VEG1851_V5 Metadata also available as - [Questions & Answers] - [Parseable text] Metadata: * Identification_Information * Data_Quality_Information * Spatial_Data_Organization_Information * Spatial_Reference_Information * Entity_and_Attribute_Information * Distribution_Information * Metadata_Reference_Information ------------------------------------------------------------------------ Identification_Information: Citation: Citation_Information: Originator: Stan Gregory, Oregon State University Publication_Date: 20000928 Title: VEG1851_V5 Edition: v. 5 Geospatial_Data_Presentation_Form: Map Publication_Information: Publication_Place: Corvallis, OR Publisher: Pacific Northwest Ecosystem Research Consortium Other_Citation_Details: Version 5 replaces Version 4, which was released April 2000. Larger_Work_Citation: Citation_Information: Originator: Pacific Northwest Ecosystem Research Consortium Publication_Date: 20000928 Publication_Information: Publication_Place: Publisher: Other_Citation_Details: This coverage was created as part of the research undertaken by the Pacific Northwest Ecosystem Research Consortium () funded by the U.S. Environmental Protection Agency under cooperative agreement with Oregon State University #CR824682. Online_Linkage: Description: Abstract: This polygon coverage depicts "presettlement" vegetation in Oregon as described by surveyors for the General Land Office between 1851 and 1909, when surveying township and section lines. Most low-elevation sites with arable land were surveyed between 1851 and 1865, while most foothill and mountainous areas were surveyed between 1865 and 1895. Coverage currently includes the entire Willamette Valley and surrounding foothills, most of the tributary valleys of the McKenzie, Tualatin, and Yamhill rivers. The project, initiated in 1993, has to date been funded by the Oregon Division of State Lands, the Bureau of Land Management, the Environmental Protection Agency, the Army Corps of Engineers, the Bonneville Power Administration, the Oregon Community Foundation, The Nature Conservancy, and the City of Portland. The Principal Investigator is John A. Christy (Oregon Natural Heritage Program, The Nature Conservancy of Oregon), with GIS management by Linda Ashkenas, Paula Minear, and Doug Oetter (Oregon State University). Purpose: The coverage was created to identify the types of vegetation present and to quantify their extent at the time of survey. In most cases, Vegetation present at the time of survey is a close approximation of vegetation prior to widespread changes wrought by Euroamerican settlement. Supplemental_Information: Coverage was created at 1:24,000 using databased transcriptions of survey notes for township and section lines, with standard USGS 7.5 topographic maps as a base. When resurveys offered more than one data set for a given line, data from the earliest survey were used whenever possible. Survey data for meander lines deviating from section lines, and for Donation Land Claim boundaries, were not used in this study. Vegetation types were defined by descriptors used in the survey notes, supplemented when needed by distances to witness trees as recorded in the notes. Coverage was delineated using distances recorded as points along the survey lines. Vegetation in the interiors of sections was delineated using features depicted on the surveyor's township plat maps, historic air photos, modern soil maps, and best professional judgement based on topographic features. Mylars were digitized by hand early in the project, and later scanned directly into ArcInfo using the ArcScan module. Once in ArcInfo the polygon coverage was built or cleaned with a fuzzy tolerance of 1 meter and polygons were attributed with the veg abbreviation. Edgematching and elimination of sliver polygons was done by hand to avoid losing tiny polygons that were necessary to the coverage (gravel bars, etc.). Department of Corrections, Division of State Lands, and Oregon State University (Department of Fisheries and Wildlife) have all assisted with digitizing of these topo quads. The final editing was performed at TNC by John Christy and John Hak. Zipped versions of the shapefiles were transferred to OSU, where Doug Oetter converted them to ARC/INFO vector coverages, and performed subsequent edits. Version 1 appeared in the Willamette Valley Atlas version 1. Version 1.1 was completed in January, 1999. Version 2, which added significant areas to the coverage and separated wet from dry prairie, was completed December, 1999. Version 3 (January 2000) featured updates to water features and wetlands. Version 4 (April 2000) edited out unlabled polygons from v.3. Version 5 (September 2000) added new data from the Sauvie Island area. This coverage has topology, as evidenced by build process, and was cross-checked by GIS technicians at OSU, FSL, and State Corrections. Plots were checked and edited by John Christy, The Nature Conservancy, and Ed Alverson, Oregon Natural Heritage Program. A section line coverage, prepared by Atterbury & Assoc., was used as the grid for placement of survey notations along section lines. It is available from the Oregon State Service Center for GIS. For proper interpretation of vegetation communities identified in this coverage, refer to the associated Word document, veg1851_v5.doc. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1851 Ending_Date: 1895 Currentness_Reference: This version (v.5) is current as of September 28, 2000. Status: Progress: Version 5 Maintenance_and_Update_Frequency: Further additions or edits may occur on an irregular basis. Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -123.73826375 East_Bounding_Coordinate: -122.36342355 North_Bounding_Coordinate: 45.86510912 South_Bounding_Coordinate: 43.43544498 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Willamette Valley, Oregon Theme_Keyword: Historic vegetation Theme_Keyword: Pre-settlement natural vegetation Theme_Keyword: The Nature Conservancy Place: Place_Keyword_Thesaurus: None Place_Keyword: Willamette Valley, Oregon Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: Pre-European Settlement Access_Constraints: This coverage will be edited by Nature Conservancy botanists and revised further as mapping proceeds. DO NOT COPY OR CITE THIS VERSION WITHOUT FIRST CONTACTING THE PRINCIPAL INVESTIGATOR, JOHN A. CHRISTY [OREGON NATURAL HERITAGE PROGRAM, 503.731.3070 x342]. Use_Constraints: Data along section lines are generally accurate, although some survey lines were abandoned after subsequent resurveys. Vegetation in the interiors of sections was delineated using secondary sources, and these coverages will not meet current map standards. Surveyors township plat maps, while accurately depicting points along survey lines, provide only sketches of features in the interiors of sections, and do not meet map standards. The same holds true for modern soil maps, which depict approximate boundaries of given soil types, based on limited sampling and interpretation of topography. We estimate map accuracy of position be within 10 meters along section lines, if section corners are the same as at the time of survey, and 100-300 meters in the interiors of sections, depending on topographic features. Data_Set_Credit: Data should be credited to: John A. Christy, Edward R. Alverson, Molly P. Dougherty and Susan C. Kolar, Oregon Natural Heritage Program, The Nature Conservancy of Oregon. GIS processes should be credited to Oregon State University Department of Fisheries and Wildlife, Oregon Department of Corrections, and Oregon Division of State Lands. Security_Information: Security_Classification_System: None Security_Classification: UNCLASSIFIED Security_Handling_Description: None Native_Data_Set_Environment: SunOS UNIX, ARC/INFO version 7.2.1 Vector Cross_Reference: Citation_Information: Originator: General Land Office Publication_Date: 1851 -- 1895 Publication_Time: Title: Land Surveys Edition: Geospatial_Data_Presentation_Form: platt maps, notes Series_Information: Series_Name: Issue_Identification: Publication_Information: Publication_Place: Publisher: Other_Citation_Details: Online_Linkage: Larger_Work_Citation: ------------------------------------------------------------------------ Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: See related document veg1851_v5.doc Logical_Consistency_Report: Polygon topology is present. Completeness_Report: Data set is complete. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Unknown. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Unknown. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: The Nature Conservancy of Oregon Oregon Natural Heritage Program Publication_Date: 20000919 Title: Historic ("Presettlement") Vegetation in Oregon as Recorded by General Land Office Surveyors. Edition: v.5 Geospatial_Data_Presentation_Form: map Publication_Information: Publication_Place: Portland, OR Publisher: The Nature Conservancy of Oregon Source_Scale_Denominator: unknown Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 18510000 Ending_Date: 19090000 Source_Currentness_Reference: publication date Source_Contribution: The Nature Conservancy of Oregon constructed a pre-settlement land cover map for the Willamette Valley by interpretting the survey notes of the General Land Office taken over a period from 1851-1909. Process_Step: Process_Description: Coverage was created at 1:24,000 using databased transcriptions of survey notes for township and section lines, with standard USGS 7.5 topographic maps as a base. When resurveys offered more than one data set for a given line, data from the earliest survey were used whenever possible. Survey data for meander lines deviating from section lines, and for Donation Land Claim boundaries, were not used in this study. Vegetation types were defined by descriptors used in the survey notes, supplemented when needed by distances to witness trees as recorded in the notes. Coverage was delineated using distances recorded as points along the survey lines. Vegetation in the interiors of sections was delineated using features depicted on the surveyor's township plat maps, historic air photos, modern soil maps, and best professional judgement based on topographic features. Mylars were digitized by hand early in the project, and later scanned directly into ArcInfo using the ArcScan module. Once in ArcInfo the polygon coverage was built or cleaned with a fuzzy tolerance of 1 meter and polygons were attributed with the veg abbreviation. Edgematching and elimination of sliver polygons was done by hand to avoid losing tiny polygons that were necessary to the coverage (gravel bars, etc.) Department of Corrections, Division of State Lands, and Oregon State University (Department of Fisheries and Wildlife) have all assisted with digitizing of these topo quads. The final editing was performed at TNC by John Christy and John Hak. Zipped versions of the shapefiles were transferred to OSU, where Doug Oetter converted them to ARC/INFO vector coverages, and performed subsequent edits. Process_Date: 20000928 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Doug Oetter