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Western Pacific international meeting and workshop on Toga Coare : proceedings

Authors
  • Hénin, Christian
Publication Date
Jan 01, 1989
Source
Horizon / Pleins textes
Keywords
Language
English
License
Unknown
External links

Abstract

Distribution of temperature, salinity and dynamic topography, using data from eleven SURTROPAC, three PROPPAC and three US/PRC cruises between january 1989, is examined. Long term changes of dynamic topography give a new view of oceanic variability in the western equatorial Pacific ocean : a) after the 1982-1983 El Nino event a drastic change occurs between 1984 and 1985 with a sudden accumulation of warm waters, b) a steady and continuous loss of heat appears since 1985 with a shallowing of the thermocline culminating in 1987 with the associated El Nino episode. Continuous temperature data from Atlas moorings confirm the slow tendancy between 1985 and 1987 giving a new insight of the el Nino scenario in the western Pacific. These cruises also give a more realistic temperature/salinity relationship along 165°E and have therefore made it possible to determine the accuracy of dynamic topography obtained by the Atlas temperature data set and Levitus T/S climatology.

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