抄録
A new analyzing method of atmospheric wave propagation in the GMS data is developed using wavelet transformation (WT). The first one of two parameters (dilatation and translation) which are variables in WT is fixed in specified period on the subjective waves. Behavior of the waves is inspected by arranging those results on each point sequentially. This method is applied to GMS IR time sequential data sets (1980-1994) covering the semi-global area. 5 days variation in ITCZ (Inter Tropical Convergence Zone) and inter-seasonal variation are analyzed as typical samples of this method. Intensities on time axis, wavelengths and wave velocities of subjective waves are shown by time vs. longitude diagram. Distributions of the waves are also shown by time cross sections of latitude, longitude and time. This analyzing method is very useful to study atmospheric waves using GMS data.
