Transport of ozone to the surface by convective downdrafts at night

Alan K. Betts, Luciana V. Gatti, Ana Maria Cordova, Maria A.F. Silva Dias, Jose D. Fuentes

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Abstract

During the Large-Scale Biosphere-Atmosphere Experiment in Amazonia wet season experiment, the near-surface measurements of equivalent potential temperature and ozone at night, when background levels of ozone are low, clearly show that convective downdrafts rapidly transport air with higher ozone and lower equivalent potential temperature down to the surface from around 800 hPa. This largely unreported downward transport of ozone may play a significant role in the photochemistry of the atmosphere boundary layer and increase the surface deposition of ozone.

Original languageEnglish (US)
Pages (from-to)LBA 13-1-LBA 13-6
JournalJournal of Geophysical Research: Atmospheres
Volume107
Issue number20
DOIs
StatePublished - Jan 1 2002

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All Science Journal Classification (ASJC) codes

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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