Abstract
The sea level rise phenomenon can threaten the environmental, social, and economical aspect of the coastal area. Human activities and other living beings in small islands are very dependent on the resources that are available in the islands. Indonesia as the largest archipelagic state in the world that has 17,508 islands with 99,8% of them are small islands will be directly affected by the phenomenon, which is the submergence of the islands. This research aims to determine the sea level rise trend in Saparua Island using tidal data that are obtained from tide gauge and altimetry satellite. A 12-years tide gauge data and 17-years Sea Level Anomaly (SLA) value of altimetry satellite are used in the research. The monthly average in a 12-years range of tidal station data is calculated to obtain sea level rise trend, meanwhile SLA value from the altimetry satellite observation in the form of satellite footprint is interpolated to get the SLA value across the water area as the sea level rise parameter of altimetry satellite. Then, sea level rise trend will be use to predict the impact of the sea level rise based on topographical condition of Saparua Island. Using those methods, the sea level rise value will be obtained from tide gauge and altimetry satellite in a millimeter orde.
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