| The 20―30-day oscillation of the global circulation and heavy precipitation over the lower reaches of the Yangtze River valley |
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| 基金项目： | Supported by the Program for the Fundamental Research of China Meteorological Administration (Grant No. 200726) |
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| 摘 要： | Based on the observational data in summer, the variations of intraseasonal oscillation (ISO) of the daily rainfall over the lower reaches of the Yangtze River valley (LYRV) were studied by using the non-integer spectrum analysis. The NCEP/NCAR reanalysis data for the period of 1979―2005 were analyzed by principal oscillation pattern analysis (POP) to investigate the spatial and temporal characteristics of principal ISO patterns of the global circulation. The relationships of these ISO patterns to the rainfa...
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| 关 键 词： | 20―30-day oscillation heavy precipitation process over reaches of Yangtze River valley principal oscillation pattern global atmospheric circulation models summer |
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