Hydrodynamic Condition of Tides and Wave Diffraction in the Estuary of Jeneberang River

Riswal Karamma, Muhammad Saleh Pallu, Muh Arsyad Thaha, Mukhsan Putra Hatta


The coastal hydrodynamic pattern around the estuary is determined by the wave, river discharge, and the tidal condition which work simultaneously. The wave factor contributes to more dominant influence on estuaries located in the open sea. Wave coming towards the coast can generate current on the coast. The current pattern around the estuary is determined mainly by the magnitude of the angle formed between the incoming wave and the coastline. The objective of this research is to analyze the wave diffraction patterns and the length of tidal propagation towards the direction of the coast in the estuary. Investigated area is situated in the estuary of Jeneberang River. The analysis of tidal propagation and wave diffraction covers a reach of 4270 meters upstream. Data collected include bathymetric, wind, and tidal data. Furthermore, the result of this analysis can be used as an input in efforts to manage and develop the coastal area in the estuary of Jeneberang River. The length of the tidal propagation in the estuary of Jeneberang River is approximately 1220 meters upstream. Wave diffraction occurs from the north, northwest, and west direction. The highest wave diffraction came from the west direction with the value of 0.73 m and the lowest wave diffraction came from the north direction with the value of 0.04 m.


tidal; wave diffraction; estuary

Full Text:



A. Purwandana, “Kajian Percampuran Vertikal Massa Air dan Manfaatnya (Study of Vertical Mixing of Water Mass and Its Benefits),” Oseana, vol. 38, no. 3, pp. 09–22, 2013.

T. Jansen, “Sedimentasi, Salinitas dan Intrusi Air Laut pada Profil Muara Sungai Chikugo, Japan (Sedimentation, Salinity and Seawater Intrusion in Japan’s Chikugo Estuary),” Jurnal Ilmiah Media Engineering, vol. 6, no. 2, Jul. 2016.

B. Triatmodjo, Teknik Pantai (Coastal Engineering). Beta Offset, Yogyakarta, 1999.

H. Surbakti, “Karakteristik Pasang Surut dan Pola Arus di Muara Sungai Musi, Sumatera Selatan (Tidal Characteristics and Flow Patterns at the Musi River Estuary, South Sumatra),” Jurnal Penelitian Sains, vol. 15, no. 1, pp. 35–39, 2012.

K. R. Dyer, Coastal and Estuarine Sediment Dynamics. Chichester; New York: Wiley, 1986.

V. T. Buchwald, “The diffraction of tides by a narrow channel,” Journal of Fluid Mechanics, vol. 46, no. 3, pp. 501–511, Apr. 1971, doi: 10.1017/S0022112071000661.

G. Dodet, X. Bertin, N. Bruneau, A. B. Fortunato, A. Nahon, and A. Roland, “Wave-Current Interactions In A Wave-Dominated Tidal Inlet,” Journal of Geophysical Research: Oceans, vol. 118, no. 3, pp. 1587–1605, 2013, doi: 10.1002/jgrc.20146.

Y. Arafat, M. S. Pallu, F. Maricar, and R. T. Lopa, “Hydrodynamics and Morphological Changes Numerical Model of the Jeneberang Estuary,” International Journal of Innovative Research in Advanced Engineering (IJIRAE), vol. 3, no. 8, pp. 21–29, 2016.

B. Bakri, A. Sumakin, Y. Widiasari, and M. Ihsan, “Analysis of Water Salinity Distribution Pattern in The Estuary of Jeneberang River by Using ArcGIS, Fourth International Symposium on Infrastructure Development,” presented at the he 3rd International Conference on Civil and Environmental Engineering 2019, Gowa, vol. 419. 2019.

R. Karamma, M S. Pallu, M. A, Thaha, M. P. Hatta,“Stratification Model of Seawater Mass Structure at the Estuaries of Jeneberang River and Tallo River and the influences to current pattern in Makassar Coastal Areas,” in IOP Conference Series: Earth and Environmental Science, Gowa, vol. 419. 2019.

B. Bakri, S. Pallu, R. Lopa, M. Akbar, M. Ihsan, and Y. Arai, “Flow Velocity Distribution Analysis on Free Intake Structure and Its Influence to Intake Capacity,” in International Conference on Engineering and Technology Development (ICETD), 2017.

M. P. Hatta, V. A. Ilham, and E. Aprianti, “Simulation of the Effect of Flow Velocity on Floating Sediment Concentration at the Jeneberang River Estuary with the Nays2DH Model,” International Journal of Engineering Research and Applications (IJERA), vol. 9, no. 11, pp. 1–7, 2019.

R. Karamma and A. S. Sukri, “Pemodelan Pasang Surut terhadap Surf Zone Menggunakan Surfer, Fortran C++ dan GIS pada Pantai Kota Makassar (Modelling of Tides in Surf Zone on The Beach of Makassar City Using Surfer, Fortran C ++ And GIS),” SemanTIK, vol. 4, no. 2, pp. 47–56, Dec. 2018.

United States Army Corps of Engineers, Shore protection manual, 4th ed. Vicksburg, Miss, Washington, DC: Dept. of the Army, Waterways Experiment Station, Corps of Engineers, Coastal Engineering Research Center, 1984.

United States Army Corps of Engineers, Coastal engineering manual. 2002.

T. Arifin, Y. Yulius, and M. F. A. Ismail, “Kondisi Arus Pasang Surut Di Perairan Pesisir Kota Makassar , Sulawesi Selatan (Tidal Current Conditions in Coastal Area of Makassar, South Sulawesi),” DEPIK Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan, vol. 1, no. 3, Dec. 2012, doi: 10.13170/depik.1.3.113.

R. Karamma, “Analysis of Coastal Sediment Transport in Estuary of Jeneberang and Tallo River Caused by Waves against Coast of Makassar,” in ICMID, Kendari, 2018.

DOI: http://dx.doi.org/10.31963/intek.v7i1.2103


  • There are currently no refbacks.

Publisher by:

Politeknik Negeri Ujung Pandang
Kampus 1 Gedung Administrasi Lantai II
Jalan Perintis Kemerdekaan KM.10 Tamalanrea
Makassar 90245
E-mail: intek@poliupg.ac.id

INTEK Indexed by:


 Member of :

Creative Commons License

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

 View My Stats