热带地理

›› 1986, Vol. 6 ›› Issue (1): 45-50.

• 论文 • 上一篇    下一篇

撒哈拉荒漠气候的区域分异

林红月   

  1. 华南师范大学地理系
  • 出版日期:1986-01-30 发布日期:1986-01-30

REGIONAL CLIMATIC DIFERENCES OF THE SAHARA DESERT

LIN Hongyue   

  1. Department of Geography, South China Normal University
  • Online:1986-01-30 Published:1986-01-30

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摘要： 撒哈拉荒漠(Sahara Desert)位于非洲北部,面积约900万平方公里,是世界上面积最大的荒漠.撒哈拉荒漠气候具有高温、少雨、干燥、多风沙的基本特征,是热带亚热带荒漠气候的典型.然而,由于撒哈拉面积广大,跨越的纬度约18°(15-33°N),其南北天气系统不同:北部边缘冬季受温带天气系统的影响,南部边缘夏季则常受赤道天气系统的控制(图1),所以荒漠南北两侧无论气温、降水的季节变化以及其他气候特征都有一定的差异.同时,大洋沿岸受海洋及冷流的影响,与内陆荒漠气候亦存在差异.因此,在撒哈拉内部有必要并且可以进行次一级气候区的划分.

Abstract: The Sahara is the biggest desert in the world. Its characteristics of climate are high temperature, little rainfall, dry and windy. The Sahara Desert may be divided into four climatic regions: 1.The Northern Winter-rain Region. It may be subdivided into the Mediterranean Coast Province and the Atlas South-foot Province.2. The Southern Summer-rain Region.3. The Western Coast Foggy Region.4. The Central Extremely Arid Region. It may be subdivided into the East central Extremely Arid Province, the Central Highland Arid Province and the west-central Extremely Province.