Impact of the 2002, Southern Hemisphere, stratospheric warming on the tropical cirrus clouds and convective activity

Nawo Eguchi, Kunihiko Kodera

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Tropical cirrus cloud variation associated with the southern hemisphere stratospheric sudden warming (SSW) in September 2002 was investigated using data from MODIS/impacts Terra. During the SSW, enhanced wave forcings induced upwelling in the tropical stratosphere, which further extended into the equatorial troposphere. This initial perturbation of the tropospheric upwelling developed in the southern tropical troposphere through increased mass- and water vapor convergence in the lower level leading to deep convection. Cirrus cloud was first formed by the low temperature due to upwelling associated with the SSW, and it persisted for a few weeks after the end of SSW due to the low temperature associated with the Kelvin-wave response to a deep convection triggered by the SSW.

Original languageEnglish
Article numberL05819
JournalGeophysical Research Letters
Volume34
Issue number5
DOIs
Publication statusPublished - Mar 16 2007
Externally publishedYes

Fingerprint

stratospheric warming
cirrus clouds
Southern Hemisphere
cirrus
warming
upwelling water
heating
upwelling
troposphere
convection
Kelvin waves
Kelvin wave
MODIS (radiometry)
stratosphere
MODIS
water vapor
perturbation
sudden stratospheric warming

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences (miscellaneous)

Cite this

Impact of the 2002, Southern Hemisphere, stratospheric warming on the tropical cirrus clouds and convective activity. / Eguchi, Nawo; Kodera, Kunihiko.

In: Geophysical Research Letters, Vol. 34, No. 5, L05819, 16.03.2007.

Research output: Contribution to journalArticle

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