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  4. Long-term statistics of potentially hazardous sea states in the North Sea 1958–2014
 
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Long-term statistics of potentially hazardous sea states in the North Sea 1958–2014

Publikationstyp
Journal Article
Date Issued
2018-11-01
Sprache
English
Author(s)
Teich, Tobias  
Groll, Nikolaus  
Weisse, Ralf  
Institut
Wasserbau B-10  
TORE-URI
http://hdl.handle.net/11420/2803
Journal
Ocean dynamics  
Volume
68
Issue
11
Start Page
1559
End Page
1570
Citation
Ocean Dynamics 11 (68): 1559-1570 (2018-11-01)
Publisher DOI
10.1007/s10236-018-1210-4
Scopus ID
2-s2.0-85051858516
Significant wave height and mean wave period are two of the most commonly used parameters to describe wave climate, wave climate variability, and their potential long-term changes. While these parameters are generally useful to characterize the distribution of waves within a given sea state, they provide less information about potentially high-risk situations. Over the recent years, a number of criteria were suggested that are considered to better characterize high-risk situations and which could bear a potential for the development of safety warning indices. Based on a multi-decadal high-resolution wind-wave hindcast, a climatology of such parameters is developed for the North Sea covering the years 1958–2014. More specifically, average conditions, inter-annual variability and long-term changes for unusually steep, rapidly developing and crossing sea states are considered. Generally, there are pronounced spatial variations in the frequency of such sea states, while over time, there is some seasonal and inter-annual variability but no substantial long-term trend could be identified.
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