Climate Change and Variability in the Palembang City: Long-term Trends and Variability of Palembang Rainfall

Iskandar, Iskhaq and Affandi, Azhar Kholil and Setiabudidaya, Dedi and Syamsuddin, Fadli (2013) Climate Change and Variability in the Palembang City: Long-term Trends and Variability of Palembang Rainfall. AIP Conference Procceding, Padjadjaran International Physics Symposium 2013.

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    Abstract

    Long-term trends of Palembang rainfall are used to evaluate the climate change signal. The result shows that the long-term trend in Palembang rainfall is seasonally dependent. It indicates two distinct characteristics: a wetting trend during the southeast monsoon season (June–August) and a drying trend during the northwest monsoon season (December–February). This implies that there are a wetting-trend during dry-season and a drying-trend during rainy season. Furthermore, a drying-trend is also observed during the monsoon break season in March–May and September–November. A positive-trend in rainfall during June–August is 4.57 mm/year, while the strongest negative-trend in rainfall observed during December – February is -16.02 mm/year. The variability of Palembang rainfall is linked to a coupled ocean-atmosphere mode in the tropical Indian and Pacific oceans. The connection between the seasonal rainfall variations and Indo-Pacific climate variability is demonstrated by the simultaneous correlations between the sea surface temperature (SST) and the Palembang rainfall. The SST anomaly in the tropical regions affects the climate and general circulation through change in the Walker circulation (e.g. Indian Ocean Dipole and ENSO events).

    Item Type: Article
    Uncontrolled Keywords: climate change, El-Niño, Indian Ocean Dipole, La-Niña, Palembang rainfall.
    Subjects: Q Science > QC Physics
    Divisions: Faculty of Mathematics and Natural Sciences > Department of Physics
    Depositing User: Dr. Iskhaq Iskandar
    Date Deposited: 02 Feb 2015 08:48
    Last Modified: 02 Feb 2015 08:48
    URI: http://eprints.unsri.ac.id/id/eprint/5101

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