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AGU: Journal of Geophysical Research, Atmospheres

 

Keywords

  • multiple tropopause
  • radiosonde data
  • climatology

Index Terms

  • Atmospheric Processes: Climatology
  • Atmospheric Processes: Stratosphere/troposphere interactions
  • Atmospheric Composition and Structure: Troposphere: composition and chemistry
  • Atmospheric Composition and Structure: Middle atmosphere: composition and chemistry
Abstract
Cited By
 

Abstract

Climatological features of global multiple tropopause events

Juan A. Añel

CESAM, Departamento de Física, Universidade de Aveiro, Aveiro, Portugal

Facultade de Ciencias de Ourense, Universidade de Vigo, Ourense, Spain

Juan C. Antuña

Estación Lídar de Camagüey, Camagüey, Cuba

Laura de la Torre

CESAM, Departamento de Física, Universidade de Aveiro, Aveiro, Portugal

Facultade de Ciencias de Ourense, Universidade de Vigo, Ourense, Spain

José M. Castanheira

CESAM, Departamento de Física, Universidade de Aveiro, Aveiro, Portugal

Luis Gimeno

Facultade de Ciencias de Ourense, Universidade de Vigo, Ourense, Spain

This study examines various climatological features related to multiple tropopause events (MT events). The analysis is based on the lapse rate definition of the tropopause and is performed on a radiosonde data subset taken from the Integrated Global Radiosonde Archive database. The global statistics of MT events are analyzed, taking into consideration both their seasonal and geographical variations. Our results are in moderate qualitative agreement with those of earlier studies. They reinforce the analytical findings of other researchers, but at the same time highlight important differences in both the number and position of the maximum occurrence of MT events. We found a latitudinal band of multiple tropopause occurrence in the Northern Hemisphere and three centers in the Southern Hemisphere, which coincided with identified zones of maximum cyclogenesis. The climatological features of pressure, temperature, and vertical separation of MT events revealed the complexity of these phenomena, which behave very differently according to latitude and season.

Received 10 December 2007; accepted 25 August 2008; published 27 November 2008.

Citation: Añel, J. A., J. C. Antuña, L. de la Torre, J. M. Castanheira, and L. Gimeno (2008), Climatological features of global multiple tropopause events, J. Geophys. Res., 113, D00B08, doi:10.1029/2007JD009697.

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