Washington County 1995 Digital Orthophotography

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
Southeastern Wisconsin Regional Planning Commission, GIS Division
Publication_Date: 1995
Title: Washington County 1995 Digital Orthophotography
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Waukesha, Wisconsin
Publisher: Southeastern Wisconsin Regional Planning Commission
Larger_Work_Citation:
Citation_Information:
Originator:
Southeastern Wisconsin Regional Planning Commission, GIS Division
Publication_Date: 1995
Title: SEWRPC 1995 Digital Orthophotography
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: Waukesha, Wisconsin
Publisher: Southeastern Wisconsin Regional Planning Commission
Other_Citation_Details:
The larger project includes orthophotography for the entire southeast region including the counties of Kenosha, Milwaukee, Ozaukee, Racine, Walworth, Washington, and Waukesha. Contact SEWRPC or the County of interest to acquire data for additional counties.
Description:
Abstract:
This data set consists of digital orthophoto images obtained from 1:20,000 scale black-and-white aerial photography acquired in the spring of 1995. Each image nominally covers four U.S. Public Land Survey System sections, for a total of 108 digital image files in the data set. The pixel resolution of the imagery is two feet on the ground. The files are in TIFF format.
Purpose:
This data set was collected to provide an inventory of orthophoto images of Southeastern Wisconsin and to be used for broad regional planning purposes.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1995-04
Currentness_Reference: ground condition at the time of aerial photography (April 1995)
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Regional orthophotography is updated at five-year intervals.
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -88.439
East_Bounding_Coordinate: -88.019
North_Bounding_Coordinate: 43.553
South_Bounding_Coordinate: 43.184
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: orthophotography
Theme_Keyword: aerial photography
Theme_Keyword: image data
Theme_Keyword: raster data
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: Wisconsin
Place_Keyword: Washington County
Place_Keyword: Town of Addison
Place_Keyword: Town of Barton
Place_Keyword: Town of Erin
Place_Keyword: Town of Farmington
Place_Keyword: Town of Germantown
Place_Keyword: Town of Hartford
Place_Keyword: Town of Jackson
Place_Keyword: Town of Kewaskum
Place_Keyword: Town of Polk
Place_Keyword: Town of Trenton
Place_Keyword: Town of Wayne
Place_Keyword: Town of West Bend
Place_Keyword: Village of Jackson
Place_Keyword: Village of Kewaskum
Place_Keyword: Village of Slinger
Place_Keyword: Village of Newburg
Place_Keyword: Village of Germantown
Place_Keyword: Village of Richfield
Place_Keyword: City of Hartford
Place_Keyword: City of West Bend
Access_Constraints:
There are no legal prerequisites for accessing this data set. Potential users should contact the Washington County Planning and Parks Department - GIS Division.
Use_Constraints:
This data is for informational use only and is not intended to be a substitute for a land or engineering survey.

The orthophotography in this data set was acquired in the spring of 1995 and may not reflect current ground conditions.

Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Washington County Geographic Information Systems (GIS), a division of the Planning and Parks Department
Contact_Person: Eric Damkot
Contact_Position: GIS Manager
Contact_Address:
Address_Type: mailing and physical address
Address: 333 E Washington Street, Suite 2300
Address: PO BOX 2003
City: West Bend
State_or_Province: WI
Postal_Code: 53095-2003
Contact_Voice_Telephone: 262-335-4445
Contact_Facsimile_Telephone: 262-335-6868
Contact_Electronic_Mail_Address: eric.damkot@co.washington.wi.us
Hours_of_Service: 8:00 AM to 4:30 PM CST
Data_Set_Credit:
Additional funding for this project provided by the Wisconsin Department of Transportation and the U. S. Department of Transportation, Federal Highway Administration.

Data_Quality_Information:
Logical_Consistency_Report:
This raster data set contains pixels with values that represent relative brightness. Each pixel represents two feet on the ground. The orthophoto images were reviewed for positional accuracy by comparison of the imagery with ground survey control features (section and quarter-section corners of the U.S. Public Land Survey System).
Completeness_Report:
The digital orthophoto images in this data set cover the entirety of Washington County.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
This data set was prepared to meet National Map Accuracy Standards for 1:4800 scale mapping. The resolution of each pixel in the raster files is two feet on the ground. Therefore, ninety percent or more of all clearly-defined planimetric features visible in the imagery are within approximately 15 feet of their true position on the ground.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Aero-Metric, Inc., Ayres Associates, Inc., and the Southeastern Wisconsin Regional Planning Commission
Publication_Date: 1995
Title: 1995 Regional Aerial Photography
Geospatial_Data_Presentation_Form: raster digital data, aerial photography, orthophotography
Publication_Information:
Publication_Place: Madison, Sheboygan, and Waukesha, Wisconsin
Publisher:
Aero-Metric, Inc., Ayres Associates, Inc., and the Southeastern Wisconsin Regional Planning Commission
Source_Scale_Denominator: 20000
Type_of_Source_Media: aerial photography negatives
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 199504
Source_Currentness_Reference: ground condition at date of aerial photography (April 1995)
Source_Citation_Abbreviation: none
Source_Contribution:
The 1995 orthophoto images were obtained by scanning 1:20,000 scale aerial photograph negatives.
Process_Step:
Process_Description:
This data set was prepared from aerial photography taken in April 1995. The aerial photo negatives were scanned and the resulting files were processed to prepare digital orthophoto images.
Process_Date: 1995

