As a result of the 1987 Montreal Protocol and its amendments, the atmospheric loading of
anthropogenic ozone-depleting substances is decreasing. Accordingly, the stratospheric …

From the earliest observations of ozone in the lower atmosphere in the 19th century, both
measurement methods and the portion of the globe observed have evolved and changed …

The Tropospheric Ozone Assessment Report (TOAR) is an activity of the International Global
Atmospheric Chemistry Project. This paper is a component of the report, focusing on the …

Ozone forms in the Earth's atmosphere from the photodissociation of molecular oxygen,
primarily in the tropical stratosphere. It is then transported to the extratropics by the Brewer …

Ozone profile trends over the period 2000 to 2016 from several merged satellite ozone data
sets and from ground-based data measured by four techniques at stations of the Network for …

This study presents an updated evaluation of stratospheric ozone profile trends in the 60° S–
60° N latitude range over the 2000–2020 period, using an updated version of the Long-term …

Throughout spring and summer 2020, ozone stations in the northern extratropics recorded
unusually low ozone in the free troposphere. From April to August, and from 1 to 8 kilometers …

FIG. S2. 10. Temperature trends (C decade–1) for the tropics at various tropospheric levels
for 1979–2016. The top box indicates trends for the tropical atmospheric layer known as the …

Trends in the vertical distribution of ozone are reported and compared for a number of new
and recently revised data sets. The amount of ozone-depleting compounds in the …

This Report summarises the main results obtained during the first year of the LOTUS activity,
which was targeted at providing timely inputs to the 2018 WMO/UNEP Ozone Assessment …