干旱区研究

干旱区研究 ›› 2012, Vol. 29 ›› Issue (2): 251-256.

• 大气现象 • 上一篇    下一篇

敦煌戈壁地区净辐射变化特征

王超 , 韦志刚 , 李振朝 , 刘慧 , 魏红   

  1. 中国科学院寒旱区陆面过程与气候变化重点实验室 中国科学院寒区旱区环境与工程研究所，甘肃 兰州 730000
  • 收稿日期:2011-02-21 修回日期:2011-04-20 出版日期:2012-03-15 发布日期:2012-04-10
  • 作者简介:王超（1986-），男，四川绵阳人，在读博士，主要从事干旱气候研究. E-mail：wangchao@lzb.ac.cn
  • 基金资助:

    国家重点基础研究发展计划项目(2009CB421402)和国家自然科学基金项目(40730952，40875045)资助

Study on Variation of Net Radiation in the Dunhuang Gobi

 WANG  Chao- , WEI  Zhi-Gang- , LI  Zhen-Chao- , LIU  Hui- , WEI  Hong   

  1. Key Laboratory of Land Surface Process and Climate Change in Cold and Arid Regions, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China
  • Received:2011-02-21 Revised:2011-04-20 Online:2012-03-15 Published:2012-04-10

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被引次数

11

摘要： 利用敦煌双墩子戈壁试验站2008年12月至2009年12月的塔站观测资料，分析该地区净辐射的概率分布、日变化、年变化和典型天气下的变化特征，结果表明：① 净辐射在-100~0 W/m2之间存在一个明显的峰值分布区间，其年平均净辐射为43.88 W/m2；② 净辐射有明显的日变化规律，最大值出现在正午，最小值出现在日落后，净辐射日变化的季节差异明显；③ 在晴天、阴天和沙尘天气条件下，净辐射变化特征差别较大，变化规律、极值大小和到达极值时间均不相同，不同天气下的净辐射有其各自特殊性。

关键词: 戈壁, 陆面过程, 太阳活动, 净辐射, 敦煌

Abstract: In this paper, the probability distribution, daily and annual variation of net radiation and its change under typical weather conditions were analyzed based on the fieldobserved data at Shangdunzi Gobi Experiment Station in Dunhuang during the period from December 2008 to December 2009. The results are as follows: (1) There was an obvious peak distribution of net radiation in the range of -100-0 W/m2, and the average annual net radiation was 43.88 W/m2; (2) There was an obvious daily variation of net radiation, the net radiation was positive in daytime but negative at night, its maximum occurred at midday, and its minimum occurred at sunset. Seasonal difference of net radiation was obvious, the net radiation was the highest in summer and the lowest in winter; (3) Net radiation was quite different under different weather conditions including sunny, cloudy and sandstorm days.

Key words: Gobi, land surface process, sloar activity, net radiation, Dunhuang