VARIABILITY ANALYSIS OF INDONESIAN THROUGHFLOW IN MAKASSAR STRAIT : Abstract

• Main Author: Galsan Mahie <br> NIM. 224 02 006, Andi
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/5719
• Institution: Institut Teknologi Bandung

</i><b>Abstract: <i></b><p align="justify"> The transport volume of the Indonesian Throughflow (ITF) in the Makassar strait has been simulated by using barotropic 3D hydrodynamics Princeton Ocean Model (POM) during years 1972 to 1974, 1981 to 1983 and 1996 to 1998. The simulation is to analysis variability of volume transport related to ENSO and Monsoon. Sea surface temperature anomaly at Niño3.4 and meridional wind velocity are used as indicator for ENSO and Monsoon and cross correlated with transport volume in the strait.<p align="justify"> Mean value of the ITF in the Makassar Strait from April 1973 to May 1974 (La Niña phase) is 9.54 Sv and in June until December 1998 14.75 Sv. In the E Niño phase from April 1972 to March 1973 is 3.98 Sv, from May 1982 to June 1983 is 6.12 Sv and from April 1997 to May 1998 is 11.21 Sv. In the normal phase 1974 is 5.31 Sv, in 1981 is 5.31 Sv and in 1996 is 12.95 Sv. Maximum and minimum transport volume in phase La Niña 1973 to 1974 occurs in November 1973 is 12.47 Sv and in May 1973 is 7.22 Sv respectively, and in 1998 in October is 17.63 Sv and in June is 11.10 Sv.<p align="justify"> In the El Niño phase 1972 to 1973 exists in May 1972 is 6.53 Sv and in December 1972 is 1.72 Sv respectively, in 1982 to 1983 occurs in May 1983 is 8.65 Sv (maximum) and October 1982 is 3.84 Sv (minimum) and in 1997 to 1998 maximum and minimum transport occurs in May 1997 is 14.61 Sv and in January 1997 is 8.14 Sv. Meanwhile in the normal phase 1974 maximum and minimum transport exists in March is 9.71 Sv and in October is 0.47 Sv s respectively, in 1981 : February is 7.79 Sv and November is 3.19 Sv and in 1996 occurs in June is 15.79 Sv and in November is 5.61 Sv.<p align="justify"> Cross – correlation results shows that ENSO dominantly affect transport volume in the Makassar strait, while effect of monsoon is weakly. The molde verification generally shows that good, although in January and May 1997 seen is not satisfy.<p align="justify"> The Indonesian Throughlow in the Makassar Strait at ENSO phase emit a stream of northerly to good south which vary between its it and also between occurence year like elaborated at second paragraph above.</p>