气候变化领域集成服务门户(CCPortal): An Overview of the Extratropical Storm Tracks in CMIP6 Historical Simulations

CCPortal

DOI	10.1175/JCLI-D-19-0928.1
	An Overview of the Extratropical Storm Tracks in CMIP6 Historical Simulations
	Priestley M.D.K.; Ackerley D.; Catto J.L.; Hodges K.I.; McDonald R.E.; Lee R.W.
发表日期	2020
ISSN	0894-8755
起始页码	6315
结束页码	6343
卷号	33 期号:15
英文摘要	The representation of the winter and summer extratropical storm tracks in both hemispheres is evaluated in detail for the available models in phase 6 of the Coupled Model intercomparison Project (CMIP6). The state of the storm tracks from 1979 to 2014 is compared to that in ERA5 using a Lagrangian objective cyclone tracking algorithm. It is found that the main biases present in the previous generation of models (CMIP5) still persist, albeit to a lesser extent. The equatorward bias around the SH is much reduced and there appears to be some improvement in mean biases with the higher-resolution models, such as the zonal tilt of the North Atlantic storm track. Low-resolution models have a tendency to underestimate the frequency of highintensity cyclones with all models simulating a peak intensity that is too low for cyclones in the SH. Explosively developing cyclones are underestimated across all ocean basins and in both hemispheres. In particular the models struggle to capture the rapid deepening required for these cyclones. For all measures, the CMIP6 models exhibit an overall improvement compared to the previous generation of CMIP5 models. In theNHmost improvements can be attributed to increased horizontal resolution, whereas in the SHthe impact of resolution is less apparent and any improvements are likely a result of improved model physics. © 2020 American Meteorological Society. All rights reserved.
英文关键词	Climate models; Coupled Model Intercomparison Project; Cyclone tracking; Extratropical storms; Higher resolution; Historical simulation; Horizontal resolution; North Atlantic; Peak intensity; Storms; CMIP; extratropical cyclone; ocean basin; seasonal variation; storm track; Atlantic Ocean; Atlantic Ocean (North)
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171194
作者单位	College of Engineering,Mathematics and Physical Sciences, University of Exeter, Exeter, United Kingdom; Met Office, Exeter, United Kingdom; National Centre for Atmospheric Science, Department of Meteorology, University of Reading, Reading, United Kingdom
推荐引用方式 GB/T 7714	Priestley M.D.K.,Ackerley D.,Catto J.L.,et al. An Overview of the Extratropical Storm Tracks in CMIP6 Historical Simulations[J],2020,33(15).
APA	Priestley M.D.K.,Ackerley D.,Catto J.L.,Hodges K.I.,McDonald R.E.,&Lee R.W..(2020).An Overview of the Extratropical Storm Tracks in CMIP6 Historical Simulations.Journal of Climate,33(15).
MLA	Priestley M.D.K.,et al."An Overview of the Extratropical Storm Tracks in CMIP6 Historical Simulations".Journal of Climate 33.15(2020).