Spatial patterns of climatological temperature lapse rate in mainland   China: A multi-time scale investigation

doi:10.1002/2014JD022978

CORC > 北京大学 > 城市与环境学院

	Spatial patterns of climatological temperature lapse rate in mainland China: A multi-time scale investigation
	Li, Yue ; Zeng, Zhenzhong ; Zhao, Lin ; Piao, Shilong
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
	2015
关键词	lapse rate altitudinal gradient air temperature China spatiotemporal characteristics AIR-TEMPERATURE CLIMATE-CHANGE NORTHERN ENGLAND TIBETAN PLATEAU WEATHER
DOI	10.1002/2014JD022978
英文摘要	Quantitative evaluation of how mountain ecosystems respond to climate change requires accurate estimates of temperature at high elevations. One approach to estimating highland temperature is to extrapolate temperatures from low elevations based on previous observations of the environmental temperature lapse rate ((local)). However, our understanding of (local) is still very limited. Here we use daily mean, maximum, and minimum temperature (T-mean, T-max, and T-min) data from 523 meteorological stations in mainland China to estimate the spatiotemporal patterns of the climatological (local) ((local)(T-mean), (local)(T-max), and (local)(T-min)). The patterns of all (local) display (1) a significant (P<0.05) spatial difference between southern China (4 to 6Kkm(-1)) and northern China (including the Qinghai-Tibetan Plateau, >6Kkm(-1)) and (2) a distinct seasonal variation, with higher (local) occurring in summer and lower in winter (except for the Qinghai-Tibetan Plateau where the seasonality is reversed). In addition, the seasonal amplitude of (local)(T-max) exceeds that of (local)(T-min). Physically, (local)(T-max) is significantly influenced by cloud cover (partial correlation coefficients: R=-0.25, P<0.001) and regulated by precipitation, with (local) (T-max) increasing with T-max in humid regions while decreasing in drier regions. At night, the spatial pattern of (local) (T-min) is determined by T-min (R=-0.51, P<0.001) due to temperature control on the saturated adiabatic lapse rate. Our results demonstrate that the magnitude of (local) obviously differs in regional distributions and seasonal variations and may be a result of the interactions among the climatic factors. To improve the accuracy of the extrapolation method requires spatial patterns of (local) rather than just a constant universal value. Key Points; National Basic Research Program of China [2013CB956303]; National Natural Science Foundation of China [41171202, 41125004]; National Youth Top-notch Talent Support Program in China; SCI(E); ARTICLE; slpiao@pku.edu.cn; 7; 2661-2675; 120
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/420455]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Li, Yue,Zeng, Zhenzhong,Zhao, Lin,et al. Spatial patterns of climatological temperature lapse rate in mainland China: A multi-time scale investigation[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2015.
APA	Li, Yue,Zeng, Zhenzhong,Zhao, Lin,&Piao, Shilong.(2015).Spatial patterns of climatological temperature lapse rate in mainland China: A multi-time scale investigation.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES.
MLA	Li, Yue,et al."Spatial patterns of climatological temperature lapse rate in mainland China: A multi-time scale investigation".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (2015).