摘要
本文根据实测风与温度记录计算了1957年7月11日到20日黄河中下游地区大量降水的水汽输送情况,并简单讨论水汽循环问题.
In this paper,the synoptic case of July 11—14,1957 is selected for computation of water vapour transport over Eastern China.During this period heavy precipitation has caused flood over lower Yellow River area.The flux of water through the cross sections along the 105°and 120°meridians and 26°,31°,36°and 42°latitudes are computed.The triangle method,with side length of 200 kin,is used for the computation of convergence and divergence of water vapour Hux.The results are checked with the observed precipitation distribution.It is found thai the accuracy of computation is reasonable.Same computations are also conducted for daily situations.From these computations,it is seen that even if the wind velocity increases rapidly with height in the troposphere,the water transport in the lower levels is Still of much more importance.It shows also that the land is a source of water vapour for the atmosphere.
作者
谢义炳
戴武杰
HSIEH YI-PING;TAI WU-JA(Pcking Unicersity;Central Institute of Meteorology,Central Weather Bureau)
出处
《气象学报》
1959年第2期173-185,共13页
Acta Meteorologica Sinica
