Stratospheric ozone depletion through catalytic chemistry involving man‐made
chlorofluorocarbons is an area of focus in the study of geophysics and one of the global …

Abstract The Northern Hemisphere (NH) polar winter stratosphere of 2019/2020 featured an
exceptionally strong and cold stratospheric polar vortex. Wave activity from the troposphere …

Chemical ozone destruction occurs over both polar regions in local winter–spring. In the
Antarctic, essentially complete removal of lower-stratospheric ozone currently results in an …

The atmosphere displays modes of variability whose structures exhibit a strong
longitudinally symmetric (annular) component that extends from the surface to the …

Long time records of stratospheric temperatures indicate that substantial cooling has
occurred during spring over polar regions of both hemispheres. These cooling patterns are …

This work surveys the depth and character of ozone depletion in the Antarctic and Arctic
using available long balloon-borne and ground-based records that cover multiple decades …

The first simulations of stratospheric chemistry using the Chemical Lagrangian Model of the
Stratosphere (CLaMS) are reported. A comprehensive chemical assimulation procedure is …

The 1996–1997 northern hemisphere spring polar vortex was very strong, cold, and
symmetric, somewhat similar to those found in the Antarctic spring vortex. The vortex did not …

Three‐dimensional simulations of total ozone are reported for the 1996–97 Arctic winter.
The record low ozone values observed by satellite in late March are well reproduced by the …

Ozone data derived from the Tropospheric Monitoring Instrument (TROPOMI) sensor on
board the Sentinel-5 Precursor satellite show exceptionally low total ozone columns in the …