Digital Orthophotography (DOQ), 40 Minnesota Counties, MDA, 2006

This page last updated: 05/26/2009
Metadata created using Minnesota Geographic Metadata Guidelines


Metadata Summary

Originator MDA Geospatial Services, Inc.
Abstract Natural-color one-meter resolution digital orthophotography was acquired over 40 Minnesota counties in Summer and Fall 2006. Some areas are leaf-on; other areas are leaf-off.

The U.S. Geological Survey procured the imagery from the vendor in order to make it publicly available. The imagery is currently accessible via a WMS service from the Minnesota Land Management Information Center (LMIC).

LMIC created this metadata record based on information provided by MDA.
Browse Graphic none available
Time Period of Content Date 2006
Currentness Reference The photography was flown between August and November 2006.
Access Constraints None
Use Constraints Redistribution Conditions: In obtaining these data from LMIC, it is understood that you and/or your organization have the right to use them for any internal purpose. If you modify them, you should document those changes in a metadata record that should accompany all redistributed data. If you transmit or provide these data in any form to another user, the data MUST be accompanied by a copy of this disclaimer and all documentation provided with the original data set including the full metadata record.
Distributor Organization Land Management Information Center
Ordering Instructions WMS service: Clicking on the link below will direct you to a webpage explaining how to access the imagery and view it directly in your GIS software.

If other delivery options become available, information will be added to this documentation.
Online Linkage Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" in Section 6 of this metadata.

Full Metadata

Digital Orthophotography (DOQ), 40 Minnesota Counties, MDA, 2006

Go to Section:
1. Identification Information
2. Data Quality Information
3. Spatial Data Organization Information
4. Spatial Reference Information
5. Entity and Attribute Information
6. Distribution Information
7. Metadata Reference Information

 
Section 1 Identification Information   Top of page
Originator MDA Geospatial Services, Inc.
Title Digital Orthophotography (DOQ), 40 Minnesota Counties, MDA, 2006
Abstract Natural-color one-meter resolution digital orthophotography was acquired over 40 Minnesota counties in Summer and Fall 2006. Some areas are leaf-on; other areas are leaf-off.

The U.S. Geological Survey procured the imagery from the vendor in order to make it publicly available. The imagery is currently accessible via a WMS service from the Minnesota Land Management Information Center (LMIC).

LMIC created this metadata record based on information provided by MDA.
Purpose To validate or collect road centerline data in support of the U.S. Census Bureau MAF/TIGER Accuracy Improvement Project (MTAIP). The Census Bureau worked through their prime contractor, The Harris Corporation, to verify that all local street centerline GIS files meet or exceed the spatial accuracy requirement of 7.6 meters. The Harris Corporation contracted with MDA Geospatial Services, Inc. of British Columbia to acquire aerial photography to be used in the evaluation/data development process for selected counties.
Time Period of Content Date 2006
Currentness Reference The photography was flown between August and November 2006.
Progress Complete
Maintenance and Update Frequency None planned
Spatial Extent of Data 40 Minnesota counties. See list in Place Keywords, and see MDA's map at http://www.lmic.state.mn.us/chouse/images/doq06mda_map.jpg (no legend available for colors on map)
Bounding Coordinates -97.5
-91
49.5
43
Place Keywords Minnesota, Aitkin, Beltrami (partial), Big Stone, Carlton, Cass, Clearwater, Cottonwood, Crow Wing, Fillmore, Grant, Hubbard, Itasca, Jackson, Kandiyohi, Koochiching, Lac qui Parle, Le Sueur, Lyon, Marshall, Martin, Mower, Murray, Nicollet, Olmsted, Pennington, Pine, Pope, Renville, Rock, Roseau, St. Louis, Sibley, Stearns, Stevens, Traverse, Wadena, Watonwan, Wilkin, Winona, Yellow Medicine
Theme Keywords imageryBaseMapsEarthCover, Digital Orthorectified Image, Digital Orthophoto Quad, Ortho, Orthophoto, DOQ, Air Photo, Air Photography, Aerial Photo, Aerial Photography
Theme Keyword Thesaurus ISO 19115 Topic Category
Access Constraints None
Use Constraints Redistribution Conditions: In obtaining these data from LMIC, it is understood that you and/or your organization have the right to use them for any internal purpose. If you modify them, you should document those changes in a metadata record that should accompany all redistributed data. If you transmit or provide these data in any form to another user, the data MUST be accompanied by a copy of this disclaimer and all documentation provided with the original data set including the full metadata record.
Contact Person Information Pete Olson, Senior Programing Specialist
Land Management Information Center
658 Cedar Street, Room 300
St. Paul, Minnesota 55155
Phone: 651-201-2467
FAX: 651-296-3698
E-mail: pete.olson@state.mn.us
Browse Graphic none available
Browse Graphic File Description
Associated Data Sets For information on other air photos available for Minnesota, see http://www.lmic.state.mn.us/chouse/airphoto/index.html

 
Section 2 Data Quality Information Top of full metadata Top of page
Attribute Accuracy No information provided by MDA.

Colors appear generally muted when compared with U.S. Department of Agriculture Farm Service Agency imagery from the National Agricultural Imagery Program. Colors also vary depending on whether a particular area was flown leaf-on in the summer or leaf-off during the late fall.
Logical Consistency N/A
Completeness The data covers 40 counties in Minnesota, approximately 45,081 square miles. The remaining 47 Minnesota counties are not included in this dataset.

