Some Statistical Properties Of The Mid-latitude Ocean-atmosphere Interaction In The North Pacific And The North Atlantic

Based on the observation data (NCEP/NCAR , COADS) and the output data from Flexible Coupled Ocean-Atmosphere General Circulation Model, some statistical methods such as Maximum Covariance Analysis, regression method, composite analysis and relation analysis have been used to investigate some properties of the mid-latitude ocean-atmosphere interaction in the North Pacific and North Atlantic in this paper. The effect of local sea surface temperature (SST) anomalies on the atmosphere in the North Pacific is detected. The relationship between the Kuroshio transport east of Taiwan and the oceanic and atmospheric anomalies in the northwest Pacific in winter is discovered. The relation among the North Atlantic atmosphere circulation anomaly, the SST anomaly and the heat flux anomaly is examined. Some new statistical features have been found as follows:In the North Pacific, besides the strong remote ENSO impact in winter and the atmosphere dominantly forcing on the ocean , the MCA analysis suggests a significant local feedback mode: forced by horseshoe SSTA in the former winter, the atmospheric response in summer resembles a wave-train pattern over the mid-latitude North Pacific. This local response may imply the former winter SST anomaly could be one of the forecast indexes for summer atmospheric circulation.Kurishio transport east of Taiwan in the later fall has a quite good relationship with the winter oceanic and atmospheric anomaly in northwest...