Observed Intraseasonal Oceanic Variations in the Eastern Equatorial Indian Ocean and in the Outflow Straits of the Indonesian Throughflow

Iskandar, Iskhaq and Masumoto, Yukio and Mizuno, Keisuke (2010) Observed Intraseasonal Oceanic Variations in the Eastern Equatorial Indian Ocean and in the Outflow Straits of the Indonesian Throughflow. I TB J. Sci., 42 A (2). pp. 107-126.

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Abstract

The observed currents in the eastern equatorial Indian Ocean and in the outflow straits of the Indonesian Throughflow (ITF) are shown to have significant intraseasonal variations and coherency during January 2004 November 2006. The wavelet analysis between the eastern equatorial Indian Ocean and the ITF straits demonstrates significant intraseasonal coherency for the observed current at 50m depth. At 150m depth, the intraseasonal coherency only occurs between the observed currents in the eastern equatorial Indian Ocean and in the Lombok and Ombai Straits. On the other hand, at 350m depth the intraseasonal coherency is only found between the eastern equatorial Indian Ocean and the Ombai Strait. This intraseasonal coherency is associated with the wind-forced equatorial Kelvin waves which propagate eastward along the equatorial and coastal wave guides. Near-surface intraseasonal variations are associated with the first baroclinic mode with typical phase speed of 2.91

Item Type: Article
Uncontrolled Keywords: equatorial Kelvin waves; Indonesian Throughflow; intraseasonal variations; INSTANT.
Subjects: Q Science > Q Science (General) > Q1-295 General
Q Science > QC Physics > QC1-999 Physics
Divisions: Faculty of Mathematics and Natural Science > 45201-Physics (S1)
Depositing User: Dr. Iskhaq Iskandar
Date Deposited: 27 Sep 2019 06:41
Last Modified: 27 Sep 2019 06:41
URI: http://repository.unsri.ac.id/id/eprint/8443

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