Dramatic springtime depletions of ozone in polar regions require that polar stratospheric air
has a high degree of dynamical isolation and extremely cold temperatures necessary for the …

Winds derived from analyzed geopotential height fields are used to study quasi‐horizontal
mixing by the large‐scale flow in the lower stratosphere during austral spring. This is the …

Particle size and volume measurements obtained with the forward scattering spectrometer
probe (FSSP), model 300 during January and February 1989 in the Airborne Arctic …

Measurements of total reactive nitrogen (NOy), total water, and aerosol were made as part of
the Airborne Antarctic Ozone Experiment during August and September 1987. The …

Measurements of total water were made with Lyman α resonance fluorescence hygrometers
mounted on the ER‐2 and DC‐8 aircraft. Direct evidence was obtained for dehydration of …

Severe stratospheric ozone depletion is the result of perturbations of chlorine chemistry
owing to the presence of polar stratospheric clouds (PSCs) during periods of limited …

Using the general circulation model of the Etablissement d'Etudes et de Recherches
Météorologiques, a comprehensive simulation is made of the springtime Antarctic ozone …

Evidence from the ER‐2 and DC‐8 aircraft flights is considered, together with analyses of
temperature, winds, potential vorticity and trajectories, satellite data, and ozonesonde …

Severe vortex-wide ozone loss in the Arctic would expose both ecosystems and several
millions of people to unhealthy ultraviolet radiation. Adding to these worries, and extreme …

We investigate the extent to which quantities that are based on total column ozone are
applicable as measures of ozone loss in the polar vortices. Such quantities have been used …