气候变化领域集成服务门户(CCPortal): Improved Near-Surface Continental Climate in IPSL-CM6A-LR by Combined Evolutions of Atmospheric and Land Surface Physics

CCPortal

DOI	10.1029/2019MS002005
	Improved Near-Surface Continental Climate in IPSL-CM6A-LR by Combined Evolutions of Atmospheric and Land Surface Physics
	Cheruy F.; Ducharne A.; Hourdin F.; Musat I.; Vignon É.; Gastineau G.; Bastrikov V.; Vuichard N.; Diallo B.; Dufresne J.-L.; Ghattas J.; Grandpeix J.-Y.; Idelkadi A.; Mellul L.; Maignan F.; Ménégoz M.; Ottlé C.; Peylin P.; Servonnat J.; Wang F.; Zhao Y.
发表日期	2020
ISSN	19422466
卷号	12 期号:10
英文摘要	This work is motivated by the identification of the land-atmosphere interactions as one of the key sources of uncertainty in climate change simulations. It documents new developments in related processes, namely, boundary layer/convection/clouds parameterizations and land surface parameterization in the Earth System Model of the Institut Pierre Simon Laplace (IPSL). Simulations forced by prescribed oceanic conditions are produced with different combinations of atmospheric and land surface parameterizations. They are used to explore the sensitivity to the atmospheric physics and/or soil physics of major biases in the near surface variables over continents, the energy and moisture coupling established at the soil/atmosphere interface in not too wet (energy limited) and not too dry (moisture limited) soil moisture regions also known as transition or “hot-spot” regions, the river runoff at the outlet of major rivers. The package implemented in the IPSL-Climate Model for the Phase 6 of the Coupled Models Intercomparison Project (CMIP6) allows us to reduce several biases in the surface albedo, the snow cover, and the continental surface air temperature in summer as well as in the temperature profile in the surface layer of the polar regions. The interactions between soil moisture and atmosphere in hotspot regions are in better agreement with the observations. Rainfall is also significantly improved in volume and seasonality in several major river basins leading to an overall improvement in river discharge. However, the lack of consideration of floodplains and human influences in the model, for example, dams and irrigation, impacts the realism of simulated discharge. ©2020. The Authors.
英文关键词	atmosphere-land surface interactions; climate modelling; hydrology; soil moisture; stable boundary layer; temperature bias
语种	英语
scopus关键词	Boundary layers; Climate change; Geophysics; Parameterization; Rivers; Snow; Soil mechanics; Soil moisture; Surface measurement; Climate change simulations; Land atmosphere interaction; Land surface parameterization; Near-surface variables; Simulated discharges; Sources of uncertainty; Surface air temperatures; Temperature profiles; Climate models; air temperature; boundary layer; climate change; CMIP; discharge; identification method; land-atmosphere interaction; parameterization; sensitivity analysis; temperature profile
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/156607
作者单位	Laboratoire de Météorologie Dynamique (LMD)/IPSL/Sorbonne Université/CNRS, UMR 8539, Paris, France; Milieux environnementaux, tranferts et interaction dans les hydrosystemes et les sols (Metis)/Sorbonne Université/IPSL/CNRS/EPHE, Paris, France; Environmental Remote Sensing Laboratory (LTE), École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland; Laboratoire d’Océanographie et du Climat: Expérimentation et Approches Numériques (Locean)/Sorbonne Université/IPSL/CNRS, Paris, France; Laboratoire des Sciences du Climat et de l'Environnement, IPSL, unité mixte CEA-CNRS-UVSQ, Gif sur Yvette, France; Institut Pierre Simon Laplace (IPSL), CNRS, Paris, France; Institut des Géosciences de l'Environnement (IGE), Univ. Grenoble Alpes, CNRS, 38000, Grenoble, France
推荐引用方式 GB/T 7714	Cheruy F.,Ducharne A.,Hourdin F.,et al. Improved Near-Surface Continental Climate in IPSL-CM6A-LR by Combined Evolutions of Atmospheric and Land Surface Physics[J],2020,12(10).
APA	Cheruy F..,Ducharne A..,Hourdin F..,Musat I..,Vignon É..,...&Zhao Y..(2020).Improved Near-Surface Continental Climate in IPSL-CM6A-LR by Combined Evolutions of Atmospheric and Land Surface Physics.Journal of Advances in Modeling Earth Systems,12(10).
MLA	Cheruy F.,et al."Improved Near-Surface Continental Climate in IPSL-CM6A-LR by Combined Evolutions of Atmospheric and Land Surface Physics".Journal of Advances in Modeling Earth Systems 12.10(2020).