气候变化领域集成服务门户(CCPortal): LMDZ6A: The Atmospheric Component of the IPSL Climate Model With Improved and Better Tuned Physics

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DOI	10.1029/2019MS001892
	LMDZ6A: The Atmospheric Component of the IPSL Climate Model With Improved and Better Tuned Physics
	Hourdin F.; Rio C.; Grandpeix J.-Y.; Madeleine J.-B.; Cheruy F.; Rochetin N.; Jam A.; Musat I.; Idelkadi A.; Fairhead L.; Foujols M.-A.; Mellul L.; Traore A.-K.; Dufresne J.-L.; Boucher O.; Lefebvre M.-P.; Millour E.; Vignon E.; Jouhaud J.; Diallo F.B.; Lott F.; Gastineau G.; Caubel A.; Meurdesoif Y.; Ghattas J.
发表日期	2020
ISSN	19422466
卷号	12 期号:7
英文摘要	This study presents the version of the LMDZ global atmospheric model used as the atmospheric component of the Institut Pierre Simon Laplace coupled model (IPSL-CM6A-LR) to contribute to the 6th phase of the international Coupled Model Intercomparison Project (CMIP6). This LMDZ6A version includes original convective parameterizations that define the LMDZ “New Physics”: a mass flux parameterization of the organized structures of the convective boundary layer, the “thermal plume model,” and a parameterization of the cold pools created by reevaporation of convective rainfall. The vertical velocity associated with thermal plumes and gust fronts of cold pools are used to control the triggering and intensity of deep convection. Because of several shortcomings, the early version 5B of this New Physics was worse than the previous “Standard Physics” version 5A regarding several classical climate metrics. To overcome these deficiencies, version 6A includes new developments: a stochastic triggering of deep convection, a modification of the thermal plume model that allows the representation of stratocumulus and cumulus clouds in a unified framework, an improved parameterization of very stable boundary layers, and the modification of the gravity waves scheme targeting the quasi-biennal oscillation in the stratosphere. These improvements to the physical content and a more well-defined tuning strategy led to major improvements in the LMDZ6A version model climatology. Beyond the presentation of this particular model version and documentation of its climatology, the present paper underlines possible methodological pathways toward model improvement that can be shared across modeling groups. ©2020. The Authors.
语种	英语
scopus关键词	Boundary layer flow; Boundary layers; Climatology; Clouds; Natural convection; Parameterization; Stochastic models; Stochastic systems; Thermal plumes; Atmospheric components; Convective boundary layers; Coupled Model Intercomparison Project; Flux parameterization; Global atmospheric models; Organized structure; Stable boundary layer; Vertical velocity; Climate models; atmospheric convection; atmospheric modeling; boundary layer; climate modeling; CMIP; gravity wave; parameterization; rainfall; stratocumulus
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/156701
作者单位	Laboratoire de Météorologie Dynamique/IPSL/Sorbone Universités/CNRS, UMR 8539, Paris, France; CNRM, Université deToulouse, Météo-France, CNRS, Toulouse, France; Institut Pierre Simon Laplace, IPSL/SU, Paris, France; Environmental Remote Sensing Laboratory (LTE), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland; Locean/IPSL/Sorbone Universités/CNRS, Paris, France; Laboratoire des Sciences du Climat et de l'Environnement, IPSL, unit mixte CEA-CNRS-UPS, Gif sur Yvette, Paris, France
推荐引用方式 GB/T 7714	Hourdin F.,Rio C.,Grandpeix J.-Y.,et al. LMDZ6A: The Atmospheric Component of the IPSL Climate Model With Improved and Better Tuned Physics[J],2020,12(7).
APA	Hourdin F..,Rio C..,Grandpeix J.-Y..,Madeleine J.-B..,Cheruy F..,...&Ghattas J..(2020).LMDZ6A: The Atmospheric Component of the IPSL Climate Model With Improved and Better Tuned Physics.Journal of Advances in Modeling Earth Systems,12(7).
MLA	Hourdin F.,et al."LMDZ6A: The Atmospheric Component of the IPSL Climate Model With Improved and Better Tuned Physics".Journal of Advances in Modeling Earth Systems 12.7(2020).