Abstract:

Based on the surface weather charts of Meteorological Center,Melbourne, Australia and Antarctic Meteorological Center, Molodeznaya station, Antarctica, and satellite cloud pictures of NOAA 10 and NOAA 11, the center location of cyclones were determined during January to February, 1990 over Prydz Bay, Eastern Antarctica and Neighbouring Area, the active characteristics of these cyclones were discussed, the synoptic systems, synoptic situations and satellite pictures which correspond with strong wind were analysed. It is pointed out that: 1.26 cyclones activated over Prydz Bay from 6 Jan. to 28 Feb. 1990, almost one cyclone every other day. 2. Amount of cyclones and average speed of cyclones in January is more than that in February North of 60°S. 3. There were cyclones over Prydz Bay which can produce strong wind. Fronts and frontal cyclones were present in this area, they can also produce strong wind and heavy snow. Fronts moving southward haved a closed relations with high pressure ridge over 70°E and strong wind is inrretelated with cell cloud area of frontal cloud zone in satellite pictures.