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DOI	10.1007/s11430-014-4973-6
	The role of cloud height and warming in the decadal weakening of atmospheric heat source over the Tibetan Plateau
	Wu Hui; Yang Kun; Niu XiaoLei; Chen YingYing
通讯作者	Yang, K (通讯作者)
发表日期	2015
ISSN	1674-7313
EISSN	1869-1897
起始页码	395
结束页码	403
卷号	58 期号:3
英文摘要	The warming over the Tibetan Plateau (TP) is very significant during last 30 years, but the thermal forcing has been weakened. The thermal weakening is attributed mainly to the enhancement of the TOA (top of atmosphere) outgoing radiation. This enhancement is opposite to the greenhouse-gas-induced weakening of the global mean TOA outgoing radiation and is also unable to be explained by the observed decrease of total cloud cover. This study presents the importance of cloud height change and the warming over the TP in modulating the TOA radiation budget and thus the thermal forcing during spring and summer. On the basis of surface observations and satellite radiation data, we found that both the TOA outgoing shortwave radiation and longwave radiation were enhanced during this period. The former enhancement is due mainly to the increase of low-level cloud cover, which has a strong reflection to shortwave radiation, especially in summer. The latter enhancement is caused mainly by the planetary warming, and it is further enhanced by the decrease of total cloud cover in spring, as clouds extinguish outgoing longwave radiation emitted from the land surface. Therefore, the radiative cooling enhancement and thus the thermal weakening over the TP is a response of the earth-atmosphere system to the unique change of cloud cover configuration and the rapid warming of the land surface. However, these trends in cloud cover and TOA outgoing radiation are not well represented in four reanalyses.
关键词	ASIAN SUMMER MONSOON EARTHS RADIATION BUDGET ERA-INTERIM REANALYSIS CLIMATE TREND
英文关键词	heat source; radiative cooling; trend; Tibetan Plateau; cloud cover
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000349767600007
来源期刊	SCIENCE CHINA-EARTH SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258442
推荐引用方式 GB/T 7714	Wu Hui,Yang Kun,Niu XiaoLei,et al. The role of cloud height and warming in the decadal weakening of atmospheric heat source over the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2015,58(3).
APA	Wu Hui,Yang Kun,Niu XiaoLei,&Chen YingYing.(2015).The role of cloud height and warming in the decadal weakening of atmospheric heat source over the Tibetan Plateau.SCIENCE CHINA-EARTH SCIENCES,58(3).
MLA	Wu Hui,et al."The role of cloud height and warming in the decadal weakening of atmospheric heat source over the Tibetan Plateau".SCIENCE CHINA-EARTH SCIENCES 58.3(2015).