Idir Bouarar

TL;DR: The MEGANv2.1 data set was used to create a global emission data set of biogenic volatile organic compounds (BVOC) available on a monthly basis for the time period of 1980-2010 as discussed by the authors.

TL;DR: In this article, the authors describe the data assimilation setup of the new Composition-IFS (C-IFS) with respect to reactive gases and validates analysis fields of ozone (O3), carbon monoxide (CO), and nitrogen dioxide (NO2) for the year 2008 against independent observations and a control run.

TL;DR: In this paper, the role of surface sources and sinks with a series of MOZART (Model for Ozone And Related Tracers) model sensitivity studies for the year 2008 and compare their results to observational data from ground-based stations, satellite observations, and vertical profiles from measurements on passenger aircraft.

TL;DR: In this paper, the authors compared nine global and two regional chemical transport models using a common emissions inventory to quantify the differences in model chemistry and transport schemes, and found that the largest differences among models and between models and observations were in NOy partitioning (PAN vs. HNO3) and in oxygenated volatile organic compounds (VOCs) such as acetaldehyde and acetone.

TL;DR: The European MACC (Monitoring Atmospheric Composition and Climate) project is preparing the operational Copernicus Atmosphere Monitoring Service (CAMS), one of the services of the European COPernicus Programme on Earth observation and environmental services as discussed by the authors.