Studying Sea Level Variability in Indonesia Sea Based on Satellite Altimetry

Abstract

Sea level variability is one of the fundamental parameters for scientific development such as modeling the Earth’s climate. In addition, this parameter also playing crucial rules to mitigate socio-economic hazards due to sea-level changes, especially in coastal areas. Mitigating the sea-level hazards in an archipelagic country like Indonesia becomes more essential since the country is geographically constructed by various bathymetric depths with different types of seas. One of the attempts to study sea-level variability is to take benefit from satellite altimetry data. The satellite altimetry missions have observed the sea level more than 25 years, and hence the rate of sea-level variability can thoroughly be studied by comparing Mean Dynamic Topography with Sea Level Rise in the research area. The result shows positive and negative correlation in several areas that can be examined as regional-scale variations in sea level over the Indonesian sea.