| 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 -95.119606 46.118019 45.749261 | |||
| 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be aware that temporal changes may have occurred since this data set was collected and that some parts of this data may no longer represent actual surface conditions.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 | |||
