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A Global Climatology of Explosive Cyclones using a Multi-Tracking Approach

Reale, Marco; Liberato, Margarida L.R.; Lionello, Piero; Pinto, Joaquim G.; Salon, Stefano; Ulbrich, Sven

Abstract:
In this study, hemispheric climatologies of explosive cyclones (ECs) derived using a set of different cyclone detection and tracking methods (CDTMs) are analysed. The aim is to evaluate trends and regional characteristics of ECs discussing consensus and disagreement among methods. Areas of both hemispheres characterised by relatively frequent presence of ECs are considered, with particular emphasis on their extremes. Despite the considerable differences (up to 21-38% in the Northern/Southern Hemisphere) in the total number of ECs detected by the various CDTM, this study provides evidence of a good level of agreement among methods concerning spatial distribution of cyclogenesis, track density, their main characteristics (depth, speed, duration, deepening and normalised deepening rate), seasonality and trends. ECs are shown to be deeper, faster and long-lasting with respect to ordinary cyclones in both hemispheres. Southern Hemisphere ECs are typically more intense than those in Northern Hemisphere. On the other hand, ECs in the Northern Hemisphere are characterised by a stronger deepening rate over 6 h and 24 h than in the Southern H ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000095381
Veröffentlicht am 04.06.2019
Originalveröffentlichung
DOI: 10.1080/16000870.2019.1611340
Coverbild
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Forschungsbereich Troposphäre (IMK-TRO)
Publikationstyp Zeitschriftenaufsatz
Jahr 2019
Sprache Englisch
Identifikator ISSN: 1600-0870
KITopen-ID: 1000095381
HGF-Programm 12.01.02 (POF III, LK 01)
Erschienen in Tellus / A
Band 71
Heft 1
Seiten 1–19
Schlagworte explosive cyclones, cyclone detection, tracking schemes, comparison, deepening rate, normalised deepening rate
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