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DOI	10.1016/j.atmosres.2020.104937
	Assessments of the factors controlling latent heat flux and the coupling degree between an alpine wetland and the atmosphere on the Qinghai-Tibetan Plateau in summer
	Chen J.; Wen J.; Kang S.; Meng X.; Tian H.; Ma X.; Yuan Y.
发表日期	2020
ISSN	0169-8095
卷号	240
英文摘要	As one of the typical underlying surfaces on the Qinghai-Tibetan Plateau (QTP), alpine wetlands play a very important role in runoff regulation and affect climate change in downstream regions. However, the mechanisms of the latent heat transfer and coupling processes between the alpine wetland and atmosphere have rarely been investigated with a combination of land surface models. In this paper, the hydrometeorological factors are analyzed, the coupling degree is quantified, and the controlling factors are discussed. Alpine wetland has a hysteretic response to the net radiation, and the dominant factor controlling the latent heat flux is downward shortwave radiation (Rs), which intensely promoting the exchange of latent heat flux in the daytime. Biological control exercised by Rs is positive and decreasing with the increasing of Rs, while biological control exercised by water vapor pressure deficit (D) is negative and increasing with the increasing of D. The coupling degree is low from 9:00–17:00 when latent heat flux is mainly controlled by Rs and high in the early morning and 19:00 when D is the dominant factor. This study contributes to understanding land surface processes and protecting alpine wetland ecosystems on the QTP. © 2020 Elsevier B.V.
关键词	Climate change Couplings Heat transfer Latent heat Surface measurement Wetlands Biological controls Control factors Controlling factors Hysteretic response Land surface models Land-surface process Qinghai-Tibetan plateau Short-wave radiation Heat flux alpine environment hydrometeorology land surface latent heat flux shortwave radiation summer vapor pressure wetland China Qinghai-Xizang Plateau
语种	英语
来源机构	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/132489
推荐引用方式 GB/T 7714	Chen J.,Wen J.,Kang S.,et al. Assessments of the factors controlling latent heat flux and the coupling degree between an alpine wetland and the atmosphere on the Qinghai-Tibetan Plateau in summer[J]. Atmospheric Research,2020,240.
APA	Chen J..,Wen J..,Kang S..,Meng X..,Tian H..,...&Yuan Y..(2020).Assessments of the factors controlling latent heat flux and the coupling degree between an alpine wetland and the atmosphere on the Qinghai-Tibetan Plateau in summer.,240.
MLA	Chen J.,et al."Assessments of the factors controlling latent heat flux and the coupling degree between an alpine wetland and the atmosphere on the Qinghai-Tibetan Plateau in summer".240(2020).