* Corresponding Author
Current Dynamics and Water Column Stability in Indonesian Waters Based on Hydrodynamics Model
https://doi.org/10.22146/ijg.58091 Engki Andri Kisnarti(1*), Nining Sari Ningsih(2), Mutiara R Putri(3), Nani Hendriati(4)
(1) Faculty of Earth Sciences and Technology, Institute Technology of Bandung
(2) Faculty of Earth Sciences and Technology, Institute Technology of Bandung
(3) Faculty of Earth Sciences and Technology, Institute Technology of Bandung
(4) Coordinating Ministry for Maritime and Investment Affairs
(*) Corresponding Author
Abstract
Monsoon currents and Indonesian Throughflow (ITF) have an essential role in the current Indonesian water system. The movement of current/water masses with non-uniform bathymetric conditions will affect the water column's stability in Indonesian waters. Therefore, this study aims to obtain the current dynamics and stability of the water column in Indonesian waters, based on a hydrodynamic model termed the HAMburg Shelf Ocean Model (HAMSOM). The results of the model are data of current, temperature, salinity, and density. The data is used to study the dynamics of seawater in Indonesian waters. The water column's stability is examined by calculating the Brunt Väisälä frequency values (N2) based on the density data generated. The results show that monsoon currents were stronger in shallow waters because the stratification did not change. Meanwhile, the maximum N2 value occurs at the surface to a depth of 80-100 m with a range of 0.0000-0.0006 cycle s-1. The study also produces an understanding of the condition of Indonesia's stability (N2 positive), both spatially and temporally.
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Anwar, I.P., M.R. Putri, and A. Setiawan, (2017) Variasi transpor volume dan variabilitas arus laut di Selat Karimata dan Gaspar tahun 2010-2014 berdasarkan model numerik.- Jurnal Ilmu dan Teknologi Kelautan Tropis, 9 (2), 771-782. DOI: http://dx.doi.org/10.29244/jitkt.v9i2.19309.
Anwar, I.P., M. R. Putri, and A. Setiawan, (2018). Ocean numerical model experiment on estimating the variation of volume and heat transport in Karimata Strait.- IOP Conference Series: Earth and Environmental Science, 1–6, https://doi.org/10.1088/1755-1315/162/1/012001.
Backhaus, J.O.,(1983). A semi-implicit scheme for the shallow water equations for application to shelf sea modeling.- Continental Shelf Research, 2 (4), 243–254. DOI: https://doi.org/10.1016/0278-4343(82)90020-6.
Backhaus, J.O., (1985). A three-dimensional model for the simulation of shelf sea dynamics, Deutsche Hydrographische Zeitschrift.
Bahiyah, A., A. Wirasatriya, J. Marwoto, G. Handoyo, and A. Anugrah, (2019). Study of seasonal variation of sea surface salinity in Java Sea and its surrounding seas using SMAP satellite.- IOP Conf. Series: Earth and Environmental Science, 246, 012043, 1-12. DOI: 10.1088/1755-1315/246/1/012043.
Egbert, G.D., and S.Y. Erofeeva, (2002). Efficient inverse modeling of barotropic ocean tides.- Journal of Atmospheric and Oceanic Technology, 19.2: 183-204. DOI: https://doi.org/10.1175/1520-0426(2002)019<0183:EIMOBO>2.0.CO;2.
Firdaus, R., H. Setiyono, and G. Harsono, (2016). Karakteristik massa air lapisan tercampur dan lapisan termoklin di Selat Lombok pada bulan November 2015- Jurnal Oseanografi, 5, 4, 425-434. http://ejournal-s1.undip.ac.id/index.php/jose.
Gordon, A.L., R.D. Susanto, A. Ffield, B.A. Huber. W. Pranowo, and S. Wirasantosa, (2008). Makassar Strait throughflow, 2004 to 2006.- Geophysical Research Letters, 35, L24605, 1-5. DOI: 10.1029/2008GL036372, 2008.
Gordon, A.L., J. Sprintall, H.M. van Aken, D. Susanto, S. Wijffels, R. Molcard, A. Ffield, W. Pranowo, and S. Wirasantosa, (2010). The Indonesian throughflow during 2004-2006as observed by INSTANT program.- Dynamics of Atmospheres and Oceans, 50, 115-128. DOI: 10.1016/j.dynatmoce.2009.12.002.
Hermansyah, H., A.S. Atmadipoera, T. Prartono, I. Jaya, and F. Syamsudin, (2017). Stratification and stability of seawater mass in Sulawesi Sea- International Journal of Sciences Basic and Applied Research, 36, 8 36-44.
Horii T., I. Ueki, and K. Ando, (2020). Coastal upwelling events, salinity stratification, and barrier layer observed along the southwestern coast of Sumatra.- Journal of Geophysical Research: Oceans, 125, e2020JC016287. DOI: https://doi.org/10.1029/2020JC016287.
Huang, B., P.W. Thorne, V. F. Banzon, T. Boyer, G. Chepurin, J.H. Lawrimore, M.J. Menne, T.M. Smith, R.S. Vose, and H. Zhang, (2017) Extended Reconstructed Sea Surface Temperature, Version 5 (ERSSTv5): Upgrade, Validations, and Intercomparisons.- J. Climate, 30(20): 8179-8205. DOI: https://doi.org/10.1175/JCLI-D-16-0836.1.
Kistler, R., E. Kalnay, W. Collins, S. Saha, G. White, J. Woollen, M. Chelliah, W. Ebisuzaki, M. Kanamitsu, V. Kousky, H. van den Dool, R. Jenne, and M. Fiorino, (2001). The NCEP-NCAR 50-year reanalysis: Monthly means CD-ROM and Documentation.- Bulletin of the American Meteorological Society, 82 (2), 247-267.
