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	Observational evidence from two mountainous regions that near-surface wind speeds are declining more rapidly at higher elevations than lower elevations: 1960-2006
	Mcvicar T. R. ; Van Niel T. G. ; Roderick M. L. ; Li L. T. ; Mo X. G. ; Zimmermann N. E. ; Schmatz D. R.
	2010
关键词	complex terrain reference evapotranspiration pan evaporation climatic-change snow climatology vegetation impacts trends model
英文摘要	Coupling recent observed declines of terrestrial mid-latitude near-surface wind speed (u) with knowledge that high-elevation sites rapidly experience climate change led to an assessment of the regional near-surface elevation dependence of u (u(Z)) at two mountainous regions (central China and Switzerland). The monthly u(Z) were calculated from 1960-2006. In both regions u(Z) were higher in winter (similar to 2.25 m s(-1) km(-1)) compared to summer (similar to 1.25 m s(-1) km(-1)). For the first time u(Z) trends were calculated, the results were strongly seasonal, ranging from similar to-0.025 m s(-1) km(-1) a(-1) in winter to similar to-0.005 m s(-1) km(-1) a(-1) in summer. For both regions u(Z) trend results showed that u has declined more rapidly at higher than lower elevations, even though different u dynamics were observed. The u(Z) trends have important implications for climatic changes of coupled land-surface/boundary-layer processes (such as evapotranspiration) at high-elevation regions where much of the globe's fresh water is derived. Citation: McVicar, T. R., T. G. Van Niel, M. L. Roderick, L. T. Li, X. G. Mo, N. E. Zimmermann, and D. R. Schmatz (2010), Observational evidence from two mountainous regions that near-surface wind speeds are declining more rapidly at higher elevations than lower elevations: 1960-2006, Geophys. Res. Lett., 37, L06402, doi:10.1029/2009GL042255.
出处	Geophysical Research Letters
卷	37
收录类别	SCI
语种	英语
ISSN号	0094-8276
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/23279]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Mcvicar T. R.,Van Niel T. G.,Roderick M. L.,et al. Observational evidence from two mountainous regions that near-surface wind speeds are declining more rapidly at higher elevations than lower elevations: 1960-2006. 2010.

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