Digital Orthorectified Images, East-Central Minnesota, One-Foot Resolution, 2010

This page last updated: 08/05/2011
Metadata created using Minnesota Geographic Metadata Guidelines


Metadata Summary

Originator Minnesota Department of Natural Resources, Surdex Corporation
Abstract This dataset contains leaf-off 4 Band (RGBI) digital orthophoto imagery of Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and Washington counties in east-central Minnesota. It was produced at 1-foot (30 cm) resolution from new aerial photography captured in Spring 2010.

Funding for this data was provided by the Minnesota Natural Heritage Fund, the Minnesota Clean Water Legacy Act, The Environmental and Natural Resources Trust Fund, the Metropolitan Council, the National Geospatial-Intelligence Agency (NGA) and the Metropolitan Mosquito Control District.

This metadata record was created by MnGeo using information supplied by Surdex Corporation.
Browse Graphic none available
Time Period of Content Date
Currentness Reference Ground condition. Flown mid-April, 2010
Access Constraints Unrestricted.
Use Constraints Imagery is the property of the State of Minnesota.

Redistribution conditions: In obtaining this data from MnGeo, it is understood that you and/or your organization have the right to use it for any purpose. If you modify it, you are encouraged to apply responsible best practices by documenting those changes in a metadata record. If you transmit or provide the data to another user, it is your responsibility to provide appropriate content, limitation, warranty and liability information as you see fit.
Distributor Organization Minnesota Geospatial Information Office
Ordering Instructions These air photos are available via MnGeo's WMS service. Click on the link below for more information about WMS services and how to use them.
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 Orthorectified Images, East-Central Minnesota, One-Foot Resolution, 2010

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 Minnesota Department of Natural Resources, Surdex Corporation
Title Digital Orthorectified Images, East-Central Minnesota, One-Foot Resolution, 2010
Abstract This dataset contains leaf-off 4 Band (RGBI) digital orthophoto imagery of Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and Washington counties in east-central Minnesota. It was produced at 1-foot (30 cm) resolution from new aerial photography captured in Spring 2010.

Funding for this data was provided by the Minnesota Natural Heritage Fund, the Minnesota Clean Water Legacy Act, The Environmental and Natural Resources Trust Fund, the Metropolitan Council, the National Geospatial-Intelligence Agency (NGA) and the Metropolitan Mosquito Control District.

This metadata record was created by MnGeo using information supplied by Surdex Corporation.
Purpose The orthophotos will be used by the Minnesota DNR to update the National Wetland Inventory maps and as a base layer for mapping wetlands and other business needs. This type of leaf-off photography is a critical component for a variety of land management applications including transportation planning, wetland mapping, urban planning, forest management, soil mapping, and utility siting.
Time Period of Content Date
Currentness Reference Ground condition. Flown mid-April, 2010
Progress Complete
Maintenance and Update Frequency Irregular
Spatial Extent of Data 7-county Twin Cities metro: Anoka, Carver, Dakota, Hennepin, Ramsey, Scott and Washington counties, Minnesota
Bounding Coordinates -94.34
-92.62
45.75
44.43
Place Keywords Anoka, Carver, Dakota, Hennepin, Ramsey, Scott, Washington, Minnesota
Theme Keywords imageryBaseMapsEarthCover, Orthophotography, Digital Orthophotography, Ortho, Orthophotos, Digital Orthorectified Images, Digital Orthophotos, DOQ, DOQQ, Imagery, Images, Aerial Photography, Aerial Photos, Digital Aerial Photography, Air Photo, Color Infrared, Four Band Imagery
Theme Keyword Thesaurus ISO 19115 Topic Category
Access Constraints Unrestricted.
Use Constraints Imagery is the property of the State of Minnesota.

Redistribution conditions: In obtaining this data from MnGeo, it is understood that you and/or your organization have the right to use it for any purpose. If you modify it, you are encouraged to apply responsible best practices by documenting those changes in a metadata record. If you transmit or provide the data to another user, it is your responsibility to provide appropriate content, limitation, warranty and liability information as you see fit.
Contact Person Information Steve Kloiber, Wetland Monitoring Coordinator
Minnesota Department of Natural Resources
500 Lafayette Road
St. Paul, MN 55155
Phone: 651-259-5164
FAX:
E-mail: steve.kloiber@state.mn.us
Browse Graphic none available
Browse Graphic File Description
Associated Data Sets Some areas of this project were flown at half-meter resolution; see: http://www.mngeo.state.mn.us/chouse/metadata/ecmn2010_doqq_50cm.html

For information on other air photos available for Minnesota, see: http://www.mngeo.state.mn.us/chouse/airphoto/

