Analysis of the Transition of an Explosive Cyclone to a Mediterranean Tropical-like Cyclone

This study investigates the dynamics of the development phases of a Mediterranean tropical-like cyclone (medicane) in the southern Ionian Sea, on 28 September 2018 that caused high impact phenomena in the central and eastern Mediterranean, focusing on the transition from explosive cyclone to medican...

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Autores principales:	John Kouroutzoglou, Ioannis Samos, Helena A. Flocas, Maria Hatzaki, Christos Lamaris, Anna Mamara, Antonios Emmannouil
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	medicanes Mediterranean cyclones warm core systems explosive cyclones cyclone dynamics Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/76909ec7c1b740c1afd986a3fb3975fe
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id	oai:doaj.org-article:76909ec7c1b740c1afd986a3fb3975fe
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spelling	oai:doaj.org-article:76909ec7c1b740c1afd986a3fb3975fe2021-11-25T16:44:47ZAnalysis of the Transition of an Explosive Cyclone to a Mediterranean Tropical-like Cyclone10.3390/atmos121114382073-4433https://doaj.org/article/76909ec7c1b740c1afd986a3fb3975fe2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4433/12/11/1438https://doaj.org/toc/2073-4433This study investigates the dynamics of the development phases of a Mediterranean tropical-like cyclone (medicane) in the southern Ionian Sea, on 28 September 2018 that caused high impact phenomena in the central and eastern Mediterranean, focusing on the transition from explosive cyclone to medicane. The symmetry and the warm core structure of the system have been demonstrated via phase space diagrams determining three phases of the system development that are then supported on a dynamical basis. During the first phase of the system, baroclinic instability triggered the formation of the explosive cyclone, when strong upper-level PV anomalies at the dynamic tropopause level moved towards a pre-existed area of enhanced low-level baroclinicity over the coastal areas of Libya along with positive SST anomalies. The surface frontal structure was enhanced under the influence of the upper-level dynamic processes. During the second phase when the medicane formed, low-level diabatic processes determined the evolution of the surface cyclone, without any significant support from baroclinic processes in the upper troposphere. The distortion of the low-level baroclinicity and the frontal structure began after the initial weakening of the upper-level dynamics. During the third phase, the system remained barotropic, being affected by similar mechanisms as in the second phase but with lower intensity. The transition mechanism is not only the result of the seclusion of warm air in the cyclone core but, mainly, the continuation of an explosive cyclone or an intense cyclone when the occlusion began to form.John KouroutzoglouIoannis SamosHelena A. FlocasMaria HatzakiChristos LamarisAnna MamaraAntonios EmmannouilMDPI AGarticlemedicanesMediterranean cycloneswarm core systemsexplosive cyclonescyclone dynamicsMeteorology. ClimatologyQC851-999ENAtmosphere, Vol 12, Iss 1438, p 1438 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	medicanes Mediterranean cyclones warm core systems explosive cyclones cyclone dynamics Meteorology. Climatology QC851-999
spellingShingle	medicanes Mediterranean cyclones warm core systems explosive cyclones cyclone dynamics Meteorology. Climatology QC851-999 John Kouroutzoglou Ioannis Samos Helena A. Flocas Maria Hatzaki Christos Lamaris Anna Mamara Antonios Emmannouil Analysis of the Transition of an Explosive Cyclone to a Mediterranean Tropical-like Cyclone
description	This study investigates the dynamics of the development phases of a Mediterranean tropical-like cyclone (medicane) in the southern Ionian Sea, on 28 September 2018 that caused high impact phenomena in the central and eastern Mediterranean, focusing on the transition from explosive cyclone to medicane. The symmetry and the warm core structure of the system have been demonstrated via phase space diagrams determining three phases of the system development that are then supported on a dynamical basis. During the first phase of the system, baroclinic instability triggered the formation of the explosive cyclone, when strong upper-level PV anomalies at the dynamic tropopause level moved towards a pre-existed area of enhanced low-level baroclinicity over the coastal areas of Libya along with positive SST anomalies. The surface frontal structure was enhanced under the influence of the upper-level dynamic processes. During the second phase when the medicane formed, low-level diabatic processes determined the evolution of the surface cyclone, without any significant support from baroclinic processes in the upper troposphere. The distortion of the low-level baroclinicity and the frontal structure began after the initial weakening of the upper-level dynamics. During the third phase, the system remained barotropic, being affected by similar mechanisms as in the second phase but with lower intensity. The transition mechanism is not only the result of the seclusion of warm air in the cyclone core but, mainly, the continuation of an explosive cyclone or an intense cyclone when the occlusion began to form.
format	article
author	John Kouroutzoglou Ioannis Samos Helena A. Flocas Maria Hatzaki Christos Lamaris Anna Mamara Antonios Emmannouil
author_facet	John Kouroutzoglou Ioannis Samos Helena A. Flocas Maria Hatzaki Christos Lamaris Anna Mamara Antonios Emmannouil
author_sort	John Kouroutzoglou
title	Analysis of the Transition of an Explosive Cyclone to a Mediterranean Tropical-like Cyclone
title_short	Analysis of the Transition of an Explosive Cyclone to a Mediterranean Tropical-like Cyclone
title_full	Analysis of the Transition of an Explosive Cyclone to a Mediterranean Tropical-like Cyclone
title_fullStr	Analysis of the Transition of an Explosive Cyclone to a Mediterranean Tropical-like Cyclone
title_full_unstemmed	Analysis of the Transition of an Explosive Cyclone to a Mediterranean Tropical-like Cyclone
title_sort	analysis of the transition of an explosive cyclone to a mediterranean tropical-like cyclone
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/76909ec7c1b740c1afd986a3fb3975fe
work_keys_str_mv	AT johnkouroutzoglou analysisofthetransitionofanexplosivecyclonetoamediterraneantropicallikecyclone AT ioannissamos analysisofthetransitionofanexplosivecyclonetoamediterraneantropicallikecyclone AT helenaaflocas analysisofthetransitionofanexplosivecyclonetoamediterraneantropicallikecyclone AT mariahatzaki analysisofthetransitionofanexplosivecyclonetoamediterraneantropicallikecyclone AT christoslamaris analysisofthetransitionofanexplosivecyclonetoamediterraneantropicallikecyclone AT annamamara analysisofthetransitionofanexplosivecyclonetoamediterraneantropicallikecyclone AT antoniosemmannouil analysisofthetransitionofanexplosivecyclonetoamediterraneantropicallikecyclone
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Analysis of the Transition of an Explosive Cyclone to a Mediterranean Tropical-like Cyclone

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