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Utility of Hovmöller diagrams to diagnose Rossby wave trains

Glatt, I.; Dörnbrack, A.; Jones, S. 1; Keller, J. 1; Martius, O.; Müller, A. 1; Peters, D. H. W.; Wirth, V.
1 Institut für Meteorologie und Klimaforschung (IMK), Karlsruher Institut für Technologie (KIT)


The study investigates and compares various methods that aim to diagnose Rossby wave trains with the help of Hovmöller diagrams. Three groups of methods are distinguished: The first group contains trough-and-ridge Hovmöller diagrams of the meridional wind; they provide full phase information, but differ in the method for latitudinal averaging or weighting. The second group aims to identify Rossby wave trains as a whole, discounting individual troughs and ridges. The third group contains diagnostics which focus on physical mechanisms during the different phases of a Rossby wave train life cycle; they include the analysis of eddy kinetic energy and methods for quantifying Rossby wave breaking. The different methods are analysed and systematically compared with each other in the framework of a two-month period in fall 2008. Each method more or less serves its designed purpose, but they all have their own strengths and weaknesses. Notable differences between the individual methods render an objective identification of a Rossby wave train somewhat elusive. Nevertheless, the combination of several techniques provides a rather comprehensive picture of the Rossby wave train life cycle, being broadly consistent with the expected behaviour from previous theoretical analysis.

Verlagsausgabe §
DOI: 10.5445/IR/1000039280
Veröffentlicht am 07.11.2018
DOI: 10.1111/j.1600-0870.2011.00541.x
Zitationen: 26
Web of Science
Zitationen: 26
Zitationen: 28
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung – Forschungsbereich Troposphäre (IMK-TRO)
Institut für Meteorologie und Klimaforschung (IMK)
KIT-Zentrum Klima und Umwelt (ZKU)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2011
Sprache Englisch
Identifikator ISSN: 0280-6495, 1600-0870
KITopen-ID: 1000039280
HGF-Programm 12.01.03 (POF II, LK 01) Regionale Modellierung
Erschienen in Tellus / A
Verlag Taylor & Francis Open Access
Band 63
Heft 5
Seiten 991-1006
Nachgewiesen in Dimensions
Web of Science
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