Temperature variability within Makassar Strait

Recent mooring observations of ocean temperature provide the first high res olution, long term record of temperature variability in the Makassar Strait of the Indonesian Seas. The mooring observations span the entire cycle of the strong 1997/1998 El Nino. A high correlation (r = 0.67) is found betwee n variability in the average thermocline temperature, to variability in the southward Makassar volume transport: during high (low) volume transport, t he average temperature of the thermocline is also high(low). In addition, f rom nearly 15 years of XBT data, the Makassar thermocline temperature is sh own to be highly correlated (r = 0.77) to SOI. This reveals that the Makass ar temperature field - when coupled with the throughflow transmits the equa torial Pacific Fl Nino and La Nina temperature fluctuations into the Indian Ocean. The ENSO variability in the internal energy transport is calculated : 0.63 PW during the La Nina months of December 1996 through February 1997, and 0.39 PW during the El Nino months of December 1997 through February 19 98.