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Journal Article

ENSO flavors in a tree-ring δ18O record of Tectona grandis from Indonesia

Authors
/persons/resource/kscholla

Schollaen,  Karina
5.2 Climate Dynamics and Landscape Evolution, 5.0 Earth Surface Processes, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Karamperidou,  C.
External Organizations;

Krusic,  P.
External Organizations;

Cook,  E.
External Organizations;

/persons/resource/ghelle

Helle,  G.
5.2 Climate Dynamics and Landscape Evolution, 5.0 Earth Surface Processes, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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1322053.pdf
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Citation

Schollaen, K., Karamperidou, C., Krusic, P., Cook, E., Helle, G. (2015): ENSO flavors in a tree-ring δ18O record of Tectona grandis from Indonesia. - Climate of the Past, 11, 10, 1325-1333.
https://doi.org/10.5194/cp-11-1325-2015


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_1322053
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, as well as the potential of palaeoclimate proxy records from appropriately selected tropical regions for reconstructing past variability of ENSO flavors.