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Asia-Pacific Network for Global Change Research

Asia-Pacific Network for Global Change Research

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Project • ARCP2011-21NSY-Manurung

Reconstruction of Sea Level Change in Southeast Asia (RESELECASEA) Waters Using Combined Coastal Sea Level Data and Satellite Altimetry Data

The RESELECASEA project reconstructed sea level change in South East Asian Seas by combining the global tide gauge data record, which spans many years but is sparse in spatial distribution, with the modern satellite altimetry record, which is just short of 20 years long but has essentially global coverage. The results show that the sea level trends in the region are some of the highest observed globally during the altimetric record, but the trends fluctuate on multi-decadal time scales due to wind forcing. Reconstructed sea level maps could be further validated using local tide gauge and along track altimetry data. Efforts have been made to explore use of coastal altimetry by conducting two workshops and training sessions and assisting the local community to build an autonomous capacity for development and processing of sea level information.