气候变化领域集成服务门户(CCPortal): Global Ocean Wind-Wave Model Hindcasts Forced by Different Reanalyzes: A Comparative Assessment

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DOI	10.1029/2020JC016710
	Global Ocean Wind-Wave Model Hindcasts Forced by Different Reanalyzes: A Comparative Assessment
	Sharmar V.D.; Markina M.Y.; Gulev S.K.
发表日期	2021
ISSN	21699275
卷号	126 期号:1
英文摘要	Four global wind wave hindcasts based on the third-generation spectral wave model WAVEWATCH III forced by ERA5, ERA-Interim, National Centers of Environmental Prediction and Climate Forecast System Reanalysis (CFSR) and MERRA2 reanalyzes for 1980–2019 are presented. Absolute magnitudes of both 10-m wind speeds and significant wave heights are the largest in the CFSR and CFSR-based hindcast respectively, particularly in the extratropical regions. The differences in annual extremes between CFSR and ERA5 (and corresponding hindcasts) amount to 2.4 ms−1 for wind speeds and 1.2 m for wave heights. CFSR and CFSR-based hindcast also stand out with respect to remaining datasets, showing mostly negative trends in both mean and extreme characteristics. ERA5-, ERA-Interim-, and MERRA2-based hindcasts show annual positive trends in wave heights in 1980–2019, in particular in the Southern Ocean (up to 0.15 m decade-1 for extreme wave heights in MERRA2-based hindcast) as well as in the central Pacific, equatorial and tropical Atlantic, and Indian Oceans. All four hindcasts agree on the positive linear trends in the North Atlantic midlatitudes and subtropics, western South Atlantic midlatitudes and the tropical South Pacific, and the negative trends in the eastern North Pacific midlatitudes. Areas with significant linear trends in wave heights generally coincide with those for wind speeds, however, they have larger spatial coverage. The interannual variability in significant wave heights is the most consistent across different hindcasts in the eastern midlatitudes of both hemispheres. The performed hindcasts provide a useful background for studies on both present and future wave climates. © 2020. American Geophysical Union. All Rights Reserved.
英文关键词	CFSR; ERA Interim; ERA5; MERRA2; WAVEWATCH; wind wave climate
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186517
作者单位	Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russian Federation; Lomonosov Moscow State University, Moscow, Russian Federation
推荐引用方式 GB/T 7714	Sharmar V.D.,Markina M.Y.,Gulev S.K.. Global Ocean Wind-Wave Model Hindcasts Forced by Different Reanalyzes: A Comparative Assessment[J],2021,126(1).
APA	Sharmar V.D.,Markina M.Y.,&Gulev S.K..(2021).Global Ocean Wind-Wave Model Hindcasts Forced by Different Reanalyzes: A Comparative Assessment.Journal of Geophysical Research: Oceans,126(1).
MLA	Sharmar V.D.,et al."Global Ocean Wind-Wave Model Hindcasts Forced by Different Reanalyzes: A Comparative Assessment".Journal of Geophysical Research: Oceans 126.1(2021).