| 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].南京信息工程大学学报,2014(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： | 1. 安徽省气候中心，合肥，230031
2. 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(10KJB170007)；国家自然科学基金青年基金 |
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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 |
Characteristics of seasonal surface temperature variation over the Tibetan Plateau |
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| HE Dongyan,TIAN Hong,DENG Weitao.Characteristics of seasonal surface temperature variation over the Tibetan Plateau[J].Journal of Nanjing University of Information Science & Technology,2014(6):558-569. |
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| Authors: | HE Dongyan TIAN Hong DENG Weitao |
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| Affiliation: | HE Dongyan, TIAN Hong, DENG Weitao ( 1 Anhui Climate Center,Hefei 230031 2 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 Tibet-an Plateau using Empirical Orthogonal Function（EOF）.The results show that in spring,summer and winter,the sur-face 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 east-ern 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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