 
Section 2 Data Quality Information Top of full metadata Top of page
Attribute Accuracy N/A
Logical Consistency N/A
Completeness Created using native 1-foot and resampled 0.5-foot for a complete 1.0-foot gsd data set over 7 counties in metropolitan Minneapolis/St. Paul area.
Horizontal Positional Accuracy An overall accuracy for this product was targeted for 1.5 meters, CE95. Surdex collected Airborne GPS data at the time of image acquisition and supplemented with several control points surveyed by ground crews, including a higher density of points in Scott and Dakota Counties, where the 1' product was resampled from a 0.5' product. A total of 87 control points were used to assess the positional accuracy. 0.85, value in meters, CE95.
Vertical Positional Accuracy None - this is a horizontal only product.
Lineage Multiple aircraft were deployed to east central Minnesota in early April 2010 for digital image acquistion during leaf-off conditions. Cessna Conquests equipped with Intergraph DMC (Digital Mapping Cameras) captured 4 band imagery over the project sites. Imagery was captured at an altittude of 10,000' above mean terrain for most of the project area though some data was captured at 5,000' above mean terrain and resampled for multiple resolution delivery. Conditions allowed up 5% cloud conditions per frame. All four bands (rgb natural color plus near infrared) of raw camera data was processed using Intergraph PPS software coupled with Surdex proprietary image handling software for color correction and dodging. Post processing of Airborne and Ground GPS data was performed with Waypoint Consulting's GrafNav software. Aerial Triangulation was completed using Intergraph ImageStation Automatic Triangulation and rectification of imagery (to a variety of sources from 10m DEM to 3d stereo collection) was completed using Surdex proprietary software . Image mosaicking, QC and final DOQQ products were produced using proprietary Surdex software.
Source Scale Denominator 25400
 
Section 3 Spatial Data Organization Information Top of full metadata Top of page
Native Data Set Environment Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.4000
Geographic Reference for Tabular Data
Spatial Object Type Raster
Vendor Specific Object Types
Tiling Scheme
 
Section 4 Spatial Reference Information Top of full metadata Top of page
Horizontal Coordinate Scheme UTM
Ellipsoid Geodetic Reference System 80
Horizontal Datum
Horizontal Units Meters
Distance Resolution
Cell Width 0.300000
Cell Height 0.300000
UTM Zone Number 15
 
Section 5 Entity and Attribute Information Top of full metadata Top of page
Entity and Attribute Overview Imagery has 4 Bands with the order of Red, Green, Blue and Near Infrared
Entity and Attribute Detailed Citation
 
Section 6 Distribution Information Top of full metadata Top of page
Publisher Minnesota Department of Natural Resources
Publication Date 10/06/2010
Contact Person Information Nancy Rader
GIS Data Coordinator
Minnesota Geospatial Information Office
658 Cedar Street, Room 300
St. Paul, MN 55155
Phone: 651-201-2489
FAX:
E-mail: clearing.house@state.mn.us
Distributor's Data Set Identifier Downloadable Data
Distribution Liability For data or maps delivered online or by physical media by the Minnesota Geospatial Information Office (MnGeo)

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. Users should consult available data documentation (metadata) for this particular data to determine limitations and the precision to which the data depict distance, direction, location or other geographic characteristics. Data may be subject to change without prior notification.

No warranty: Data is provided 'as is,' without any warranty whatsoever, including but not limited to any warranty as to performance, merchantability or fitness for any particular purpose.

Liability: The entire risk as to the results of the use of this data is assumed by the user. MnGeo is not responsible for any interpretation or conclusions made by those who acquire or use it. MnGeo shall not be liable for any direct, indirect, special, incidental, compensatory or consequential damages or third-party claims resulting from the use of this data, even if MnGeo 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, this data may not be used.

Redistribution conditions: In obtaining this data from MnGeo, it is understood that you and/or your organization have the right to use it for any purpose. If you modify it, you are encouraged to apply responsible best practices by documenting those changes in a metadata record. If you transmit or provide the data to another user, it is your responsibility to provide appropriate content, limitation, warranty and liability information as you see fit.

Data delivered on electronic media: If data has been requested from MnGeo on magnetic media, CD or any other physical media, MnGeo will deliver it in the computer-readable format agreed upon with the requestor. MnGeo will reissue data if it is unreadable by correctly adjusted computer input devices or when the media is delivered in a damaged condition. Requests for reissue of this digital data product must be made within 30 days of the date shipped from MnGeo.
Transfer Format Name
Transfer Format Version Number
Transfer Size
Ordering Instructions These air photos are available via MnGeo's WMS service. Click on the link below for more information about WMS services and how to use them.
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 08/05/2011
Contact Person Information Nancy Rader, GIS Data Coordinator
Minnesota Geospatial Information Office
658 Cedar Street, Room 300
St. Paul, MN 55155
Phone: 651-201-2489
FAX:
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.gis.state.mn.us/stds/metadata.htm


This page last updated: 08/05/2011