Ecology, Environment and Conservation Paper

THE INFLUENCE OF TIDE ON SUSPENDED SEDIMENT TRANSPORT IN BARITO DELTA, SOUTHERN KALIMANTAN, INDONESIA

Deasy Arisanty, Junun Sartohadi, Muh. Aris Marfai and Danang Sri Hadmoko

Abstract

Delta is an accumulation of sediment that influences river and sea. Marine agent has a function to redistribute sediment in delta, such as tide. Intensively, tide influenced Barito Delta development. The objectives of this research are to analyze the pattern of tide height in the wet season and dry season and to evaluate the influence of tide height and tide velocity for suspended sediment transport (SSC). Tidal measurements were conducted in four locations as follows: Tamban channel, Trisakti harbor, Kapuas, and Belawang, with eight replicates. Tides were measured in the dry season and wet season for one day with one hour interval. Suspended sediments were taken on the highest and lowest tide level during 24 hours. The research showed that tide in wet season was higher than in dry season due to rain water. Both in the wet season and dry season, there were no significant differences of the height of tide between spring tide and neap tide. In wet season and dry season, tides have the low influence for SSC transport. The role of river discharge is more important in Barito Delta than tides.