• Aerial Photography:

    2005 Aerial Photography Waukesha County, Wisconsin

  • Waukesha County 2005 Digital Orthophotography
  • Identification Information
    Citation:
    Citation Information:
    Originator: Aero-Metric, Inc., Sheboygan, Wisconsin, on behalf of Waukesha County Department of Parks and Land Use
    Publication Date: 2005
    Title: Waukesha County 2005 Digital Orthophotography
    Geospatial Data Presentation Form: raster digital data
    Publication Information:
    Publication Place: Waukesha, Wisconsin
    Publisher: Waukesha County Department of Parks and Land Use

    Description:
    Abstract: This data set consists of digital orthophoto images acquired with a Digital Mapping Camera in the spring of 2005. The color images were taken from a nominal flight elevation of 5,000 feet, were compiled at one-inch-equals-100-feet scale, and have a pixel resolution of six inches (6"). The image files are available in GeoTIFF format and MrSID format. Each GeoTIFF format file covers an area of 5,000 by 5,000 feet on the Wisconsin State Plane Coordinate System, South Zone, NAD 1927. The 735 GeoTIFF format files have zero overlap betweeen images and have accompanying "world" (".tfw") files. The MrSID format files were prepared from mosaics of the GeoTIFF format files. Each MrSID format file covers an area of approximately one-half of a U.S. Public Land Survey System survey township. The 32 MrSID format files contain imagery beyond the boundaries of the survey township and do overlap. The MrSID files have accompanying "world" (".sdw") files.
    Purpose: This data set was collected to provide an inventory of orthophoto images for use in county planning programs in Waukesha County and for regional planning activities in Southeastern Wisconsin.

    Time Period of Content:
    Time Period Information:
    Single Date/Time:
    Calendar Date: 2005
    Time of Day: Unknown
    Currentness Reference: Ground condition of aerial orthophotography (Spring 2005)

    Status:
    Progress: complete
    Maintenance and Update Frequency: None planned

    Spatial Domain:
    Bounding Coordinates:
    West Bounding Coordinate: -88.5423
    East Bounding Coordinate: -88.0635
    North Bounding Coordinate: 43.19603
    South Bounding Coordinate: 42.84134

    Keywords:
    Theme:
    Theme Keyword Thesaurus: Wisconsin Land Information Program Thesaurus
    Theme Keyword: aerial photography
    Theme Keyword: orthophotography
    Theme Keyword: raster imagery
    Theme Keyword: GeoTIFF
    Theme Keyword: MrSID

    Place:
    Place Keyword Thesaurus: Counties and County Equivalents of the States of the United States and the District of Columbia (FIPS Pub 6-3)
    Place Keyword: Waukesha County

    Access Constraints: There are no legal prerequisites for accessing this data set. Potential users should contact the Waukesha County Department of Parks and Land Use.
    Use Constraints: Orthophoto files should be used for their intended purpose and should not take the place of ground surveys for highly detailed requirements. The information and depictions herein are for informational purposes only and Waukesha County specifically disclaims accuracy in this reproduction and specifically admonishes and advises that if specific and precise accuracy is required, the same should be determined by procurement of certified maps, surveys, plats, Flood Insurance Studies, or other official means. Waukesha County will not be responsible for any damages which result from third party use of the information and depictions herein, or for use which ignores this warning. The orthophotography files were obtained in Spring 2005 and may not reflect current conditions. Site investigation may be necessary to determine current ground conditions.

    Point of Contact:
    Contact Information:
    Contact Organization Primary:
    Contact Organization: Southeastern Wisconsin Regional Planning Commission, GIS Division
    Contact Position: GIS Manager
    Contact Address:
    Address Type: mailing and physical address
    Address: W239 N1812 Rockwood Dr.
    City: Waukesha
    State or Province: Wisconsin
    Postal Code: 53188
    Contact Voice Telephone: (262) 547-6721
    Contact Facsimile Telephone: (262) 547-1103
    Data Quality Information
    Logical Consistency Report: This data set was created from aerial photography utilizing large-scale digital terrain model files. The orthophoto files were reviewed for positional accuracy by comparision of the imagery to ground survey control features (section and quarter-section corners of the U.S. Public Land Survey System) and to large-scale topographic mapping.

