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DOI	10.1002/joc.3512
	Variability of temperature in the Tibetan Plateau based on homogenized surface stations and reanalysis data
	You, Qinglong; Fraedrich, Klaus; Ren, Guoyu; Pepin, Nick; Kang, Shichang
发表日期	2013
ISSN	0899-8418
EISSN	1097-0088
卷号	33 期号:6
英文摘要	The Tibetan Plateau (TP) with an average elevation of over 4000 m a.s.l. is the world's highest and most extensive highland. The scarcity of climatic observations limits our understanding of surface air temperature change in the region. Thus, we compare temperatures and their trends from 71 homogenized surface stations (with elevations above 2000 m a.s.l.) with National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) Reanalysis (NCEP/NCAR hereafter) and European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis (ERA-40 hereafter) in the eastern and central TP during 19612004. For current climatology, ERA-40 is more similar to the surface stations than NCEP/NCAR. Compared with surface stations, both NCEP/NCAR and ERA-40 reanalyses have cold biases, which are mainly a result of differences in topographical height, and station aspect and slope. Warming trends at the surface stations are on average stronger than in both reanalyses, but ERA-40 captures the surface warming more clearly than NCEP/NCAR on an annual and seasonal basis. Since ERA-40 more closely represents the surface temperatures and their trends in the central and eastern TP, ERA-40 predictions are selected to examine change in the western TP where there are few surface stations. NCEP/NCAR, on the other hand, is more representative of free air temperature conditions. The observation minus reanalysis' (OMR) method can be used to estimate the impact of surface changes on climate by computing the difference between surface observations and NCEP/NCAR (which only contains the forcing influencing the assimilated atmospheric trends). The OMR trend is significantly increasing but the extent to which the changes in local environment are responsible needs further study. Copyright (c) 2012 Royal Meteorological Society
关键词	warming trend elevation dependency Tibetan Plateau reanalysis
学科领域	Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/111685
作者单位	Chinese Acad Sci, Lab Tibetan Environm Changes & Land Surface Proc, Inst Tibetan Plateau Res, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	You, Qinglong,Fraedrich, Klaus,Ren, Guoyu,et al. Variability of temperature in the Tibetan Plateau based on homogenized surface stations and reanalysis data[J]. 中国科学院西北生态环境资源研究院,2013,33(6).
APA	You, Qinglong,Fraedrich, Klaus,Ren, Guoyu,Pepin, Nick,&Kang, Shichang.(2013).Variability of temperature in the Tibetan Plateau based on homogenized surface stations and reanalysis data.INTERNATIONAL JOURNAL OF CLIMATOLOGY,33(6).
MLA	You, Qinglong,et al."Variability of temperature in the Tibetan Plateau based on homogenized surface stations and reanalysis data".INTERNATIONAL JOURNAL OF CLIMATOLOGY 33.6(2013).