| 青藏高原不同季节地表温度变化特征分析 |
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| 引用本文： | 何冬燕,田红,邓伟涛.青藏高原不同季节地表温度变化特征分析[J].南京气象学院学报,2014,6(6):558-569. |
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| 作者姓名： | 何冬燕 田红 邓伟涛 |
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| 作者单位： | 安徽省气候中心, 合肥, 230031;安徽省气候中心, 合肥, 230031;南京信息工程大学 气象灾害省部共建教育部重点实验室, 南京, 210044 |
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| 基金项目： | 安徽省自然科学基金(090415216);江苏省高校自然科学研究面上项目(10KJB17 0007);国家自然科学基金青年基金(41005050) |
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| 摘 要： | 基于欧洲中尺度气象预报中心(ECMWF)提供的ERA-Interim地表温度,利用经验正交函数(EOF)等方法,分析了青藏高原四季地表温度的时空变化特征.结果发现:青藏高原春、夏、冬季地表温度变化以整体型为主,并且大部地区地表温度呈现升高的趋势;秋季地表温度略有下降趋势,并且以东部和西部地表温度的反向型异常变化最为显著.此外还发现,青藏高原不同季节地表温度的异常变化具有一定的联系,其中整体型变化可以持续3个季节.
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| 关 键 词： | 青藏高原 地表温度 经验正交函数 异常变化 |
| 收稿时间： | 2013/12/17 0:00:00 |
Characteristics of seasonal surface temperature variation over the Tibetan Plateau |
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| HE Dongyan,TIAN Hong and DENG Weitao.Characteristics of seasonal surface temperature variation over the Tibetan Plateau[J].Journal of Nanjing Institute of Meteorology,2014,6(6):558-569. |
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| Authors: | HE Dongyan TIAN Hong and DENG Weitao |
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| Institution: | Anhui Climate Center, Hefei 230031;Anhui Climate Center, Hefei 230031;Key Laboratory of Meteorological Disaster of Ministry of Education, Nanjing University of Information Science & Technology, Nanjing 210044 |
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| Abstract: | The ERA-Interim surface temperature data from European Centre for Medium-Range Weather Forecasts (ECMWF) are used to analyze the spatial and temporal variation of the seasonal surface temperature over the Tibetan Plateau using Empirical Orthogonal Function(EOF).The results show that in spring,summer and winter,the surface temperature tends to increase in the whole Plateau without obvious spatial variation;while in autumn,surface temperature tends to decrease slightly in most area,and a significant opposite variation trend exists between the eastern and western area of the Plateau.In addition,there are some definite relations between the surface temperature anomaly variations in different seasons,and the integral type can last for 3 seasons. |
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| Keywords: | the Tibetan Plateau the surface temperature Empirical Orthogonal Function(EOF) anomaly variations |
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