Name: Tongass Landslide Initiation

Display Field: LANDSLIDE_NAME

Type: Feature Layer

Geometry Type: esriGeometryPoint

Description: This is the point feature class for the once-over landslide inventory of the Tongass National Forest. Most of the landslide polygons were digitized on the 1998 to 2010 orthophotos in GIS. Many of them were age bracketed using air photos back to the 1929 Navy Trimegon photos. It includes both field and photo interpreted landslides. This point layer represents initiation points for debris avalanches, debris torrents, combination-debris avalanches/torrents, slumps, rock fall initiated failures, and rotational failures. There is an accompanying polygon feature class (Tongass_Landslide_Areas), which represents all mass wasting features, including talus slopes, snow avalanche fields, and snow avalanche chutes.

Copyright Text: Dennis Landwehr, Forest Soil Scientist, Ketchikan, AK

Default Visibility: true

MaxRecordCount: 2000

Supported Query Formats: JSON, geoJSON, PBF

Min Scale: 0

Max Scale: 0

Supports Advanced Queries: true

Supports Statistics: true

Has Labels: false

Can Modify Layer: true

Can Scale Symbols: false

Use Standardized Queries: true

Supports Datum Transformation: true

Extent:

XMin: -139.62801392400002
YMin: 54.671685229000005
XMax: -130.01995186899998
YMax: 59.990859422
Spatial Reference: 4269  (4269)

Drawing Info:

Renderer:
Simple Renderer:
Symbol:
Label: N/A
Description: N/A
Transparency: 0
Labeling Info:

Advanced Query Capabilities:

Supports Statistics: true
Supports OrderBy: true
Supports Distinct: true
Supports Pagination: true
Supports TrueCurve: true
Supports Returning Query Extent: true
Supports Query With Distance: true
Supports Sql Expression: true
Supports Query With ResultType: false
Supports Returning Geometry Centroid: false
Supports Binning LOD: false
Supports Query With LOD Spatial Reference: false

HasZ: false

HasM: false

Has Attachments: false

HTML Popup Type: esriServerHTMLPopupTypeAsHTMLText

Type ID Field: null

Fields:

• OBJECTID ( type: esriFieldTypeOID, alias: OBJECTID )
• TNF_LS_NO ( type: esriFieldTypeInteger, alias: TNF_LS_NO )
• SLIDE_NO ( type: esriFieldTypeString, alias: SLIDE_NO, length: 5 )
• INVENTORY ( type: esriFieldTypeString, alias: INVENTORY, length: 4 , Coded Values: [FSL1: Helmer's airphoto inventory of 1964] , [FSL2: Tom Swan's airphoto inventory 1973-84] , [FSL3: FSL field inventory 1984-86] , ...29 more... )
• CONFID_DAT ( type: esriFieldTypeString, alias: CONFID_DAT, length: 9 )
• YR_INT_TYP ( type: esriFieldTypeString, alias: YR_INT_TYP, length: 5 )
• YR_OCCURANCE ( type: esriFieldTypeInteger, alias: YR_OCCURANCE )
• LATEST_YEAR_NOTSEEN ( type: esriFieldTypeSmallInteger, alias: LATEST_YEAR_NOTSEEN )
• FIRST_YEAR_SEEN ( type: esriFieldTypeSmallInteger, alias: FIRST_YEAR_SEEN )
• TREATMENT ( type: esriFieldTypeString, alias: TREATMENT, length: 1 , Coded Values: [Y: Yes] , [N: No] )
• RD_RELATED ( type: esriFieldTypeString, alias: RD_RELATED, length: 1 , Coded Values: [Y: Yes] , [N: No] )
• STRM_IMPAC ( type: esriFieldTypeString, alias: STRM_IMPAC, length: 1 , Coded Values: [Y: Yes] , [N: No] )
• PRED_COVER ( type: esriFieldTypeString, alias: PRED_COVER, length: 50 , Coded Values: [BARE: Bare Soil] , [BATR: Trees] , [BEDR: Bedrock] , ...2 more... )
• COVER_SPP ( type: esriFieldTypeString, alias: COVER_SPP, length: 50 , Coded Values: [ALRU2: red alder] , [PISI: sitka spruce] , [PHAR3: grasses] , ...2 more... )
• COVER_PERCENT ( type: esriFieldTypeSmallInteger, alias: COVER_PERCENT )
• FAIL_TYPE ( type: esriFieldTypeString, alias: FAIL_TYPE, length: 14 , Coded Values: [SOAR-DEFL-FLOW: Combination debris avalanche and debris torrent] , [SOAR-DEAV-FLOW: Debris avalanche] , [MASC-UNDI-SLID: Debris avalanche field] , ...7 more... )
• VEG_CLASS ( type: esriFieldTypeString, alias: VEG_CLASS, length: 2 , Coded Values: [UN: Unvegetated] , [AL: Alder] , [PV: Partially revegetated] , ...1 more... )
• EXAMINER ( type: esriFieldTypeString, alias: EXAMINER, length: 50 , Coded Values: [Darin Silkworth: Darin Silkworth] , [Dennis Landwehr: Dennis Landwehr] , [Becki Saari: Becki Saari] , ...4 more... )
• SLOPE_PER ( type: esriFieldTypeSmallInteger, alias: SLOPE_PER )
• SLOPE_SHA ( type: esriFieldTypeString, alias: SLOPE_SHA, length: 2 )
• BDRK_F_ZON ( type: esriFieldTypeString, alias: BDRK_F_ZON, length: 3 )
• PM_F_ZONE ( type: esriFieldTypeString, alias: PM_F_ZONE, length: 3 )
• LANDSLIDE_NAME ( type: esriFieldTypeString, alias: LANDSLIDE_NAME, length: 50 )
• LANDWEHR_N ( type: esriFieldTypeString, alias: LANDWEHR_N, length: 3 )
• GROUPED_SL ( type: esriFieldTypeString, alias: GROUPED_SL, length: 2 )
• RECURRANCE ( type: esriFieldTypeString, alias: RECURRANCE, length: 9 )
• NUMBER_ ( type: esriFieldTypeString, alias: NUMBER_, length: 4 )
• SHAPE ( type: esriFieldTypeGeometry, alias: SHAPE )

Supported Operations:   Query   Query Attachments   Query Analytic   Generate Renderer   Return Updates

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