气候变化领域集成服务门户(CCPortal): Comparison of wind speed and wave height trends from twentieth-century models and satellite altimeters

CCPortal

DOI	10.1175/JCLI-D-19-0540.1
	Comparison of wind speed and wave height trends from twentieth-century models and satellite altimeters
	Meucci A.; Young I.R.; Aarnes O.J.; Breivik Ø.
发表日期	2020
ISSN	0894-8755
起始页码	611
结束页码	624
卷号	33 期号:2
英文摘要	The trends in marine 10-m wind speed U10 and significant wave height Hs found in two century-long reanalyses are compared against a model-only integration. Reanalyses show spurious trends due to the assimilation of an increasing number of observations over time. The comparisons between model and reanalyses show that the areas where the discrepancies in U10 and Hs trends are greatest are also the areas where there is a marked increase in assimilated observations. Large differences in the yearly averages call into question the quality of the observations assimilated by the reanalyses, resulting in unreliable U10 and Hs trends before the 1950s. Four main regions of the world's oceans are identified where the trends between model and reanalyses deviate strongly. These are the North Atlantic, the North Pacific, the Tasman Sea, and the western South Atlantic. The trends at 124-h lead time are markedly weaker and less correlated with the observation count. A 1985-2010 comparison with an extensive dataset of calibrated satellite altimeters shows contrasting results in Hs trends but similar U10 spatial trend distributions, with general agreement between model, reanalyses, and satellite altimeters on a broad increase in wind speed over the Southern Hemisphere. © 2019 American Meteorological Society. For information regarding reuse of this content and general copyright information, consult the AMS Copyright Policy (www.ametsoc.org/PUBSReuseLicenses).
英文关键词	Aneroid altimeters; Meteorological instruments; Radio altimeters; Satellites; Water waves; North Atlantic; North Pacific; Satellite altimeter; Significant wave height; South Atlantic; Southern Hemisphere; Spatial trends; Twentieth century; Wind; data assimilation; satellite altimetry; spatiotemporal analysis; trend analysis; twentieth century; wave height; wind velocity; Atlantic Ocean; Atlantic Ocean (North); Pacific Ocean; Pacific Ocean (North); Tasman Sea
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/171501
作者单位	Department of Infrastructure Engineering, University of Melbourne, Parkville, VIC, Australia; Norwegian Meteorological Institute, Bergen, Norway; Norwegian Meteorological Institute, University of Bergen, Bergen, Norway
推荐引用方式 GB/T 7714	Meucci A.,Young I.R.,Aarnes O.J.,et al. Comparison of wind speed and wave height trends from twentieth-century models and satellite altimeters[J],2020,33(2).
APA	Meucci A.,Young I.R.,Aarnes O.J.,&Breivik Ø..(2020).Comparison of wind speed and wave height trends from twentieth-century models and satellite altimeters.Journal of Climate,33(2).
MLA	Meucci A.,et al."Comparison of wind speed and wave height trends from twentieth-century models and satellite altimeters".Journal of Climate 33.2(2020).