Wavelet analysis on Southern Thailand rainfall data

Journal article

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Publication Details

Author list: Luangmalawat B., Humphries U., Tangmanee S.

Publisher: Pushpa

Publication year: 2014

Journal: Far East Journal of Mathematical Sciences (0972-0871)

Volume number: 94

Issue number: 2

Start page: 149

End page: 159

Number of pages: 11

ISSN: 0972-0871

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84918781747&partnerID=40&md5=c0a547c9e5debffe134b6486095de518

Languages: English-Great Britain (EN-GB)

Abstract

Wavelet transform with the Morlet wavelet function was applied to study the periodic oscillation of rainfall variability in southern Thailand. Using the white noise time series as a background for hypothesis testing of the monthly rainfall of 62 years (1951 to 2012), the wavelet power spectrum shown that in the east coast, there were two periodic oscillations of period 4-8 months and 8-16 months, meanwhile in the west coast the rainfall having one periodic oscillation with 8-16 months. ฉ 2014 Pushpa Publishing House, Allahabad, India.

Keywords

Periodic oscillation, Rainfall data, Wavelet power spectrum