A11K:
The Year of Tropics-Midlatitude Interactions and Teleconnections Posters

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Session ID#: 12622

Session Description:
Tropical-extratropical interactions and the resulting teleconnections have emerged as an untapped source of predictability on time scales between weather and climate. Tropical heating associated with organized convection, including the Madden-Julian Oscillation, strongly impacts extra-tropical circulation subseasonal variability. Tropical convection itself may be excited/maintained by extra-tropical fluctuations. Improving the prediction of mid-latitude variability on intraseasonal timescales requires a new integrated understanding of the processes involved in tropical-extratropical interactions. Activities supporting this endeavor should be enhanced during the proposed Year of Tropics-Midlatitudes Interactions and Teleconnections (YTMIT).

This session invites contributions supporting YTMIT, focused on: (a) recent advancements in assessing the intraseasonal tropical-extratropical interactions and teleconnections in observations, (b) theoretical understanding of mechanisms underlying the interactions between the tropical and midlatitude regions and the resulting teleconnections on intraseasonal time scales, and (c) the impact of teleconnections on prediction skill of Week 3 to 4 forecasts.

Primary Convener:  Cristiana Stan, George Mason University Fairfax, Atmospheric, Oceanic and Earth Sciences, Fairfax, VA, United States
Conveners:  David M Straus, George Mason University Fairfax, AOES, Fairfax, VA, United States and Hai Lin, Meteorological Research Division, Environment and Climate Change Canada, Dorval, QC, Canada
Chairs:  Cristiana Stan, George Mason University Fairfax, Atmospheric, Oceanic and Earth Sciences, Fairfax, VA, United States and David M Straus, George Mason University Fairfax, AOES, Fairfax, VA, United States
OSPA Liaison:  Cristiana Stan, George Mason University Fairfax, Atmospheric, Oceanic and Earth Sciences, Fairfax, VA, United States
Index Terms:

3319 General circulation [ATMOSPHERIC PROCESSES]
3362 Stratosphere/troposphere interactions [ATMOSPHERIC PROCESSES]
3367 Theoretical modeling [ATMOSPHERIC PROCESSES]
3373 Tropical dynamics [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

The Extratropical Influence of the Madden-Julian Oscillation on Wintertime Blocking (121288)
Stephanie A Henderson1, Eric D Maloney1 and Elizabeth A Barnes2, (1)Colorado State University, Atmospheric Science, Fort Collins, United States, (2)Colorado State University, Department of Atmospheric Science, Fort Collins, United States
The seasonality of atmospheric teleconnections between ENSO and the Amundsen sea low (127667)
Scott Yiu, University of Cambridge, Cambridge, United Kingdom, Amanda Maycock, School of Earth and Environment, University of Leeds, Leeds, United Kingdom, Luke Abraham, University of Cambridge, Centre for Atmospheric Science, Yusuf Hamied Department of Chemistry, Cambridge, United Kingdom and John Adrian Pyle, Univ Cambridge, Cambridge, United Kingdom
The Relationship Between the Boreal Summer Intraseasonal Oscillation and Eastern US Extreme Heat Events (128918)
Andrea M Jenney, Colorado State University, Atmospheric Science, Fort Collins, CO, United States and Prof. David A Randall, Colorado State University, Fort Collins, United States
Formation mechanisms of PNA-like teleconnection pattern in response to the Madden-Julian oscillation (129814)
Kyong-Hwan Seo, Research Center for Climate Sciences, Pusan National University, Busan, South Korea and Hyun Ju Lee, Pusan National University, Busan, Korea, Republic of (South)
Seasonal and Intraseasonal Oscillations in the Extratropics and Interaction with the Tropics (140035)
Venkat Krishnamurthy, George Mason University Fairfax, Fairfax, VA, United States and Cristiana Stan, George Mason University Fairfax, Atmospheric, Oceanic and Earth Sciences, Fairfax, VA, United States
An extratropical influence on Australian monsoon bursts (153773)
Sugata Narsey1, Christian Jakob2, Duncan Ackerley3 and Michael J Reeder2, (1)Monash University, Earth, Atmosphere and Environment, Melbourne, VIC, Australia, (2)Monash University, School of Earth, Atmosphere and Environment, Clayton, VIC, Australia, (3)Monash University, Melbourne, Australia
Evaluating the subseasonal impacts of the MJO and BSISO in the East Asian extended summer (153812)
Chueh-Hsin Chang, National Taiwan University, Taipei, Taiwan, Nathaniel C Johnson, NOAA/Geophysical Fluid Dynamics Laboratory, Princeton, United States, Changhyun Yoo, Ewha Womans University, Climate and Energy Systems Engineering, Seoul, South Korea and Chung Hsiung Sui, National Taiwan University, Atmospheric Sciences, Taipei, Taiwan
Sub-Seasonal Predictability And Dynamical Processes: Long-Range Interactions (Invited) (118866)
Gilbert Brunet, Environment Canada Dorval, Dorval, QC, Canada

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