title: Chlorine oxide in the stratospheric ozone layer: ground-based detection and measurement.
abstract: Stratospheric chlorine oxide, a significant intermediate product in the catalytic destruction of ozone by atomic chlorine, has been detected and measured by a ground-based 204-gigahertz, millimeter-wave receiver. Data taken at latitude 42 degrees N on 17 days between 10 January and 18 February 1980 yield an average chlorine oxide column density of approximately 1.05 x 10(14) per square centimeter or approximately 2/3 that of the average of eight in situ balloon flight measurements (excluding the anomalously high data of 14 July 1977) made over the past 4 years at 32 degrees N. We find less chlorine oxide below 35 kilometers and a larger vertical gradient than predicted by theoretical models of the stratospheric ozone layer.
authors.forename: A
authors.initials: A
authors.lastname: Parrish
authors.forename: R L
authors.initials: RL
authors.lastname: DE Zafra
authors.forename: P M
authors.initials: PM
authors.lastname: Solomon
authors.forename: J W
authors.initials: JW
authors.lastname: Barrett
authors.forename: E R
authors.initials: ER
authors.lastname: Carlson