Standardization of marine surface wind speeds at coastal islands

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

7 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Article number107652
Journal / PublicationOcean Engineering
Volume213
Online published29 Jul 2020
Publication statusPublished - 1 Oct 2020

Abstract

Field measurements of surface wind can provide valuable information for a wide range of research and practices. However, surface wind records are usually influenced by topographic/terrain effects and direct use of the raw datasets may result in non-ignorable errors for subsequent applications. Thus, it is required to standardize surface wind speed measurements, i.e., to correct raw wind speeds to their potential values which are associated with a given mean speed duration (e.g., 10-min) at a fixed height (e.g., 10 m) above a reference terrain (e.g., open flat terrain). This paper focuses on the standardization of surface wind speed records measured at coastal islands. A standardization scheme is proposed, which takes into account the combined effects associated with topography and speed-dependence of marine roughness z0m. A case study via wind tunnel testing is presented to verify the effectiveness of the proposed scheme. The topographic effects on surface wind speeds are found to vary noticeably with approaching wind field that is characterized by different z0m. The validity of the proposed scheme is examined through comparison of the standardized wind measurements at two coastal stations.

Research Area(s)

  • Coastal island, Marine roughness, Standardization, Surface wind, Topographic effect

Citation Format(s)

Standardization of marine surface wind speeds at coastal islands. / He, Y.C.; Shu, Z.R.; Li, Q.S. et al.
In: Ocean Engineering, Vol. 213, 107652, 01.10.2020.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review