Landslide Hazards along River Corridors - Landslide body (where debris from a slide has been deposited)

Metadata:

• Identification_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: King County

Publication_Date: 20160816

Title:

Landslide Hazards along River Corridors - Landslide body (where debris from a slide has been deposited)

Edition: One

Geospatial_Data_Presentation_Form: vector digital data

Publication_Information:

Publication_Place: King County, WA

Publisher: King County

Other_Citation_Details: None

Online_Linkage: <http://www5.kingcounty.gov/gisdataportal/Default.aspx>

Description:

Abstract:

Where fluvial or coastal erosion has created steep, high slopes in glacial sediments, these slopes sometimes fail in large, deep-seated landslides. The segregation of landslides into deep and shallow is somewhat arbitrary and different investigators have used different criteria to differentiate these landslides. For this project, the differentiation follows the criteria proposed by Burns and Madin (2009) that deep-seated slides extend to a depth of more than 15 ft. (4.6 m.). In general this corresponds to individual landslides which are large enough to be distinct on hillshade images generated from LiDAR data. For this mapping, deep-seated landslides may include features where the failure plane is more than 15 ft. deep or where landslide debris accumulates to a depth of more than 15 ft. In King County, a variety of landslide types occur at a scale that may create deep-seated landslides.

Purpose:

Suitable for general reference and analyses. Identifies only the landslide body (where debris from a slide has been deposited) identified on deep seated landslides mapped within the river corridor study limits in King County.

Supplemental_Information:

King County retained Shannon & Wilson to map deep-seated landslides within the study limits using the procedure in the Oregon State Department of Geology and Mineral Industries (OR DOGAMI) Special Paper 42 (Burns and Madin 2009). Shannon and Wilson mapped 930 deep-seated landslides in the study area during this work. A report prepared by Shannon & Wilson to accompany their mapping is included as Appendix A of the report. Many features of deep-seated landslides share similar topographic characteristics including steep, often arcuate head scarps defining the upslope limit of the slide and a distinct deposit of displaced debris downslope. The debris was often identifiable by its lobate form and hummocky upper surface. These features varied in their topographic distinctness from features that appeared sharp and unambiguous to features that were muted and subtle. It is likely that some features mapped as slides based on their topographic character may have formed in other ways and it is also likely that some prehistoric deep-seated landslides present in the study limits were not identified because they were not distinguishable with the available imaging. A numerical confidence rating method set by the DOGAMI method (e.g., headscarp and slide morphology) was used to assign ratings to each mapped landslide. Twenty attributes, i.e. relative age of landslide, LiDAR source and date, and whether the slide appeared natural or human modified, of each landslide, were documented.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20160620

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -122.300879

East_Bounding_Coordinate: -121.231219

North_Bounding_Coordinate: 47.780766

South_Bounding_Coordinate: 47.134577

Keywords:

Theme:

Theme_Keyword_Thesaurus: Not applicable

Theme_Keyword: enviro

Theme_Keyword: Pacific NW

Theme_Keyword: King County WA

Theme_Keyword: Washington state

Theme_Keyword: landslide

Theme_Keyword: slide

Theme_Keyword: mass movement

Theme_Keyword: landslide hazard mapping

Theme_Keyword: debris slides

Theme_Keyword: shallow landslides

Theme_Keyword: shallow landsliding

Theme_Keyword: debris sliding

Place:

Place_Keyword_Thesaurus: Not applicable

Place_Keyword: Pacific NW

Place_Keyword: King County

Place_Keyword: WA

Place_Keyword: Washington state

Access_Constraints:

Access Constraint: Data is not available on GIS Data Portal, it may be available via a custom data request

Use_Constraints:

Use Constraint: King County data are made available with the understanding that they shall be used exclusively by the obtainer or his/her authorized agents. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

King County King County Dept of Natural Resources and Parks, Water and Lands Resource Division

Contact_Person: Ken Rauscher

Contact_Position: GIS Analyst

Contact_Address:

Address_Type: mailing and physical

Address: 201 S Jackson St, Suite 706

City: Seattle

State_or_Province: WA

Postal_Code: 98104

Country: US

Contact_Voice_Telephone: 206-477-4414

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

King County King County Dept of Natural Resources and Parks, Water and Lands Resource Division

