Abstract

Quasi-Periodicity of the Black Sea Wind Spatial-Temporal Variability and Its Relation with the North Atlantic Oscillation Phases

Highlights

  • Climate variability study and prediction are among the most important tasks of Earth sciences being of high applied significance [1, 2]

  • After the 1960s, there was a surface pressure increase resulted in an increase in the number of events of anticyclonic atmospheric circulation over the Black Sea area [17, 18]

  • The quasi-periodic features of this variability can be represented by the North Atlantic Oscillation Index (NAO) index phases

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Summary

Introduction

Climate variability study and prediction are among the most important tasks of Earth sciences being of high applied significance [1, 2]. Main results of wind research in the Black Sea area are presented in [3, 4]. They showed the presence of significant negative linear trends in the series of mean annual wind speeds and the frequency of storms in the 20th century. Search and study of the wind regularities in the inter-annual variability and their relations with the quasi-periodicity of macro-circulation processes in the atmosphere have been still insufficiently developed [5, 6]. The research of long-term trends in variation of the wind conditions is one of the most important practical tasks in studying the wind field variability in the Black Sea area

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