The goal of the Tropospheric Ozone Assessment Report (TOAR) is to provide the research
community with an up-to-date scientific assessment of tropospheric ozone, from the surface …

The Arctic region is a harbinger of global change and is warming at a rate higher than the
global average. While Arctic warming is driven by increases in anthropogenic greenhouse …

Ozone holds a certain fascination in atmospheric science. It is ubiquitous in the atmosphere,
central to tropospheric oxidation chemistry, yet harmful to human and ecosystem health as …

A new global reanalysis data set of atmospheric composition (AC) for the period 2003–2015
has been produced by the Copernicus Atmosphere Monitoring Service (CAMS). Satellite …

Chlorine atoms (Cl) are highly reactive toward hydrocarbons in the Earth's troposphere,
including the greenhouse gas methane (CH4). However, the regional and global CH4 sink …

A representation of atmospheric chemistry has been included in the Integrated Forecasting
System (IFS) of the European Centre for Medium-Range Weather Forecasts (ECMWF). The …

The Community Atmosphere Model (CAM), version 5, is now coupled to extensive
tropospheric and stratospheric chemistry, called CAM5-chem, and is available in addition to …

Long-term observations of reactive gases in the troposphere are important for understanding
trace gas cycles and the oxidation capacity of the atmosphere, assessing impacts of …

We perform a source attribution for tropospheric and ground-level ozone using a novel
technique that accounts separately for the contributions of the two chemically distinct emitted …

The Northern Eurasian regions and Arctic Ocean will very likely undergo substantial
changes during the next decades. The arctic-boreal natural environments play a crucial role …