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This study investigated the pattern and variability of ocean currents and Sea Surface Temperature around the Natuna Sea. The data of temperature and Ocean Currents downloaded from INDESO within the period of 2008-2014 and the data is averaged per month. The analysis of the data with spatial and temporal and combined with ENSO conditions. The results showed that the conditions of waters in the Natuna Sesa are influenced by monsoons where the current will lead to the southeast and south in West and to North and Southwest in East Muson. The water temperature follows the movement of the water mass. The temperature at the West monsoon ranges from 29.50C-30.250C. In the Transitional Muson 1 ranges from 29.50C-32.050C, the 29.950C-31.90C and the 2nd Transition Muson are 29.50C -310C. The mass transport of water around the Natuna Sea (water input) (20N) is about 0.49 Sv and the output around 10S is about 0.48 Sv. In the Malacca Strait is 0.06 Sv. Mass transport from LTS and Malacca strait are dominant to the southeast. The dominant transport fluctuations in section 1 are the annual and tidal periods, Section 2 where the dominant transport fluctuations are in the annual and tidal periods, and Section 3 where the transport fluctuations are dominant in the interannual and tidal periods.
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