Geographic distribution and life cycle of mesoscale convective system in China and its vicinity

【摘要】 <正> A census of mesoscale convective systems (MCS) has been extended from mesoscale convective complexes (MCCs) to more general meso-a scale convective systems (Ma CSs) and meso-β scale convective systems (Mβ CSs). 234 Ma CSs and 585 Mβ CSs were found in China and its vicinity during the summers of 1993-1995 by the GMS satellite infrared images. The geographic distribution with higher representative shows that the Ma CSs occurred in three favorable zones. One of them, the middle-to-lower reaches basin of the Yellow River and the Yangtze River, were not found in the past researches of MCC census. There are two kinds of life cycles of Ma CS: one is similar to the life cycle of MCC occurring at night and dissipating early in the morning; the other occurs in the afternoon and dissipates in the evening.更多还原

【Abstract】 A census of mesoscale convective systems (MCS) has been extended from mesoscale convective complexes (MCCs) to more general meso-a scale convective systems (Ma CSs) and meso-β scale convective systems (Mβ CSs). 234 Ma CSs and 585 Mβ CSs were found in China and its vicinity during the summers of 1993-1995 by the GMS satellite infrared images. The geographic distribution with higher representative shows that the Ma CSs occurred in three favorable zones. One of them, the middle-to-lower reaches basin of the Yellow River and the Yangtze River, were not found in the past researches of MCC census. There are two kinds of life cycles of Ma CS: one is similar to the life cycle of MCC occurring at night and dissipating early in the morning; the other occurs in the afternoon and dissipates in the evening.更多还原