Article (Scientific journals)
Biomass Burning Unlikely to Account for Missing Source of Carbonyl Sulfide
Stinecipher, James R.; Cameron-Smith, Philip J.; Blake, Nicola J. et al.
2019In Geophysical Research Letters, 46 (24), p. 14912-14920
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Keywords :
carbonyl sulfide; biomass burning; atmospheric budget; atmospheric composition; long-term monitoring; atmospheric modelling; emission factor; emission ratio; trace gases; forest fire
Abstract :
[en] Carbonyl sulfide (OCS) provides a proxy for measuring photosynthesis and is the primary background source of stratospheric aerosols. OCS emissions due to biomass burning are a variable and substantial (over 10%) part of the current OCS budget. OCS emission ratios from open burning fires, coupled with 1997–2016 data from the Global Fire Emissions Database (GFED4), yield OCS biomass burning emissions with a global average annual flux of 60 ± 37 Gg(S)/year. A global box model suggests these emissions are more consistent with observations from global atmospheric composition monitoring networks than fluxes derived from previous synthesis papers. Even after considering the uncertainty in emission factor observations for each category of emissions and the interannual variation in total burned dry matter, the total OCS emissions from open burning are insufficient to account for the large imbalance between current estimates of global OCS sources and sinks.
Research center :
Sphères - SPHERES
Disciplines :
Earth sciences & physical geography
Author, co-author :
Stinecipher, James R.
Cameron-Smith, Philip J.
Blake, Nicola J.
Kuai, Le
Lejeune, Bernard ;  Université de Liège - ULiège > Form. doct. sc. (sc. spatiales - Bologne)
Mahieu, Emmanuel  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Groupe infra-rouge de phys. atmosph. et solaire (GIRPAS)
Simpson, Isobel J.
Campbell, John Elliott
Language :
English
Title :
Biomass Burning Unlikely to Account for Missing Source of Carbonyl Sulfide
Publication date :
December 2019
Journal title :
Geophysical Research Letters
ISSN :
0094-8276
eISSN :
1944-8007
Publisher :
Wiley, Washington, United States - District of Columbia
Volume :
46
Issue :
24
Pages :
14912-14920
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
BELSPO - Politique scientifique fédérale [BE]
Office Fédéral de Météorologie et de Climatologie MétéoSuisse [CH]
FWB - Fédération Wallonie-Bruxelles [BE]
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since 06 December 2019

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