Jarvis, A., H.I. Reuter, A. Nelson, and E. Guevara, (2008). Hole-filled seamless SRTM data V4.- International Centre for Tropical Agriculture (CIAT). http://www.cgiar-csi.org/data/srtm-90m-digital-elevation-database-v4-1.
Locarnini, R.A., A.V. Mishonov, J.I. Antonov, T.P. Boyer, H.E. Garcia, O.K. Baranova, M.M. Zweng, C.R. Paver, J.R. Reagan, D.R. Johnson, M. Hamilton, and D. Seidov, 2013. World Ocean Atlas (2013). Volume 1: Temperature. S. Levitus, Ed., A. Mishonov Technical Ed.; NOAA Atlas NESDIS 73, 40 pp. Publication DOI:10.7289/V55X26VD, dataset DOI:10.7289/V5F769GT.
Mayer, B., P.E. Damm, T. Pohlmann, and S. Rizal., (2010). What is driving the ITF? An illumination of the Indonesian throughflow with a numerical nested model system.- Dynamics of atmospheres and oceans, 50 (2), 301–312. DOI: https://doi.org/10.1016/j.dynatmoce.2010.03.002.
Messel, S.R., (1999). Fluid Mechanics for Marine Ecologist, Springer, Germany.
Monin, A.S., and R.V. Ozminov, (1985). Turbulence in the Ocean. D. Reidel
Pubs. Comp. Dordrecht.
Mustikasari, E., L.C. Dewi, Heriati, A., and W.S. Pranowo. (2015). Pemodelan pola arus barotropik musiman 3 dimensi (3D) untuk mensimulasikan fenomena upwelling di perairan Indonesia.- Jurnal Segara, 11 (1), 25-35.
Pond, S., and G.L. Pickard, (2013). Introductory dynamical oceanography. 2nd edition. Pergamon Press. Toronto.
Pujiana, K., A. L. Gordon, J. Sprintall, and R.D. Susanto, (2009). Intraseasonal variability in the Makassar Strait thermocline.- Journal of Marine Research, 67 (6), 757-777. DOI: 10.1357/002224009792006115.
Putri, M.R., (2005). Study of ocean climate variability (1959-2002) in the Eastern Indian Ocean, Java Sea, and Sunda Strait using the HAMburg Shelf Ocean Model, Disertasi Program Doktor, Universitat Hamburg.
Putri, M.R., A. Setiawan, T. Sari, B. Mayer, and T. Pohlmann, (2017). Trajectory model for identification of oil spill around the coast of Pari Island, Seribu Islands, North Jakarta.- Jurnal Ilmu dan Teknologi Kelautan Tropis, 9 (2), 657–664. DOI: https://doi.org/10.29244/jitkt.v9i2.19299.
Rejeki, H.A., Kunarso, and Munasik, (2018). Interannual variability of sea surface height difference between western Pacific Ocean and eastern Indian Ocean and its effect to geostrophic current in Lombok Strait.- IOP Conference Series: Earth and Environmental Science, 162 012016. DOI:10.1088/1755-1315/162/1/ 012016.
Siregar, N.S., P.L. Sari, N.P. Purba, W.S. Pranowo, and M.L. Syamsuddin, (2017). Pertukaran massa air di Laut Jawa terhadap periodisitas monsun dan Arlindo pada tahun 2015.- Depik-Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan. 6(1): 44-59. DOI: https://doi.org/10.13170/depik.6.1.5523.
Sjarif, S., (2018). Seasonal fluctuations in the surface salinity along the coast of the southern part of Kalimantan (Borneo).- Marine Research in Indonesia, 4(1). DOI: 10.14203/mri.v4i0.330.
Sprintall, J. and A. Revelard, (2014). The Indonesian throughflow response to Indo-Pacific climate variability.- Journal of Geophysical Research: Oceans, 1161-1174. DOI: https://doi.org/10.1002/2013JC009533.
Stewart, R. H., (2002). Introduction to physical oceanography. Texas A & M University: Department of Oceanography.
Susanto, R.D., A. Ffield, A.L. Gordon, and T.R. Adi, (2012). Variability of Indonesian throughflow within Makassar Strait, 2004 – 2009.- Journal of Geophysical Research, 117 (July), 349–364. DOI: https://doi.org/10.1029/ 2012JC008096.
Susanto, R.D., W. Zexun, A. Rameyo, F. Bin, L.I. Shujiang and F. Guohong, (2013). Observations of the Karimata Strait throughflow from December 2007 to November 2008.- Acta Oceanologica Sinica, 32 (5), 365–370. DOI: 10.1007/s13131-013-0307-3.
van Aken, H.M., I.S. Brodjonegoro, and I. Jaya, (2009). The deep-water motion through the Lifamatola Passage and its contribution to the Indonesian throughflow.- Deep-Sea Research Part I, 56 (8), 1203–1216. DOI: https://doi.org/10.1016/j.dsr.2009.02.001.
Wyrtki, K., (1987). Indonesian through flow and the associated pressure gradient- Journal of Geophysical Research, 92 (C12), 12941. DOI: https://doi.org/10.1029/ JC092iC12p12941.
Zweng, M.M., J.R. Reagan, J.I. Antonov, R.A. Locarnini, A.V. Mishonov, T.P. Boyer, H.E. Garcia, O.K. Baranova, D.R. Johnson, D. Seidov, and M.M. Biddle, (2013). World Ocean Atlas 2013, Volume 2: Salinity. S. Levitus, Ed., A. Mishonov Technical Ed.; NOAA Atlas NESDIS 74, 39 pp.
DOI: https://doi.org/10.22146/ijg.58091
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