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Aerial Imagery for Barron County, WI 2024

Identification Information

Citation
Title
Aerial Imagery for Barron County, WI 2024
Originator
Barron County
Creation Date
2024-04-13
Publication Date
2024-04-13
Geospatial Data Presentation Form
mapDigital
Collection Title
Aerial Imagery
Abstract
Ayres Associates provided Barron County, Wisconsin with digital, 4-band orthoimagery services in 2024 as part of WROC. The aerial imagery was collected on April 13th and 14th using a Leica Geosystems DMC III 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 data previously acquired in 2019. Orthoimagery was delivered in 2,000' x 2,000' custom GeoTiff and MrSID tiles and a project wide MrSID mosaic. The project area covers approximately 890 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 Barron 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 Barron 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
-92.15640499
East
-91.54040877
North
45.63987843
South
45.20648875
ISO Topic Category
imageryBaseMapsEarthCover
Place Keyword
Barron 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 Barron County program.]
Status
completed
Maintenance and Update Frequency
notPlanned
Language
eng
Credit
Barron County, Ayres Associates
Point of Contact
Contact
David Gifford
Position Name
Director of Land Services
Delivery Point
335 E. Monroe Ave., Rm 2104
City
Barron
Administrative Area
Wisconsin
Postal Code
54812
Country
US
Email
David.Gifford@co.barron.wi.us
Phone
(715) 537-6375

Spatial Reference Information

Reference System Identifier
Code
7589
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 Leica Geosystems DMC III sensor at 14.5cm 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 data previously acquired in 2019. The imagery was mosaicked using manual seamlines generation and tone/color balanced to a project-wide consistency. Custom 2,000' x 2,000' 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/Barron/2024/
Protocol
Name
Access from GeoData@Wisconsin
Function
download

Content Information

Content Type
image

Spatial Representation Information

Raster
Number of Dimensions
2
Column Count
4000
Row Count
4000
Cell Geometry Type
area
Corner Points
Point
226000.000000 100000.000000
Point
226000.000000 102000.000000
Point
228000.000000 102000.000000
Point
228000.000000 100000.000000
Center Point
227000.000000 101000.000000

Metadata Reference Information

Hierarchy Level
dataset
Metadata File Identifier
a328d25a-ad2a-4a2c-8aed-e7fe0f5fcdfa
Metadata Date Stamp
2026-06-18
Metadata Standard Name
ISO 19139 Geographic Information - Metadata - Implementation Specification
Metadata Standard Version
2007
Character Set
utf8
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