地理科学 ›› 1986, Vol. 6 ›› Issue (2): 101-109.doi: 10.13249/j.cnki.sgs.1986.02.101

• 论文 •    下一篇

中国的降水变率及其差距

冯丽文, 郑斯中   

  1. 中国科学院地理研究所 北京
  • 出版日期:1986-03-20 发布日期:1986-03-20

VARIABILITY OF PRECIPITATION AND ITS DEVIATION IN CHINA

Feng Liwen, Zheng Sizhong   

  1. Institue of Geography, Academia Sinica, Beijing
  • Online:1986-03-20 Published:1986-03-20

摘要: 本文计算了我国1月、7月和全年降水变率及其差距。指出我国降水变率从夏季型式向冬季型式转变发生在11月,而从冬季型式向夏季型式转换,沿经度方向的变化发生在5月,沿纬度方向的变化发生在6月。

Abstract: In this paper the variability of the precipitation, for annual and twelve monthes, was calculated in China, the formular is Vrx/x?100 In addition, the deviation of variability was calculated according to the method suggested by V. Conrad. The data of the precipitation used in this paper were collected from about 160 stations for the period of 1951-1980. Maps of variabilities of precipitation and that of their deviations for annual, January and July were presented respectively. The seasonal variations for the monthly variability of precipitation along both the latitudinal direction and the longitudinal direction were also discussed. It is found that the variability of precipitation in China converts from its summer pattern to winter pattern for both the latitudianal direction and the longitudinal direction in November. But the conversion from winter pattern to summer pattern for longituginal direction occurs in May and for latitudinal direction occurs in June.