DOI: 10.1175/JCLI-D-12-00779.1
Scopus记录号: 2-s2.0-84883183544
论文题名: Constraining a system of interacting parameterizations through multiple-parameter evaluation: Tracing a compensating error between cloud vertical structure and cloud overlap
作者: Neggers R.A.J. ; Siebesma A.P.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2013
卷: 26, 期: 17 起始页码: 6698
结束页码: 6715
语种: 英语
Scopus关键词: Cloud vertical structure
; Conditional sampling
; General circulation model
; Independent measurement
; Meteorological sites
; Parametric components
; Statistical significance
; Surface energy budget
; Large eddy simulation
; Parameterization
; Radiative transfer
; Parameter estimation
; climate modeling
; cloud
; general circulation model
; large eddy simulation
; parameterization
; radiative transfer
英文摘要: This study explores the opportunities created by subjecting a system of interacting fast-acting parameterizations to long-term single-column model evaluation against multiple independent measurements at a permanent meteorological site. It is argued that constraining the system at multiple key points facilitates the tracing and identification of compensating errors between individual parametric components. The extended time range of the evaluation helps to enhance the statistical significance and representativeness of the singlecolumn model result, which facilitates the attribution of model behavior as diagnosed in a general circulation model to its subgrid parameterizations. At the same time, the high model transparency and computational efficiency typical of single-column modeling is preserved. The method is illustrated by investigating the impact of a model change in the Regional Atmospheric Climate Model (RACMO) on the representation of the coupled boundary layer-soil system at the Cabauw meteorological site in the Netherlands. A set of 12 relevant variables is defined that covers all involved processes, including cloud structure and amplitude, radiative transfer, the surface energy budget, and the thermodynamic state of the soil and various heights of the lower atmosphere. These variables are either routinely measured at the Cabauw site or are obtained from continuous large-eddy simulation at that site. This 12-point check proves effective in revealing the existence of a compensating error between cloud structure and radiative transfer, residing in the cloud overlap assumption. In this exercise, the application of conditional sampling proves a valuable tool in establishing which cloud regime exhibits the biggest impact. © 2013 American Meteorological Society. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/51700
Appears in Collections: 气候变化事实与影响
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作者单位: Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; Delft University of Technology, Delft, Netherlands
Recommended Citation:
Neggers R.A.J.,Siebesma A.P.. Constraining a system of interacting parameterizations through multiple-parameter evaluation: Tracing a compensating error between cloud vertical structure and cloud overlap[J]. Journal of Climate,2013-01-01,26(17)