Heavy MET talk - The Arctic climate transformation and the effects on the cryosphere
Автор: Meteorologisk institutt
Загружено: 2020-03-31
Просмотров: 160
#ClimateChange #Arctic #Temperature #Snow #Permafrost #SeaIce #Cryosphere
The Arctic climate transformation and the effects on the cryosphere
(Heavy MET talk); Ketil Isaksen, Senior Scientist at Norwegian Meteorological Institute
https://www.researchgate.net/profile/...
A new Arctic is emerging due to climate change. Over the past 50 years, the temperature in the Arctic has risen twice as fast as the global average. The increase of air temperature by 3 to 5 °C in Svalbard makes this region one of the fastest-warming areas in the world, with widespread consequences. Recent winters have been characterised by periods of extraordinarily warm weather in combination with intense rainfall, causing ecological disturbance and new challenges for societies and infrastructure. The permafrost in Svalbard has the highest ground temperatures this far North in the Arctic and has warmed considerably. In addition, Longyearbyen and its surroundings are experiencing a number of natural hazards.
This presentation explores the effects of global warming on the frozen components of the Arctic, the so-called cryosphere. The emphasis is on the terrestrial environment, especially related to changes in permafrost and snow cover. The consequences of these ongoing and predicted changes for nature as well as society will be outlined, with examples across the Arctic including Svalbard.
The Heavy MET talk is based on the following publications and presentations:
Isaksen K. & Hanssen-Bauer I. 2019. The Arctic climate transformation and the effects on the cryosphere. Invited talk at Svalbard Science Conference 2019, Fornebu, Oslo 5-6 November 2019.
https://www.forskningsradet.no/conten...
Romanovsky V, Isaksen K, Drozdov D, Anisimov O, Instanes A, Leibman M, McGuire AD, Shiklomanov N, Smith S, Walker D, 2017. Changing permafrost and its impacts. In: Snow, Water, Ice and Permafrost in the Arctic (SWIPA) 2017. pp. 65-102. Arctic Monitoring and Assessment Programme (AMAP), Oslo, Norway.
https://www.amap.no/documents/doc/sno...
Hanssen-Bauer, I., E. J. Førland, H. Hisdal, S. Mayer, A. B. Sandø and A. Sorteberg (eds.), 2019. Climate in Svalbard 2100 - a knowledge base for climate adaptation. NCCS report 1/2019. https://cms.met.no/site/2/klimaservic...
Isaksen, K., Nordli, Ø., Førland, E. J., Łupikasza, E., Eastwood, S., and Niedźwiedź, T. ( 2016), Recent warming on Spitsbergen—Influence of atmospheric circulation and sea ice cover, J. Geophys. Res. Atmos., 121, 11,913– 11,931, doi:10.1002/2016JD025606.
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Visuals: Powerpoint and photos.
Audio & Video Production by the Norwegian Meteorological Institute

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