thermokarst landscape on an island
Funded Title: 
Thermokarst Monitoring at the Landscape Level: A Feasibility Study
Location: 
North Slope, Alaska
Duration: 
September 1, 2012 to December 1, 2013

Permafrost – the thick layer of permanently frozen soil found in Arctic regions – has been thawing rapidly over the past century due to climate change. When permafrost thaws unevenly, it produces thermokarst landscapes, irregular surfaces of small hills interspersed with hollows. The processes that produce thermokarst can lead to significant changes within the surrounding ecosystems, altering water quality, vegetation, and water, carbon, and nutrient storage and flows.

The Boreal System illustration depicts some of the landscape characteristics, changes and drivers of change in the boreal ecosystem prevalent throughout Alaska and Northwest Canada. This illustration was developed as part of the Integrated Ecosystem Model project supported by the AK CASC.

The vector illustration can be used as a PDF or opened and edited using Adobe Illustrator.

This white paper by J. Littell, J. Koch, J. Young, and R. Toohey describes some of the impacts of ecological drought in Alaska, including changes in permafrost, fire, and vegetation change.

Funded Title: 
Use of the AIEM Permafrost Module Output to Assess the Permafrost Changes in the 21st Century and their Impact on Existing and Future Infrastructure in the Alaskan Arctic
Location: 
Northern Alaska
Duration: 
October 1, 2014 to September 1, 2016

The permafrost module of the Integrated Ecosystem Model (IEM) will be used to establish several high spatial resolution (1km x 1km) and very high resolution (30m x 30m) scenarios of changes in permafrost characteristics in the Alaskan Arctic in response to projected climate change and northern infrastructure development. Impact of these changes in permafrost on northern Alaskan ecosystems and infrastructure will be assessed and regional maps of the possible impacts will be developed.

Changing Ice is a biannual newsletter that highlights cryosphere-snow, ice, permafrost-and related research from around Alaska. In this issue, the featured stories include:

Changing Ice is a biannual newsletter that highlights cryosphere-snow, ice, permafrost-and related research from around Alaska. In this issue, the featured stories include:

"Modeling Thermokarst Dynamics in Alaska Ecosystems" was a poster presented at the American Geophysical Union Fall 2012 Meeting in San Francisco, California. The poster authors include Yujin Zhang, A. David McGuire, Helene Genet, Bob Bolton, Vladimir Romanovsky, Guido Grosse, and Torre Jorgenson.

"CO2 and CH4 Fluxes and Net C Storage Following Permafrost Thaw in Interior Alaska" was a poster presented at the American Geophysical Union Fall 2012 Meeting in San Francisco, California.

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