globalchange  > 影响、适应和脆弱性
DOI: 10.1002/jgrd.50796
论文题名:
Residual layer effects on the modeling of convective boundary layer growth rates with a slab model using FIFE data
作者: Freire L.S.; Dias N.L.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期:23
起始页码: 12869
结束页码: 12878
语种: 英语
英文关键词: convective boundary layer ; growth model ; residual layer
Scopus关键词: Kinetics ; Convective boundary layers ; Critical elements ; Field experiment ; Growth modeling ; Large datasets ; Model performance ; Residual layers ; Turbulence kinetic energy ; Digital storage ; boundary layer ; climatology ; convective boundary layer ; data set ; energy budget ; error analysis ; experimental study ; kinetic energy ; numerical model
英文摘要: The ability of slab models for the growth of the convective boundary layer (CBL) to work in the presence of residual layers above is analyzed in detail with a large data set from the First International Satellite Land Surface Climatology Project Field Experiment (FIFE)-87 and FIFE-89 experiments. We confirm that the critical element that allows the models to predict the growth as the CBL coalesces with the residual layer is the adoption of a variable lapse rate above the growing CBL. This is not a new finding per se, as several previous studies in the literature have adopted this strategy. Different parameterizations of a slab model, based on the turbulence kinetic energy budget at the top of the CBL, were tested, and the inclusion of the storage and dissipation terms did not improve the model. Among the alternatives for choosing the lapse rate as the CBL grows, fair results are obtained with a simple choice of two values, with absolute mean errors of the order of 270 m for cases with and without a residual layer. Both lapse rates, representative of the residual layer and the free atmosphere, are obtained from the first morning sounding. Finally, an alternative model for the CBL growth into a residual layer that assumes a zero-lapse rate above the CBL did not perform well with the FIFE data. Key Points Analysis of growth models for the CBL with a large data set Good results are obtained with a standard model and accepted parameters Choice of the lapse rate above CBL is essential for good model performance ©2013. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63129
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Graduate Program in Numerical Methods in Engineering, Federal University of Paraná, Curitiba, Brazil; Department of Environmental Engineering, Federal University of Paraná, PO Box 19100, Curitiba, PR 81531-990, Brazil

Recommended Citation:
Freire L.S.,Dias N.L.. Residual layer effects on the modeling of convective boundary layer growth rates with a slab model using FIFE data[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(23)
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