(1) Institute of Low Temperature Sciences, Hokkaido University
(2) Institute of Low temperature Science, Hokkaido University
(3) Hydrospheric Atmospheric Research Center, Nagoya University
Diurnal Variation of cloud clusters formed in Summer season in Eastern China was investigated mainly based on hourly GMS TBB data, rawinsonde data and Doppler radar data.
17 meso-scale cloud clusters occurred in August in Eeatern China and most of them caused the severe flood in 1998. All the meso-scale cloud clusters showed three types of diurnal variations. Type A and B developed well from midnight to early morning(around 23 to 2 LST) and from late afternoon to evening (around 17 to 20 LST), respectively. Type C developed both the midnight to early morning and late afternoon to evening. Cloud clusters with Type A and C diurnal variations were more intense than that with type B variations and were responsible for heavy rainfall. Three types of cloud clustes showed different trajectory, appearance time and life time. Meso-scale cloud clusters developed in the other month and other year in Eastern China also showed three types of diurnal cycles.
The development of low level jet over Meiyu-frontal zone would be responsible for the diurnal cycle of cloud clusters. The interaction between them will be discussed.
Submittal Information
Name :
Date :
Zhuxiao Li
31-May-01-11:35:56
Organization :
Theme :
Institute of Low Temperature Sciences, Hokkaido University, Japan
Theme 1
Address :
Presentation :
North 19, West 8, Sapporo, Institute of Low temperature Sciences, Hokkaido University
