Abstract
Sea Surface Height (SSH), seawater temperature, and ocean currents are an important oceanographic variables that were used to identify the ocean eddies variability. This research aims to investigate the influence of ENSO on eddies variability in Western Pacific Ocean (WPO), by using the Automated Eddy Detection (AED). The results showed that cyclonic eddies are mostly formed in WPO from a total of 2024 eddies. Eddies total increases within the amount of the sea’s depth, at 200 m has the highest of eddy total. The temperature in eddy center mostly started changing at a depth of 150 m, which is at the cyclonic eddy has a lower value and at anticyclonic has a higher value. That has the large effect of changes SSH. During El Nino, sea level anomaly decreases down to -0.3 m, while sea level anomaly minimum decrease down to -0.1 m during La Niña. At the WPO, Mindanao Eddies formed along the year, whereas Halmahera Eddies were weakened in West Season. A periodic ENSO affects eddies variability, in general, the diameter, total and temperature center of eddies are smaller during El Niño, and greater during La Niña than normal condition.
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