A Study on the ENSO Effects on the Sea Level of the Java Sea Using the Time Lag Analysis and an Oceanic General Circulation Model

摘要

The El Ni?o Southern Oscillation (ENSO) effects on the sea level of the Java Sea are studied using the time lag analysis and the Hybrid Coordinate Ocean Model (HYCOM). The time lag analysis results show that the time lags among wind, Southern Oscillation Index (SOI) and sea level changes are 0 to 2 month lag. The HYCOM-estimated sea levels are validated using tide gauge sea levels. Due to the shallowness of the Java Sea, the wind-induced mixed layer is easily reaches to the bottom. The HYCOM-estimated volume transport is compared with European Remote Sensing (ERS) satellite wind vectors. The HYCOM results show that the ENSO effects on the sea level greater than the wind effect.