Open AccessNumerical modeling of suspended sediment concentration (SSC) due to water surface fluctuations of the Krueng Langsa estuary, Aceh Province
Author(s) -
Faiz Isma,
Yulina Ismida,
Meilandy Purwandito,
Haikal Fajri
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/933/1/012022
Subject(s) - estuary , oceanography , environmental science , sediment , hydrology (agriculture) , salinity , surface runoff , current (fluid) , discharge , streamflow , geology , geography , geomorphology , geotechnical engineering , ecology , drainage basin , cartography , biology
Krueng Langsa estuary is a meeting zone between the sea and the river that crosses the Langsa city. As a result, the Krueng Langsa estuary had a physical change due to tides and river discharge. The Indonesian Minister of Trade Regulation of Number 24 of 2019 has announced that the Krueng Langsa estuary will resume its activities as international shipping. This indeed becomes an important problem for the continuity of shipping activities. An initial study needs to be carried out related to changes in the physical waters of the estuary due to high and low tides. This study is focused on the estuary physical system—especially in water depth, tidal current, salinity, temperature, and SSC along the estuary due to tidal dynamics processes and river discharge runoff—which are modeled numerically. The influence of the Malacca Strait and the Langsa River flow on SSC at each measurement point have also been observed. In this study, the model results were evaluated using the in-situ measurements. The results show that numerical modeling is capable of providing useful information about the physical condition of the Krueng Langsa estuary and agree well with the measurement data.