Climate Change in Svalbard - University of Florida...POLAR BEAR Kim Holmén. page 21 Other...
Transcript of Climate Change in Svalbard - University of Florida...POLAR BEAR Kim Holmén. page 21 Other...
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Kim Holmén
International Director
Norwegian Polar Institute
Climate Change in Svalbard
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Climate Research Unit, University of East Anglia
http://www.cru.uea.ac.uk/cru/info/warming/
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Kim Holmén. page 3
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Svalbard:
Norwegian Arctic
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-13.1 Sv
11.5 Sv
1.6 Sv
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Barentsburg
Hornsund
Ny-Ålesund
Longyearbyen
SVALBARD
~60,000 km2
~60% glaciers
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CLIMATE CHANGE ?• Detection
– Is climate changing?– Are these changes unique?
• Attribution– What is causing the changes?
• Natural variation (Sun, volcanoes, etc.)• Greenhouse gases released by humankind• Other human induced changes
• Future change– Models
• Effects of climate change– Ecosystems– Society
• Agriculture• Infrastructure
– Combined effects
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Climate Research Unit, University of East Anglia
http://www.cru.uea.ac.uk/cru/info/warming/
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http://data.giss.nasa.gov/gistemp/animations/
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Geographical pattern of surface warming
Projected surface temperature changes for the late 21st century (2090-2099). The map shows the multi-AOGCM average projection for the A1B SRES scenario. All temperatures are relative to the period 1980-1999.
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Sea surface temperatureDecember 8, 2014
yr.no
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Kim Holmén. page 13
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http://www.climate.gov/news-features/videos/very-little-old-sea-ice-remains-arctic
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What is changing in theArctic Sea Ice System?• Ice extent• Ice dynamics and
distribution• Sea ice thickness
Hopen max. seas. ice thickness ( drillings)
Gerland et al. 2008 GRL
Fram Strait icethickness (ULS)
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POLAR BEAR
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Other drivers…
Aftenposten, January 19, 2013
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WOLF
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Grey Wolf
Wikimedia commons
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NARWHAL
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Narwhal
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Svalbard:
Norwegian Arctic
Photo: Kit Kovacs and Christian Lydersen
Thanks for your attention !
Thanks for your attention !
Thanks for your attention !WALRUS