气候变化领域集成服务门户(CCPortal): Recent temperature trends at mountain stations on the southern slope of the central Himalayas

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DOI	10.1007/s12040-012-0257-8
	Recent temperature trends at mountain stations on the southern slope of the central Himalayas
	Kattel, Dambaru Ballab; Yao, Tandong
发表日期	2013
ISSN	0253-4126
EISSN	0973-774X
卷号	122 期号:1
英文摘要	Insufficient long-term in situ observations and complex topographic conditions pose major problems in quantifying the magnitude of climatic trends in mountainous regions such as Nepal. Presented here is three decades (1980-2009) of data on annual maximum, minimum and average temperature trends from 13 mountain stations on the southern slope of the central Himalayas. The stations are located at elevations between 1304 and 2566 m above sea level and with varied topography. Spatial analyses of the average temperature trend show warming in most of the stations. The magnitude of warming is higher for maximum temperatures, while minimum temperatures exhibit larger variability such as positive, negative or no change. These results are consistent with patterns reported in some parts of the Indian subcontinent and Upper Indus Basin, but different from conditions on the Tibetan Plateau (China), where the warming of minimum temperatures is more prominent than that of the maximum temperatures. From the temporal variations, a dramatic increase in temperature is observed in the latest decade, particularly in the average and maximum temperatures. The results from the cumulative sum chart analyses suggest that the thermal regime shifted in 1997. The dramatic enhancement of average temperature in the last decade is strongly consistent with the result of contemporary studies of the surrounding regions, where warming is attributed to an increase in anthropogenic greenhouse gases. However, as in the western Himalayas and the Upper Indus Basin, the mountain stations on the southern slope of the central Himalayas show variability in temperature trends, particularly for the minimum temperature. This inhomogeneous trend is likely ascribed to the differences in topography and microclimatic regime of the observed stations.
关键词	Temperature trends maximum temperature warming variability regime shift mountain stations central Himalayas
学科领域	Geology; Science & Technology - Other Topics
语种	英语
WOS研究方向	Geosciences, Multidisciplinary ; Multidisciplinary Sciences
来源期刊	JOURNAL OF EARTH SYSTEM SCIENCE
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/111693
作者单位	Chinese Acad Sci, Key Lab Tibetan Environm Changes & Land Surface P, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Kattel, Dambaru Ballab,Yao, Tandong. Recent temperature trends at mountain stations on the southern slope of the central Himalayas[J]. 中国科学院西北生态环境资源研究院,2013,122(1).
APA	Kattel, Dambaru Ballab,&Yao, Tandong.(2013).Recent temperature trends at mountain stations on the southern slope of the central Himalayas.JOURNAL OF EARTH SYSTEM SCIENCE,122(1).
MLA	Kattel, Dambaru Ballab,et al."Recent temperature trends at mountain stations on the southern slope of the central Himalayas".JOURNAL OF EARTH SYSTEM SCIENCE 122.1(2013).