DOI: 10.1002/2014GL059279
论文题名: Shallow cumulus rooted in photosynthesis
作者: Vilà-Guerau De Arellano J. ; Ouwersloot H.G. ; Baldocchi D. ; Jacobs C.M.J.
刊名: Geophysical Research Letters
ISSN: 0094-10315
EISSN: 1944-10046
出版年: 2014
卷: 41, 期: 5 起始页码: 1796
结束页码: 1802
语种: 英语
英文关键词: land-atmosphere interaction
; photosynthesis
; shallow cumulus
Scopus关键词: Clouds
; Large eddy simulation
; Surface measurement
; Water supply
; Boundary layer clouds
; Land-atmosphere interactions
; Numerical experiments
; Shallow cumulus
; Shallow cumulus clouds
; Spatial and temporal scale
; Spatial variability
; Water use efficiency
; Photosynthesis
; cumulus
; energy balance
; large eddy simulation
; latitude
; photosynthesis
; plant community
; spatiotemporal analysis
; surface energy
; surface flux
; water use efficiency
; Poaceae
英文摘要: We study the interactions between plant evapotranspiration, controlled by photosynthesis (C3 and C4 grasses), and moist thermals responsible for the formation of shallow cumulus clouds (SCu). Our findings are based on a series of systematic numerical experiments at fine spatial and temporal scales using large eddy simulations explicitly coupled to a plant-physiology model. The shading provided by SCu leads to strong spatial variability in photosynthesis and the surface energy balance. This in turn results in SCu characterized by less extreme and less skewed values of liquid water path. The larger water use efficiency of C4 grass leads to two opposite effects that influence boundary layer clouds: more vigorous and deeper thermals due to the larger buoyancy surface flux (positive effect) characterized by less moisture content (negative). We find that under these midlatitude and well-watered soil conditions, SCu are characterized by a larger cloud cover and liquid water path over C4 grass fields. Key Points Coupling clouds and vegetation leads to less extreme values cloud properties Time adjustment of the stoma leads to changes in the surface flux variability Systematic large eddy simulations coupled to photosynthesis and stoma aperture ©2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84895657826&doi=10.1002%2f2014GL059279&partnerID=40&md5=b279f4121b9646dd7b400a0405b7f887
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/7579
Appears in Collections: 气候减缓与适应
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作者单位: Meteorology and Air Quality Section, Wageningen University, Wageningen, Netherlands
Recommended Citation:
Vilà-Guerau De Arellano J.,Ouwersloot H.G.,Baldocchi D.,et al. Shallow cumulus rooted in photosynthesis[J]. Geophysical Research Letters,2014-01-01,41(5).