Deciphering local and regional hydroclimate resolves contradicting evidence on 
the Asian monsoon evolution

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

doi:10.1038/s41467-023-41373-9

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Deciphering local and regional hydroclimate resolves contradicting evidence on the Asian monsoon evolution

Urheber*innen

Wolf, Annabel
External Organizations;

Ersek, Vasile
External Organizations;

/persons/resource/tobraun

Braun, Tobias
Potsdam Institute for Climate Impact Research;

French, Amanda D.
External Organizations;

McGee, David
External Organizations;

Bernasconi, Stefano M.
External Organizations;

/persons/resource/vanessa.skiba

Skiba, Vanessa
Potsdam Institute for Climate Impact Research;

Griffiths, Michael L.
External Organizations;

Johnson, Kathleen R.
External Organizations;

Fohlmeister, Jens
External Organizations;

Breitenbach, Sebastian F. M.
External Organizations;

Pausata, Francesco S. R.
External Organizations;

Tabor, Clay R.
External Organizations;

Longman, Jack
External Organizations;

Roberts, William H. G.
External Organizations;

Chandan, Deepak
External Organizations;

Peltier, W. Richard
External Organizations;

Salzmann, Ulrich
External Organizations;

Limbert, Deborah
External Organizations;

Trinh, Hong Quan
External Organizations;

Trinh, Anh Duc
External Organizations;

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Zitation

Wolf, A., Ersek, V., Braun, T., French, A. D., McGee, D., Bernasconi, S. M., Skiba, V., Griffiths, M. L., Johnson, K. R., Fohlmeister, J., Breitenbach, S. F. M., Pausata, F. S. R., Tabor, C. R., Longman, J., Roberts, W. H. G., Chandan, D., Peltier, W. R., Salzmann, U., Limbert, D., Trinh, H. Q., Trinh, A. D. (2023): Deciphering local and regional hydroclimate resolves contradicting evidence on the Asian monsoon evolution. - Nature Communications, 14, 5697.
https://doi.org/10.1038/s41467-023-41373-9

Zitierlink: https://publications.pik-potsdam.de/pubman/item/item_29386

Zusammenfassung

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.