| 1961-2007年云南太阳总辐射时空变化特征 |
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| 引用本文： | 王学锋,朱勇,范立张,杨鹏武,杨晓鹏.1961-2007年云南太阳总辐射时空变化特征[J].气候变化研究进展,2009,5(1):29-34. |
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| 作者姓名： | 王学锋 朱勇 范立张 杨鹏武 杨晓鹏 |
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| 作者单位： | 云南省气候中心 |
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| 基金项目： | 云南省发展和改革委员会资助项目 |
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| 摘 要： | 根据云南省7个辐射站太阳总辐射资料和113个台站日照百分率资料，建立了1961-2007年全省太阳总辐射时间序列，运用旋转主分量方法将全省分为4个区，并在此基础上研究云南太阳总辐射的时空分布和变化特征。结果表明：云南太阳总辐射呈中部多，西南部次之，东部及西北部少的分布特征。1961-2007年呈波段减少的变化趋势，线性倾向率为-0.64%/10a，其中中部及东部显著减少，西南部略有增加。其间出现两次突变，一次是1986年的显著减少，另一次是1993年以后的回升。分析表明，相对湿度和云量是影响太阳总辐射变化的主要气象因子。
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| 关 键 词： | 云南省 太阳总辐射 趋势 突变 |
| 收稿时间： | 2008-5-15 |
| 修稿时间： | 2008-8-7
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Spatial-Temporal Variations of Solar Global Radiation in Yunnan Province During 1961-2007 |
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| Wang Xuefeng,Zhu Yong,Fan Lizhang,Yang Pengwu,Yang Xiaopeng.Spatial-Temporal Variations of Solar Global Radiation in Yunnan Province During 1961-2007[J].Advances in Climate Change,2009,5(1):29-34. |
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| Authors: | Wang Xuefeng Zhu Yong Fan Lizhang Yang Pengwu Yang Xiaopeng |
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| Institution: | Yunnan Climate Center;Kunming 650034;China |
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| Abstract: | Based on the observation data of solar global radiation at 7 stations and relative sunshine at 113 stations of Yunnan Province, the time series of solar global radiation over the whole province during 1961-2007 were calculated. The characteristics of the spatial-temporal distribution and variation of solar global radiation were studied in the province as well as in the 4 climate subareas, which were determined by using the rotated principal component method. The main results are as follows: annual mean solar global radiation was more in the central part (I), next in the southwest part (IV), and least in the east part (II) and the northwest part (III) of Yunnan Province. The annual solar global radiation fluctuatedly declined at a mean rate of -0.64%/10a in 1961-2007; it remarkably decreased in the central part and the east part, but slightly increased in the southwest part. Two abrupt climate changes of solar global radiation took place in the period of 1961-2007; the first abrupt decrease occurred in about 1986, and the second abrupt rise occurred in about 1993. The analysis results show that relative humidity and total cloud cover are the two important factors influencing the variations of solar global radiation. |
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| Keywords: | Yunnan Province solar global radiation climate trend abrupt change |
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