On the intraseasonal oscillation(ISO) time scale,the zonal propagation of atmospheric ISO in 2006 had its own uniqueness;the westward and stationary ISO along the latitude belt of the Yangzi River valley was weaker while the eastward and stationary ISO precipitation in Southern China.

Furthermore, the features of intra-seasonal oscillation related to the onset of ENSO episode were also discussed.

The NCEP/NCAR 850-hPa zonal wind reanalysis data are calculated by using the band-pass filter to study the propagating characters of the atmospheric intraseasonal oscillation(ISO) in the East Asian monsoon region.

The NCEP/NCAR 850 hPa zonal wind reanalysis data are calculated by using the band-pass filter to study the atmospheric intraseasonal oscillation,which can express the activity character of the East Asian summer monsoon stream.

Atmospheric intraseasonal oscillation(ISO) is very important in the long-range weather and climate variation.

Performance Contrast between Two Filters in Madden-Julian Oscillations Analysis;

The SST intraseasonal variability is closely associated with the structure of Madden-Julian oscillation(MJO).

Based on the data from remote sensing and in situ observation,and the re-analysis data of air-sea fluxes,lag correlation and composite analysis are used to analyze the physical structure of Madden-Julian oscillation(MJO)in the tropical Indian Ocean during winter.