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: raster
Raster_Object_Information:
Raster_Object_Type: pixel

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1927
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 4803
Lambert_Conformal_Conic:
Standard_Parallel: 42.733300
Standard_Parallel: 44.066700
Longitude_of_Central_Meridian: -90.00
Latitude_of_Projection_Origin: 42.00
False_Easting: 2000000.000000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.0001
Ordinate_Resolution: 0.0001
Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.400000
Denominator_of_Flattening_Ratio: 294.980000

Entity_and_Attribute_Information:
Overview_Description:
Entity_and_Attribute_Overview:
This data set consists of a set of 108 black-and-white orthophoto images, with each image covering four U.S. Public Land Survey System sections. Each digital raster image file is approximately 32 megabytes in size, and is formatted in standard "TIFF" tagged image file format. The pixel resolution of the images is two feet on the ground. The orthophoto files are named according to the U.S. Public Land Survey System township, range, and four-section area covered by the image. In addition, a number of ancillary digital files are available that complement the orthophoto image files. These include: 1) a generic ASCII-format text file containing the State Plane coordinates of the extent of the image (".bnd" file extension); 2) an ESRI-format world file containing the coordinate information used to display and register the image in ESRI software (".tfw" file extension); 3) a symbolized vector and text file containing U.S. Public Land Survey System section and quarter-section corners and lines and map legend and title information in MicroStation format (".dgn" file extension); and 4) a text resource file containing font information for display of the vector and text file in MicroStation format ("SEW.rsc" file name).
Entity_and_Attribute_Detail_Citation:
Additional information about the orthophoto images and ancillary files is contained in the one-page document entitled "Digital Orthophoto File Naming Convention" available from the Southeastern Wisconsin Regional Planning Commission GIS Division.

Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Washington County Geographic Information Systems (GIS), a division of the Planning and Parks Department
Contact_Person: Eric Damkot
Contact_Position: GIS Manager
Contact_Address:
Address_Type: mailing and physical address
Address: 333 E Washington Street, Suite 2300
Address: PO BOX 2003
City: West Bend
State_or_Province: WI
Postal_Code: 53095-2003
Contact_Voice_Telephone: 262-335-4445
Contact_Facsimile_Telephone: 262-335-6868
Contact_Electronic_Mail_Address: eric.damkot@co.washington.wi.us
Hours_of_Service: 8:00 AM to 4:30 PM CST
Resource_Description: Washington County 1995 Orthophotography
Distribution_Liability:
This digital data set was created for use by the Southeastern Wisconsin Regional Planning Commission for regional planning purposes. Any other use/application of this information is the responsibility of the user and such use/application is at the user's own discretion and risk. The Southeastern Wisconsin Regional Planning Commission disclaims all liability regarding fitness of the information for any use other than Commission applications.

This information is subject to errors and omissions and is not certified by Washington County.

Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: "TIFF" Tagged Image File Format
Format_Information_Content: Digital Image
Digital_Transfer_Option:
Offline_Option:
Offline_Media: CD-ROM
Recording_Capacity:
Recording_Density: 700
Recording_Density_Units: MB
Recording_Format: ISO 9660
Offline_Option:
Offline_Media: DVD-ROM
Recording_Capacity:
Recording_Density: 4.7
Recording_Density_Units: GB
Recording_Format: ISO 9660
Fees:
1995 Orthophotography is sold by the U. S. Public Land Survey System Township. Any two townships of black and white orthophotography can be obtained on CD-ROM for $75 (includes tax and delivery fees). Alternatively, the entire county (12 townships) is available on a DVD-ROM for $200 (includes tax and delivery fees). Fees are generally waived for all local, regional, state, and federal governments. At the discretion of Washington County Department/Division heads, fees can be waived for individuals or groups doing business with Washington County.
Ordering_Instructions:
Order by mail, e-mail, phone, or in person. Payment must be received before data will be shipped. See the GIS data and fees page at <http://www.co.washington.wi.us/gis> for additional information.
Turnaround: Typically within one week.

Metadata_Reference_Information:
Metadata_Date: 20110114
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
Washington County Geographic Information Systems (GIS), a division of the Planning and Parks Department
Contact_Person: Eric Damkot
Contact_Position: GIS Manager
Contact_Address:
Address_Type: mailing and physical address
Address: 333 E Washington Street, Suite 2300
Address: PO BOX 2003
City: West Bend
State_or_Province: WI
Postal_Code: 53095-2003
Contact_Voice_Telephone: 262-335-4445
Contact_Facsimile_Telephone: 262-335-6868
Contact_Electronic_Mail_Address: eric.damkot@co.washington.wi.us
Hours_of_Service: 8:00 AM to 4:30 PM CST
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

Generated by mp version 2.7.10 on Fri Jan 14 09:26:33 2011