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

D. Eroglu, Fiona H. McRobie, I. Ozken, Thomas Stemler, Karl-Heinz H. Wyrwoll, S.F.M. Breitenbach, N. Marwan, J. Kurths

    Research output: Contribution to journalArticle

    44 Citations (Scopus)

    Abstract

    © The Author(s) 2016.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
    Number of pages7
    JournalNature Communications
    Volume7
    DOIs
    Publication statusPublished - 2016

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