P. Bergamaschi

TL;DR: In this article, the authors present a comprehensive description and benchmark evaluation of the tropospheric chemistry version of the global chemistry transport model TM5 (Tracer Model 5, version TM5-chem-v3.0).

TL;DR: In this article, a reanalysis of global CH4 emissions during the 2000s, based on the TM5-4DVAR inverse modeling system, is presented, which is optimized using high-accuracy surface observations from NOAA ESRL's global air sampling network for 2000-2010 combined with retrievals of column-averaged CH4 mole fractions from SCIAMACHY onboard ENVISAT (starting 2003).

TL;DR: In this article, a long-term data set of column-averaged methane mixing ratios retrieved from spectra of the Scanning Imaging Absorption Spectrometer for Atmospheric Cartography (SCIAMACHY) instrument onboard Envisat is reported.

TL;DR: In this paper, a variational data assimilation system for inverse modeling of atmospheric methane emissions is presented, which can be used for assimilating large volumes of measurements, in particular satellite observations and quasi-continuous in-situ observations, and at the same time enables the optimization of a large number of model parameters.

TL;DR: The occurrence of mass-independent fractionation in the reaction of CO with OH raises fundamental questions about kinetic processes and is a useful marker for the degree to which CO in the atmosphere has been reacting with OH.