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

Deniz Eroglu, Fiona H. McRobie, Ibrahim Ozken, Thomas Stemler, Karl-Heinz Wyrwoll, Sebastian F. M. Breitenbach, Norbert Marwan, Jürgen Kurths

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36 Citations (Scopus)
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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.

Original languageEnglish
Article number12929
Pages (from-to)1-7
Number of pages7
JournalNature Communications
Volume7
DOIs
Publication statusPublished - 26 Sep 2016

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    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, 1-7. [12929]. https://doi.org/10.1038/ncomms12929