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冰川冻土 ›› 1983, Vol. 5 ›› Issue (4): 9-18.

• 研究论文 • 上一篇    下一篇

中国积雪的分布

李培基, 米德生   

  1. 中国科学院兰州冰川冻土研究所
  • 收稿日期:1982-03-20 出版日期:1984-08-25 发布日期:2012-04-26

Distribution of Snow Cover in China

Li Peiji, Mi Desheng   

  1. Lanzhou Institute of Glaciology and Cryopedology, Academia Sinica
  • Received:1982-03-20 Online:1984-08-25 Published:2012-04-26

摘要: 早在建国初期,我国老一辈气候学家,为适应大规模社会主义建设的需要,面临资料缺乏的困难,利用平均最大积雪深度,探讨了我国积雪分布和区划问题[1、2],为我国积雪分布的研究奠定了基础。后来,中央气象局气候资料研究室根据全国350个地面台站最大积雪深度的观测资料,分析了我国最大积雪分布[3]。中国科学院兰州高原大气物理研究所绘制了青藏高原最大积雪深度分布图1)(1:1500万)。

Abstract: Based on the climatic data of 1600 stations up to 1980, and on the latest aerial maps and ERTS images, the map of duration of snow cover in China has been prepared at a scale of 1:4000000.In this paper, we discussed the distribution of snow cover of China. On annual average of snow covet days, China is divided into five regions. The snow cover area of China amounts to 900×104 km2.1.Regions permanently covered by snow and ice have a total area of 5.65×104 km2, with 365 snow cover days.2.Regions of stable seasonal snow cover, 420×104 km2, including the Qinghai-Xizang Plateau (except the Northern plateau of Xizang and the Qaidam basin), the Northeast China and the Nei Monggol, the North Xinjiang and Tianshan mountain with over 60 snow cover days.3.Regions of unstable seasonal snow cover have a area of 480×104 km2 in China: (1) Distinct regular unstable snow cover areas, from 10 to 60 snow cover days mostly in winter; (2) Regions of irregular and unstable snow cover,snow cover occurred in some years but not in other years.4.Regions without snow cover only 55? 104 km2.