Open AccessCoral Sr/Ca-based sea surface temperature variability at Seribu and Timor islands waters
Author(s) -
Sri Yudawati Cahyarini,
Marfasran Hendrizan,
Dwi Amanda Utami,
Alina Blume
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/618/1/012020
Subject(s) - coral , sea surface temperature , oceanography , indian ocean dipole , climatology , el niño southern oscillation , pacific decadal oscillation , environmental science , climate change , geology
Climate phenomena which is happened in the Pacific and Indian oceans i.e. El Niño Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) influence Indonesian climate. To understand behaviour of climate phenomena and its impact to Indonesian climate it is required paleoclimate data which provide long time series climate data back to hundred till thousands year. Sea surface temperature (SST) is one of important climate parameter. Coral Sr/Ca is convinced as coral paleo-thermometer. In this study, the available coral Sr/Ca is used to reconstruct past SST variability (Coral SST). Univariate linear regression between coral Sr/Ca and SST is used to reconstruct past SST variability. To understand how the climate phenomena influence the SST variability, the coral Sr/Ca is correlated with the Nino 3.4 and IOD indices. The result shows that the influence of IOD and ENSO is difference between sites. At Seribu island coral SST shows that SST is influenced by IOD rather than ENSO, while from Timor coral SST shows that Indian Ocean Dipole (IOD) and ENSO influences SST.