华南水汽涡旋输送分析

水汽输送按时空分离为平均输送和涡旋输送。对华南区域１９９４年前汛期的水汽输送所做的分析表明，季平均各种涡旋输送量与总输送量相比不到１０％，月平均气柱涡旋输送量约占总输送量的１０％—２０％。在夏季风爆发前和暴雨期，旬平均水汽涡旋输送强烈，最大可达到总输送量的５至６倍，这时期不能用平均输送代表总输送。最后给出了用气候平均量计算的各时段水汽输送对总输送的代表性的估计。

STUDY ON EDDY TRANSPORT OF WATER VAPOR OVER SOUTH CHINA

Water vapor transport is decomposed into mean transport and eddy transport. Analysis of water vapor over South China during the first rainy season of 1994 shows that difference between season mean transport and season total transport is less than 10%. For month and for ten-day average the difference is more than that. The transient transport of water vapor is the least among all kinds of eddy transport. Its amount is only ±2% of total transport for column. The constant wave transport is the largest. Sometime it may be 5-6 times of total transport.