Impact of Multidecadal Variability in Atlantic SST on Winter Atmospheric Blocking

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Dr. Young-Oh Kwon

Senior Scientist

Woods Hole Oceanographic Institution

Monday October 19, 2020, 2 PM



There exists a coherent multidecadal variability between North Atlantic atmospheric blocking frequency and the SST Atlantic Multidecadal Variability (AMV). Previous studies mostly focused on how the atmospheric circulation associated with the blocking variability may drive the ocean circulation variability. In this talk, I discuss the role of AMV in modulating blocking variability on multidecadal times scales. In addition, I will present how such relationship render a significant multi-year predictability of the blocking over the high latitude North Atlantic in a state-of-the-art large ensemble decadal prediction experiment.


Young-Oh Kwon is a Senior Scientist in the Physical Oceanography Department at the Woods Hole Oceanographic Institution. Prior to that he was a postdoc in the Climate and Global Dynamics Division at the National Center for Atmospheric Research. His Ph.D. in physical oceanography is from the School of Oceanography at the University of Washington. His research primarily revolves around one question, “what is the role of the ocean in climate?” More specifically, his research focuses on the variability in the ocean and atmosphere, and the interaction between the two in the extratropics on time scales of a few years to several decades.

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Oct 19 2020


UMD WebEx (10/19)


John Xun Yang