ABSTRACT
ABSTRACT: In this paper, low-frequency variability of Sea Surface Height (SSH) in the tropical Pacific Ocean during 1950-2014 is analyzed based on two combined SSH anomaly data. Then, the influence of decadal variations on the sea level trend since 1993 is mainly discussed. The results indicate that the interannual and decadal variations of SSH in the tropical Pacific Ocean are related to the phenomenon of ENSO (El Niño-Southern Oscillation) and PDO (Pacific Decadal Oscillation), respectively. It also indicates the influence of decadal variations on the sea level trend from 1993 to 2014, with a rising trend of SSH in the western tropical Pacific and a declining trend in the eastern tropical Pacific over the last 22 years of decadal oscillations.
