ENSO flavors in a tree-ring δ<sup>18</sup>O record of <i>Tectona grandis</i> from Indonesia


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karina.schollaen [ at ] awi.de

Abstract

Indonesia's climate is dominated by the equatorial monsoon system, and has been linked to El Niño–Southern Oscillation (ENSO) events that often result in extensive droughts and floods over the Indonesian archipelago. In this study we investigate ENSO-related signals in a tree-ring δ18O record (1900–2007) of Javanese teak. Our results reveal a clear influence of Warm Pool (central Pacific) El Niño events on Javanese tree-ring δ18O, and no clear signal of Cold Tongue (eastern Pacific) El Niño events. These results are consistent with the distinct impacts of the two ENSO flavors on Javanese precipitation, and illustrate the importance of considering ENSO flavors when interpreting palaeoclimate proxy records in the tropics.



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ISI/Scopus peer-reviewed
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Published
Eprint ID
37149
DOI 10.5194/cpd-10-3965-2014

Cite as
Schollaen, K. , Karamperidou, C. , Krusic, P. J. , Cook, E. R. and Helle, G. (2014): ENSO flavors in a tree-ring δ<sup>18</sup>O record of <i>Tectona grandis</i> from Indonesia , Climate of the Past Discussions, 10 (5), pp. 3965-3987 . doi: 10.5194/cpd-10-3965-2014


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