David Bressan's blog

Online papers & resources

- Free PDF-files of papers published:

- Journal of Geocryology on the Internet:

http://www.netpilot.ca/geocryology/

Past Permafrost Records in Arctic Siberia

The IPY (International Polar Year) BLOG has released a post about research conducted by a Russian/German-expedition to the Dimitrii Laptev

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Permafrost and climate in Europe

The changing state of permafrost is not only a research interest for nation that share vast regions of permafrost (like Canada or Russia), but also for nations that posses patches of discontinuous permafrost. During the last glacial maximum widespread, today the mayor areas of European permafrost can found on Svalbard, Iceland, Fennoscandia, Pyrenees, Carpathians, parts of European Russia and in the Alps.

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Large tundra methane burst

A major concern about rising temperatures in the artic and subartcic regions is the possible effect on methane released from perennial frozen soils and peat material.

Series of lectures on „Ice & Climate: Permafrost in a changing environment" (Italy)

Series o

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The "Hohe Gaisl" carbonatic rockglacier

Active rockglaciers are less common in the mountain ranges composed of carbonatic rocks, such as the Northern Cretaceous Alps ort he Dolomites, even if here more than lithology probably the minor mean elevation plays a role.
Although few active rockglaciers are present in the Dolomites, they have never been studied in detail.

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Very old indeed - canadian permafrost much older then though

The computer models used in climate change prediction lacks an important factor – the change in permafrost geographically extension and depth. Covering at least 22 to 38 millions square kilometres, mostly in circumarctic belt, it is thawing.

But still data about the mostly hidden ground ice is not complete, about his change and the impact of this change on the climate, for example trough the release of methane in the atmosphere.

PermaNet part I

Permafrost and his change can affect heavenly infrastructures like streets and buildings in mountain areas above 2.500m a.s.l. To secure existing structures, and provide clues to build and maintain new ones in permafrost affected terrain, exchange of knowledge and experience about the permafrost issue between countries is essential.