A065
Jetstream Dynamics, Atmospheric Rossby waves and Associated Extreme Weather and Climate Events

Session ID#: 161494

Session Description:
Recent extreme weather and climate episodes, including the Pacific Northwest heatwave of June 2021, the Siberian heatwave of early summer 2020 and the US cold-air outbreak in February 2021, highlight the need to advance understanding of planetary and synoptic-scale atmospheric jetstream and Rossby wave dynamics, in particular their impacts on extreme weather and climate events, including the predictability of such events. Abstracts are solicited dedicated to:

• linear and non-linear dynamics of Rossby wave propagation or quasi-stationarity, wave-breaking, atmospheric blocking, or atmospheric jet waveguides, with implications for extreme weather/climate events.

• links between extreme weather/climate events and linear or non-linear Rossby waves, including wave-breaking, blocking and recurrent regimes.

• different diagnostics of Rossby waves, blocking, wave-breaking and waveguides, their connections to extreme events, and assessment of their representation in numerical weather and climate models.

• the role of Rossby wave dynamics on sub-seasonal to seasonal predictability (2 weeks to several months) and implications for extreme weather. 

• analyzing projected future changes in Rossby waves and/or waveguide dynamics, and associated weather/climate events.

Index Terms:

1620 Climate dynamics [GLOBAL CHANGE]
3305 Climate change and variability [ATMOSPHERIC PROCESSES]
4313 Extreme events [NATURAL HAZARDS]
4321 Climate impact [NATURAL HAZARDS]

Primary Convener:  Rachel H White, University of British Columbia, Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada
Conveners:  Kai Kornhuber, Columbia University, Earth Institute/Lamont-Doherty Earth Observatory, New York, United States and Haiyan Teng, Pacific Northwest National Laboratory, Richland, United States
 
Fastest jet stream winds get faster under climate change (Invited) (1046248)
Tiffany Shaw, The University of Chicago, Department of Geophysical Sciences, Chicago, IL, United States and Osamu Miyawaki, University of Chicago, Department of the Geophysical Sciences, Chicago, United States
 
Human influence on the recent weakening of boreal summer circulation via Arctic warming (Invited) (1048570)
Rei Chemke, Weizmann Institute of Science, Rehovot, Israel and Dim Coumou, Vrije Universiteit Amsterdam, Institute for Environmental Studies (IVM), Amsterdam, Netherlands; Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands
 
Atmospheric circulation compounds anthropogenic warming and extreme climate impacts in Europe (1051280)
Davide Faranda, CNRS, Paris Cedex 16, France, Gabriele Messori, Uppsala University, Department of Earth Sciences, Uppsala, Sweden, Aglae Jezequel, LSCE, Gif Sur Yvette, France, Mathieu Vrac, Institut Pierre Simon Laplace, LSCE, Gif-sur-Yvette Cedex, France and Pascal Yiou, LSCE Laboratoire des Sciences du Climat et de l'Environnement, Gif-Sur-Yvette, France
 
2021 Texas Cold Snap: Manifestation of Natural Variability and a Recent Warming Trend (1057970)
Pei-Chun Hsu1, Huang-Hsiung Hsu1, Hao-Jhe Hong1, Ying-Ting Chen1, Yu-Luen Chen1 and Wan-Ling Tseng2, (1)Academia Sinica, Taipei, Taiwan, (2)National Taiwan University, International Degree Program in Climate Change and Sustainable Development, Taipei, Taiwan
 
Spatially larger and less persistent austral summer mid-latitude temperature anomalies by the end of the 21st century (1081204)
Itamar Karbi, Weizmann Institute of Science, Rehovot, Israel and Rei Chemke, Weizmann Institute of Science, Earth and Planetary Sciences, Rehovot, Israel
 
Projected Changes in Atmospheric Ridges Over the Pacific-North American Region Using CMIP6 Models (1091620)
Paul C Loikith1, Deepti Singh2 and Graham Taylor1, (1)Portland State University, Geography, Portland, OR, United States, (2)Washington State University Vancouver, School of the Environment, Vancouver, WA, United States
 
