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