A51M:
Extratropical and High-Latitude Storms, Teleconnections, Extreme Weather, and the Changing Polar Climate I

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Session ID#: 16205

Session Description:
Synoptic storms and large-scale teleconnections are prominent features characterizing daily-to-decadal climate variability in the extratropics and high-latitudes. Storms often bring extreme weather, including high-wind events, large ocean waves and surges, coastal flooding and erosion, as well as rapid temperature changes. Teleconnection patterns play modulating roles in storm activity, linking polar and midlatitude climate. In addition, the tropics has been recognized as an important source for triggering teleconnections, and may also be subject to impacts of polar climate changes. Storms and teleconnections have demonstrated systematic variations, leading to alterations of feedback processes and, in turn, contributing to climate variability and change. This session will provide a venue to present progress and new ideas on extratropical and high-latitude storm activity, tropical or extratropical teleconnections with the polar regions, and associated physical feedback processes in the context of the changing polar climate, as well as resulting extreme weather events, ecosystem- and societal impacts.
Primary Convener:  Xiangdong Zhang, University of Alaska Fairbanks, Fairbanks, AK, United States
Conveners:  Xiangdong Zhang, University of Alaska Fairbanks, Fairbanks, AK, United States, Kent Moore, University of Toronto, Chemical & Physical Sciences, Toronto, ON, Canada and James E Overland, NOAA Seattle, Seattle, WA, United States
Chairs:  Xiangdong Zhang, University of Alaska Fairbanks, Fairbanks, AK, United States, Kent Moore, University of Toronto, Chemical & Physical Sciences, Toronto, ON, Canada and James E Overland, NOAA Seattle, Seattle, WA, United States
OSPA Liaison:  Kent Moore, University of Toronto, Chemical & Physical Sciences, Toronto, ON, Canada
Co-Organized with:
Ocean Sciences, Global Environmental Change, Ocean Sciences, Hydrology, and Cryosphere

Cross-Listed:
  • C - Cryosphere
  • GC - Global Environmental Change
  • H - Hydrology
  • OS - Ocean Sciences

Proposed Co-Organized Session with:
  • C - Cryosphere
  • GC - Global Environmental Change
  • H - Hydrology
  • OS - Ocean Sciences
Index Terms:

1621 Cryospheric change [GLOBAL CHANGE]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]
3339 Ocean/atmosphere interactions [ATMOSPHERIC PROCESSES]
3364 Synoptic-scale meteorology [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Weather extremes linked to interaction of the Arctic and mid- and lower latitudes (Invited) (118908)
Timo P Vihma, Petteri Uotila and Tiina Nygård, Finnish Meteorological Institute, Helsinki, Finland
Modelling the Influence of Tropically-Excited Poleward Propagating Rossby Waves and their influence on recent Arctic Climate Change. (131629)
Michelle McCrystall1,2, J Scott Hosking2, Amanda Maycock3 and John Adrian Pyle1, (1)University of Cambridge, Department of Chemistry, Cambridge, United Kingdom, (2)NERC British Antarctic Survey, Cambridge, United Kingdom, (3)School of Earth and Environment, University of Leeds, Leeds, United Kingdom
More Frequent Weak Stratospheric Polar Vortex States Linked to Cold Extremes (134237)
Marlene Kretschmer, University of Reading, Reading, United Kingdom, Dim Coumou, Potsdam Institute for Climate Impact Research, Potsdam, Germany, Laurie A Agel, University of Massachusetts Lowell, Department of Environmental, Earth and Atmospheric Sciences, Lowell, United States, Mathew A Barlow, Univ of Massachusetts, Lowell, MA, United States, Eli Tziperman, Harvard University, Cambridge, MA, USA., Cambridge, United States and Judah Levi Cohen, Atmospheric and Environmental Research Lexington, Lexington, MA, United States
Isolating the atmospheric circulation response to Arctic sea-ice loss in the coupled climate system (142203)
Paul J Kushner and Russell Blackport, University of Toronto, Department of Physics, Toronto, ON, Canada
Recent amplification of the North American Winter Temperature Dipole (161982)
Deepti Singh1, Daniel L Swain2, Justin S Mankin3, Daniel E Horton4, Leif N Thomas5, Bala Rajaratnam5 and Noah S Diffenbaugh6, (1)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (2)Stanford University, Earth System Science, Stanford, CA, United States, (3)Columbia University of New York, Palisades, NY, United States, (4)Northwestern University, Earth & Planetary Science, Evanston, IL, United States, (5)Stanford University, Stanford, CA, United States, (6)Stanford University, Earth System Science and Woods Institute for the Environment, Stanford, United States
The importance of wave break events for synoptic scale buildups of zonal available potential energy (177829)
Kevin Bowley1, John R Gyakum2 and Eyad Atallah1, (1)McGill University, Montreal, QC, Canada, (2)McGill University, Atmospheric and Oceanic Sciences, Montreal, QC, Canada
The Impact of Projected Transient Arctic Sea Ice Loss on Northern Hemisphere Climate (186745)
Michael A Alexander, NOAA Physical Sciences Laboratory, Boulder, United States and Lantao Sun, CIRES, Boulder, CO, United States
How does the shrinking sea ice influence changing wind speed over the Arctic Ocean? (187251)
Liisi Jakobson1, Timo P Vihma2 and Erko Jakobson1, (1)Tartu Observatory, Tartu, Estonia, (2)Finnish Meteorological Institute, Helsinki, Finland

See more of: Ocean Sciences