View Metadata

Orthoimagery (WROC) Wood County, WI 2015

Identification Information

Citation
Title
Orthoimagery (WROC) Wood County, WI 2015
Originator
Wood County
Creation Date
2015-03-24
Publication Date
2015-03-24
Geospatial Data Presentation Form
mapDigital
Abstract
Ayres Associates provided Wood County, Wisconsin with digital, color orthoimagery services in 2015 as part of WROC. The aerial imagery was collected on March 24th using a Microsoft Vexcel UltraCam Eagle sensor mounted in a fixed-wing aircraft. Aerial imagery was collected to support 0.5 ground sample distance (GSD) orthoimagery to meet ASPRS Class II horizontal accuracy specifications at 1" = 100' map scale. The horizontal accuracy meets or exceeds 2.0 feet RMSE using the National Standards for Spatial Data Accuracy (NSSDA) standards. Resultant orthoimagery was rectified to the new DEM from an existing LiDAR surface created as part of the CDBG funded WROC program. Orthoimagery was delivered in PLSS section GeoTiff and MrSID tiles and a project wide MrSID mosaic. The orthoimagery was deilvered according to a section tile schematic. The total project area is 809 sq. miles, plus a 500-ft buffer around the county boundary. Imagery collected for Wood County will additionally be used for the 2015 mapping services provided to the municipalities of Marshfield and Wisconsin Rapids. Geographic Description: Wood County is located in central Wisconsin, where the north and east parts of the county lie in the Northern Highlands region, characterized by heavily forrested lands situated at higher elevations compared to the rest of the state. Conversely, the south and west portions are in the Central Plain region, dominated by flat, marshy landscape, which provides the ideal conditions for making Wood County one of the top producers of cranberries in the state. Supplemental Information: The Wisconsin Regional Orthophotography Consortium (WROC) is a multi-entity ground 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 Wood County in 2015 to provide consistent deliverable products and accuracy standards for each of the participating entities.
Purpose
This project established digital, color orthoimagery for Wood County, Wisconsin as part of the Wisconsin Regional Orthophotography Consortium (WROC).
Supplemental Information
Wood County imagery (flown as part of the WI Regional Orthophotography Consortium 2015 project) has 6-inch resolution. The orthophoto tile index can be accessed by visiting the Wood County LiDAR and Orthophoto Data Distribution App: http://woodwi.maps.arcgis.com/home/index.html
Temporal Extent
Time Instant
2015-03-24T00:00:00
Bounding Box
West
-90.31800059
East
-89.841705
North
44.787738
South
44.512662
ISO Topic Category
imageryBaseMapsEarthCover
Place Keyword
Wood County
Wisconsin
Place Keyword Thesaurus
Theme Keyword
Raster
Theme Keyword Thesaurus
FGDC
Theme Keyword
Aerial Imagery
Theme Keyword Thesaurus
LCSH
Status
completed
Maintenance and Update Frequency
notPlanned
Language
eng
Credit
Wood County
Point of Contact
Contact
Justin Conner
Position Name
Land Records Coordinator
Delivery Point
400 Market Street
City
Wisconsin Rapids
Administrative Area
Wisconsin
Postal Code
54494
Country
US
Email
jconner@co.wood.wi.us
Phone
(715) 421-8469

Spatial Reference Information

Reference System Identifier
Code
7645
Code Space
EPSG
Version
9.0.1

Data Quality Information

Lineage
Process Step
Description
Ground control consisted of photo identifiable surveyed points. The imagery was collected using a Microsoft Vexcel UltraCam Eagle 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 with an existing LiDAR surface created as part of the CDBG funded WROC program. The imagery was mosaicked using manual seamlines generation and tone/color balanced to a project-wide consistency. PLSS section RGB and CIR 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
2015-04-27T00:00:00

Distribution Information

Format Name
Raster Dataset
Distributor
Wood County
Online Access
http://imagery.woodcogis.com/
Protocol
WWW:DOWNLOAD-1.0-ftp—download
Name
Wood County ftp access
Function
download
Online Access
http://woodwi.maps.arcgis.com/home/index.html
Protocol
WWW:LINK-1.0-http--link
Name
Wood County GIS site
Function
information

Content Information

Content Type
image

Spatial Representation Information

Raster
Number of Dimensions
2
Column Count
268633
Row Count
200180
Cell Geometry Type
area
Corner Points
Point
590785.478000 496481.777000
Point
590785.478000 596571.777000
Point
725101.978000 596571.777000
Point
725101.978000 496481.777000
Center Point
657943.728000 546526.777000

Metadata Reference Information

Hierarchy Level
dataset
Metadata File Identifier
CE2433C0-7D86-4A5F-9792-256F334E04F1
Metadata Date Stamp
2017-04-19
Metadata Standard Name
ISO 19139 Geographic Information - Metadata - Implementation Specification
Metadata Standard Version
2007
Character Set
utf8
Download