Ross_et_al-2013-Geophysical_Research_Letters.pdf (2.91 MB)
First satellite measurements of carbon dioxide and methane emission ratios in wildfire plumes
journal contribution
posted on 2016-12-12, 18:16 authored by A. N. Ross, M. J. Wooster, Hartmut Boesch, Robert ParkerUsing methane and carbon dioxide atmospheric mixing
ratios retrieved using SWIR spectra from the Greenhouse
Gases Observing SATellite (GOSAT), we report the first
wildfire plume CH4 to CO2 emission ratios (ERCH4/CO2)
determined from space. We demonstrate the approach’s
potential using forward modeling and identify a series of
real GOSAT spectra containing wildfire plumes. These
show significantly changed total-column CO2 and CH4
mixing ratios, and from these we calculate ERCH4/CO2 for
boreal forest, tropical forest, and savanna fires as 0.00603,
0.00527, and 0.00395 mol mol 1
, respectively. These ERs
are statistically significantly different from each other and
from the “normal” atmospheric CH4 to CO2 ratio and
generally agree with past ground and airborne studies.
Funding
We thank JAXA, NIES, and MOE for GOSAT data and their support as part of the Joint Research Agreement. R.P. and M.J.W are supported by the NERC National Centre for Earth Observation (NCEO). R.P. is also supported by the ESA Climate Change Initiative, and M.J.W by the EU Seventh Research Framework Programme (MACC-II project, contract 283576). We also thank BADC for providing ECMWF Operational Analyses data used in retrievals.
History
Citation
Geophysical Research Letters, 2013, 40 (15), pp. 4098-4102 (5)Author affiliation
/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Physics and AstronomyVersion
- VoR (Version of Record)
Published in
Geophysical Research LettersPublisher
American Geophysical Union (AGU), Wileyissn
0094-8276eissn
1944-8007Acceptance date
2013-07-10Available date
2016-12-12Publisher DOI
Publisher version
http://onlinelibrary.wiley.com/doi/10.1002/grl.50733/fullNotes
Supporting information available with version of record.Language
enAdministrator link
Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC