Structure and Variability of Indonesian Throughflow in Labani Canal

Rizqi Rizaldi Hidayat, Mukti Trenggono


Libani Canal is one of the areas which the flows water masses of the Pacific Ocean toward Indonesian seas. The existence of Mindanao current that affects an input of Indonesian Through-flow should be predicted. The influence of climate change on large scale circulation will affect the variations of physical condition. This study focused to investigate the variation of meridional Libani Current at 30 levels deep based on INDESO models data from January 2007 to January 2014. An area of interested was located at 4.16 °S and 117.92 - 119.42 °E. The results showed a strong current average reaches 0.5 m/s with a north-south orientation as the impact of bottom topography. Variations of current through Fourier analysis showed the annual and inter-annual fluctuations in the 365 days and 120-200 days related impacts strong El-Nino in 2009-2010. Spectrum energy density peaks in the 3 days and 53 days period that indicated as the impact of intra-seasonal variations.

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Atmadipoera A.S., Molcard, R., Madec, G., Wijffels, S., Koch-Larrouy, A., Jaya, I., Supangat, A., Sprintall, J. 2009. Characteristics and variability of the Indonesian throughflow water at the outflow straits. Deep-Sea Research I 56, 1942-1954.

Fieux, M., Andrie, C., Charriaud, E., Ilahude, A.G., Metzl, N., Molcard, R., Swallow, J.C. 1996. Hydrological and chlorofluoromethane measurements of the Indonesian throughflow entering the Indian Ocean. Journal of Geophysical Research 101, 12433-12454.

Gordon A.L. and R.A. Fine. 1996. Pathways of water between the Pacific and Indian Ocean in the Indonesian Sea. Nature. 379: 146-149

Gordon, A.L., Susanto, R.D., Vranes, K. 2003. Cool Indonesian throughflow as a consequence of restricted surface layer flow. Nature 425, 824-828.

Gordon, A., Sprintall, J., Van Aken, H.M., Susanto, R.D., Molcard, R., Ffield, A., Pranowo, W., Wirasantosa, S., Wijffels, S. 2010. The Indonesian throughflow during 2004-2006 as observed by the INSTANT program. Dynamics of Atmospheres and Oceans 50(2), 115-128.

Horhoruw, S.M., Atmadipoera, A.S., Purba, M., Purwandana, A. 2015. Struktur arus dan variasi spasial Arlindo di Selat Makassar dari EWIN 2013. Ilmu Kelautan 20(2), 87-100.

Ilahude A.G., Gordon, A.L. 1996. Thermocline stratification within the Indonesian Seas. Journal of Geophysical Research Atmospheres 101, 12401-12409.

Li, M., Gordon, A.L., Wei, J., Gruenburg, L.K., Jiang, G. 2018. Multi-decadal timeseries of the Indonesian throughflow. Dynamics of Atmospheres and Oceans 81, 84-95.

Madec, G., Delecluse, P., Imbard, M., and Lévy, C. 1998. OPA 8.1 Ocean General Circulation Model reference manual. Note du Pole de modélisation. Institut Pierre-Simon Laplace (IPSL). France. 91pp.

Nurjaya, I.W. & Surbakti, H. 2009. Studi Pendahuluan Kondisi Oseanografi Fisik pada Musim Barat di Perairan Pantai Timur Kalimantan antara Balikpapan dan Delta Mahakam. Jurnal Kelautan Nasional 1, 140-150.

Parker, M. 2017. Discrete and Fast Fourier Transforms. In: Digital Signal Processing 101 (Second Edition). Newnes Newton, MA, USA.

Prihatiningsih, I., Jaya, I., Atmadipoera, A.S., Zuraida, R. 2019. Turbulent mixing of water masses in Selayar Slope - Southern Makassar Strait. Proceedings of LISAT-FSEM 2018. Bogor: 6-7 November 2018.

Sprintall, J., Gordon, A.L., Koch-Larrouy, A., Lee, T., Potemra, J.T., Pujiana, K., Wijffels, S.E. 2014. The Indonesian seas and their role in the coupled ocean-climate system. Nature Geoscience 7:487-492.

Susanto, R.D., Ffield, A., Gordon, A.L., Adi, T.R. 2012. Variability of Indonesian throughflow within Makassar Strait 2004-2009. Journal of Geophysical Research Atmospheres 117, 1-16.

Thomson, R.E., Emery, W.J., 2014. Data Analysis Methods in Physical Oceanography. Elsevier, London. 728 pp.

Tranchant, B., Reffray, G., Greiner, E., Nugroho, D., Saint-agne, R. 2015. Evaluation of an operational ocean model configuration at 1/12° spatial resolution for the Indonesian seas Part I. Ocean physics, 1-49.

Wyrtki, K. 1961. Scientific Results of Marine Invesigations of the South China Sea and the Gulf of Thailand 1959-1961. Naga Report Volume 2.

Wyrtki, K. 1987. Indonesian Through Flow and the Associated Pressure Gradient. Journal of Geophysical Research Atmospheres 92:12941-12946.


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