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    Coral Sr/Ca-based sea surface temperature and air temperature variability from the inshore and offshore corals in the Seribu Islands, Indonesia

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    Authors
    Cahyarini, S.
    Zinke, Jens
    Troelstra, S.
    Suharsono
    Aldrian, E.
    Hoeksema, B.
    Date
    2016
    Type
    Journal Article
    
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    Citation
    Cahyarini, S. and Zinke, J. and Troelstra, S. and Suharsono and Aldrian, E. and Hoeksema, B. 2016. Coral Sr/Ca-based sea surface temperature and air temperature variability from the inshore and offshore corals in the Seribu Islands, Indonesia. Marine Pollution Bulletin. 110 (2): pp. 694-700.
    Source Title
    Marine Pollution Bulletin
    DOI
    10.1016/j.marpolbul.2016.04.052
    ISSN
    0025-326X
    School
    Department of Environment and Agriculture
    URI
    http://hdl.handle.net/20.500.11937/8335
    Collection
    • Curtin Research Publications
    Abstract

    The ability of massive Porites corals to faithfully record temperature is assessed. Porites corals from Kepulauan Seribu were sampled from one inshore and one offshore site and analyzed for their Sr/Ca variation. The results show that Sr/Ca of the offshore coral tracked SST, while Sr/Ca variation of the inshore coral tracked ambient air temperature. In particular, the inshore SST variation is related to air temperature anomalies of the urban center of Jakarta. The latter we relate to air—sea interactions modifying inshore SST associated with the land-sea breeze mechanism and/or monsoonal circulation. The correlation pattern of monthly coral Sr/Ca with the Niño3.4 index and SEIO-SST reveals that corals in the Seribu islands region respond differently to remote forcing. An opposite response is observed for inshore and offshore corals in response to El Niño onset, yet similar to El Niño mature phase (December to February). SEIO SSTs co-vary strongly with SST and air temperature variability across the Seribu island reef complex. The results of this study clearly indicate that locations of coral proxy record in Indonesia need to be chosen carefully in order to identify the seasonal climate response to local and remote climate and anthropogenic forcing.

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