气候变化领域集成服务门户(CCPortal): Evaluation of CMIP5 and CORDEX derived wave climate in Indian Ocean

CCPortal

DOI	10.1007/s00382-018-4391-0
	Evaluation of CMIP5 and CORDEX derived wave climate in Indian Ocean
	Chowdhury P.; Behera M.R.
发表日期	2019
ISSN	0930-7575
起始页码	4463
结束页码	4482
卷号	52 期号:2020-07-08
英文摘要	The effects of climate change are currently a widely investigated issue. However, little attention has been paid to the effects of climate change on regional wave climate. With the growing need towards developing future projections of waves to assess climate-driven impacts on coastal processes, it is required to evaluate the performance of General Circulation Models (GCMs) and Regional Climate Models (RCMs) in simulating wave climate independent of their ability to simulate other standard variables. Near-surface winds, derived from GCMs participating in the Coupled Model Intercomparison Project (CMIP5) and RCMs from Coordinated Regional Climate Downscaling Experiment (CORDEX), are used to force a spectral wave model to simulate hindcast waves over Indian Ocean (IO) region. The GCM and RCM forced climatological wave characteristics (significant wave height, mean wave period, and mean wave direction) are compared with reanalysis data derived from ERA-Interim for performance evaluation. RCMs work at fine resolution and are assumed to simulate regional climate better than GCMs. However, we identified that there is no added value in simulating wave climate using RCMs. We also identified that there is no improvement in wave simulation upon choosing a fine resolution GCM (~ 1.4°) over a coarse GCM (~ 2.5°). Seasonality in wave characteristics is an important aspect in the IO. The skill of climate models in capturing seasonality was also evaluated. It is observed that ensemble GCM forced wave simulations capture seasonality better than other models. Finally, it is recommended to use ensemble GCM wind forcing for better wave simulation in the IO region. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	CMIP5; CORDEX; Indian Ocean; Seasonality; Wave climate; Wave modelling
语种	英语
scopus关键词	climate effect; climate modeling; CMIP; general circulation model; hindcasting; regional climate; seasonality; wave climate; wave modeling; wind forcing; Indian Ocean
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/146403
作者单位	Inter Disciplinary Program in Climate Studies, Indian Institute of Technology Bombay, Mumbai, 400076, India; Department of Civil Engineering, Indian Institute of Technology Bombay, Mumbai, 400076, India
推荐引用方式 GB/T 7714	Chowdhury P.,Behera M.R.. Evaluation of CMIP5 and CORDEX derived wave climate in Indian Ocean[J],2019,52(2020-07-08).
APA	Chowdhury P.,&Behera M.R..(2019).Evaluation of CMIP5 and CORDEX derived wave climate in Indian Ocean.Climate Dynamics,52(2020-07-08).
MLA	Chowdhury P.,et al."Evaluation of CMIP5 and CORDEX derived wave climate in Indian Ocean".Climate Dynamics 52.2020-07-08(2019).