Author(s): Yoshihiko Iseri; Akira Kawamura; Kenji Jinno
Linked Author(s):
Keywords: Ugust rainfall; SOI; PDOI; NPI; DMI; Cross-correlation
Abstract: Climate change and extreme weather have affected human beings. One of the most crucial issues of global climate change is its affect on water resources. In particular, evaluation of the relationships between climate change and rainfall is indispensable in order to minimize the harm of droughts and heavy rains. The conditions of climate can be represented by atmospheric-oceanic indices, those are for example Southern Oscillation index (SOI), Pacific Decadal Oscillation Index (PDOI), North Pacific Index (NPI) and Dipole Mode Index (DMI). This study investigates the relationship between the four atmospheric-oceanic indices and the precipitation during heavy rainfall season in the city of Fukuoka, located in the northern part of Kyushu, Western Japan. Correlation analysis showed August rainfall had rather high correlation with June SOI and February NPI. Above and below normal amount of August rainfall appeared to have some relationship with the phase of SOI and NPI.
Year: 2005