气候变化领域集成服务门户(CCPortal): Representing the Heat-to-Moisture Transport Efficiency in Stable Conditions: An Extension of Two Different Approaches

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DOI	10.1007/s13143-019-00155-4
	Representing the Heat-to-Moisture Transport Efficiency in Stable Conditions: An Extension of Two Different Approaches
	Guo, Xiaofeng; Yang, Kun; Yang, Wei; Zhao, Long; Li, Shenghai; Ding, Baohong
通讯作者	Guo, XF (通讯作者)
发表日期	2020
ISSN	1976-7633
EISSN	1976-7951
起始页码	603
结束页码	611
卷号	56 期号:4
英文摘要	Using eddy-covariance turbulence measurements over a Tibetan glacier, we present a description of scalar turbulence characteristics in the stable boundary layer. Interesting behaviours are demonstrated in terms of temperature-humidity de-correlation and dissimilarity. That is, a lack of perfect correlation occurs between the two scalars (i.e., correlation coefficients <1 in magnitude); overall, sensible heat is more efficiently transported than water vapour over snow and ice surfaces. Such behaviours provide evidence of departures from the idealized expectation of Monin-Obukhov similarity theory-all scalars assume a perfect level of linear correlation and an equal efficiency level of vertical transport. Results presented herein are noteworthy in that observations over uniform glaciated surfaces involve negligible effects of either a canopy-induced roughness sublayer or heterogeneity in the temperature-humidity source/sink distributions. Moreover, we address two different approaches to representing the heat-to-moisture transport efficiency in stable conditions. A new approach is extended through application of the quadrant analysis technique, thereby representing it as a function of atmospheric stability. Caution is further advised in the use of this approach, when temperature-humidity turbulence becomes markedly de-correlated. A second approach, as previously applied for estimating forest evaporation fluxes in unstable conditions, is extended to a stable boundary layer over snow and ice surfaces.
关键词	FLUX-VARIANCE METHOD SURFACE HEAT WATER-VAPOR HUMIDITY DISSIMILARITY TURBULENT TRANSPORT ENERGY-BALANCE TEMPERATURE SIMILARITY LAYER MOMENTUM
英文关键词	Bowen ratio; Quadrant analysis technique; Scalar turbulence; Snow and ice; Stable boundary layer; Transport efficiency
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000541925800001
来源期刊	ASIA-PACIFIC JOURNAL OF 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/259881
推荐引用方式 GB/T 7714	Guo, Xiaofeng,Yang, Kun,Yang, Wei,et al. Representing the Heat-to-Moisture Transport Efficiency in Stable Conditions: An Extension of Two Different Approaches[J]. 中国科学院青藏高原研究所,2020,56(4).
APA	Guo, Xiaofeng,Yang, Kun,Yang, Wei,Zhao, Long,Li, Shenghai,&Ding, Baohong.(2020).Representing the Heat-to-Moisture Transport Efficiency in Stable Conditions: An Extension of Two Different Approaches.ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES,56(4).
MLA	Guo, Xiaofeng,et al."Representing the Heat-to-Moisture Transport Efficiency in Stable Conditions: An Extension of Two Different Approaches".ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES 56.4(2020).