Evidence of convective transport in tropical West Pacific region during SHIVA experiment

Gisèle Krysztofiak, Valéry Catoire, Paul D. Hamer, Virginie Marécal, Claude Robert, Andreas Engel, Harald Bönisch, Katja Grossmann, Birgit Quack, Elliot L Atlas, Klaus Pfeilsticker

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Air masses in the convective outflows of four large convective systems near Borneo Island in Malaysia were sampled in the height range 11-13km within the frame of the SHIVA (Stratospheric Ozone: Halogen Impacts in a Varying Atmosphere) FP7 European project in November and December 2011. Correlated enhancements of CO, CH4 and the short-lived halogen species (CH3I and CHBr3) were detected when the aircraft crossed the anvils of the four systems. These enhancements were interpreted as the fingerprint of vertical transport from the boundary layer by the convective updraft and then horizontal advection in the outflow. For the four observations, the fraction f of air from the boundary layer ranged between 15 and 67%, showing the variability in transport efficiency depending on the dynamics of the convective system.

Original languageEnglish (US)
JournalAtmospheric Science Letters
DOIs
StateAccepted/In press - Jan 1 2018

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convective system
halogen
outflow
boundary layer
ozone
atmosphere
updraft
air mass
aircraft
advection
experiment
air
project

Keywords

  • Aircraft
  • Convective transport
  • in situ measurements
  • VSLS transport

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Krysztofiak, G., Catoire, V., Hamer, P. D., Marécal, V., Robert, C., Engel, A., ... Pfeilsticker, K. (Accepted/In press). Evidence of convective transport in tropical West Pacific region during SHIVA experiment. Atmospheric Science Letters. https://doi.org/10.1002/asl.798

Evidence of convective transport in tropical West Pacific region during SHIVA experiment. / Krysztofiak, Gisèle; Catoire, Valéry; Hamer, Paul D.; Marécal, Virginie; Robert, Claude; Engel, Andreas; Bönisch, Harald; Grossmann, Katja; Quack, Birgit; Atlas, Elliot L; Pfeilsticker, Klaus.

In: Atmospheric Science Letters, 01.01.2018.

Research output: Contribution to journalArticle

Krysztofiak, G, Catoire, V, Hamer, PD, Marécal, V, Robert, C, Engel, A, Bönisch, H, Grossmann, K, Quack, B, Atlas, EL & Pfeilsticker, K 2018, 'Evidence of convective transport in tropical West Pacific region during SHIVA experiment', Atmospheric Science Letters. https://doi.org/10.1002/asl.798
Krysztofiak, Gisèle ; Catoire, Valéry ; Hamer, Paul D. ; Marécal, Virginie ; Robert, Claude ; Engel, Andreas ; Bönisch, Harald ; Grossmann, Katja ; Quack, Birgit ; Atlas, Elliot L ; Pfeilsticker, Klaus. / Evidence of convective transport in tropical West Pacific region during SHIVA experiment. In: Atmospheric Science Letters. 2018.
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AU - Robert, Claude

AU - Engel, Andreas

AU - Bönisch, Harald

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