ILMU KELAUTAN: Indonesian Journal of Marine Sciences
Vol 21, No 3 (2016): Ilmu Kelautan

Hydrodynamics of Bontang Seawaters: Its Effects on the Distribution of Water Quality Parameters

Ulung Jantama Wisha (Research institute of coastal resources and vulnerability, Ministry of marine affairs and fisheries)
Semeidi Husrin (Research institute of coastal resources and vulnerability, Ministry of marine affairs and fisheries)
Gegar Sapta Prasetyo (PT. Aneka Solusi dan Riset (ASR). Jl. Kebun Sirih No. 67-69, Menteng, Jakarta Pusat, DKI Jakarta, Indonesia 10340)

Article Info

Publish Date
29 Aug 2016


Bontang is a crowded with residential and industrial activities which produce heat waste into surrounding waters. This condition may cause environmental problems, and changes in water condition. Knowledge about dynamics of physic and chemical waters condition in Bontang city is very important as an effort to address environmental issues as part of coastal zone management and protection. The aim of this research is to understand hydrodynamic characteristics (tide and current) and the influence to distribution of physics and chemical in Bontang waters base on primary data (current and tide during one month, physics and chemicals waters data taken by in situ) and secondary data (bathymetry and tide forecasting). Hydrodynamic simulation is based on MIKE 21 and supported by CD-Oceanography and WR plot. The results show that the current is dominant move toward the Southwest and Northeast with current speed ranged from 0-0,22 m.s-1. The results of hydrodynamic simulation in the surface water show that the current move base on tide movement with current speed ranged from 0-0,24 m.s-1. The results of physic and chemical concentration is analysed by ArcGIS 10 to know spatial distribution of all parameters. Surface temperature ranged from 29-31,8oC, surface density ranged from 20-20,6 ppm, salinity ranged from 33,1-33,5 ppm, dissolve oxygen concentration ranged from 0,078-0,11 ppm. Distribution of all physic and chemical parameters is influenced by current and tide movement. Keywords: current, numerical model, water quality, Bontang waters

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Journal Info





Earth & Planetary Sciences


ILMU KELAUTAN: Indonesian Journal of Marine Sciences (IJMS) is dedicated to published highest quality of research papers and review on all aspects of marine biology, marine conservation, marine culture, marine geology and ...