    Completeness Report: This data set was compiled by a photogrammetric engineering firm under subcontract to the Southeastern Wisconsin Regional Planning Commission. The orthophoto files cover the entirety of Waukesha County and a portion of Jefferson County.

    Positional Accuracy:
    Horizontal Positional Accuracy:
    Horizontal Positional Accuracy Report: The orthophoto files in this data set were prepared to meet National Map Accuracy Standards for 1:1200 scale (one inch equals 100 feet scale) mapping. The resolution of each pixel in the orthophoto files is six inches (6"). Therefore, ninety percent or more of all well-defined planimetric features visible in the orthophoto files are within approximately four feet (4') of their true position on the ground.

    Lineage:
    Source Information:
    Source Citation:
    Citation Information:
    Originator: Aero-Metric, Inc., Sheboygan, Wisconsin; Wisconsin land surveyors; various other originators
    Publication Date: unknown
    Title: Waukesha County 2005 Orthophotography, control survey information, digital terrain model files
    Geospatial Data Presentation Form: vector digital data, raster digital data, survey documents
    Publication Information:
    Publication Place: Waukesha, Wisconsin, and other locations
    Publisher: various publishers

    Type of Source Media: aerial photography acquired with a Digital Mapping Camera at a nominal elevation of 5,000 feet; horizontal and vertical control survey data; digital terrain model files
    Source Time Period of Content:
    Time Period Information:
    Single Date/Time:
    Calendar Date: Unknown
    Time of Day: Unknown
    Source Currentness Reference: ground condition
    Source Citation Abbreviation: none
    Source Contribution: The orthophoto files were prepared from aerial photography using digital terrain model files and control survey information.

    Process Step:
    Process Description: Digital aerial photography covering Waukesha County was acquired in the Spring of 2005 by Aero-Metric, Inc., Sheboygan, Wisconsin, working under subcontract to the Southeastern Wisconsin Regional Planning Commission (SEWRPC). The aerial photography was obtained using a Digital Mapping Camera from a nominal elevation of 5,000 feet. The subcontractor also updated to 2005 currency digital terrain model (DTM) files that had been obtained by Waukesha County as part of various topographic mapping projects conducted between 1993 and 2000. The updated DTM files were used to process the aerial photography and prepare color orthophoto files in GeoTIFF format at six-inch pixel resolution covering all of Waukesha County and a small portion of Jefferson County. The image files were reviewed for quality and accuracy by the SEWRPC staff. The GeoTIFF files were then used by the SEWRPC staff to prepare the MrSID format files.
    Process Date: 2005, 2006
    Cloud Cover: 0
    Spatial Data Organization Information
    Direct Spatial Reference Method: raster
    Spatial Reference Information
    Horizontal Coordinate System Definition:
    Geographic:
    Latitude Resolution: 0
    Longitude Resolution: 0
    Geodetic Model:
    Semi-major Axis: 0
    Denominator of Flattening Ratio: 0
    Entity and Attribute Information - Section Index
    Overview Description:
    Entity and Attribute Overview: This data set consists of a set of color orthophoto files covering all of Waukesha County and a portion of eastern Jefferson County immediately adjacent to Waukesha County. The orthophoto images were obtained in Spring 2005 and are available in GeoTIFF format and MrSID format. Each GeoTIFF (Tagged Image File Format) file covers a 5,000 by 5,000 foot area or "tile" on the Wisconsin State Plane Coordinate System, South Zone, NAD 1927. Each image file is approximately 286 megabytes in size. The pixel resolution of the images is six inches on the ground, with zero overlap between adjacent images. The orthophoto files are named according to the Wisconsin State Plane Coordinate System easting coordinate and northing coordinate, in thousands of feet, of the southwest corner of the image. Each image file includes an accompanying ESRI-format "world" file (".tfw" file extension) containing coordinate information used to display and register the image in ESRI software. The entire set of 735 GeoTIFF format files is approximately 205 gigabytes in size.
    The MrSID (Multi-Resolution Seamless Image Database) format files were prepared from the GeoTIFF format files. Each MrSID file covers approximately one of a U.S. Public Land Survey System survey township. Each image file is approximately 640 megabytes in size. The pixel resolution of the images is six inches on the ground, with a minimum of 500 feet of image extending beyond the survey township boundaries. The files are named with the township and range number. Each image file includes an accompanying ESRI-format "world" file (".sdw" file extension) containing coordinate information used to display and register the image in ESRI software. The entire set of 16 MrSID format files is approximately 10 gigabytes in size.
    Entity and Attribute Detail Citation: Information about this data set is contained in a mapping and orthophotography agreement between Waukesha County and the Southeastern Wisconsin Regional Planning Commission.
    Distribution Information
    Distributor:
    Contact Information:
    Contact Person Primary:
    Contact Person: Don Dittmar
    Contact Organization: Waukesha County Land Information Office
    Contact Position: Land Information Systems Coordinator
    Contact Address:
    Address Type: mailing and physical address
    Address: Waukesha County Administration Center, Parks and Land Use Dept. Rm. 260, 515 W Moreland Boulvard City: Waukesha
    State or Province: Wisconsin
    Postal Code: 53188
    Country: United States
    Contact Voice Telephone: 262-896-8270
    Contact Facsimile Telephone: 262-548-7042
    Contact Electronic Mail Address: ddittmar@waukeshacounty.gov
    Hours of Service: 8:00AM - 4:30PM (Central Time)
    Contact Instructions: If Don Dittmar is not available, contact Jim Landwehr at 262-548-7946

