High Resolution Orthoimagery, Douglas County, Minnesota, Spring 2016

This page last updated: 12/12/2018
Metadata created using Minnesota Geographic Metadata Guidelines

Go to Section:
1. Overview
2. Data Quality
3. Data Organization
4. Coordinate System
5. Attributes
6. Distribution - Get Data
7. Metadata Reference

Section 1 Overview
Originator Douglas County, Minnesota
Title High Resolution Orthoimagery, Douglas County, Minnesota, Spring 2016
Abstract This dataset consists of 0.075-meter (3-inch), natural color leaf-off orthoimages covering Douglas County. Data were collected by Pictometry.
Purpose The purpose of this project was to collect high resolution, orthorectified images of Douglas County.
Time Period of Content Date 2016
Currentness Reference The photography was flown between April 8 and April 29, 2016.
Progress Complete
Maintenance and Update Frequency Unknown
Spatial Extent of Data Douglas County
Bounding Coordinates -95.773411
Place Keywords Minnesota, MN, Douglas County
Theme Keywords imageryBaseMapsEarthCover, rectified photograph, rectified image, orthophoto, orthoimage, DOQ, digital orthophoto, aerial photograph, rectified image, county orthophoto
Theme Keyword Thesaurus ISO 19115 Topic Category
Access Constraints None.
Use Constraints None. However, users should be aware that temporal changes may have occurred since this data set was collected and that some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations.
Contact Person Information Jim Dahl, GIS Coordinator
Douglas County Public Works
526 Willow Drive, P.O. Box 398
Alexandria, MN  56308
Phone: 320-762-2933
Email: jimd@co.douglas.mn.us
Browse Graphic Click to view a data sample.
Sample image of a golf course area
Associated Data Sets For information on other air photos available for Minnesota, see https://www.mngeo.state.mn.us/chouse/airphoto/index.html

Section 2 Data Quality
Attribute Accuracy No report provided.
Logical Consistency Not applicable.
Completeness Imagery covers the entire county.
Horizontal Positional Accuracy No report provided.
Vertical Positional Accuracy Not applicable.
Lineage Processing Steps (Pictometry)

Pictometry collected and processed the 3-inch resolution imagery and delivered it to Douglas County as one county file in ECW compressed format. The imagery was in Douglas County coordinates, units measured in feet (NAD_1983_HARN_Adj_MN_Douglas_Feet).

Processing Steps (MnGeo)

The county provided the imagery to the Minnesota Geospatial Information Office. MnGeo staff reprojected the imagery from Douglas County coordinates to UTM Zone 15 coordinates with .075-meter resolution and created a WMS service to distribute the imagery.

This metadata record was compiled by MnGeo using information supplied by Douglas County.

Section 3 Spatial Data Organization (not used in this metadata)

Section 4 Coordinate System
Horizontal Coordinate Scheme Universal Transverse Mercator
UTM Zone Number 15
Horizontal Datum NAD83
Horizontal Units meters
Cell Width .075
Cell Height .075

Section 5 Attributes
Overview Natural color orthoimagery is organized in three color bands or channels which represent the red, green and blue portions of the spectrum. Each image pixel is assigned a triplet of numeric values, one for each color band. Numeric values range from 0 to 255.
Detailed Citation
Table Detail:

Section 6 Distribution
Publisher Minnesota Geospatial Information Center (MnGeo)
Publication Date 01/05/2017
Contact Person Information Nancy Rader, GIS Data Specialist
Minnesota Geospatial Information Office (MnGeo)
658 Cedar Street, Room 300
St. Paul, MN  55155
Phone: 651-201-2489
Email: gisinfo.mngeo@state.mn.us
Distributor's Data Set Identifier doq_douglas16
Distribution Liability MnGeo's data disclaimer is online: https://www.mngeo.state.mn.us/chouse/disclaimer.html
Ordering Instructions The imagery is available to view via WMS (Web Mapping Service) from MnGeo's Geospatial Image Server. The Minnesota Geospatial Image Service web pages provide the url to connect to the Geospatial Image Server as well as information about how to use WMS services. Due to file size there is currently no option to download the photos.

Access via the Minnesota Geospatial Commons by clicking on the 'Online Linkage' field below.
Online Linkage I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details.

Section 7 Metadata Reference
Metadata Date 12/12/2018
Contact Person Information Nancy Rader, GIS Data Specialist
Minnesota Geospatial Information Office (MnGeo)
658 Cedar Street, Room 300
St. Paul, MN  55155
Phone: 651-201-2489
Email: gisinfo.mngeo@state.mn.us
Metadata Standard Name Minnesota Geographic Metadata Guidelines
Metadata Standard Version 1.2
Metadata Standard Online Linkage https://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm

This page last updated: 12/12/2018
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