The West Sumatra Waters is one of the vulnerable area exposed to impact of Sea Level Rise where the West Sumatra Waters located adjacent to the Indian Ocean Waters and Andaman Sea. Some of the negative impact caused by SLR are coastal abrasion, erosion, and sinking of small islands also increases risk of flooding. Therefore, research about SLR must be continued as an information in management of coastal areas. The technology that is widely used in observing SLR is the satellite altimetry. The data used in this research are Jason 2 and Jason 3 satellite altimetry data from NOAA since 2009 until 2019 and the tidal data of the IOC as a comparator. The research uses linear regression method to get the sea level rise value. From the research results obtained SLR value in the West Sumatera Waters is -2.5 mm/years. The decline of the sea level in the region is caused by many factors such as the Indian Ocean Dipole and ENSO phenomenon.
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