Identification_Information: Citation: Citation_Information: Originator: William H. Schulz Publication_Date: 2005 Title: denuded Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: U.S. Geological Survey Open-File Report Issue_Identification: Open File Report 2005-1405 Publication_Information: Publication_Place: Denver, Colorado Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2005/1405/ Description: Abstract: Landforms in Seattle, Washington, that were created primarily by landsliding were mapped using LIDAR-derived imagery. These landforms include landslides (primarily landslide complexes), headscarps, and denuded slopes. Over 93 percent of about 1,300 reported historical landslides are located within the LIDAR-mapped landform boundaries. The spatial densities of reported historical landslides within the LIDAR-mapped landforms provide the relative susceptibilities of the landforms to past landslide activity. Because the landforms were primarily created by prehistoric landslides, the spatial densities also provide reasonable estimates of future landslide susceptibility. The mapped landforms and susceptibilities provide useful tools for landslide hazard reduction in Seattle. Purpose: This shapefile defines the denuded slope landform for which relative susceptibilities to future landslides have been estimated. It is intended to be used for evaluations of general areas in which landslides are anticipated. It is not intended to replace site-specific engineering geologic and geotechnical investigations. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20041215 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.433415 East_Bounding_Coordinate: -122.235912 North_Bounding_Coordinate: 47.735884 South_Bounding_Coordinate: 47.493419 Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: landslide Place: Place_Keyword_Thesaurus: none Place_Keyword: Seattle, Washington Access_Constraints: none Use_Constraints: This shapefile and related report provide general estimates of future landslide occurrence in Seattle, but are not intended to replace site-specific engineering geolgic and geotechnical investigations. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: William H. Schulz Contact_Organization: U.S. Geological Survey Contact_Position: Research Geologist Contact_Address: Address_Type: mailing address Address: Box 25046, MS-966 City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: (303) 273-8404 Contact_Facsimile_Telephone: (303) 273-8600 Contact_Electronic_Mail_Address: wschulz@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2005/1405/plate1.pdf Browse_Graphic_File_Description: graphical representation of plate 1 Browse_Graphic_File_Type: PDF Security_Information: Security_Classification: Unclassified Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 Data_Quality_Information: Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Location accuracy of the mapped features varied due to accuracy of the base LIDAR data, strength of morphologic features, and scale at which the features were mapped. Therefore, it is not possible to assign a global accuracy level. Lineage: Process_Step: Process_Description: Landslides, headscarps, and denuded slopes were mapped directly in ArcInfo while viewing imagery derived from the LIDAR data, such as hillshades, slope maps, topographic maps, and topographic profiles. Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-polygon Point_and_Vector_Object_Count: 231 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Lambert Conformal Conic Lambert_Conformal_Conic: Standard_Parallel: 47.500000 Standard_Parallel: 48.733333 Longitude_of_Central_Meridian: -120.833333 Latitude_of_Projection_Origin: 47.000000 False_Easting: 1640416.666667 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000128 Ordinate_Resolution: 0.000128 Planar_Distance_Units: survey feet Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: denuded Attribute: Attribute_Label: FID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. Attribute: Attribute_Label: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: ID Distribution_Information: Resource_Description: Downloadable Data Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Transfer_Size: 0.238 Metadata_Reference_Information: Metadata_Date: 20051025 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: William H. Schulz Contact_Position: Research Geologist Contact_Address: Address_Type: mailing address Address: Box 25046, MS 966 City: Denver State_or_Province: CO Postal_Code: 80225 Country: USA Contact_Voice_Telephone: (303) 273-8404 Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile