气候变化领域集成服务门户(CCPortal): Modernization of Atmospheric Physics Parameterization in Canadian NWP

CCPortal

DOI	10.1029/2019MS001781
	Modernization of Atmospheric Physics Parameterization in Canadian NWP
	McTaggart-Cowan R.; Vaillancourt P.A.; Zadra A.; Chamberland S.; Charron M.; Corvec S.; Milbrandt J.A.; Paquin-Ricard D.; Patoine A.; Roch M.; Separovic L.; Yang J.
发表日期	2019
ISSN	19422466
起始页码	3593
结束页码	3635
卷号	11 期号:11
英文摘要	Atmospheric physics is represented in numerical models by parameterizations that use resolved-scale information to estimate the effects of physical processes on the atmospheric state. Over time, our understanding of these processes improves, new techniques are introduced to represent physics in a numerical model, and increased resolution changes the relative importance of different parameterizations within the system. As a result, the physical parameterization packages of numerical weather prediction (NWP) models undergo regular updates as older schemes are replaced with newer ones that offer an improved, and often more complex, depiction of relevant physical processes. Such changes are typically combined with a rebalancing of the physics suite because of strong interactions between parameterization schemes and the presence of compensating errors in the system. In this study, a major update to the package of physical parameterizations used in Canadian operational NWP is introduced. The primary goals of this effort were to improve the global energy budget and to facilitate an increase in the vertical resolution of operational configurations. Both of these objectives were achieved, along with a significant improvement in guidance quality for global and regional prediction systems. ©2019. The Authors.
英文关键词	atmospheric physics; forecast evaluation; numerical weather prediction; physical parameterization; physical processes
语种	英语
scopus关键词	Budget control; Geophysics; Parameterization; Weather forecasting; Atmospheric physics; Forecast evaluation; Numerical weather prediction; Physical parameterization; Physical process; Numerical models; complexity; energy budget; error analysis; modernization; numerical method; parameterization; prediction; weather forecasting
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/156827
作者单位	Atmospheric Numerical Weather Prediction Research Section, Environment and Climate Change Canada, Dorval, QC, Canada; Numerical Weather Prediction Development, Meteorological Service of Canada, Environment and Climate Change Canada, Dorval, QC, Canada
推荐引用方式 GB/T 7714	McTaggart-Cowan R.,Vaillancourt P.A.,Zadra A.,et al. Modernization of Atmospheric Physics Parameterization in Canadian NWP[J],2019,11(11).
APA	McTaggart-Cowan R..,Vaillancourt P.A..,Zadra A..,Chamberland S..,Charron M..,...&Yang J..(2019).Modernization of Atmospheric Physics Parameterization in Canadian NWP.Journal of Advances in Modeling Earth Systems,11(11).
MLA	McTaggart-Cowan R.,et al."Modernization of Atmospheric Physics Parameterization in Canadian NWP".Journal of Advances in Modeling Earth Systems 11.11(2019).