Impact of la Niña event in Southeast Asia region during the year 2011 from GPS observation

Wayan Suparta, and Mohd. Alauddin Mohd. Ali, and Baharudin Yatim, and Mandeep Singh Jit Singh, and Ahmad Iskandar, and Ahmad Norazhar Mohd Yatim, (2012) Impact of la Niña event in Southeast Asia region during the year 2011 from GPS observation. In: Impact of la Niña event in Southeast Asia region during the year 2011 from GPS observation, 7 julai 2012, Bandung.

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Abstract

This paper presents the impact of La Niña events in Southeast Asian based on the precipitable water vapor (PWV) data derived from GPS measurements. Using GPS PWV data over the period of 2011 from four selected stations in Malaysia (UMSK), Singapore (NTUS), Philippines (PIMO) and Indonesia (BAKO), we quantify the correlation between PWV and the sea surface temperature anomaly (SSTa). Three cases of La Niña event has been detected. For the case of January-March, the GPS PWV and SSTa on a weekly basis observed with low correlation at all stations. A moderate correlation was observed for the case of November-December. In contrast, a good relationship for PIMO and BAKO was found for the case of September. From the data analysis, we can conclude that La Niña event had an impact to the Southeast Asia, primarily to the increase in atmospheric water vapor content, mainly at the end of 2011. This can lead to increase the rainfall and potential risk of flooding and landslides. © 2012 IEEE.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Keyword: GPS water vapor , impact , La Niña , Sea Surface Temperature anomaly
Subjects: Q Science > QE Geology
Department: SCHOOL > School of Science and Technology
Depositing User: MDM FAUZIAH MATSIN
Date Deposited: 17 May 2013 10:44
Last Modified: 08 Sep 2014 14:05
URI: https://eprints.ums.edu.my/id/eprint/5991

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