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Copyright Copernicus GmbH 2013

Abstract

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 24 Tg CO. 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 Tg CO 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.

Details

Title
How much CO was emitted by the 2010 fires around Moscow?
Author
Krol, M.; Peters, W.; Hooghiemstra, P.; George, M.; Clerbaux, C.; Hurtmans, D.; McInerney, D.; Sedano, F.; Bergamaschi, P.; Hajj, M. El; Kaiser, J. W.; Fisher, D.; Yershov, V.; Muller, J.-P.
First page
4737
Publication year
2013
Publication date
2013
Publisher
Copernicus GmbH
ISSN
16807316
e-ISSN
16807324
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
1349762784
Copyright
Copyright Copernicus GmbH 2013