气候变化领域集成服务门户(CCPortal): Clouds and Radiation Processes in Regional Climate Models Evaluated Using Observations Over the Ice-free Arctic Ocean

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DOI	10.1029/2020JD033904
	Clouds and Radiation Processes in Regional Climate Models Evaluated Using Observations Over the Ice-free Arctic Ocean
	Inoue J.; Sato K.; Rinke A.; Cassano J.J.; Fettweis X.; Heinemann G.; Matthes H.; Orr A.; Phillips T.; Seefeldt M.; Solomon A.; Webster S.
发表日期	2021
ISSN	2169897X
卷号	126 期号:1
英文摘要	The presence of clouds in the Arctic regulates the surface energy budget (SEB) over the sea-ice surface and the ice-free ocean. Following several previous field campaigns, the cloud-radiation relationship, including cloud vertical structure and phase, has been elucidated; however, modeling of this relationship has matured slowly. In recognition of the recent decline in the Arctic sea-ice extent, representation of the cloud system in numerical models should consider the effects of areas covered by sea ice and ice-free areas. Using an in situ stationary meteorological observation data set obtained over the ice-free Arctic Ocean by the Japanese Research Vessel Mirai (September 2014), coordinated evaluation of six regional climate models (RCMs) with nine model runs was performed by focusing on clouds and the SEB. The most remarkable findings were as follows: (1) reduced occurrence of unstable stratification with low-level cloud water in all models in comparison to the observations, (2) significant differences in cloud water representations between single- and double-moment cloud schemes, (3) extensive differences in partitioning of hydrometeors including solid/liquid precipitation, and (4) pronounced lower-tropospheric air temperature biases. These issues are considered as the main sources of SEB uncertainty over ice-free areas of the Arctic Ocean. The results from a coupled RCM imply that the SEB is constrained by both the atmosphere and the ocean (and sea ice) with considerable feedback. Coordinated improvement of both stand-alone atmospheric and coupled RCMs would promote a more comprehensive and improved understanding of the Arctic air-ice-sea coupled system. © 2020. The Authors.
英文关键词	Arctic; cloud; radiation; surface energy budget
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185549
作者单位	Meteorology and Glaciology Group, National Institute of Polar Research, Tachikawa, Japan; School of Earth, Energy and Environmental Engineering, Kitami Institute of Technology, Kitami, Japan; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Potsdam, Germany; Cooperative Institute for Research in Environmental Sciences, University of Colorado Boulder, Boulder, CO, United States; Department of Atmospheric and Oceanic Sciences, University of Colorado, Boulder, CO, United States; Department of Geography, University of Liége, Liége, Belgium; Department of Environmental Meteorology, University of Trier, Trier, Germany; British Antarctic Survey, National Environmental Research Council, Cambridge, United Kingdom; Physical Sciences Division, NOAA Earth System Research Laboratory, Boulder, CO, United States; Met Office, Exeter, United Kingdom
推荐引用方式 GB/T 7714	Inoue J.,Sato K.,Rinke A.,et al. Clouds and Radiation Processes in Regional Climate Models Evaluated Using Observations Over the Ice-free Arctic Ocean[J],2021,126(1).
APA	Inoue J..,Sato K..,Rinke A..,Cassano J.J..,Fettweis X..,...&Webster S..(2021).Clouds and Radiation Processes in Regional Climate Models Evaluated Using Observations Over the Ice-free Arctic Ocean.Journal of Geophysical Research: Atmospheres,126(1).
MLA	Inoue J.,et al."Clouds and Radiation Processes in Regional Climate Models Evaluated Using Observations Over the Ice-free Arctic Ocean".Journal of Geophysical Research: Atmospheres 126.1(2021).