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Atmospheric Chemistry and Physics An interactive open-access journal of the European Geosciences Union
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Volume 13, issue 8
Atmos. Chem. Phys., 13, 4171-4181, 2013
https://doi.org/10.5194/acp-13-4171-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Chem. Phys., 13, 4171-4181, 2013
https://doi.org/10.5194/acp-13-4171-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 18 Apr 2013

Research article | 18 Apr 2013

Exceptional emissions of NH3 and HCOOH in the 2010 Russian wildfires

Y. R'Honi1, L. Clarisse1, C. Clerbaux1,2, D. Hurtmans1, V. Duflot1, S. Turquety3, Y. Ngadi1, and P.-F. Coheur1 Y. R'Honi et al.
  • 1Spectroscopie de l'Atmosphère, Chimie Quantique et Photophysique, Université Libre de Bruxelles (U.L.B.), Brussels, Belgium
  • 2UPMC Univ. Paris 06, Université Versailles St.-Quentin, CNRS/INSU, LATMOS-IPSL, Paris, France
  • 3UPMC Univ. Paris 06, CNRS/INSU, LMD-IPSL, Paris, France

Abstract. In July 2010, several hundred forest and peat fires broke out across central Russia during its hottest summer on record. Here, we analyze these wildfires using observations of the Infrared Atmospheric Sounding Interferometer (IASI). Carbon monoxide (CO), ammonia (NH3) and formic acid (HCOOH) total columns are presented for the year 2010. Maximum total columns were found to be one order (for CO and HCOOH) and two orders (for NH3) of magnitude larger than typical background values. The temporal evolution of NH3 and HCOOH enhancement ratios relative to CO are presented. Evidence of secondary formation of HCOOH is found, with enhancement ratios exceeding reported emission ratios in fresh plumes. We estimate the total emitted masses for the period July–August 2010 over the center of western Russia; they are 19–33 Tg (CO), 0.7–2.6 Tg (NH3) and 0.9–3.9 Tg (HCOOH). For NH3 and HCOOH, these quantities are comparable to what is emitted in the course of a whole year by all extratropical forest fires.

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