Millennial to Centennial-scale variability of the Indonesian Throughflow source waters from the Last Glacial Maximum to present
The Indonesian Throughflow (ITF) refers to the oceanic transport of warm water from the Pacific to the Indian Ocean through the Indonesian seaways. It plays an important part in the global ocean and climate regulations. Concerning paleoceanographic research, the exit portal of the ITF has been targeted in many years. However, less is known about past variations in the ITF source waters before entering the Indonesian Seas. This is a significant gap in the overall assessment of the ITF variability in the past and its modification within the Indonesian Seas.
The research objectives are to quantify past sea surface temperature (SST) changes along the main path of the ITF source waters and to reconstruct the full column oceanic transport of the ITF from Last Glacial Maximum to late Holocene. Sediment samples have been recovered from the southern part of Mindanao as the entrance portal of the ITF. Here, I use planktic foraminifera as proxy such as G. ruber, P. obliquiloculata, and benthic foraminifera such as C.wuellerstorfi and Hoeglandina elegans.
In order to get chronological control, Accelerator Mass Spectrometry (AMS) radiocarbon dating has been conducted to establish the age model of the cores. Carbon dating of these shells, or tests, will put these findings throughout the Quaternary period, such as the Last Glacial Maximum (LGM) 20,000 years and more recent events. Other efforts such as stable isotopes and Mg/Ca ratio will allow us to understand the past modification of the entrance way of the ITF. Results are expected to contribute to unravelling the variability of the ITF in the past and be of great interest for the paleoceanographic community.
|Since 2014||Ph.D Student in Marum, University of Bremen, Bremen, Germany||Paleoceanography|
|2009-2011||M.Sc. in School of the Environment, Flinders University, Adelaide, Australia||Ocean and Atmosphere|
|2001-2005||B.Sc. in Marine Science Dept., Diponegoro University, Semarang, Indonesia||Marine Science and Oceanography|