气候变化领域集成服务门户(CCPortal): Observed climatology and trend in relative humidity in the central and eastern Tibetan Plateau

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DOI	10.1002/2014JD023031
	Observed climatology and trend in relative humidity in the central and eastern Tibetan Plateau
	You, Qinglong; Min, Jinzhong; Lin, Houbo; Pepin, Nick; Sillanpaa, Mika; Kang, Shichang
发表日期	2015
ISSN	2169-897X
EISSN	2169-8996
卷号	120 期号:9
英文摘要	Monthly surface relative humidity (RH) data for 71 stations in the Tibetan Plateau (TP) provided by the National Meteorological Information Center/China Meteorological Administration are compared with corresponding grid points from the National Center for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR hereafter) reanalysis. Mean climatologies, interannual variabilities, and trends calculated by the Mann-Kendal method are analyzed during 1961-2013. The annual regional long-term mean surface RH is 55.3%, with a clear maximum in summer (66.4%) and minimum in winter (44.9%). Compared with observations, NCEP/NCAR overestimates RH in all seasons, especially in spring (18.2%) and winter (17.8%). Mean annual regional surface RH has decreased by -0.23%decade(-1) and even more rapidly in summer (-0.60%decade(-1)) and autumn (-0.39%decade(-1)). The reduction of surface RH is also captured by the NCEP/NCAR reanalysis at the surface, 400, 500, and 600hPa. A particularly sharp reduction of RH since the mid-1990s is evident in both data sets, in line with rapid warming over the plateau. This suggests that moisture supply to the plateau from the Arabian Sea and the Bay of Bengal is limited and that variability and trends of surface RH over the TP are not uniquely driven by the Clausius-Clapeyron relationship.
关键词	Tibetan Plateau
学科领域	Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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/111768
作者单位	Nanjing Univ Informat Sci & Technol, Climate Dynam Res Ctr, Int Lab Climate & Environm Change, Nanjing, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	You, Qinglong,Min, Jinzhong,Lin, Houbo,et al. Observed climatology and trend in relative humidity in the central and eastern Tibetan Plateau[J]. 中国科学院西北生态环境资源研究院,2015,120(9).
APA	You, Qinglong,Min, Jinzhong,Lin, Houbo,Pepin, Nick,Sillanpaa, Mika,&Kang, Shichang.(2015).Observed climatology and trend in relative humidity in the central and eastern Tibetan Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,120(9).
MLA	You, Qinglong,et al."Observed climatology and trend in relative humidity in the central and eastern Tibetan Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 120.9(2015).