BALLOON-BORNE IN-SITU MEASUREMENTS OF CLO AND OZONE - IMPLICATIONS FOR HETEROGENEOUS CHEMISTRY AND MIDLATITUDE OZONE LOSS Academic Article uri icon

abstract

  • In situ measurements of chlorine oxide (ClO) obtained on 31 March 1991 with a new balloonborne instrument are compared to results from a photochemical model which incorporates hydrolysis of N2O5 on sulfate aerosols. With the addition of this process, there is better agreement between calculation and measurement over most of the profile, except below 20 km where observed ClO is greater by as much as a factor of four. In a model which is constrained to reproduce the observed ClO below 20 km, ozone loss by catalytic cycles involving halogen oxides becomes larger than that from NOx, which would dominate under gasphase or standard heterogeneous conditions. Copyright 1993 by the American Geophysical Union.

published proceedings

  • GEOPHYSICAL RESEARCH LETTERS

author list (cited authors)

  • AVALLONE, L. M., TOOHEY, D. W., BRUNE, W. H., SALAWITCH, R. J., DESSLER, A. E., & ANDERSON, J. G.

citation count

  • 40

complete list of authors

  • AVALLONE, LM||TOOHEY, DW||BRUNE, WH||SALAWITCH, RJ||DESSLER, AE||ANDERSON, JG

publication date

  • September 1993