Landslide Hazards along River Corridors - Rock fall potential

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: King County
Publication_Date: 20160816
Title: Landslide Hazards along River Corridors - Rock fall potential
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:
Rock fall is a type of landslide that occurs in bedrock where single or multiple rocks are dislodged and fall from steep cliff faces. In a typical alpine setting, cliffs are located on the upper slopes of a mountain with a talus below, extending to the base of the mountain. The talus is composed of rocks that have fallen from the cliff face and accumulate below the cliff. The talus marks the limit of most rock fall from the cliff, but a few boulders that fall from the cliff travel beyond the toe of the talus. It is these outliers that can pose a hazard to adjacent development (see figure "b" below). Rock fall can be triggered by earthquakes, freeze-thaw cycles, or severe weather. Tumbling boulders falling from a cliff face are fast moving and can level virtually anything in their path.
Purpose:
Suitable for general reference and analyses. Identifies only rock fall potential along the river corridor within the study limits in King County.
Supplemental_Information:
The CONEFALL software program was used to implements this approach in a GIS environment to map areas where rock fall could propagate downslope from a source. As a starting point for the CONEFALL program, cliff-faces were identified to delineate the line representing the base-of-cliff/top-of-talus. Within the study limits, these lines were mapped based on professional judgement using a variety of tools in a GIS environment including vertical orthophotography, oblique photography, and slope mapping. Slopes inclined at more than 200 percent were especially identified.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20151230
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.013182
East_Bounding_Coordinate: -121.293973
North_Bounding_Coordinate: 47.778567
South_Bounding_Coordinate: 47.163821
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_rf_rockfallpotential.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: 150
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: Rock fall potential
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: LiDAR_Sour
Attribute_Definition: Source LiDAR imagery and date imagery data sent to Author
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: KC GIS 2015
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: MapDate
Attribute_Definition: Date Author completed mapping
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 2015
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: MapMethod
Attribute_Definition: Method to map rock fall potential
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: CONEFALL method
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
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_rf_rockfallpotential.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
Generated by mp version 2.9.12 on Sat Dec 02 11:38:53 2023