Beltrami County is only partially covered (areas in the north, east and west portions of the county and the middle of Lower Red Lake are not covered). Several tiles in south Crow Wing County are missing from the WMS service -- these will be filled in.
Horizontal Positional Accuracy The accuracy of the digital orthoimagery is 5 meters at CE95 (95% Circular Error), according to MDA.
Vertical Positional Accuracy N/A
Lineage MDA Geospatial Services, Inc., flew the areas at a flight height of 27,000 feet with a Zeiss Top 15 camera. The film was scanned at a resolution of 14 microns to yield a ground sample distance of 1 meter pixel resolution on the resulting digital imagery. The digital imagery was processed in DOQQ (3.75 X 3.75) format with overedge coverage.

The U.S. Geological Survey procured the imagery from MDA in order to make the data available to the general public, and delivered it to the Land Management Information Center (LMIC) on March 26, 2008. Files were in GeoTIFF format, were tiled by quarter-quad, and were grouped by county. Nine counties were in UTM Zone 14: Big Stone, Grant, Lac qui Parle, Marshall, Pennington, Rock, Stevens, Traverse, Wilkin. The remaining counties were in UTM Zone 15.

LMIC reprojected the UTM Zone 14 files into Zone 15 using EPPL7 GIS software. The files were then read into LMIC's WMS service and pyramid files were built to speed display.
Source Scale Denominator
 
Section 3 Spatial Data Organization Information Top of full metadata Top of page
Native Data Set Environment GeoTIFF
Geographic Reference for Tabular Data N/A
Spatial Object Type Raster
Vendor Specific Object Types N/A
Tiling Scheme Original files were tiled by quarter-quad. WMS delivery is seamless.
 
Section 4 Spatial Reference Information Top of full metadata Top of page
Horizontal Coordinate Scheme UTM
Ellipsoid GRS80
Horizontal Datum NAD83
Horizontal Units Meters
Distance Resolution
Cell Width 1
Cell Height 1
UTM Zone Number 15E
 
Section 5 Entity and Attribute Information Top of full metadata Top of page
Entity and Attribute Overview 8-bit pixels represent brightness values 0 - 255. There are three color bands: red, green and blue.
Entity and Attribute Detailed Citation None
 
Section 6 Distribution Information Top of full metadata Top of page
Publisher Minnesota Land Management Information Center (LMIC)
Publication Date 04/02/2008
Contact Person Information Nancy Rader
GIS Data Coordinator
Land Management Information Center
658 Cedar Street, Room 300
St. Paul, Minnesota 55155
Phone: 651-201-2489
FAX: 651-296-3698
E-mail: clearing.house@state.mn.us
Distributor's Data Set Identifier 2006 DOQs - 40 county, MDA
Distribution Liability Limitations: Although extensive effort has been made to produce error free and complete data, all geographic information has limitations due to the scale, resolution, date and interpretation of the original source materials. You should consult available data documentation (metadata) for these particular data to determine their limitations and the precision to which they depict distance, direction, location or other geographic characteristics. These data may be subject to periodic change without prior notification.

No Warranty: These data are provided as is, without any warranty whatsoever, including but not limited to any warranty as to their performance, merchantability, or fitness for any particular purpose.

Liability: The entire risk as to the results of the use of these data is assumed by the user. LMIC is not responsible for any interpretation or conclusions based on these data made by those who acquire or use it. LMIC shall not be liable for any direct, indirect, special, incidental, compensatory or consequential damages or third party claims resulting from the use of these data, even if LMIC has been advised of the possibility of such potential loss or damage. In States that do not allow the exclusion or limitation of incidental or consequential damages, you may not use these data.

Redistribution Conditions: In obtaining these data from LMIC, it is understood that you and/or your organization have the right to use them for any internal purpose. If you modify them, you should document those changes in a metadata record that should accompany all redistributed data. If you transmit or provide these data in any form to another user, the data MUST be accompanied by a copy of this disclaimer and all documentation provided with the original data set including the full metadata record.

Data Delivered on Electronic Media: If these data have been requested from LMIC on magnetic media, CD-ROM or any other physical media, LMIC will deliver this product in the computer-readable format agreed upon with the requestor. LMIC will re-issue these data if they are determined unreadable by correctly adjusted computer input devices, or when the medium is delivered in a damaged condition. Requests for re-issue of this digital data product must be made within 30 days of the date shipped from LMIC.
Transfer Format Name JPEG
Transfer Format Version Number
Transfer Size Varies by area selected.
Ordering Instructions WMS service: Clicking on the link below will direct you to a webpage explaining how to access the imagery and view it directly in your GIS software.

If other delivery options become available, information will be added to this documentation.
Online Linkage Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" above.
 
Section 7 Metadata Reference Information Top of full metadata Top of page
Metadata Date 05/26/2009
Contact Person Information Nancy Rader, GIS Data Coordinator
Land Management Information Center
658 Cedar Street, Room 300
St. Paul, Minnesota 55155
Phone: 651-201-2489
FAX: 651-296-3698
E-mail: clearing.house@state.mn.us
Metadata Standard Name Minnesota Geographic Metadata Guidelines
Metadata Standard Version 1.2
Metadata Standard Online Linkage http://www.lmic.state.mn.us/gc/stds/metadata.htm


This page last updated: 05/26/2009