Statistical Characteristics of sea surface height and sea surface temperature in the Western North Pacific

  • Hwang, Byong-Jun (Remote Sensing research Laboratory, Meteorological Research Institute(METRI)) ;
  • Kim, So-Hyun (Remote Sensing research Laboratory, Meteorological Research Institute(METRI)) ;
  • Chung, Hyo-Sang (Remote Sensing research Laboratory, Meteorological Research Institute(METRI))
  • Published : 1999.11.01

Abstract

SSH(Sea Surface Height) from TOPEX/Poseidon and SST data are analyzed to estimate characteristics of annual and inter-annual variations in the East Asian seas(110E - l80E, 20N - 50N) from November 1992 to May 1998. In EOF analysis of SSH and SST, 57% and 97% of the variance are represented by the first two modes. The first mode of SSH and SST shows strong annual variations expected for steric changes. The second mode of SSH shows a long-term variation, but that of SST shows 3 - 4month offset from annual variation. In the EOF analysis of the SSH and SST, 61% and 54% of the total variance are represented by the first three modes. The first mode represented a long-term variation, and the third mode reflected the bi-ennial variation. The first three mode were not strongly correlated with ENSO. We further apply Canonical Correlation Analysis(CCA) to find the dominant correlation patterns with ENSO.

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