Indonesia Conference Directory


<< Back

Numerical Modeling of Current Circulation in Balikpapan Bay during an Oil Spill Event, March 31st, 2018
Ashadi Arifin Nur(a*), Ivonne Milichristi Radjawane(a), Totok Suprijo(a), Idris Mandang(b)

a) Faculty of Earth Science and Technology, Bandung Institute of Technology
Jalan Ganesa No 10, Bandung, 40132, Indonesia
*ashadi_arifin_nur[at]students.itb.ac.id
b)Hydro-Atmosphere Environment Research Group, Physical Oceanography and
Computational Modeling Laboratory, Program Study of Physics,
Faculty of Mathematics and Natural Sciences, Mulawarman University
Jalan Barong Tongkok No 04, Samarinda, 75123, Indonesia


Abstract

The coastal area in Balikpapan Bay and its surrounding area has been devastated after the burst of an underwater oil pipe at the bay on March 31st, 2018, and the crude oil still continues spreading for a few days later. A three-dimensional hydrodynamic model is used to simulate the currents dynamic and investigate the influence of the currents circulation on the spreading of the oil spill in Balikpapan Bay from March 31th to April 15th, 2018, to cover the event i.e. several weeks after the oil spill incident. Model results are validated by calculating the RMSE, MAPE and model skill using water level between available observation data at Semayang Port, Balikpapan station and numerical model from October 1st, 2012 to January 1st, 2013. Verification result of tidal elevation data from observation and model prediction shows a good agreement with RMSE = 7.8 cm, MAPE = 14.3% and model skill = 0.995. Surface currents circulation in Balikpapan Bay can be distinguished by the currents pattern on the spring tide and neap tide condition. During the spring tide condition, the surface currents mostly move to the east after coming out from the bay. However, the surface currents are strongly going southward after come out from the bay on the neap tide condition. Based on the satellite images captured for the next days after the event, the spreading pattern of the oil spill seems to be matched to the pattern of surface currents circulation on the spring tide condition. From the analysis of the model result, it shows that the currents circulation playing the main role to disperse the oil spill in Balikpapan Bay towards the Makassar Strait.

Keywords: Tidal current; Hydrodynamic model; Balikpapan Bay; Oil spill

Topic: Coastal and Ocean Dynamics

Link: https://ifory.id/abstract/LbzNAFEYuCwW

Conference: The 2nd International Conference on Maritime Sciences and Technology (MSAT 2019)

Plain Format | Corresponding Author (Ashadi Arifin Nur)

Featured Events

<< Swipe >>
<< Swipe >>

Embed Logo

If your conference is listed in our system, please put our logo somewhere in your website. Simply copy-paste the HTML code below to your website (ask your web admin):

<a target="_blank" href="https://ifory.id"><img src="https://ifory.id/ifory.png" title="Ifory - Indonesia Conference Directory" width="150" height="" border="0"></a>

Site Stats