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Ref ID: 37231
Ref Type: Journal Article
Authors: Wolf, Annabel
Ersek, Vasile
Braun, Tobias
French, Amanda D.
McGee, David
Bernasconi, Stefano M.
Skiba, Vanessa
Griffiths, Michael L.
Johnson, Kathleen R.
Fohlmeister, Jens
Breitenbach, Sebastian F. M.
Pausata, Francesco S. R.
Tabor, Clay R.
Longman, Jack
Roberts, William H. G.
Chandan, Deepak
Peltier, W. Richard
Salzmann, Ulrich
Limbert, Deborah
Trinh, Hong Quan
Trinh, Anh Duc
Title: Deciphering local and regional hydroclimate resolves contradicting evidence on the Asian monsoon evolution
Date: 2023
Source: Nature Communications
DOI: 10.1038/s41467-023-41373-9
Abstract: The winter and summer monsoons in Southeast Asia are important but highly variable sources of rainfall. Current understanding of the winter monsoon is limited by conflicting proxy observations, resulting from the decoupling of regional atmospheric circulation patterns and local rainfall dynamics. These signals are difficult to decipher in paleoclimate reconstructions. Here, we present a winter monsoon speleothem record from Southeast Asia covering the Holocene and find that winter and summer rainfall changed synchronously, forced by changes in the Pacific and Indian Oceans. In contrast, regional atmospheric circulation shows an inverse relation between winter and summer controlled by seasonal insolation over the Northern Hemisphere. We show that disentangling the local and regional signal in paleoclimate reconstructions is crucial in understanding and projecting winter and summer monsoon variability in Southeast Asia.
Volume: 14: 5697
Page Start: 1
Page End: 14