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DESCRIPTION:Atmospheric and Oceanic Sciences Departmental Seminar Series\n
 \npresents\n\nWhat Role Do Mountains Play in Shaping Mean and Extreme Hydr
 oclimate? Lessons from a Tropical Cyclone-Permitting AOGCM\n\na talk by\n
 \nJane Baldwin\n	Postdoctoral Research Scientist\n	Lamont-Doherty Earth Obse
 rvatory\, Ocean and Climate Physics\n	Columbia University\, Earth Institute
 \n\nA classic question in atmospheric dynamics is what role mountains play
  in shaping both local and remote climate. Some of the first studies perfo
 rmed with Global Climate Models (GCMs) by Syukuro Manabe and colleagues in
 vestigated this question\, selectively flattening large-scale orographic f
 eatures (such as the Tibetan Plateau) to investigate effects on the statio
 nary wave pattern and monsoons. Since these early studies\, GCMs have incr
 eased significantly in resolution and complexity\, now allowing dynamic co
 upling between the atmosphere and ocean and simulating various climatic ex
 tremes with much higher fidelity. Here I revisit the effect of mountains o
 n climate using the GFDL GCM CM2.5-FLOR\, which is fully atmosphere-ocean 
 coupled with a 50 km atmospheric/land resolution that permits the simulati
 on of tropical cyclones. I explore the influence of three different orogra
 phic features on regional climate: 1) the Tian Shan mountains on the clima
 tology of Asian extratropical deserts\, 2) the Tibetan Plateau (and relate
 d orography) on the Western North Pacific\, and 3) gaps in the topography 
 of Central America on the tropical East Pacific. Previously unappreciated 
 influences of these mountains on the climatology of precipitation and the 
 spatial distribution of tropical cyclones will be demonstrated. Additional
 ly\, I will show that relatively small orographic features can have quite 
 large climatic influences contingent on their placement relative to the la
 rger-scale circulation.\n\nMonday Oct 28/ 3:30 PM/ Burnside Hall/ Room 934
 \n
DTSTART:20191028T193000Z
DTEND:20191028T210000Z
LOCATION:Room 934
SUMMARY:What Role Do Mountains Play in Shaping Mean and Extreme Hydroclimat
 e? Lessons from a Tropical Cyclone-Permitting AOGCM
URL:https://www.mcgill.ca/meteo/channels/event/what-role-do-mountains-play-
 shaping-mean-and-extreme-hydroclimate-lessons-tropical-cyclone-301819
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