View Metadata
Aerial Imagery for Lincoln County, WI 2024
- Identification Information
- Spatial Reference Information
- Data Quality Information
- Distribution Information
- Content Information
- Spatial Representation Information
- Metadata Reference Information
Identification Information
- Citation
- Title
- Aerial Imagery for Lincoln County, WI 2024
- Originator
- Lincoln County
- Creation Date
- 2024-04-13
- Publication Date
- 2024-04-13
- Geospatial Data Presentation Form
- mapDigital
- Collection Title
- Aerial Imagery
- Abstract
- Ayres Associates provided Lincoln County, Wisconsin, with digital, 4-band orthoimagery services in 2024 as part of WROC. The aerial imagery was collected on April 13th, 15th, and 21st using a Vexcel UltraCam Eagle M3 sensor mounted in a fixed-wing aircraft. Aerial imagery was collected to support 0.5 foot ground sample distance (GSD) orthoimagery to meet ASPRS Class II horizontal accuracy specifications at 1" = 100' map scale. The 6-inch pixel orthoimagery was produced to meet or exceed a horizontal accuracy of 1.4 feet RMSE according to ASPRS Positional Accuracy Standards for Digital Geospatial Data. Resultant orthoimagery was rectified to a DEM created from LiDAR collected in 2015. Orthoimagery was delivered in PLSS section GeoTiff and MrSID tiles and a project wide MrSID mosaic. The orthoimagery was delivered according to a section tile schematic. The project area covers approximately 906 square miles. Supplemental Information: The Wisconsin Regional Orthoimagery Consortium (WROC) is a multi-entity group of county members and partners led by regional planning commissions (RPCs) and WROC representatives from Ayres Associates. The goal of the consortium is to build and sustain a multi-participant program to acquire digital orthoimagery and elevation data throughout Wisconsin. Orthoimagery was collected for Lincoln County in 2024 to provide consistent deliverable products and accuracy standards for each of the participating entities.
- Purpose
- This data is intended for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data. [This project established digital, 4-band orthoimagery for Lincoln County, Wisconsin as part of the Wisconsin Regional Orthoimagery Consortium (WROC).]
- Supplemental Information
- This is an archived dataset held at UW-Madison.
- Temporal Extent
- Time Instant
- 2024-04-13T00:00:00
- Bounding Box
- West
- -90.04690386
- East
- -89.42521643
- North
- 45.55539053
- South
- 45.11914795
- ISO Topic Category
- imageryBaseMapsEarthCover
- Place Keyword
-
Lincoln County, Wisconsin
- Place Keyword Thesaurus
- Theme Keyword
-
Wisconsin Regional Orthoimagery Consortium (WROC)
- Theme Keyword Thesaurus
- Resource Constraints
- Use Limitation
- Although this data is being distributed by the University of Wisconsin-Madison, no warranty expressed or implied is made by the University as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the University in the use of this data, or related materials. [Not to be used for purposes other than those strictly outlined in the 2023-25 WROC Lincoln County program.]
- Status
- completed
- Maintenance and Update Frequency
- notPlanned
- Language
- eng
- Credit
- Lincoln County, Ayres Associates
- Point of Contact
- Contact
- Norm Bushor
- Position Name
- Land Information Program Manager
- Delivery Point
- 801 N. Sales St., Suite 103
- City
- Merrill
- Administrative Area
- Wisconsin
- Postal Code
- 54452
- Country
- US
Spatial Reference Information
- Reference System Identifier
- Code
- 7617
- Code Space
- EPSG
- Version
- 8.8(10.4.0)
Data Quality Information
- Lineage
- Process Step
- Description
- Ground control consisted of photo identifiable surveyed points. The imagery was collected using a Vexcel UltraCam Eagle M3 sensor at 14.5 cm GSD. Image quality was verified during the post flight review phase. Factors considered during this review included, but were not limited to, the presence of cloud cover, contrails, light conditions and sun flare. A rigorous Aerotriangulation process was performed and supplemented by the photo ID survey points. The triangulated strips were rectified to a DEM created from LiDAR collected in 2015. The imagery was mosaicked using manual seamlines generation and tone/color balanced to a project-wide consistency. PLSS section RGBN tiles were extracted from the mosaic and each individual tile was reviewed for artifacts and anomalies and adjusted as part of quality control procedures. The images were reviewed for rectification problems such as bridge displacements and seamline issues caused by the underlying digital elevation model. When necessary, local corrections to the imagery were performed to minimize such effects.
- Process Date
- 2024-05-13T00:00:00
- Process Step
- Description
- Added data to the WisconsinView Data Archive (WDA).
- Process Date
- 2026-06-18T00:00:00
Distribution Information
- Format Name
- GeoTIFF
- Format Version
- 1.0
- Distributor
- UW-Madison
- Online Access
- https://web.s3.wisc.edu/wsco-wisconsinview/imagery/counties/WI/Lincoln/2024/
- Protocol
- Name
- Access from GeoData@Wisconsin
- Function
- download
Content Information
- Content Type
- image
Spatial Representation Information
- Raster
- Number of Dimensions
- 2
- Column Count
- 11484
- Row Count
- 11434
- Cell Geometry Type
- area
- Corner Points
- Point
- 327246.206000 126751.235000
- Point
- 327246.206000 132468.235000
- Point
- 332988.206000 132468.235000
- Point
- 332988.206000 126751.235000
- Center Point
- 330117.206000 129609.735000
Metadata Reference Information
- Hierarchy Level
- dataset
- Metadata File Identifier
- 5bdc5cbe-44c8-4def-b51a-5795305a0eeb
- Metadata Date Stamp
- 2026-06-18
- Metadata Standard Name
- ISO 19139 Geographic Information - Metadata - Implementation Specification
- Metadata Standard Version
- 2007
- Character Set
- utf8