ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
An Analysis of the Atmospheric Circulation Patternfor the First-Time Heavy Rain in Springin the Upper-Middle Reaches of Changjiang
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Abstract:
The dates and atmospheric circulation patterns of the heavy rain in spring were investigated based on data during 34 years from 1961 to 1994.It is found that the firsttime heavy rains in spring mostly (about 80%) occur in April;two necessary conditions for the heavy rain are that:the synoptic depression system appears in east of Tibet Plateau and a cold air mass,which moves from Siberia,intrudes into the depression system.
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