Wind Energy Science
Wind Energy Science
WES
Articles | Volume 9, issue 8
Articles | Volume 9, issue 8
https://doi.org/10.5194/wes-9-1727-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-9-1727-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 9, issue 8
Research article
 | 
19 Aug 2024
Research article |  | 19 Aug 2024

Underestimation of strong wind speeds offshore in ERA5: evidence, discussion and correction

Rémi Gandoin and Jorge Garza

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Latest update: 04 Feb 2025
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Short summary
ERA5 has become the workhorse of most wind resource assessment applications, as it compares better with in situ measurements than other reanalyses. However, for design purposes, ERA5 suffers from a drawback: it underestimates strong wind speeds offshore (approx. from 10 m s−1). This is not widely discussed in the scientific literature. We address this bias and proposes a simple, robust correction. This article supports the growing need for use-case-specific validations of reanalysis datasets.
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