Calculations of ozone destruction during the 1988/89 Arctic winter

Details Calculations of ozone destruction during the 1988/89 Arctic winter Calculations of ozone destruction during the 1988/89 Arctic winter

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990georl..17..553m&link_type=abstract

Geophysical Research Letters, Supplement (ISSN 0094-8276), vol. 17, March 1990, p. 553-556. Research supported by the Department

Physics

46

Arctic Regions, Atmospheric Chemistry, Ozone Depletion, Reaction Kinetics, Chlorine Oxides, Photolysis, Winter

Scientific paper

Calculations of ozone depletion during the 1988/89 Arctic winter using a Lagrangian coupled photochemical-microphysical model are presented. Abundances of ClO in excess of 1 ppbv were observed at the end of the Airborne Arctic Stratospheric Expedition on February 10, 1989. These are shown to be consistent with the removal of more than 90 percent of the reactive nitrogen and the conversion of more than 80 percent of reservoir chlorine to active forms. This chemical state implies that ozone losses of more than 20 ppbv/day can be sustained in heavily denitrified air throughout much of February according to current photochemistry. As much as 74 percent 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.

Affiliated with

Also associated with

No associations

Rating

Calculations of ozone destruction during the 1988/89 Arctic winter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Calculations of ozone destruction during the 1988/89 Arctic winter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calculations of ozone destruction during the 1988/89 Arctic winter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1887534