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Service Description: Point feature class showing threat assessment rankings for flood, erosion, and permafrost. In 2019, the Denali Commission Statewide Threat Assessment found that 144 Alaska Native communities (43 percent of all communities in the state of Alaska) are likely to face some degree of infrastructure damage from erosion, flooding, and/or permafrost thaw. Communities are grouped into three categories groups 1-3, with group 1 most at-risk, group 2 at moderate risk, and group 3 at lower risk .
The study was carried out by three entities working closely with the Denali Commission. The US Army
Corps of Engineers Alaska District (USACE) was responsible for evaluating threats from flooding and
erosion.  The new work carried out by USACE focused primarily upon flooding, because erosion was
considered extensively in the Baseline Erosion Assessment (USACE 2009) for 134 communities that were
also evaluated for this study.  The University of Alaska Fairbanks (UAF) Institute of Northern Engineering
and the USACE Engineer Research and Development Center Cold Regions Research and Engineering
Laboratory (CRREL) were responsible for evaluating the risk from thawing permafrost, as well as
integrating the combined threats from erosion, flooding, and thawing permafrost into an overall score.

Map Name: Map

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Layers:

• Flood (0)
• Erosion (1)
• Permafrost (2)

Description:

Service Item Id: a4e2047e99a745d8a9deacf3f3bc807f

Copyright Text: Denali Commission, University of Alaska Fairbanks (UAF) US Army Corps of Engineers Alaska District.

Spatial Reference: 102100  (3857)


Single Fused Map Cache: false

Initial Extent:

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YMin: 5953097.828865247
XMax: -1.2328163264118861E7
YMax: 1.2429679358272301E7
Spatial Reference: 102100  (3857)

Full Extent:

XMin: -1.9115652698518783E7
YMin: 7618623.667731326
XMax: -1.491066649915516E7
YMax: 1.1501957869609972E7
Spatial Reference: 102100  (3857)

Units: esriMeters

Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP

Document Info:

Title: Map
Author:
Comments:
Subject:
Category:
Keywords: UAF,Denali Commission,Flood,Permafrost,Erosion,Climate,Environment
AntialiasingMode: None
TextAntialiasingMode: Force

Supports Dynamic Layers: true

MaxRecordCount: 2000

MaxImageHeight: 4096

MaxImageWidth: 4096

Supported Query Formats: JSON, geoJSON, PBF

Supports Query Data Elements: true

Min Scale: 0

Max Scale: 0

Supports Datum Transformation: true



Child Resources:   Info   Dynamic Layer

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