slpstab

Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Shaw, S.C. and Vaugeois, L.M., 1999.
Publication_Date: 1/1/2000
Publication_Time: Unknown
Title:
Forest Practices Slope Stability Screen
Edition: TFW 118
Geospatial_Data_Presentation_Form: raster digital data
Other_Citation_Details:
SMORPH: Shaw, S.C. and Johnson, D.A., 1995, Slope Morphology Model Derived from Digital Elevation Data, in Proceedings,1995 Northwest Arc/Info Users Conference, Coeur d'Alene, Idaho, Oct. 23-25, 13p. SHALSTAB: Montgomery,D.R. and Dietrich, W.E., 1994, A Physically Based Model for the Topographic Control on Shallow Landsliding, Water Resources Research, Vol. 30, No. 4, p. 1153-1171.
Online_Linkage: file://dnr/divisions/FP_GIS/lhz/data/slpstab_west/slpstab
Description:
Abstract:
This coverage is a predictive data layer of shallow-rapid slope stability using one or more calibrated GIS-based models. This grid covers all forested watersheds of western Washington State. This data layer is an anticipated outcome of the Forestry Module negotiations as outlined in the Forest and Fish Report (1999) and legislated in the Engrossed Substitute House Bill 2091 (1999).
Purpose:
The purpose of this dataset is to be a screen for determining shallow-rapid landslide potential.
It is intended to be used for pre-classification screeening of forest practices applications and 
screening for slope stability concerns on managed timberlands.
Supplemental_Information:
This data is derived from calibrated algorithms (models) that use DEMs to
generate slope and curvature information.  The models used are  SMORPH and
SHALSTAB.  The stated resolution of the data is tied to the resolution of the DEM
available in the area.   Additionally, other information, such as landslide
inventories, soils, mass wasting units, geology, and precipitation amounts are
used in the calibration of these models to a specific area.  These landslide data were
collected at a variety of scales, over a large period of years.  The horizontal accuracy of the grid coverage is dependent on the resolution of the Digital Elevation Model (DEM) from which it was derived.  Better information
is obtained with higher resolution DEMs.  In those areas where a 10 meter DEM
was  available, the accuracy is +/- 35 feet.   At present, 10 meter resolution data are available for most of western Washington. As better DEMs become available, the model may be rerun in those areas and will update the existing coverage.
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 1/1/2000.
Single_Date/Time:
Calendar_Date: 6/1/2000
Single_Date/Time:
Calendar_Date: 9/1/2001
Currentness_Reference:
publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -124.864005
East_Bounding_Coordinate: -120.627309
North_Bounding_Coordinate: 49.029936
South_Bounding_Coordinate: 45.482924
Keywords:
Theme:
Theme_Keyword_Thesaurus: REQUIRED: Reference to a formally registered thesaurus or a similar authoritative source of theme keywords.
Theme_Keyword: slope stability
Theme_Keyword: landslides
Theme_Keyword: predictive modeling
Place:
Place_Keyword: western Washington State
Access_Constraints: Data Category 1 - Public Information: Public information is information that can be or currently is released to the public. It does not need protection from unauthorized disclosure, but does need integrity and availability protection controls. WA ISB, IT Security, Data Category 1 - Public Information (See Security Information). External requests for this data should be directed to the WA DNR GIS Data Center web site (http://www.dnr.wa.gov/BusinessPermits/Topics/Data/Pages/gis_data_center.aspx).
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Doretta Collins
Contact_Organization: WADNR-Forest Practices Division
Contact_Position: GIS Specialist
Contact_Address:
Address_Type: mailing and physical address
Address:
1111 Washington St. S.E.
Address:
P.O. Box 47012
Address:
Forest Practices Division
City: Olympia
State_or_Province: WA
Postal_Code: 98504-7012
Country: USA
Contact_Voice_Telephone: (360) 902-1426
Contact_TDD/TTY_Telephone: (360) 902-1400
Contact_Facsimile_Telephone: (360) 902-1428
Contact_Electronic_Mail_Address: doretta.collins@wadnr.gov
Hours_of_Service: 9:00 to 5:00
Security_Information:
Security_Classification_System: WA ISB, Information Technology Security Standards, Policy 401-S4
Security_Classification: Public
Security_Handling_Description: Data Category 1 - Public Information: Public information is information that can be or currently is released to the public. It does not need protection from unauthorized disclosure, but does need integrity and availability protection controls. (Washington State Information Services Board, Information Technology Security Standards, Policy 401-S4, http://isb.wa.gov/policies/401S.doc).
Native_Data_Set_Environment:
Microsoft Windows Vista Version 6.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.3000
Cross_Reference:
Citation_Information:
Originator: Shaw, S.C. and Vaugeois, L.M., 1999
Publication_Date: 1/1/2000
Title:
Comparison of GIS-based Models of Shallow Landsliding for Application to Watershed Management
Edition: TFW 118
Geospatial_Data_Presentation_Form: model
Other_Citation_Details:
SMORPH: Shaw, S.C. and Johnson, D.A., 1995, Slope Morphology Model Derived from Digital Elevation Data, in Proceedings,1995 Northwest Arc/Info Users Conference, Coeur d'Alene, Idaho, Oct. 23-25, 13p. SHALSTAB: Montgomery,D.R. and Dietrich, W.E., 1994, A Physically Based Model for the Topographic Control on Shallow Landsliding, Water Resources Research, Vol. 30, No. 4, p. 1153-1171.
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
modeled shallow rapid slope stability:  tests (Shaw & Vaugeois, 1999) show that 93% of shallow rapid type landslides 
occur in areas modeled with a high (value = 3) probability of instability.

no model accurately predicts where deep seated landslides are going to occur
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
data is based on USGS 10 meter dems.  as such, it has a horizontal accuracy of 40 feet
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
data is based on USGS 10 meter dems.  as such, it has a vertical accuracy of 50 feet
Lineage:
Process_Step:
Process_Description:
Metadata imported.
Process_Step:
Process_Description:
Metadata imported.
Process_Date: 20111201
Process_Time: 10382300
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Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 37432
Column_Count: 30032
Vertical_Count: 1
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 45.833333
Standard_Parallel: 47.333333
Longitude_of_Central_Meridian: -120.500000
Latitude_of_Projection_Origin: 45.333333
False_Easting: 1640416.666667
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 33.842092
Ordinate_Resolution: 33.842092
Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: D_North_American_1983_HARN
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
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Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: slpstab.vat
Attribute:
Attribute_Label: Rowid
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: VALUE
Attribute_Definition:
Modeled probability of slope instability
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition:
Low expected probability of slope instability
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition:
Moderate expected probability of slope instability
Enumerated_Domain:
Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition:
High expected probability of slope instability
Attribute:
Attribute_Label: COUNT
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Doretta Collins
Contact_Organization: Washington State Department of Natural Resources
Contact_Position: GIS Specialist
Contact_Voice_Telephone: 360-902-1426
Contact_Facsimile_Telephone: 360-902-1428
Contact_Electronic_Mail_Address: doretta.collins@dnr.wa.gov
Resource_Description: Downloadable Data
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Transfer_S