Impact of Arctic-Siberian warming on East Asian heatwaves (1099309)
Jeong-Hun Kim, Kongju National University, Atmospheric Science, Gongju, Korea, Republic of (South), Seong-Joong Kim, Korea Polar Res Inst KORDI, Incheon, Korea, Republic of (South), Joo-Hong Kim, KOPRI Korea Polar Research Institute, Division of Atmospheric Sciences, Incheon, South Korea, Michiya Hayashi, National Institute for Environmental Studies, Earth System Division, Tsukuba, Ibaraki, Japan and Maeng-Ki Kim, Kongju National University, Atmospheric Science, Gongju-si, South Korea
 
Long-term Climatological Understanding of the Rossby Wave Breaking Events Over the Indian sub-continent. (1100706)
Biyo Thomas1, Ravi Kumar Kunchala1, Niranjan Kumar Kondapalli2 and Bhupendra Bahadur Singh3, (1)Indian Institute of Technology Delhi, Centre for Atmospheric Sciences, New Delhi, India, (2)National center for Medium Range Weather Forecasting, Noida, India, (3)Indian Institute of Tropical Meteorology, Pune, India
 
Large-Scale Dynamics associated with Extreme Precipitation in the Northeast United States (1108378)
Gavin Fry, Dartmouth College, Hanover, United States and Bor-Ting Jong, Geophysical Fluid Dynamics Laboratory, Atmospheric and Oceanic Sciences Program, Princeton, United States
 
Atmospheric Waveguides and Their Connections to Quasi-Stationary Waves (1140866)
Rachel H White, University of British Columbia, Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada
 
Strengthening of Arctic Sea Ice Influence on the Occurrence of Extreme Hot Days in East Asia Since the Late 1990s. (1141075)
Yong Han Lee and Sang-Wook Yeh, Hanyang University, Department of Marine Sciences and Convergent Technology, Ansan, South Korea
 
Analysis of Predictability of Long-Lived Rossby Wave Packets in S2S models During Southern Hemisphere Summer (1175529)
Iago Perez, PhD student of Universidad de la República, Montevideo, Montevideo, Uruguay and Marcelo Barreiro, Organization Not Listed, Washington, DC, United States
 
The Intrinsic Relation Between Cyclones, Anticyclones, and Rossby Wave Breaking Events (1185134)
Talia Brodsky (Tamarin), Tel Aviv University, Tel Aviv, Israel and Nili Harnik, Tel-Aviv University, Tel Aviv, Israel
 
The Role of Severe Thunderstorm Jetstreaks over North America on the Intensification of Atmospheric Rivers in the Euro-Atlantic (1188871)
Alexander Lojko, University of Michigan Ann Arbor, Climate and Space Sciences and Engineering, Ann Arbor, MI, United States, Christiane Jablonowski, University of Michigan, Ann Arbor, United States and Ashley Elizabeth Payne, University of Michigan Ann Arbor, Ann Arbor, United States; Tomorrow.io, Boston, United States
 
Identification of Rossby Wave Breaking flavors using Self-Organizing Maps (1190149)
Grant LaChat, Pennsylvania State University Main Campus, Meteorology and Atmospheric Science, University Park, United States, Kevin A Bowley, Pennsylvania State University Main Campus, Meteorology and Atmospheric Science, University Park, PA, United States and Melissa Gervais, Pennsylvania State University, Department of Meteorology and Atmospheric Science, University Park, United States
 
On the Formation of Tropopause Folds and Constituent Gradient Enhancement near Westerly Jets (1197807)
Matthew Hitchman, University of Wisconsin Madison, Madison, WI, United States and Shellie M Rowe, Univ. Wisconsin - Madison, Madison, WI, United States
 
The Role of a Subseasonal Planetary Wave Pattern on US Heat Waves (1198719)
Valentina Castañeda, Purdue University, West Lafayette, IN, United States
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