PARTICLE SIZE CHARACTERISTICS OF RIVERBED SEDIMENTS TRANSPORTED BY TIDAL BORE ‘BONO’ IN KAMPAR ESTUARY, RIAU-INDONESIA

Wisnu Arya Gemilang, Ulung Jantama Wisha, Guntur Adhi Rahmawan

Abstract


The presence of tidal bore in the Kampar River (locally known as ‘bono’) may influence sedimentation in the Kampar River and its estuary. Understanding sedimentation mechanisms (e.g., erosion, deposition) is important to communities along the Kampar River, which can be studied by analyzing characteristics of grain size distribution. Here, we study riverbed sediment samples collected from 17 stations using an Ekman grab sampler, accompanied by bathymetry and acoustic Doppler current profiler (ADCP) measurements. Grain size data show that the sediments are coarser upstream and gradually finer downstream. Silty sands are predominant in the upstream section of the river, sands in its river body and sandy silts in the downstream. The results indicate the influence of undular bores on grain size characteristics. We also found that the propagation of bono and Kampar River’s funnelshaped morphology cause intense scouring events of riverbed sediments. Sortation values that range between 0.332.14 suggest unstable currents that result in randomly deposited sediments. The sediment mass transfer per area is positively towards downstream at the low tidal condition. However, after the passage of the bores, the sediment mass transfer area becomes negatively towards upstream.


Keywords


Bono, tidal bore, sediment particle analysis, sedimentation, Kampar River

Full Text:

PDF

References


Bathara, L. (2009). Karakteristik dan Potensi Sedimen di Muara Sungai Kampar. Ilmu Perairan (Aquatic Science), 7(2), 11-22.

Cameron, N.R., S.A. Ghazali dan SJ. Thompson. (1982). Peta Geologi Lembar Saiksriindrapura dan Tanjung Pinang, Sumatera. Pusat Penelitian dan Pengembangan Geologi. Bandung.

Chanson, H. (2009). Environmental, Ecological and Cultural Impacts of Tidal Bores, Benaks, Bonos, and Burros. IWEH, International Workshop on Environmental Hydraulics, Theoretical, Experimental and Computational solutions, Valencia, 29th, 30th October 2009. doi: 10.1201/b10999-3.

Dalrymple, R. W., Zaitlin, B. A., & Boyd, R. (1992). Estuarine facies models: conceptual basis and stratigraphic implications: perspective. Journal of Sedimentary Research, 62(6), 1130-1146. doi: 10.1306/d4267f552b26-11d7-8648000102c1865d.

Docherty, N. J., Chanson, H. (2010). Characterisation of Unsteady Turbulence in Breaking Tidal Bores Including the Effects of Bed Roughness. Hydraulic Model Reports. School of Civil Engineering, The University of Queensland, Report CH76/10. 100 pp. doi: 10.1061/(asce)ww.1943-5460.0000048.

Dyer, K. (1986). Coastal and estuarine sediment dynamics. John Wiley dan Sons. Chichester. 342p.

Folk, R. L., & Ward, W. C. (1957). Brazos River bar: a study in the significance of grain size parameters. Journal of Sedimentary Research, 27(1), 3-26. doi: 10.1306/74d70646-2b2111d7-8648000102c1865d.

Furgerot, L., Mouazé, D., Tessier, B., Perez, L., & Haquin, S. (2013). Suspended sediment concentration in relation to the passage of a tidal bore (See River estuary, Mont Saint Michel Bay, NW France). In Proceedings of Coastal Dynamics (pp. 671-682). doi: 10.1002/9781119218395.ch4.

Irudhayanathan, A., Thirunavukkarasu, R., & Senapathi, V. (2011). Grain size characteristics of the Coleroon estuary sediments, Tamilnadu, East coast of India. Carpathian Journal of Earth and Environmental Sciences, 6(2), 151157.

Kumar, G., Ramanathan, A. L., & Rajkumar, K. (2010). Textural characteristics of the surface sediments of a Tropical mangrove ecosystem Gulf of Kachchh, Gujarat, India. Indian Journal of Marine Sciences, 39(3), 415-422.

Kurniawan, A., Wisha, U. J., Husrin, S., and Karjadi, E. A. (2017). Tidal Bore Generation at the Estuaries of The East Coast of Sumatra. E-proceeding of 37th IAHR World Congress. August 13-18th January 2017, Kuala Lumpur, Malaysia.

Prandle, D. (2006). Dynamical Controls on Estuarine Bathymetry: Assessment Against UK Database. Estuarine, Coastal and Shelf Science, 68(1-2), 282-288. Doi: 10.1016/j. ecss.2006.02.009.

Rahmawan, G. A., Wisha, U. J., Husrin, S. & Ilham. (2016). Analisis batimetri dan pasang surut di muara Sungai Kampar: Pembangkit penjalaran gelombang pasang surut undular bore (bono). J. Geomatics. 22(2), 57-64. doi: 10.24895/JIG.2016.22-2.573.

Setiady, D. (2010). Perkiraan Potensi Cadangan Pasir Laut Yang Terdapat Di Perairan Muara Kampar Kepulauan Riau. Buletin Sumber Daya Geologi. 5(1): 11-16 Wentworth, C. K. (1922). A scale of grade and class terms for clastic sediments. The Journal of Geology, 30(5), 377-392.

Wisha, U. J., Dhiauddin, R., & Kusumah, G. (2017). Remote Estimation of Total Suspended Solid (TSS) Transport Affected by Tidal Bore “Bono” of Kampar Big River Estuary Using Landsat 8 OLI Imagery. Mar. Res. Indonesia. 42(1): 37-45. doi: 10.14203/mri.v42i1.116.

Yulistiyanto, B. (2009). Fenomena Gelombang Pasang Bono di Muara Sungai Kampar. Jurnal dinamika Teknik Sipil, 9(1), 19-26.




DOI: http://dx.doi.org/10.14203/mri.v43i1.293

Refbacks

  • There are currently no refbacks.


Copyright © 2018 Marine Research in Indonesia

 


 Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
© Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)