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Journal Article

See-saw relationship of the Holocene East Asian-Australian summer monsoon

Authors
/persons/resource/deniz.eroglu

Eroglu,  Deniz
Potsdam Institute for Climate Impact Research;

McRobie,  F. H.
Potsdam Institute for Climate Impact Research and Cooperation Partners;

/persons/resource/ozken.ibrahim

Ozken,  Ibrahim
Potsdam Institute for Climate Impact Research;

Stemler,  T.
Potsdam Institute for Climate Impact Research and Cooperation Partners;

Wyrwoll,  K.-H.
Potsdam Institute for Climate Impact Research and Cooperation Partners;

Breitenbach,  S. F. M.
Potsdam Institute for Climate Impact Research and Cooperation Partners;

/persons/resource/Marwan

Marwan,  Norbert
Potsdam Institute for Climate Impact Research;

/persons/resource/Juergen.Kurths

Kurths,  Jürgen
Potsdam Institute for Climate Impact Research;

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7331oa.pdf
(Publisher version), 665KB

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Citation

Eroglu, D., McRobie, F. H., Ozken, I., Stemler, T., Wyrwoll, K.-H., Breitenbach, S. F. M., Marwan, N., Kurths, J. (2016): See-saw relationship of the Holocene East Asian-Australian summer monsoon. - Nature Communications, 7, 12929.
https://doi.org/10.1038/ncomms12929


Cite as: https://publications.pik-potsdam.de/pubman/item/item_21149
Abstract
The East Asian–Indonesian–Australian summer monsoon (EAIASM) links the Earth’s hemispheres and provides a heat source that drives global circulation. At seasonal and inter-seasonal timescales, the summer monsoon of one hemisphere is linked via outflows from the winter monsoon of the opposing hemisphere. Long-term phase relationships between the East Asian summer monsoon (EASM) and the Indonesian–Australian summer monsoon (IASM) are poorly understood, raising questions of long-term adjustments to future greenhouse-triggered climate change and whether these changes could ‘lock in’ possible IASM and EASM phase relationships in a region dependent on monsoonal rainfall. Here we show that a newly developed nonlinear time series analysis technique allows confident identification of strong versus weak monsoon phases at millennial to sub-centennial timescales. We find a see–saw relationship over the last 9,000 years—with strong and weak monsoons opposingly phased and triggered by solar variations. Our results provide insights into centennial- to millennial-scale relationships within the wider EAIASM regime.