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The Malaysian seas: variation of sea level observed by tide gauges and satellite altimetry

Omar, Kamaludin and Ses, Sahrum and Naeije, Mac and Mustafar, Mohd. Asrul (2005) The Malaysian seas: variation of sea level observed by tide gauges and satellite altimetry. In: SEAMERGES Final Symposium, 28-1 December 2005, Bangkok, Thailand.

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Abstract

Since a decade, satellite altimetry has demonstrated its capability in measuring temporal change of the global mean sea level with precision better than 1 mm/year. In altimetry data processing, the recently updated environmental and geophysical corrections were applied. The analysis of Topex data presented here is based on monthly averages using GOT00.2b ocean tide model. Sea level trends are estimated from 1.5 to 8.9 mm/year using two decades of tide gauges observations along coastal of Malaysia. Comparison of 1o x 1o areas at the tide gauge locations nearby Topex track clearly show good agreement in pattern and trend of sea level variations. Here, sea level variations for four areas in the Malaysian Seas have been investigated using ten years of Topex altimetry data. The time series of dynamic sea surface elevation clearly show El Niño effect on the end of 1997 and sea level rising in the Malaysian Seas. Linear terms of sea level variation for those areas are estimated at rates between 6.3 – 14.7 mm/year.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Satellite altimeter, Geodesy, Mean Sea-Level
Subjects:G Geography. Anthropology. Recreation > GB Physical geography
Q Science > QB Astronomy
Divisions:Geoinformation Science And Engineering (Formerly known)
ID Code:3518
Deposited By: En. Tajul Ariffin Musa
Deposited On:04 Jun 2007 06:27
Last Modified:16 Jan 2012 07:22

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