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JOURNAL OF GEOPHYSICAL RESEARCH,
VOL. 112,
D12S03,
doi:10.1029/2006JD007281,
2007
Inventory of boreal fire emissions for North America in 2004: Importance of peat burning and pyroconvective injection
Solène Turquety
Department of Earth and Planetary Sciences and Division of Engineering and Applied Sciences, Harvard University, Cambridge,
Massachusetts, USA
Jennifer A. Logan
Department of Earth and Planetary Sciences and Division of Engineering and Applied Sciences, Harvard University, Cambridge,
Massachusetts, USA
Daniel J. Jacob
Department of Earth and Planetary Sciences and Division of Engineering and Applied Sciences, Harvard University, Cambridge,
Massachusetts, USA
Rynda C. Hudman
Department of Earth and Planetary Sciences and Division of Engineering and Applied Sciences, Harvard University, Cambridge,
Massachusetts, USA
Fok Yan Leung
Department of Earth and Planetary Sciences and Division of Engineering and Applied Sciences, Harvard University, Cambridge,
Massachusetts, USA
Colette L. Heald
Department of Earth and Planetary Sciences and Division of Engineering and Applied Sciences, Harvard University, Cambridge,
Massachusetts, USA
Robert M. Yantosca
Department of Earth and Planetary Sciences and Division of Engineering and Applied Sciences, Harvard University, Cambridge,
Massachusetts, USA
Shiliang Wu
Department of Earth and Planetary Sciences and Division of Engineering and Applied Sciences, Harvard University, Cambridge,
Massachusetts, USA
Louisa K. Emmons
Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, Colorado, USA
David P. Edwards
Atmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, Colorado, USA
Glen W. Sachse
NASA Langley Research Center, Hampton, Virginia, USA
Abstract
The summer of 2004 was one of the largest fire seasons on record for Alaska and western Canada. We construct a daily bottom-up
fire emission inventory for that season, including consideration of peat burning and high-altitude (buoyant) injection, and
evaluate it in a global chemical transport model (the GEOS-Chem CTM) simulation of CO through comparison with MOPITT satellite
and ICARTT aircraft observations. The inventory is constructed by combining daily area burned reports and MODIS fire hot spots
with estimates of fuel consumption and emission factors based on ecosystem type. We estimate the contribution from peat burning
using drainage and peat distribution maps for Alaska and Canada; 17% of the reported 5.1 × 106 ha burned were located in peatlands in 2004. Our total estimate of North American fire emissions during the summer of 2004
is 30 Tg CO, including 11 Tg from peat. Including peat burning in the GEOS-Chem simulation improves agreement with MOPITT
observations. The long-range transport of fire plumes observed by MOPITT suggests that the largest fires injected a significant
fraction of their emissions in the upper troposphere.
Received 9
March
2006;
accepted 27
December
2006;
published 3
April
2007.
Keywords: biomass burning;
tropospheric chemistry;
carbon monoxide.
Index Terms: 0322 Atmospheric Composition and Structure: Constituent sources and sinks; 0368 Atmospheric Composition and Structure: Troposphere: constituent transport and chemistry; 0345 Atmospheric Composition and Structure: Pollution: urban and regional (0305, 0478, 4251).
Read Full Article (file size: 543227 bytes) Cited by
Citation: Turquety, S., et al.
(2007),
Inventory of boreal fire emissions for North America in 2004: Importance of peat burning and pyroconvective injection,
J. Geophys. Res.,
112,
D12S03,
doi:10.1029/2006JD007281.
Copyright 2007 by the American Geophysical Union.
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