[Seminar on Jan 5] Interdecadal modulation of El Nino teleconnection on monsoon Asia climate over the past five centuries

Date:2018-01-03    

Dr. Jinbao Li

University of Hong Kong

No. 303, Building 303

14:30, Jan 5, 2018 

The El Ni?o influence on monsoon Asia climate weakened during the mid-20th century and strenthened substantially after the late 1970s. Exploring the nature of such an interdecadal variation is constrained by short instrumental records. Here we synthesize the Indo-Pacific tree-rings and coral records to reconstruct monsoon Asia temperature and moisture change during the past five centuries, and show that the interdecadal modulation of El Ni?o teleconnection on monsoon Asia climate is a robust feature beyond the instrumenal era. Comparison with proxy El Ni?o records indicates that the El Ni?o-monsoon Asia climate teleconnection is controlled by interdecadal changes in ENSO variance, with strong (weak) teleconnection in periods of high (low) variance, respectively.

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