Session 2A: How and why has the tropical width changed in the past?

Tuesday, July 28, 2015: 1:30 PM-5:30 PM
Primary Convener:  Lorenzo M Polvani, Columbia University, New York, NY, United States
1:30 PM
What do we know about past changes in the latitudinal extent of the tropics? --- An incomplete understanding (Invited) (37481)
Karen Hepler Rosenlof, NOAA ESRL CSD, Boulder, CO, United States
2:10 PM
Late Holocene Expansion/Contraction of the Indo-Pacific Tropical Rain Belt (37445)
Rhawn Flavell Denniston1, Caroline Ummenhofer2, Alan D Wanamaker3, Gabriele Villarini4, Matthew S Lachniet5, Yemane Asmerom6, Victor J Polyak6 and William F Humphreys7, (1)Cornell College, Mt. Vernon, IA, United States, (2)WHOI, Woods Hole, MA, United States, (3)Iowa State University, Ames, IA, United States, (4)University of Iowa, Civil and Environmental Engineering, Iowa City, IA, United States, (5)UNLV-Geosciences, Las Vegas, NV, United States, (6)University of New Mexico Main Campus, Albuquerque, NM, United States, (7)Western Australian Museum, Perth, Australia
2:30 PM
Latitudinal variability and intensity of the South Pacific subtropics over the past 1200 years (37511)
Ian D Goodwin, Stuart A Browning and Thomas Mortlock, Macquarie University, Sydney, Australia
2:50 PM
Robust widening of the Hadley cell from LGM to future (RCP8.5) climate (37437)
Seok-Woo Son, Seo-Yeon Kim and Jung Choi, Seoul National University, Seoul, South Korea
3:10 PM
Break
3:30 PM
Mechanisms for Extreme Hadley Cell Expansion (37299)
Martin P Hoerling1, Xiao-Wei Quan2, Judith Perlwitz1 and Henry F Diaz2, (1)NOAA Boulder, ESRL, Boulder, CO, United States, (2)NOAA Boulder, ESRL/CIRES, Boulder, CO, United States
3:50 PM
Attribution of the Southern Hemisphere Hadley cell widening (37443)
Seung-Ki Min1, Seok-Woo Son2, Yeon-Hee Kim1 and Jung Choi2, (1)POSTECH, Pohang, South Korea, (2)Seoul National University, Seoul, South Korea
4:10 PM
Drivers of the recent tropical expansion in the Southern Hemisphere: Changing SSTs or ozone depletion? (37410)
Darryn W Waugh, Johns Hopkins University, Baltimore, MD, United States, Chaim Garfinkel, Hebrew University of Jerusalem, Jerusalem, Israel and Lorenzo M Polvani, Columbia University, New York, NY, United States
4:30 PM
Intensified ENSO Teleconnection to Extratropical Winter Climate Variabilities after Mid-1990s and Seasonal Prediction (37412)
Daehyun Kang and Myong-In Lee, Ulsan National Institute of Science and Technology, Urban and Environmental Engineering, Ulsan, South Korea
4:50 PM
The relationship between tropical warm pool sea surface temperature and Hadley circulation (37239)
Hanh Nguyen1, Harry Hendon1, Eunpa Lim1, Christopher Lucas1, Eric D Maloney2 and Bertrand Timbal1, (1)Bureau of Meteorology, Melbourne, Australia, (2)Colorado State University, Atmospheric Science, Fort Collins, CO, United States
 
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