par Krol, Maarten;Peters, Wouter;Hooghiemstra, P.;George, Michael;Clerbaux, Cathy ;Hurtmans, Daniel ;McInerney, Daniel;Sedano, Fernando;Bergamaschi, Peter;El Hajj, M.;Kaiser, Johannes;Fisher, Daniel;Yershov, Vladimir;Muller, Jan Peter
Référence Atmospheric chemistry and physics, 13, 9, page (4737-4747)
Publication Publié, 2013-05
Référence Atmospheric chemistry and physics, 13, 9, page (4737-4747)
Publication Publié, 2013-05
Article révisé par les pairs
Résumé : | The fires around Moscow in July and August 2010 emitted a large amount of pollutants to the atmosphere. Here we estimate the carbon monoxide (CO) source strength of the Moscow fires in July and August by using the TM5-4DVAR system in combination with CO column observations of the Infrared Atmospheric Sounding Interferometer (IASI). It is shown that the IASI observations provide a strong constraint on the total emissions needed in the model. Irrespective of the prior emissions used, the optimised CO fire emission estimates from mid-July to mid-August 2010 amount to approximately 24TgCO. This estimate depends only weakly (< 15%) on the assumed diurnal variations and injection height of the emissions. However, the estimated emissions might depend on unaccounted model uncertainties such as vertical transport. Our emission estimate of 22-27 TgCO during roughly one month of intense burning is less than suggested by another recent study, but substantially larger than predicted by the bottom-up inventories. This latter discrepancy suggests that bottom-up emission estimates for extreme peat burning events require improvements. © Author(s) 2013. |