Comparison of Simulated and Observed Current Velocities in Karimata and Gaspar Straits

Mukti Trenggono, Bayu Priyono, Rizqi Rizaldi Hidayat, Teguh Agustiadi

Abstract


Karimata and Gaspar Straits were the connector between the South China Sea and Indonesian Seas, which played a role in transporting the Indonesian Through Flow. The current velocities in both straits were studied by comparing outputs from the INDO12 physical ocean model simulation against observation results from the South China Sea-Indonesian Seas Transport Exchange (SITE) program. In general, the magnitudes of the zonal and meridional model current velocities are weaker than observations. Notably, the B1 and B4 moorings show uncertain model values most of the time. It is understandable considering that B1 and B4 moorings are located in a narrow strait (Gaspar Strait), near the coasts. On the contrary, B2 and B3 moorings show comparable magnitude to the two zonal and meridional components' observations

 

Keywords: Karimata Strait, Current Velocities, INDO12, SITE Program

Full Text:

PDF

References


Allen, J.I., Holt, J.S., Blackford, J., Proctor, J. 2007. Error quantification of a high-resolution coupled hydrodynamicecosystem coastal-ocean model: Part 2. Chlorophyll-a, nutrients and SPM. Journal of Marine Systems 68 (2007) 381 – 404. doi:10.1016/j.jmarsys.2007.01.005

Fang, G., Wang, Y., Wei, Z., Fang, Y., Qiao, F., Hu, X. 2009. Interocean circulation and heat and freshwater budgets of the South China Sea based on a numerical model. Dyn. Atmos. Oceans 47, 55–72. http://dx.doi.org/10.1016/j.dynatmoce.2008.09.003.

Fang, G., Susanto, R.D., Wirasantosa, S., Qiao, F., Supangat, A., Fan, B., Wei, Z., Sulistiyo, B., Li, S. 2010. Volume, heat, and freshwater transports from the South China Sea to Indonesian seas in the boreal winter of 2007–2008. Journal of Geophysical Research, Vol. 115, C12020, doi:10.1029/2010JC006225, 2010.

Ffield, A., Robertson, R. 2008. Temperature fine structure in the Indonesian Seas, J. Geophys. Res., 113, C09009, doi:10.1029/2006JC003864, 2008.

He, Z., Feng, M., Wang, D., Slawinski, D. 2015. Contribution of the Karimata Strait transport to the Indonesian Throughflow as seen from a data assimilation model. Continental Shelf Research 92. (2015) 16–22. DOI: http://dx.doi.org/10.1016/j.csr.2014.10.007.

Lebedev, K. V., and Yaremchuk, M. I. 2000. A diagnostic study of the Indonesian Throughflow, J. Geophys. Res., 105(C5), 11,243–11,258. Doi:10.1029/2000JC900015.

Metzger, E. J., and Hurlburt, H.E. 1996. Coupled dynamics of the South China Sea, the Sulu Sea, and the Pacific Ocean, J. Geophys. Res., 101(C5), 12,331–12,352, doi:10.1029/95JC03861.

OSPAR Commission, 1998. Report of the Modelling Workshop on Eutrophication Issues. 5–8 November 1996. Den Haag, The Netherlands. OSPAR Report, 86 pp.

Radach, G., Moll, A., 2006. Review of three-dimensional ecological modelling related to the North Sea shelf system. Part II: model validation and data needs. Oceanog. Mar. Biol. 44, 1–60 (An Annual Review).

Tozuka, T., Qu, T., Masumoto, Y., Yamagata, T. 2009. Impacts of the South China Sea Throughflow on seasonal and interannual variations of the Indonesian Throughflow. Dyn. Atmos. Oceans 47, 73–85. http://dx.doi.org/10.1016/j. dynatmoce.2008.09.001.

Tranchant, B., Reffray, G., Greiner, E., Nugroho, D., Koch-Larrouy, A., Gaspar, P. 2016. Evaluation of an operational ocean model configuration at 1/12◦ spatial resolution for the Indonesian seas (NEMO2.3/INDO12) – Part 1: Ocean physics. Geosci. Model Dev., 9, 1037–1064, 2016. doi:10.5194/gmd-9-1037-2016.

Wang, Y., Tan, W., Xu, T., Li, S., Susanto, R.D., Agustiadi, T., Trenggono, M., Wei, Z. 2019/. Seasonal variation of water transport through the Karimata Strait. Acta Oceanol. Sin., 2019, Vol. 38, No. 4, P. 47–57. DOI: https://doi.org/10.1007/s13131-018-1224-2

Wei, Z., Fang, G., Susanto, R.D., Adi, T.R., Fan, B., Setiawan, A., Li, S., Wang, Y., Gao, X. 2016. Tidal elevation, current, and energy flux in the area between the South China Sea and Java Sea. Ocean Sci., 12, 517–531, 2016. doi:10.5194/os-12-517-2016

Wyrtki, Klaus. 1961. Physical oceanography of Southeast Asian waters, in NAGA Report: Scientific Results of Marine Investigations of the South China Sea and Gulf of Thailand, vol. 2, Scripps Inst. of Oceanogr., La Jolla, Calif.

Yaremchuk, M., McCreary, J., Yu, Z., and Furue, R. 2009. The South China Sea throughflow retrieved from climatological data. J. Phys. Oceanogr. 39, 753–767.




DOI: http://dx.doi.org/10.20884/1.oa.2020.16.3.853

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.

 

Lisensi Creative Commons

Omni-Akuatika de Fisheries and Marine Science Faculty - Jenderal Soedirman University est mis à disposition selon les termes de la licence Creative Commons Attribution 4.0 International.

Fondé(e) sur une œuvre à www.ojs.omniakuatika.net.
Les autorisations au-delà du champ de cette licence peuvent être obtenues à www.ojs.omniakuatika.net.