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中国地区日照时数近50年来的变化特征

李慧群 付遵涛 闻新宇 黄建斌

李慧群, 付遵涛, 闻新宇, 黄建斌. 中国地区日照时数近50年来的变化特征[J]. 气候与环境研究, 2013, 18(2): 203-209. doi: 10.3878/j.issn.1006-9585.2012.11052
引用本文: 李慧群, 付遵涛, 闻新宇, 黄建斌. 中国地区日照时数近50年来的变化特征[J]. 气候与环境研究, 2013, 18(2): 203-209. doi: 10.3878/j.issn.1006-9585.2012.11052
LI Huiqun, FU Zuntao, WEN Xinyu, HUANG Jianbin. Characteristic Analysis of Sunshine Duration Change in China during the Last 50 Years[J]. Climatic and Environmental Research, 2013, 18(2): 203-209. doi: 10.3878/j.issn.1006-9585.2012.11052
Citation: LI Huiqun, FU Zuntao, WEN Xinyu, HUANG Jianbin. Characteristic Analysis of Sunshine Duration Change in China during the Last 50 Years[J]. Climatic and Environmental Research, 2013, 18(2): 203-209. doi: 10.3878/j.issn.1006-9585.2012.11052

中国地区日照时数近50年来的变化特征

doi: 10.3878/j.issn.1006-9585.2012.11052
基金项目: 国家重点基础研究发展规划项目2010CB428606

Characteristic Analysis of Sunshine Duration Change in China during the Last 50 Years

  • 摘要: 根据国家气象信息中心给出的逐日日照时数资料, 利用经验正交函数分解(EOF)和Mann-Kendall方法分析了1956~2005年中国地区日照时数的变化趋势、突变情况、时空分布和季节变化特征。研究表明:中国绝大部分地区近50年来日照时数总量呈减少的趋势, 在1980年前后大部分观测站显示有突变, 20世纪 90年代之后减少趋势有所缓解, 保持在稳定偏低的状态;此类变化趋势在东南地区较西北地区更为显著。且日照时数的上述变化主要由于夏季日照的变化造成的。
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出版历程
  • 收稿日期:  2011-04-06
  • 修回日期:  2013-01-30

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