Calculations of ozone destruction during the 1988/89 Arctic winter

D. S. McKenna, R. L. Jones, L. R. Poole, S. Solomon, D. W. Fahey, K. K. Kelly, M. H. Proffitt, William Henry Brune, M. Loewenstein, K. R. Chan

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Abstract

Calculations of ozone depletion during the 1988/89 Arctic winter using a Lagrangian coupled photochemical‐microphysical model are presented in this paper. Abundances of ClO in excess of 1 ppbv were observed at the end of the Airborne Arctic Stratospheric Expedition (AASE) on February 10, 1989. These are shown to be consistent with the removal of more than 90% of the reactive nitrogen and the conversion of more than 80% of reservoir chlorine to active forms. This chemical state implies that ozone losses of more than 20 ppbv per day can be sustained in heavily denitrified air throughout much of February according to current photochemistry. As much as 74% of the loss is calculated to be due to ClO dimer photolysis. Following the warming of the vortex in mid February 1989, ozone loss through ClO dimer photolysis becomes less effective as the rate of thermal decomposition of the ClO dimer increases. Thus, model results suggest that thermal decomposition of the dimer plays an important role in limiting ozone loss in the Arctic spring.

Original languageEnglish (US)
Pages (from-to)553-556
Number of pages4
JournalGeophysical Research Letters
Volume17
Issue number4
DOIs
StatePublished - Jan 1 1990

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winter
ozone
destruction
dimers
thermal decomposition
photolysis
ozone depletion
expeditions
photochemistry
photochemical reactions
chlorine
vortex
warming
vortices
nitrogen
heating
calculation
loss
air

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

Cite this

McKenna, D. S., Jones, R. L., Poole, L. R., Solomon, S., Fahey, D. W., Kelly, K. K., ... Chan, K. R. (1990). Calculations of ozone destruction during the 1988/89 Arctic winter. Geophysical Research Letters, 17(4), 553-556. https://doi.org/10.1029/GL017i004p00553
McKenna, D. S. ; Jones, R. L. ; Poole, L. R. ; Solomon, S. ; Fahey, D. W. ; Kelly, K. K. ; Proffitt, M. H. ; Brune, William Henry ; Loewenstein, M. ; Chan, K. R. / Calculations of ozone destruction during the 1988/89 Arctic winter. In: Geophysical Research Letters. 1990 ; Vol. 17, No. 4. pp. 553-556.
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McKenna, DS, Jones, RL, Poole, LR, Solomon, S, Fahey, DW, Kelly, KK, Proffitt, MH, Brune, WH, Loewenstein, M & Chan, KR 1990, 'Calculations of ozone destruction during the 1988/89 Arctic winter', Geophysical Research Letters, vol. 17, no. 4, pp. 553-556. https://doi.org/10.1029/GL017i004p00553

Calculations of ozone destruction during the 1988/89 Arctic winter. / McKenna, D. S.; Jones, R. L.; Poole, L. R.; Solomon, S.; Fahey, D. W.; Kelly, K. K.; Proffitt, M. H.; Brune, William Henry; Loewenstein, M.; Chan, K. R.

In: Geophysical Research Letters, Vol. 17, No. 4, 01.01.1990, p. 553-556.

Research output: Contribution to journalArticle

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AU - Proffitt, M. H.

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McKenna DS, Jones RL, Poole LR, Solomon S, Fahey DW, Kelly KK et al. Calculations of ozone destruction during the 1988/89 Arctic winter. Geophysical Research Letters. 1990 Jan 1;17(4):553-556. https://doi.org/10.1029/GL017i004p00553