Contact_Person: Sevin Bilir

Contact_Position: Environmental Scientist III

Contact_Address:

Address_Type: mailing and physical

Address: 201 S Jackson St Suite 600

City: Seattle

State_or_Province: WA

Postal_Code: 98104

Contact_Voice_Telephone: +1(206)477-4646

Contact_Electronic_Mail_Address: sevin.bilir@kingcounty.gov

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

King County King County Dept of Natural Resources and Parks, Water and Lands Resource Division

Contact_Person: John Bethel

Contact_Position: Geologist

Contact_Address:

Address_Type: mailing and physical

Address: 201 S Jackson St Suite 600

City: Seattle

State_or_Province: WA

Postal_Code: 98104

Contact_Voice_Telephone: +1(206)477-4645

Contact_Electronic_Mail_Address: john.bethel@kingcounty.gov

Browse_Graphic:

Browse_Graphic_File_Name:

<http://www5.kingcounty.gov/sdc/DataImages/lsr_ds_landslidebody.jpg>

Browse_Graphic_File_Description:

JPG File of layer overlain on base of WA counties or local cities

Browse_Graphic_File_Type: JPG

Native_Data_Set_Environment:

Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2.3552

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Point_and_Vector_Object_Information:

SDTS_Terms_Description:

SDTS_Point_and_Vector_Object_Type: GT-polygon composed of chains

Point_and_Vector_Object_Count: 868

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: NAD 1983 HARN StatePlane Washington North FIPS 4601 Feet

Lambert_Conformal_Conic:

Standard_Parallel: 47.5

Standard_Parallel: 48.73333333333333

Longitude_of_Central_Meridian: -120.8333333333333

Latitude_of_Projection_Origin: 47.0

False_Easting: 1640416.666666667

False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair

Coordinate_Representation:

Abscissa_Resolution: 0.00032808333333333333

Ordinate_Resolution: 0.00032808333333333333

Planar_Distance_Units: foot_us

Geodetic_Model:

Horizontal_Datum_Name: D North American 1983 HARN

Ellipsoid_Name: GRS 1980

Semi-major_Axis: 6378137.0

Denominator_of_Flattening_Ratio: 298.257222101

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Landslide body (where debris from a slide has been deposited)

Entity_Type_Definition: area data table

Entity_Type_Definition_Source: King County

Attribute:

Attribute_Label: OBJECTID

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: Feature

Attribute_Definition: Name of feature of deep-seated landslide

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: Body

Enumerated_Domain_Value_Definition_Source: King County

Attribute:

Attribute_Label: isParent

Attribute_Definition: Answers if this is a parent landslide

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: N

Enumerated_Domain_Value_Definition_Source: King County

Attribute:

Attribute_Label: parentID

Attribute_Definition: Identification number of parent landslide

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.0

Range_Domain_Maximum: 1061.0

Attribute:

Attribute_Label: slopeSetti

Attribute_Definition: Slope setting

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value_Definition_Source: King County

Enumerated_Domain:

Enumerated_Domain_Value: Modified

Enumerated_Domain_Value_Definition_Source: King County

Enumerated_Domain:

Enumerated_Domain_Value: Natural

Enumerated_Domain_Value_Definition_Source: King County

Attribute:

Attribute_Label: relativeAg

Attribute_Definition: Relative age

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value_Definition_Source: King County

Enumerated_Domain:

Enumerated_Domain_Value: Historic

Enumerated_Domain_Value_Definition_Source: King County

Enumerated_Domain:

Enumerated_Domain_Value: Pre-historic

Enumerated_Domain_Value_Definition_Source: King County

Enumerated_Domain:

Enumerated_Domain_Value: Unknown

Enumerated_Domain_Value_Definition_Source: King County

Attribute:

Attribute_Label: Mapby

Attribute_Definition: Author of mapped shapes

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: KC DNRP DPER

Enumerated_Domain_Value_Definition_Source: King County

Enumerated_Domain:

Enumerated_Domain_Value: SDN

Enumerated_Domain_Value_Definition_Source: King County

Attribute:

Attribute_Label: LidarDate

Attribute_Definition: Date imagery data sent to Author

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Unrepresentable_Domain: UNREPRESENTED DOMAIN

Attribute:

Attribute_Label: headscarp

Attribute_Definition: Confidence score of feature

Attribute_Definition_Source: King County

Attribute:

Attribute_Label: lsID

Attribute_Definition: Identification number

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2.0

Range_Domain_Maximum: 1061.0

Attribute:

Attribute_Label: otherFeatu

Attribute_Definition: Confidence score of feature

Attribute_Definition_Source: King County

Attribute:

Attribute_Label: morphology

Attribute_Definition: Confidence score of feature

Attribute_Definition_Source: King County

Attribute:

Attribute_Label: toeDeposit

Attribute_Definition: Confidence score of feature

Attribute_Definition_Source: King County

Attribute:

Attribute_Label: centroidX

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1279652.05904

Range_Domain_Maximum: 1541256.65552

Attribute:

Attribute_Label: centroidY

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 51580.0068993

Range_Domain_Maximum: 284720.575311

Attribute:

Attribute_Label: areaSqFt

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 6005.74247986

Range_Domain_Maximum: 27415209.7985

Attribute:

Attribute_Label: totalConfi

Attribute_Definition: Total confidence score for landslide

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.0

Range_Domain_Maximum: 40.0

Attribute:

Attribute_Label: perimFt

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 284.06421198

Range_Domain_Maximum: 32777.1062748

Attribute:

Attribute_Label: confidence

Attribute_Definition: Rating associated with total confidence score

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value_Definition_Source: King County

Enumerated_Domain:

Enumerated_Domain_Value: High

Enumerated_Domain_Value_Definition_Source: King County

Enumerated_Domain:

Enumerated_Domain_Value: Low

Enumerated_Domain_Value_Definition_Source: King County

Enumerated_Domain:

Enumerated_Domain_Value: Moderate

Enumerated_Domain_Value_Definition_Source: King County

Attribute:

Attribute_Label: LiDARSourc

Attribute_Definition: Source LiDAR imagery

Attribute_Definition_Source: King County

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: KC GIS

Enumerated_Domain_Value_Definition_Source: King County

Enumerated_Domain:

Enumerated_Domain_Value: KCWLRD

Enumerated_Domain_Value_Definition_Source: King County

Attribute:

Attribute_Label: Shape

Attribute_Definition: Feature geometry.

Attribute_Definition_Source: Esri

Attribute_Domain_Values:

Unrepresentable_Domain: Coordinates defining the features.

Attribute:

Attribute_Label: Shape.area

Attribute:

Attribute_Label: Shape.len

Overview_Description:

Entity_and_Attribute_Detail_Citation: King County

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: KCGIS Center

Contact_Person: Cheryl Wilder

Contact_Position: Data Sales Coordinator

Contact_Address:

Address_Type: mailing and physical

Address: 201 S Jackson St, Suite 706

City: Seattle

State_or_Province: WA

Postal_Code: 98104

Country: US

Contact_Voice_Telephone: 206-477-4421

Resource_Description: /plibrary2/enviro/shapes/polygon/lsr_ds_landslidebody.shp

Distribution_Liability:

Distribution Liability: King County disclaims any warranty of use of any digital product or data beyond that for which it was designed.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: featureclass and shapefile

Fees:

Contact KCGIS Client Services for the cost of reproduction - <http://www.kingcounty.gov/operations/GIS/GISData/GISDataDistribution.aspx>

Metadata_Reference_Information:

Metadata_Date: 20161013

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

King County King County Dept of Natural Resources and Parks, Water and Lands Resource Division

Contact_Person: Ken Rauscher

Contact_Position: GIS Analyst

Contact_Address:

Address_Type: mailing and physical

Address: 201 S Jackson St, Suite 706

City: Seattle

State_or_Province: WA

Postal_Code: 98104

Country: US

Contact_Voice_Telephone: 206-477-4414

Contact_Electronic_Mail_Address: firstname.lastname@kingcounty.gov

Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time