Analysing the relationship between ocean indices and rainfall in the Chao Phraya River Basin
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Author list: Rangsiwanichpong P., Kazama S., Ekkawatpanit C.
Publisher: Wiley
Publication year: 2017
Journal: International Journal of Climatology (0899-8418)
Volume number: 37
Start page: 230
End page: 238
Number of pages: 9
ISSN: 0899-8418
eISSN: 1097-0088
Languages: English-Great Britain (EN-GB)
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Abstract
We examined the variability of ocean indices and rainfall in the Chao Phraya River Basin. We used rescaled adjusted partial sums (RAPS) to analyse the relationship between rainfall and various ocean indices, such as the Southern Oscillation Index (SOI), sea surface temperature indices and the Dipole Mode Index (DMI). Rainfall in the Chao Phraya River basin was strongly correlated with the SOI index. Furthermore, results of the analysis accounted for the location of the rainfall station and showed that rainfall in the high-latitude area of the Chao Phraya River Basin was most highly correlated with the SOI index. However, sea surface temperature (SST) indices were more highly correlated with rainfall than the SOI index in the low-latitude area. ฉ 2017 Royal Meteorological Society
Keywords
ocean index, rainfall variability
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