotos are in UTM, Zone 15, NAD83 projection with a resolution of 0.6 meter (2 ft pixel). The DOQs were delivered in TIFF and MrSID formats with associated world files. MrSID files are available to MetroGIS participants, upon completion of a license agreement. All others must contact MARKHURD for copies. MrSID black and white DOQs are 11 MB each for a total of 3 GB on 1-DVD. Color and CIR DOQs are 17 MB each for a total of 4.5 GB on 2-DVDs for each, color and CIR. These orthophotos were produced using the USGS DOQ specifications as a guideline. The original imagery was collected at approximately 20,000 ft. using a Zeiss Digital Mapping Camera (DMC). Samples of the photos can be found at these links: Black and white: Color: CIR:
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