The interanual rainfall variability in Indonesia corresponding to El Ni?o Southern Oscillation and Indian Ocean Dipole

The Impact of the Indian Ocean Dipole (IOD) and the El Ni?o Southern Oscillation (ENSO) event for Indonesian rainfall has been investigated for the period from 1950 to 2011. Inter-annual change of IOD and ENSO indices are used to investigate their relationship with Indonesian rainfall. By using the...

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Bibliographic Details
Published in海洋学报（英文版） Vol. 38; no. 7; pp. 57 - 66
Main Authors I Gede Hendrawan, Koji Asai, Andhita Triwahyuni, Diah Valentina Lestari
Format Journal Article
LanguageEnglish
Published Department of Marine Science,Udayana University,Badung,Bali 80361,Indonesia%Graduate School Science and Engineering,Yamaguchi University,Yamaguchi 755-8611,Japan%Graduate School Science and Engineering,Yamaguchi University,Yamaguchi 755-8611,Japan 2019
Center for Remote Sensing and Ocean Sciences,Udayana University,Badung,Bali 80361,Indonesia%Department of Environmental Engineering,Faculty of Engineering,Mahasaraswati University,Denpasar,Bali 80236,Indonesia
Subjects
Indonesian rainfall
ENSO
wavelet
IOD
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Summary:The Impact of the Indian Ocean Dipole (IOD) and the El Ni?o Southern Oscillation (ENSO) event for Indonesian rainfall has been investigated for the period from 1950 to 2011. Inter-annual change of IOD and ENSO indices are used to investigate their relationship with Indonesian rainfall. By using the wavelet transform method, we found a positive significant correlation between IOD and Indonesian rainfall on the time scale of nearly 2.5–4 years. Furthermore, the positive significant correlation between ENSO (sea surface temperature anomaly at Ni?o3.4 area indices) and Indonesian rainfall exists for shorter than 2 years and between 5.5 to 6.5-year time scales.
ISSN:0253-505X
1869-1099