气候变化领域集成服务门户(CCPortal): Impact of air–sea coupling on the climate change signal over the Iberian Peninsula

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DOI	10.1007/s00382-021-05812-x
	Impact of air–sea coupling on the climate change signal over the Iberian Peninsula
	de la Vara A.; Cabos W.; Sein D.V.; Teichmann C.; Jacob D.
发表日期	2021
ISSN	0930-7575
起始页码	597
结束页码	612
英文摘要	In this work we use a regional atmosphere–ocean coupled model (RAOCM) and its stand-alone atmospheric component to gain insight into the impact of atmosphere–ocean coupling on the climate change signal over the Iberian Peninsula (IP). The IP climate is influenced by both the Atlantic Ocean and the Mediterranean sea. Complex interactions with the orography take place there and high-resolution models are required to realistically reproduce its current and future climate. We find that under the RCP8.5 scenario, the generalized 2-m air temperature (T2M) increase by the end of the twenty-first century (2070–2099) in the atmospheric-only simulation is tempered by the coupling. The impact of coupling is specially seen in summer, when the warming is stronger. Precipitation shows regionally-dependent changes in winter, whilst a drier climate is found in summer. The coupling generally reduces the magnitude of the changes. Differences in T2M and precipitation between the coupled and uncoupled simulations are caused by changes in the Atlantic large-scale circulation and in the Mediterranean Sea. Additionally, the differences in projected changes of T2M and precipitation with the RAOCM under the RCP8.5 and RCP4.5 scenarios are tackled. Results show that in winter and summer T2M increases less and precipitation changes are of a smaller magnitude with the RCP4.5. Whilst in summer changes present a similar regional distribution in both runs, in winter there are some differences in the NW of the IP due to differences in the North Atlantic circulation. The differences in the climate change signal from the RAOCM and the driving Global Coupled Model show that regionalization has an effect in terms of higher resolution over the land and ocean. © 2021, The Author(s).
英文关键词	Air-sea coupling; Climate change; Future climate; Iberian Peninsula; Regional climate modeling
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183443
作者单位	Environmental Sciences Institute, University of Castilla-La Mancha, Avenida Carlos III S/N, Toledo, 45071, Spain; Departamento de Matemática Aplicada a la Ingeniería Industrial, E.T.S.I. Industriales, Universidad Politécnica de Madrid, C/ José Gutiérrez Abascal, 2, Madrid, 28006, Spain; Departmento de Física y Matemáticas, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain; P. P. Shirshov Institute of Oceanology RAS, Moscow, Russian Federation; Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany; Climate Service Center Germany (GERICS), Helmholtz-Zentrum Hereon, Hamburg, 20095, Germany
推荐引用方式 GB/T 7714	de la Vara A.,Cabos W.,Sein D.V.,等. Impact of air–sea coupling on the climate change signal over the Iberian Peninsula[J],2021.
APA	de la Vara A.,Cabos W.,Sein D.V.,Teichmann C.,&Jacob D..(2021).Impact of air–sea coupling on the climate change signal over the Iberian Peninsula.Climate Dynamics.
MLA	de la Vara A.,et al."Impact of air–sea coupling on the climate change signal over the Iberian Peninsula".Climate Dynamics (2021).