Variability of fire carbon emissions in Equatorial Asia and its non-linear sensitivity to El Niño
Yin, Yi (Laboratoire des Sciences du Climat et de L'Environnement)
Ciais, Philippe (Laboratoire des Sciences du Climat et de L'Environnement)
Chevallier, Frédéric (Laboratoire des Sciences du Climat et de L'Environnement)
Van der Werf, Guido R. (Vrije Universiteit Amsterdam. Cluster aarde en klimaat)
Fanin, Thierry (Vrije Universiteit Amsterdam. Cluster aarde en klimaat)
Broquet, Grégoire (Laboratoire des Sciences du Climat et de L'Environnement)
Boesch, Hartmut (University of Leicester. Department of Physics and Astronomy)
Cozic, Anne (Laboratoire des Sciences du Climat et de L'Environnement)
Hauglustaine, Didier (Laboratoire des Sciences du Climat et de l'Environment)
Szopa, Sophie (Laboratoire des Sciences du Climat et de l'Environment)
Wang, Yilong (Laboratoire des Sciences du Climat et de l'Environment)

Date:	2016
Abstract:	The large peatland carbon stocks in the land use change-affected areas of equatorial Asia are vulnerable to fire. Combining satellite observations of active fire, burned area, and atmospheric concentrations of combustion tracers with a Bayesian inversion, we estimated the amount and variability of fire carbon emissions in equatorial Asia over the period 1997-2015. Emissions in 2015 were of 0. 51 ± 0. 17 Pg carbon-less than half of the emissions from the previous 1997 extreme El Niño, explained by a less acute water deficit. Fire severity could be empirically hindcasted from the cumulative water deficit with a lead time of 1 to 2 months. Based on CMIP5 climate projections and an exponential empirical relationship found between fire carbon emissions and water deficit, we infer a total fire carbon loss ranging from 12 to 25 Pg by 2100 which is a significant positive feedback to climate warming.
Grants:	European Commission 610028
Rights:	Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.
Language:	Anglès
Document:	Article ; recerca ; Versió acceptada per publicar
Subject:	Peat fire ; Carbon emissions ; Atmospheric inversion ; Carbon monoxide ; MOPITT ; Carbon cycle
Published in:	Geophysical research letters, Vol. 43, issue 19 (Oct. 2016) , p. 10.472-10.479, ISSN 0094-8276

DOI: 10.1002/2016GL070971

Post-print 16 p, 7.3 MB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
Articles > Research articles
Articles > Published articles