Des Plaines Watershed, IL/WI - TerraSource Orthorectified Imagery

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: ImageAmerica

Publication_Date: 20001002

Title:

Des Plaines Watershed, IL/WI - TerraSource Orthorectified Imagery

Geospatial_Data_Presentation_Form: Remote-sensing image

Series_Information:

Series_Name: ISGS GIS Database

Issue_Identification: /<filename>

Description:

Abstract:

Note: The original metadata file was written by ImageAmerica. The only entries by ISGS are those required for archival and access in the Survey's formal GIS, and Spatial_Data_Organization_Information, and Spatial_Reference_Information.

The Des Plaines images are one-foot resolution digital images which have been ortho-rectified to accuracy criteria required for use of the images at 1'=200' (1:2,400 scale). These black and white images cover approximately 450 square miles of the Des Plaines Watershed in southeastern Wisconsin and northeastern Illinois and were acquired during leaf-off vegetative conditions. The complete set of images and project index are distributed on 28 CDs. [ISGS note: and internally at ISGS and on the Illinois Natural Resources Geospatial Data Clearinghouse.]

Supplemental_Information:

Each set of CD's consists of image files (27 CDs) and an ArcView project index (1 CD). Most image CDs contain 10 image files. Each file is formatted in standard geotiff format. Tile boundaries and internal image pixels are oriented to the IL State Plane, East coordinate system. [ISGS note: NAD83] The extent of most image tiles is 8000 x 8000 US Survey feet. Image file names correspond to the State Plane coordinates of the southwest corner of the tile. These datasets have been validated for completeness and accuracy by the USGS. A test of the ortho-image positions against 29 ground check points produced RMSEs within the x and y tolerances of 3.1-feet (maximum RMSE for use at 1:2400 scale û 1"=200'). Final RMSE x = 2.67 feet. Final RMSE y = 2.08 feet.

Purpose:

These ortho-images were created as a base for determining flood risk.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20000325

Ending_Date: 20000326

Currentness_Reference: ground condition

Status:

Progress: complete

Maintenance_and_Update_Frequency: unknown

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -088.17

East_Bounding_Coordinate: -087.75

North_Bounding_Coordinate: 42.75

South_Bounding_Coordinate: 41.80

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: digital orthophoto

Theme_Keyword: ortho-imagery

Theme_Keyword: ortho image

Theme_Keyword: ortho-images

Theme_Keyword: TerraSource

Theme_Keyword: Terra Source

Theme_Keyword: digital image

Theme_Keyword: digital imagery

Theme_Keyword: digital photography

Theme_Keyword: digital photographs

Access_Constraints: None

Use_Constraints:

None. Acknowledgement of ImageAmerica would be appreciated in products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Kallen Bailey

Contact_Organization: ImageAmerica

Contact_Address:

Address_Type: mailing and physical address

Address: 18445 Edison Ave.

City: Chesterfield

State_or_Province: MO

Postal_Code: 63005

Country: USA

Contact_Voice_Telephone: 636-530-1901

Contact_Facsimile_Telephone: unknown

Contact_Electronic_Mail_Address: kbailey@image-america.com

Data_Quality_Information:

Logical_Consistency_Report: N/A

Completeness_Report: N/A

Lineage:

Process_Step:

Process_Description:

Panoramic digital images were acquired from 17,500 feet above mean terrain using the Direct Digital Panoramic (DDP-1) camera. Onboard GPS and inertial navigation system data were used to derive camera position and attitude during data processing. Preprocessing, bore-site adjustment, and ortho-rectification were performed on the full project using automated processing in SocketSet photogrammetric software and proprietary software. Radiometric adjustments were applied to reduce brightness variations between images and to enhance image contrast.

Process_Date: 20001002

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: varies

Column_Count: varies

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: State Plane Coordinate System 1983

State_Plane_Coordinate_System:

SPCS_Zone_Identifier: 3776

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: .999975

Longitude_of_Central_Meridian: -88.3333333334

Latitude_of_Projection_Origin: 36.6666666667

False_Easting: 984249.998999999

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 1

Ordinate_Resolution: 1

Planar_Distance_Units: feet

Geodetic_Model:

Horizontal_Datum_Name: North American Datum 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137

Denominator_of_Flattening_Ratio: 298.257

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Illinois State Geological Survey

Contact_Position: Information Office

Contact_Address:

Address_Type: mailing and physical address

Address: 615 East Peabody Drive

City: Champaign

State_or_Province: Illinois

Postal_Code: 61820

Country: USA

Contact_Voice_Telephone: 217-333-4747

Contact_TDD/TTY_Telephone: 217-785-0211

Contact_Facsimile_Telephone: 217-244-0802

Contact_Electronic_Mail_Address: isgs@isgs.uiuc.edu

Hours_of_Service: 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time

Distribution_Liability:

The Illinois Department of Natural Resources (DNR) provides these geographic data "as is." DNR makes no guarantee or warranty concerning the accuracy of information contained in the geographic data. DNR further makes no warranties, either expressed or implied as to any other matter whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. Although these data have been processed successfully on computers of DNR, no warranty, expressed or implied, is made by DNR regarding the use of these data on any other system, nor does the fact of distribution constitute or imply any such warranty.

In no event shall the DNR have any liability whatsoever for payment of any consequential, incidental, indirect, special, or tort damages of any kind, including, but not limited to, any loss of profits arising out of use of or reliance on the geographic data or arising out of the delivery, installation, operation, or support by DNR.

Metadata_Reference_Information:

Metadata_Date: 20010328

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: ImageAmerica

Contact_Address:

Address_Type: mailing and physical address

Address: 18445 Edison Ave.

City: Chesterfield

State_or_Province: MO

Postal_Code: 63005

Contact_Voice_Telephone: 636-530-1901

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Illinois Natural Resources Geospatial Data Clearinghouse