WRG_POLY

Metadata:
Identification_Information:
Citation:
Citation_Information:
Originator: Doug R. Oetter
Publication_Date: Unpublished Material
Title: wrg_poly
Geospatial_Data_Presentation_Form: vector digital data
Online_Linkage:
Description:
Abstract:
This vector coverage maps the Willamette River Greenway as portrayed in the July, 1976 proposal developed by the Oregon State Parks and Recreation Branch of the Department of Transportation. The greenway boundary was digitized from the black line drawing in the four photo books, sometimes corrected with USGS Digital Raster Graphs (topographic quads). County and city boundaries from the Oregon State Service Center for GIS were added to the coverage for jurisdictional identification purposes. The coverage was developed by Doug Oetter, Department of Geography, Oregon State University, in 2001.
Purpose:
This coverage outlines the Willamette River Greenway as proposed in 1976. It is a useful reference for lands included in Oregon Statewide Planning Goal #15, but has not been modified to reflect changes in the greenway boundary made since 1976. This coverage should not be used for legal definitions of the greenway boundary.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19760701
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -123.269626
East_Bounding_Coordinate: -122.595981
North_Bounding_Coordinate: 45.856634
South_Bounding_Coordinate: 43.715376
Keywords:
Theme:
Theme_Keyword: Willamette River Greenway
Theme_Keyword: Willamette River, Oregon
Place:
Place_Keyword: Oregon
Access_Constraints: None.
Use_Constraints:
This coverage was hand-digitized from aerial photographs in the 1976 Willamette River Greenway proposal books, and as such should not be considered an authorized or accurate representation of the current boundary of the greenway. It should not be used for legal or technical definitions of the greenway.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Doug R. Oetter
Contact_Organization: Oregon State University
Contact_Position: Graduate Researcher
Contact_Address:
Address_Type: mailing and physical address
Address: Department of Geosciences- Oregon State University
City: Corvallis
State_or_Province: OR
Postal_Code: 97331
Country: USA
Contact_Voice_Telephone: 541-737-8417
Contact_Facsimile_Telephone: 541-758-7760
Contact_Electronic_Mail_Address: oetterd@geo.orst.edu
Security_Information:
Security_Classification: Unclassified
Native_Data_Set_Environment: UNIX ArcINFO 8.0
Cross_Reference:
Citation_Information:
Originator:
Oregon State Parks and Recreation Branch, Department of Transportation
Publication_Date: 19760701
Title: A Proposal for The Willamette River Greenway
Geospatial_Data_Presentation_Form: document
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Attributes were derived from the Oregon State Service Center for GIS county and city coverages.
Logical_Consistency_Report: Polygon topology exists.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The greenway boundary was screen digitized at a scale of ~1:4000 and should not be considered accurate within 25 meters on average.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator:
Oregon State Parks and Recreation Branch, Oregon Department of Transportation
Publication_Date: 19760701
Title: A Proposal for the Willamette River Greenway
Geospatial_Data_Presentation_Form: document
Source_Scale_Denominator: 4000
Type_of_Source_Media: paper
Source_Citation_Abbreviation: OSPR
Source_Contribution:
The greenway boundary as proposed in 1976 is drawn in black line over c. 1973 aerial photographs.
Process_Step:
Process_Description:
The greenway boundary was hand-digitized on screen at a display scale of 1:4000 from the photo sheets in the four OSPR books. The source photography for the digitizing environment was 1995 digital orthophotographs prepared by Spencer Gross Inc. for the US Army Corps of Engineers-Portland District and others. In some cases where the river had shifted course dramaticallly, and the reference features on the 1995 orthophotographs were obscured or missing, the photo page for that section of the river was scanned, geo-registered using available ground control points, and the greenway boundary was digitized from that. The process was completed in four stages, one for each photo book, and then appended to form one coverage. County lines and city limits were added in from the Oregon State Service Center for GIS coverages. Preliminary coverages were received from the Benton County and Lane County planning agencies; these were subsequently edited to match the screen digitizing procedure standards developed in the other counties.
Source_Used_Citation_Abbreviation: OSPR
Process_Date: 20010401
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Doug R. Oetter
Contact_Organization: Department of Geosciences- Oregon State University
Contact_Position: Graduate Researcher
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Complete chain
Point_and_Vector_Object_Count: 398
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Label point
Point_and_Vector_Object_Count: 59
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains
Point_and_Vector_Object_Count: 59
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 4
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 10
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.999600
Longitude_of_Central_Meridian: -123.000000
Latitude_of_Projection_Origin: 0.000000
False_Easting: 500000.000000
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.000512
Ordinate_Resolution: 0.000512
Planar_Distance_Units: meters
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1927
Ellipsoid_Name: Clarke 1866
Semi-major_Axis: 6378206.400000
Denominator_of_Flattening_Ratio: 294.978698
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: wrg_poly.pat
Entity_Type_Definition: Polygon attribute table
Attribute:
Attribute_Label: COUNTY
Attribute_Definition: County name.
Attribute_Definition_Source: Identity coverage.
Attribute_Domain_Values:
Unrepresentable_Domain: County names.
Attribute:
Attribute_Label: CITY
Attribute_Definition: City limit name.
Attribute_Definition_Source: Identity coverage.
Attribute_Domain_Values:
Unrepresentable_Domain: City names; blanks indicate polygons outside of any city.
Entity_and_Attribute_Overview:
County and city names are attributed for each polygon. Polygons outside of any city limits are unattributed.
Entity_and_Attribute_Detail_Citation:
County and city boundaries were digitized from USGS Digitial Raster Graphs and came from the Oregon State Service Center for GIS county and city boundary coverages.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Doug R. Oetter
Contact_Organization: Department of Geosciences, Oregon State University
Contact_Position: Graduate Researcher
Contact_Address:
Address_Type: mailing and physical address
Address: Department of Geosciences, Oregon State University
City: Corvallis
State_or_Province: OR
Postal_Code: 97331
Country: USA
Contact_Voice_Telephone: 541-737-8417
Contact_Facsimile_Telephone: 541-758-7760
Contact_Electronic_Mail_Address: oetterd@geo.orst.edu
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ARCE
File_Decompression_Technique: Gzip
Transfer_Size: 0.287
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: WRG_POLY
Access_Instructions: ftp
Online_Computer_and_Operating_System: <ftp://ftp.fsl.orst.edu/pub/pnwerc/river/wrg_poly.e00.gz>
Metadata_Reference_Information:
Metadata_Date: 20010504
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: Department of Geosciences, Oregon State University
Contact_Person: Doug R. Oetter
Contact_Position: Graduate Researcher
Contact_Address:
Address_Type: mailing and physical address
Address: Department of Geosciences, Oregon State University
City: Corvallis
State_or_Province: OR
Postal_Code: 97331
Country: USA
Contact_Voice_Telephone: 541-737-8417
Contact_Facsimile_Telephone: 541-758-7760
Contact_Electronic_Mail_Address: oetterd@geo.orst.edu
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Generated by mp version 2.6.1 on Fri May 04 12:31:36 2001