Contact_Organization: Oregon State University Contact_Position: Faculty Research Assistant Contact_Address: Address_Type: mailing and physical address Address: Dept. of Forest Science 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: oetter@fsl.orst.edu Cloud_Cover: ------------------------------------------------------------------------ Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 14339 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 33692 SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains Point_and_Vector_Object_Count: 14340 ------------------------------------------------------------------------ Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 10 Planar_Coordinate_Information: Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening: 294.98 ------------------------------------------------------------------------ Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: veg1851_v5.pat Entity_Type_Definition: Polygon Attribute Table Entity_Type_Definition_Source: None Attribute: Attribute_Label: VEGABB Attribute_Definition: Vegetation class label code Attribute_Definition_Source: User Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value_Definition: See related document veg1851_v5.doc Enumerated_Domain_Value_Definition_Source: User-defined Attribute_Label: TNC_GROUP Attribute_Definition: Vegetation group label Attribute_Definition_Source: User Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value_Definition: Based on value of VEGABB Enumerated_Domain_Value_Definition_Source: User-defined Attribute_Label: VEGTEXT1 Attribute_Definition: Vegetation class brief description 1 Attribute_Definition_Source: User Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value_Definition: See related document veg1851_v5.doc Enumerated_Domain_Value_Definition_Source: User-defined Attribute_Label: VEGTEXT2 Attribute_Definition: Vegetation class brief description 2 Attribute_Definition_Source: User Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value_Definition: See related document veg1851_v5.doc Enumerated_Domain_Value_Definition_Source: User-defined Attribute_Label: VEGTEXT3 Attribute_Definition: Vegetation class brief description 3 Attribute_Definition_Source: User Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value_Definition: See related document veg1851_v5.doc Enumerated_Domain_Value_Definition_Source: User-defined Attribute_Label: SYMBOL Attribute_Definition: Map color shade symbol for use with colornames.shd Attribute_Definition_Source: User Defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value_Definition_Source: User-defined Enumerated_Domain: Enumerated_Domain_Value: 10 Enumerated_Domain_Value_Definition: blanched almond Enumerated_Domain: Enumerated_Domain_Value: 25 Enumerated_Domain_Value_Definition: misty rose Enumerated_Domain: Enumerated_Domain_Value: 45 Enumerated_Domain_Value_Definition: deep skyblue Enumerated_Domain: Enumerated_Domain_Value: 61 Enumerated_Domain_Value_Definition: dark green Enumerated_Domain: Enumerated_Domain_Value: 75 Enumerated_Domain_Value_Definition: yellow green Enumerated_Domain: Enumerated_Domain_Value: 77 Enumerated_Domain_Value_Definition: olive drab Enumerated_Domain: Enumerated_Domain_Value: 86 Enumerated_Domain_Value_Definition: goldenrod Enumerated_Domain: Enumerated_Domain_Value: 97 Enumerated_Domain_Value_Definition: tan Enumerated_Domain: Enumerated_Domain_Value: 99 Enumerated_Domain_Value_Definition: firebrick Overview_Description: Entity_and_Attribute_Overview: Codes have been assigned to designate each unique type of vegetation community, as delineated by VEGABB attribute in the .pat of this coverage. A complete listing and description of each category is included in the related document veg1851_v5.doc. The 84 unique VEGABB codes have been collapsed into 10 TNC_GROUP codes. A brief description of the plant communities is contained in the attributes VEGTEXT1, VEGTEXT2, and VEGTEXT3. The attribute SYMBOL is a map shading code which relates to the the ARC/INFO shadeset colornames.shd. SYMBOL is based on the designations in TNC_GROUP. ------------------------------------------------------------------------ Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Oregon State University Contact_Person: Doug Oetter Contact_Position: Faculty Research Assistant Contact_Address: Address_Type: mailing and physical address Address: Dept. of Forest Science 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: oetter@fsl.orst.edu Resource_Description: VEG1851_V5 Distribution_Liability: While strong efforts are made to ensure data set accuracy, complete accuracy of every data set cannot be guaranteed. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: Compressed archived ARC/Info workspace File_Decompression_Technique: gzip or WinZip Transfer_Size: 2.7 Mb Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: Access_Instructions: anonymous ftp Fees: none ------------------------------------------------------------------------ Metadata_Reference_Information: Metadata_Date: 20000928 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Doug Oetter Contact_Organization: Oregon State University Contact_Position: Faculty Research Assistant Contact_Address: Address_Type: mailing and physical address Address: Dept. of Forest Science 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: oetter@fsl.orst.edu Metadata_Standard_Name: FGDC CSDGM Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time ------------------------------------------------------------------------ Generated by mp version 2.4.35 on Thu Sep 28 20:43:12 2000