Global ocean wave fields show consistent regional trends between 1980 and 2014 in a multi-product ensemble

Li H. Erikson; J. Morim; M. Hemer; Ian Young; X. Wang; L. Mentaschi; N. Mori; A. Semedo; Justin Stopa; V Grigorieva; S. Gulev; O. Aarnes; J-R Bidlot; O. Breivik; P. Bricheno; P. Camus; T. Shimura; M. Menendez; M. Markina; V.D. Sharmar; C. Trenham; J.F. Wolf; C. Appendini; S. Caires; N. Groll; A. Webb

doi:10.1038/s43247-022-00654-9

Global ocean wave fields show consistent regional trends between 1980 and 2014 in a multi-product ensemble

Communications Earth & Environment

By: Li H. Erikson, J. Morim, M. Hemer, Ian Young, X. Wang, L. Mentaschi, N. Mori, A. Semedo, Justin Stopa, V Grigorieva, S. Gulev, O. Aarnes, J-R Bidlot, O. Breivik, P. Bricheno, P. Camus, T. Shimura, M. Menendez, M. Markina, V.D. Sharmar, C. Trenham, J.F. Wolf, C. Appendini, S. Caires, N. Groll, and A. Webb

https://doi.org/10.1038/s43247-022-00654-9

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Abstract

Historical trends in the direction and magnitude of ocean surface wave height, period, or direction are debated due to diverse data, time-periods, or methodologies. Using a consistent community-driven ensemble of global wave products, we quantify and establish regions with robust trends in global multivariate wave fields between 1980 and 2014. We find that about 30–40% of the global ocean experienced robust seasonal trends in mean and extreme wave height, period, and direction. Most of the Southern Hemisphere exhibited strong upward-trending wave heights (1–2 cm per year) and periods during winter and summer. Ocean basins with robust positive trends are far larger than those with negative trends. Historical trends calculated over shorter periods generally agree with satellite records but vary from product to product, with some showing a consistently negative bias. Variability in trends across products and time-periods highlights the importance of considering multiple sources when seeking robust change analyses.

Additional publication details
Publication type	Article
Publication Subtype	Journal Article
Title	Global ocean wave fields show consistent regional trends between 1980 and 2014 in a multi-product ensemble
Series title	Communications Earth & Environment
DOI	10.1038/s43247-022-00654-9
Volume	3
Year Published	2022
Language	English
Publisher	Nature
Contributing office(s)	Pacific Coastal and Marine Science Center
Description	320, 16 p.
Google Analytic Metrics	Metrics page