The Local Characteristics of Indonesian Seas and Its Possible Connection with ENSO and IOD: Ten Years Analysis of Satellite Remote Sensing Data

I Dewa Nyoman Nurweda Putra, Tasuku Tanaka

Abstract


The overall objective of this study is to investigate the local characteristics of the Indonesian Seas in response to the 6 months, seasonal and inter-annual variations. A moving averages method with 3, 6 and 12 months of lengths has been used to show the temporal variability. Using satellite observed datasets for the 10 year period from December 1999-November 2009, the results of moving averages indicate the 6 months and seasonal variabilities of sea surface temperature (SST), zonal-component of wind speed (U-WS) and rain rate (RR) in most of the Indonesian Seas area. It is also interesting to note that, although in the same latitude with the strong seasonal variability area, a stable condition of SST occurs in some particular areas. The cross-lag correlation analysis shows the relationship among indices with several month time lags. After removing the seasonal variability, the possible connection of indices with the El Nino-Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD) phenomena in the Indonesian Seas can be detected by the 6 month moving averages method.


Full Text: PDF DOI: 10.5539/esr.v2n2p153

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Earth Science Research   ISSN 1927-0542 (Print)   ISSN 1927-0550 (Online)
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