    Resource Description: Waukesha County 2005 Contour Line Files
    Distribution Liability: The information and depictions herein are for informational purposes only and Waukesha County specifically disclaims accuracy in this reproduction and specifically admonishes and advises that if specific and precise accuracy is required, the same should be determined by procurement of certified maps, surveys, plats, Flood Insurance Studies, or other official means. Waukesha County will not be responsible for any damages which result from third party use of the information and depictions herein, or for use which ignores this warning.

    Standard Order Process:
    Digital Form:
    Digital Transfer Information:
    Format Name: orthophotos in GeoTIFF format and MrSID format, accompanying "world" (".tfw" or ".sdw" extension) files in ASCII format
    Format Information Content: orthophotos with accompanying reference files
    Transfer Size: 215000
    Digital Transfer Option:
    Offline Option:
    Offline Media: CD-ROM and DVD
    Recording Capacity:
    Recording Density: 640; 4800
    Recording Density Units: approximately 640 megabytes per CD-ROM or 4.8 giga
    Recording Format: ISO 9660 Level 3
    Fees: $50.00 per CD-ROM (Tax is included)
    Ordering Instructions: Written request identifying area. Visit: http://www.waukeshacounty.gov/landandparks/lisd/ for data availability and order form.
    Turnaround: Approximately three working days
    Metadata Reference Information - Section Index
    Metadata Date:
    Metadata Review Date:
    Metadata Future Review Date:
    Metadata Contact:
    Contact Information:
    Contact Person Primary:
    Contact Person: Don Dittmar
    Contact Organization: Waukesha County Land Information Office
    Contact Position: Land Information Systems Coordinator
    Contact Address:
    Address Type: mailing and physical address
    Address: Waukesha County Administration Center, Parks and Land Use Dept. Rm. 260, 515 W Moreland Boulvard City: Waukesha
    State or Province: Wisconsin
    Postal Code: 53188
    Country: United States
    Contact Voice Telephone: 262-896-8270
    Contact Facsimile Telephone: 262-548-7042
    Contact Electronic Mail Address: ddittmar@waukeshacounty.gov
    Hours of Service: 8:00AM - 4:30PM (Central Time)
    Contact Instructions: If Don Dittmar is not available, contact Jim Landwehr at 262-548-7946
    Metadata Standard Name: FGDC Content Standards for Digital Geospatial Metadata
    Metadata Standard Version: FGDC-STD-001-1998
    SMMS Metadata report generated Friday, 03/February/2006