气候变化领域集成服务门户(CCPortal): Interactions Between the Amazonian Rainforest and Cumuli Clouds: A Large-Eddy Simulation, High-Resolution ECMWF, and Observational Intercomparison Study

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DOI	10.1029/2019MS001828
	Interactions Between the Amazonian Rainforest and Cumuli Clouds: A Large-Eddy Simulation, High-Resolution ECMWF, and Observational Intercomparison Study
	Vilà-Guerau de Arellano J.; Wang X.; Pedruzo-Bagazgoitia X.; Sikma M.; Agustí-Panareda A.; Boussetta S.; Balsamo G.; Machado L.A.T.; Biscaro T.; Gentine P.; Martin S.T.; Fuentes J.D.; Gerken T.
发表日期	2020
ISSN	19422466
卷号	12 期号:7
英文摘要	The explicit coupling at meter and second scales of vegetation's responses to the atmospheric-boundary layer dynamics drives a dynamic heterogeneity that influences canopy-top fluxes and cloud formation. Focusing on a representative day during the Amazonian dry season, we investigate the diurnal cycle of energy, moisture and carbon dioxide at the canopy top, and the transition from clear to cloudy conditions. To this end, we compare results from a large-eddy simulation technique, a high-resolution global weather model, and a complete observational data set collected during the GoAmazon14/15 campaign. The overall model-observation comparisons of radiation and canopy-top fluxes, turbulence, and cloud dynamics are very satisfactory, with all the modeled variables lying within the standard deviation of the monthly aggregated observations. Our analysis indicates that the timing of the change in the daylight carbon exchange, from a sink to a source, remains uncertain and is probably related to the stomata closure caused by the increase in vapor pressure deficit during the afternoon. We demonstrate quantitatively that heat and moisture transport from the subcloud layer into the cloud layer are misrepresented by the global model, yielding low values of specific humidity and thermal instability above the cloud base. Finally, the numerical simulations and observational data are adequate settings for benchmarking more comprehensive studies of plant responses, microphysics, and radiation. ©2020. The Authors.
英文关键词	Amazonian rainforest; global weather model; large-eddy simulation; vegetation-cloud intercation
语种	英语
scopus关键词	Atmospheric boundary layer; Atmospheric humidity; Atmospheric thermodynamics; Carbon dioxide; Digital storage; Moisture; Thermodynamic stability; Amazonian rainforest; Dynamic heterogeneity; Heat and moisture transports; Large Eddy simulation techniques; Observational data; Standard deviation; Thermal instabilities; Vapor pressure deficit; Large eddy simulation; benchmarking; carbon dioxide; cumulus; data set; daylight; heterogeneity; humidity; large eddy simulation; moisture transfer; rainforest; stomatal conductance; vapor pressure; vegetation dynamics
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156690
作者单位	Meteorology and Air Quality Section, Wageningen University, Wageningen, Netherlands; Atmospheric Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany; European Centre for Medium-Range Forecast, Reading, United Kingdom; Centro de Previsao de Tempo e Estudios Climaticos, INPE, Sao Jose dos Campos, Brazil; Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany; Earth and Environmental Engineering, Columbia University, New York, NY, United States; Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, United States; Department of Meteorology and Atmospheric Science, The Pennsylvania State University, University Park, PA, United States
推荐引用方式 GB/T 7714	Vilà-Guerau de Arellano J.,Wang X.,Pedruzo-Bagazgoitia X.,et al. Interactions Between the Amazonian Rainforest and Cumuli Clouds: A Large-Eddy Simulation, High-Resolution ECMWF, and Observational Intercomparison Study[J],2020,12(7).
APA	Vilà-Guerau de Arellano J..,Wang X..,Pedruzo-Bagazgoitia X..,Sikma M..,Agustí-Panareda A..,...&Gerken T..(2020).Interactions Between the Amazonian Rainforest and Cumuli Clouds: A Large-Eddy Simulation, High-Resolution ECMWF, and Observational Intercomparison Study.Journal of Advances in Modeling Earth Systems,12(7).
MLA	Vilà-Guerau de Arellano J.,et al."Interactions Between the Amazonian Rainforest and Cumuli Clouds: A Large-Eddy Simulation, High-Resolution ECMWF, and Observational Intercomparison Study".Journal of Advances in Modeling Earth Systems 12.7(2020).