Active Layer Thickness 2080-2089
type: Dataset
description: This raster, created in 2010, is output from the Geophysical Institute Permafrost Lab (GIPL) model and represents simulated active layer thickness (ALT) in meters averaged across a decade. The file name specifies the decade the raster represents. For example, a file named ALT_1980_1989.tif represents the decade spanning 1980-1989. Cell values represent simulated maximum depth (in meters) of thaw penetration (for areas with permafrost) or frost penetration (for areas without permafrost). If the value of the cell is positive, the area is underlain by permafrost and the cell value specifies the depth of the seasonally thawing layer above permafrost. If the value of the cell is negative, the ground is only seasonally frozen and the cell value specifies the depth of seasonal frost. The raster covers the entire state of Alaska and has a spatial resolution of 2 x 2km. These data were generated by forcing the GIPL model with a composite of five GCM model outputs (ECHAM5, GFLD21, MIROC, HADLEY and CCCMA) for the A1B emissions scenario.
keyword: academics-scientific-researchers
keyword: amerigeo
keyword: amerigeoss
keyword: ckan
keyword: dynamic-vegetation-ecosystem-models
keyword: environment
keyword: federal-resource-managers
keyword: geo
keyword: geoss
keyword: interested-public
keyword: land-cover
keyword: landscape-ecology
keyword: landscape-processes
keyword: national
keyword: north-america
keyword: permafrost
keyword: soil-temperature
keyword: united-states
keyword: wetlands
issued: 2025-11-21T03:08:06.115773
modified: 2019-09-09T01:22:36-08:00
theme: {geospatial}
contact point: Organization
  fn: (Point of Contact); Arctic Landscape Conservation Cooperative (Point of Contact, Publisher)
spatial: Location

US Migrating
type: Agent

Product webpage
type: Distribution
description: Simulated active layer thickness (ALT) in meters averaged across 2080 - 2089.
access URL: http://arcticlcc.org/products/spatial-data/show/active-layer-thickness-2080-2089
issued: 2021-11-04T16:23:52.700998
modified: 2025-11-21T03:08:06.103658

ActiveLayerThickness_2080_2089.zip
type: Distribution
description: File stored on ScienceBase.
access URL: https://www.sciencebase.gov/catalog/file/get/5a300b00e4b08e6a89d57caf
issued: 2021-11-04T16:23:52.701007
modified: 2025-11-21T03:08:06.104060

Web page for David McGuire, PhD
type: Distribution
description: about.php
access URL: http://www.akcfwru.uaf.edu/about.php
issued: 2021-11-04T16:23:52.701091
modified: 2025-11-21T03:08:06.104444

Web page for Scott Rupp, PhD
type: Distribution
access URL: http://www.snap.uaf.edu/
issued: 2021-11-04T16:23:52.701093
modified: 2025-11-21T03:08:06.104815

Web page for Arctic Landscape Conservation Cooperative
type: Distribution
access URL: http://arcticlcc.org
issued: 2021-11-04T16:23:52.701506
modified: 2025-11-21T03:08:06.105189

Original Metadata
type: Distribution
description: The metadata original source
media type: text/xml
format: XML
access URL: https://data.doi.gov/harvest/object/2eb0ea4f-7225-4578-9213-8c4372414b42
issued: 2022-07-14T19:29:17.204665
modified: 2025-11-21T03:08:06.105583