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(Top) Monthly variation of sea surface temperature (source ERSST dataset) and air temperature (source BMG). (bottom) Measured Sr/Ca from Jukung coral in monthly resolution.
Source publication
Sr/Ca has been analyzed from coral core from the Seribu Islands reef complex i.e Jukung Island. SST from ERSST dataset and air temperature measured at Jakarta is used for Sr/Ca calibration. The results show that Jukung Island coral Sr/Ca correlates better with SST than with air temperature. A comparison between the Sr/Ca records with the Nino 3.4 i...
Contexts in source publication
Context 1
... local measurements of air temperature at Jakarta weather station is used in this study (from June 1992 to September 2005) which is obtained from Badan Meteorologi, Klimatologi dan Geofisika (BMKG). Figure 1 shows both dataset for the period 1992-2005. The Extended Reconstructed Sea Surface Temperature (ERSST) data are averaged over a grid of 5°-6°S, 105°-106°E. ...
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According to the Intergovernmental Panel on Climate Change 5th Assessment Report, or IPCC 5AR (2013), sea level is rise (SLR) could be in the order of 26 to 98 cm by 2100. However, more onerous predictions, such as those set forth in recent probabilistic process-based models by Kopp et al. (2017), or Bars et al., (2017), indicate that SLR could be...
Citations
... Perairan kepulauan Seribu yang memiliki bioderversiti laut yang tinggi yang dekat dengan Jakarta dan sekitarnya yang merupakan kota megapolitan tentu semakin mendapat tekanan lingkungan seperti dengan adanya pencemaran Pb di perairan lautnya. Seiring perkembangan industri di Jakarta dan juga transportasi berkontribusi pada konsentrasi polusi Pb diwilayah tersebut (Ostro, 1994 Cahyarini & Zinke 2010). Dalam studi ini digunakan conto karang Porites bagian paling atas dari inti bor karang Bidadari (BI) dan Jukung (JU). ...
http://jrisetgeotam.com/index.php/jrisgeotam/article/view/259/pdf
... In contrast to the above, on monthly time scales the relationship between Sr/Ca and AirT is stronger for Bidadari (R = 0.51, regression slope = −0.043, p b 0.0001) (Cahyarini and Zinke, 2009) than Jukung (R = 0.39, regression slope = − 0.03, p b 0.0001) (Cahyarini and Zinke, 2010). On annual mean time scales the correlation between Jukung Sr/Ca and SST (R = 0.37, regression slope = − 0.04, p b 0.0001) is also stronger than between Bidadari Sr/Ca and SST (R = 0.2, regression slope = 0.03, p b 0.0001). ...
... In contrast to the above, on monthly time scales the relationship between Sr/Ca and AirT is stronger for Bidadari (R = 0.51, regression slope = −0.043, p b 0.0001) (Cahyarini and Zinke, 2009) than Jukung (R = 0.39, regression slope = − 0.03, p b 0.0001) (Cahyarini and Zinke, 2010). On annual mean time scales the correlation between Jukung Sr/Ca and SST (R = 0.37, regression slope = − 0.04, p b 0.0001) is also stronger than between Bidadari Sr/Ca and SST (R = 0.2, regression slope = 0.03, p b 0.0001). ...
... A previous study from Cahyarini et al. (2008) showed Sr/ Ca records from Jukung Island which indicates clearly seasonal variation on the sea surface temperature (SST). Coral Sr/Ca from inshore island in the Seribu Island complex shows the influence of air temperature rather than SST (Cahyarini and Zinke, 2010). Recently, results from modern Timor Porites corals demonstrated that coral Sr/ Ca is a good proxy for temperature (Cahyarini et al., 2014). ...
DOI:10.17014/ijog.2.1.43-51Indonesia is an interesting and important location for a climate study, because it is located in the centre of a warm pool and adjacent to Pacific and Indian Oceans. Long records of climate data are required from this region to more understand the climate variability and the response of global warming. Geochemical proxies derived from Porites corals are believed to be an excellent climate recorder. Sr/Ca content in Porites corals from Kendari, Southeast Sulawesi shows that seasonal variability of SST is resolved by coral Sr/Ca from this region. The monsoon strongly influences reconstructed SST from coral Sr/Ca. Coral SST shows strong power spectrum at the 2.75 year period. Annual to interannual coral SST signal is stronger than the decadal to interdecadal signal. Both ENSO and IOD influence coral SST at two-month and three-month lags respectively.
... Perubahan kandungan Sr/Ca dalam percontoh koral terhadap SPL berkisar dari -0,04 sampai 0,08 mmol/ mol/ºC (Cahyarini drr., 2009;Mitsuguchi drr., 2002;de Villier, 1994). Dalam studi ini digunakan slope regresi -0,04 mmol/mol/ºC untuk rekonstruksi SPL berdasarkan Sr/Ca koral, dengan pertimbang an bahwa dari hasil kalibrasi Sr/Ca dengan SPL dari beberapa wilayah lainnya di Indonesia (yaitu Timor dan Kepulauan Seribu) dihasilkan slope regresi -0,04 (Cahyarini drr., 2008;Cahyarini dan Zinke, 2010). ...
DOI: 10.17014/ijog.v6i3.121Sea surface temperature (SST) is one of the important parameters for (paleo) climate studies. The long time series of SST data are required to understand more the climate change. Coral geochemical proxy such as Sr/Ca overcomes this problem. Coral can provide long time series of climate data continuously from present till hundreds years ago, even fossil (dead) coral can do it till thousand years ago. In this study, Sr/Ca content of Porites coral within 10 m deep from Labuan Bajo, Simeulue Island was analyzed to reconstruct SST. Coral Sr/Ca shows a strong correlation with local SST in seasonal scale as well as in the annual mean scale. Reconstructed SST data show that the monsoon between 1993 2007 strongly influence the SST variation in the Simeulue region. It supposed that the seasonal variation signal strongly influence local SST than the annual mean signal such as El Nino.
