气候变化领域集成服务门户(CCPortal): Comparison of Different Generation Mechanisms of Free Convection between Two Stations on the Tibetan Plateau

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DOI	10.1007/s00376-018-7195-6
	Comparison of Different Generation Mechanisms of Free Convection between Two Stations on the Tibetan Plateau
	Zhang, Lang; Ma, Yaoming; Ma, Weiqiang; Wang, Binbin
通讯作者	Ma, YM (通讯作者)
发表日期	2018
ISSN	0256-1530
EISSN	1861-9533
起始页码	1137
结束页码	1144
卷号	35 期号:9
英文摘要	Based on high-quality data from eddy covariance measurements at the Qomolangma Monitoring and Research Station for Atmosphere and Environment (QOMS) and the Southeast Tibet Monitoring and Research Station for Environment (SETS), near-ground free convection conditions (FCCs) and their characteristics are investigated. At QOMS, strong thermal effects accompanied by lower wind speeds can easily trigger the occurrence of FCCs. The change of circulation from prevailing katabatic glacier winds to prevailing upslope winds and the oscillation of upslope winds due to cloud cover are the two main causes of decreases in wind speed at QOMS. The analysis of results from SETS shows that the most important trigger mechanism of FCCs is strong solar heating. Turbulence structural analysis using wavelet transform indicates that lower-frequency turbulence near the ground emerges from the detected FCCs both at QOMS and at SETS. It should be noted that the heterogeneous underlying surface at SETS creates large-scale turbulence during periods without the occurrence of FCCs. Regarding datasets of all seasons, the distribution of FCCs presents different characteristics during monsoonal and non-monsoonal periods.
关键词	QUALITY ASSESSMENT FLUX MEASUREMENTS SITES TOOLS
英文关键词	free convection conditions; eddy covariance; complex terrain; Tibetan Plateau
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000435941100004
来源期刊	ADVANCES IN ATMOSPHERIC 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/259130
推荐引用方式 GB/T 7714	Zhang, Lang,Ma, Yaoming,Ma, Weiqiang,et al. Comparison of Different Generation Mechanisms of Free Convection between Two Stations on the Tibetan Plateau[J]. 中国科学院青藏高原研究所,2018,35(9).
APA	Zhang, Lang,Ma, Yaoming,Ma, Weiqiang,&Wang, Binbin.(2018).Comparison of Different Generation Mechanisms of Free Convection between Two Stations on the Tibetan Plateau.ADVANCES IN ATMOSPHERIC SCIENCES,35(9).
MLA	Zhang, Lang,et al."Comparison of Different Generation Mechanisms of Free Convection between Two Stations on the Tibetan Plateau".ADVANCES IN ATMOSPHERIC SCIENCES 35.9(2018).