Tracking the emission and transport of pollution from wildfires using the IASI CO retrievals: analysis of the summer 2007 Greek fires

Turquety, Solène; Hurtmans, Daniel; Hadji‐Lazaro, Juliette; Coheur, Pierre‐François; Clerbaux, Cathy; Josset, Damien; Tsamalis, Christoforos

doi:10.5194/acp-9-4897-2009

Cited by 147 publications

(96 citation statements)

References 50 publications

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“…All of the 12 month running average time series of total column CO show clear features due to changes in fire emissions such as the broad peak around 2002-2003 for NH observations due to a significant number of boreal fires (e.g., Yurganov et al, 2005) and an overall decline in global fire emissions from 2007 to 2009 as shown in the GFED3 inventory (van der Werf et al, 2010). There may also be some correlation of lower CO column to lower emissions due to the global financial crisis starting in late 2008.…”

Section: Interannual Variabilitymentioning

confidence: 99%

“…Global direct emissions of CO are dominated by relatively stable anthropogenic emissions (∼500-600 Tg yr−1) and by biomass burning with significant interannual variability (∼300-600 Tg yr−1), (e.g., Granier et al, 2011, van der Werf et al, 2010. Satellite observations of CO can clearly identify areas of intense burning (e.g., Published by Copernicus Publications on behalf of the European Geosciences Union.…”

Section: Introductionmentioning

confidence: 99%

“…Satellite observations of CO can clearly identify areas of intense burning (e.g., Published by Copernicus Publications on behalf of the European Geosciences Union. Turquety et al, 2009), as well as urban areas (Clerbaux et al, 2008a). However, due to large chemical sources and sinks and large scale transport, CO concentrations in the atmosphere are not only driven by direct emissions.…”

Section: Introductionmentioning

confidence: 99%

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Decadal record of satellite carbon monoxide observations

et al. 2013

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Abstract. Atmospheric carbon monoxide (CO) distributions are controlled by anthropogenic emissions, biomass burning, transport and oxidation by reaction with the hydroxyl radical (OH). Quantifying trends in CO is therefore important for understanding changes related to all of these contributions. Here we present a comprehensive record of satellite observations from 2000 through 2011 of total column CO using the available measurements from nadir-viewing thermal infrared instruments: MOPITT, AIRS, TES and IASI. We examine trends for CO in the Northern and Southern Hemispheres along with regional trends for Eastern China, Eastern USA, Europe and India. We find that all the satellite observations are consistent with a modest decreasing trend ∼ −1 % yr −1 in total column CO over the Northern Hemisphere for this time period and a less significant, but still decreasing trend in the Southern Hemisphere. Although decreasing trends in the United States and Europe have been observed from surface CO measurements, we also find a decrease in CO over E. China that, to our knowledge, has not been reported previously. Some of the interannual variability in the observations can be explained by global fire emissions, but the overall decrease needs further study to understand the implications for changes in anthropogenic emissions.

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Section: Interannual Variabilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Decadal record of satellite carbon monoxide observations

et al. 2013

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“…A number of studies have been previously conducted using remote measurements of biomass burning emissions from ACE-FTS Coheur et al, 2007) as well as other space-borne instruments Glatthor et al, 2009;Torres et al, 2009;Turquety et al, 2009). Rinsland et al (2005) first explored the possibility of using ACE-FTS to study the emission of longer lived primary pyrogenic species and their long-range transport to establish the effectiveness of ACE-FTS in measuring the emission of trace species from biomass burning.…”

Section: K a Tereszchuk Et Al: Ace-fts Observations Of Pyrogenic Tmentioning

confidence: 99%

ACE-FTS observations of pyrogenic trace species in boreal biomass burning plumes during BORTAS

et al. 2013

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To further our understanding of the effects of biomass burning emissions on atmospheric composition, the BORTAS campaign (BOReal forest fires on Tropospheric oxidants over the Atlantic using Aircraft and Satellites) was conducted on 12 July to 3 August 2011 during the boreal forest fire season in Canada. The simultaneous aerial, ground and satellite measurement campaign sought to record instances of boreal biomass burning to measure the tropospheric volume mixing ratios (VMRs) of short- and long-lived trace molecular species from biomass burning emissions. The goal was to investigate the connection between the composition and the distribution of these pyrogenic outflows and their resulting perturbation to atmospheric chemistry, with particular focus on oxidant species to determine the overall impact on the oxidizing capacity of the free troposphere.

Measurements of pyrogenic trace species in boreal biomass burning plumes were made by the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) onboard the Canadian Space Agency (CSA) SCISAT-1 satellite during the BORTAS campaign. Even though biomass burning emissions are typically confined to the boundary layer, outflows are often injected into the upper troposphere by isolated convection and fire-related convective processes, thus allowing space-borne instruments to measure these pyrogenic outflows. An extensive set of 14 molecules – CH₃OH, C₂H₂, C₂H₆, C₃H₆O, CO, HCN, HCOOH, HNO₃, H₂CO, NO, NO₂, OCS, O₃, and PAN – have been analysed. Included in this analysis is the calculation of age-dependent sets of enhancement ratios for each of the species originating from fires in North America (Canada, Alaska) and Siberia for a period of up to 7 days. Ratio values for the shorter lived primary pyrogenic species decrease over time primarily due to oxidation by the OH radical as the plume ages and values for longer lived species such as HCN and C₂H₆ remain relatively unchanged. Increasing negative values are observed for the oxidant species, including O₃, indicating a destruction process in the plume as it ages such that concentrations of the oxidant species have dropped below their off-plume values.

Results from previous campaigns have indicated that values for the molar ratios of ΔO₃ /ΔO obtained from the measurements of the pyrogenic outflow from boreal fires are highly variable and range from negative to positive, irrespective of plume age. This variability has been attributed to pollution effects where the pyrogenic outflows have mixed with either local urban NO_x emissions or pyrogenic emissions from the long-range transport of older plumes, thus affecting the production of O₃ within the plumes. The results from this study have identified another potential cause of the variability in O₃ concentrations observed in the measurements of bi...

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“…The CO total columns have been validated for different locations and atmospheric conditions (e.g., De Wachter et al, 2012;Kerzenmacher et al, 2012), and the comparisons with other data have shown good overall agreement, even if some discrepancies were found within COenriched plumes (reaching 12 % over the Arctic in summer, see Pommier et al, 2010; and reaching 17 % in comparison with other IR sounders, see George et al, 2009). These data were also used previously to study biomass burning plumes (e.g., Turquety et al, 2009;Pommier et al, 2010;Krol et al, 2013;Whitburn et al, 2015).…”

Section: The Co Retrieval Characteristicsmentioning

confidence: 83%

Determination of enhancement ratios of HCOOH relative to CO in biomass burning plumes by the Infrared Atmospheric Sounding Interferometer (IASI)

2017

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Abstract. Formic acid (HCOOH) concentrations are often underestimated by models, and its chemistry is highly uncertain. HCOOH is, however, among the most abundant atmospheric volatile organic compounds, and it is potentially responsible for rain acidity in remote areas. HCOOH data from the Infrared Atmospheric Sounding Interferometer (IASI) are analyzed from 2008 to 2014 to estimate enhancement ratios from biomass burning emissions over seven regions. Fire-affected HCOOH and CO total columns are defined by combining total columns from IASI, geographic location of the fires from Moderate Resolution Imaging Spectroradiometer (MODIS), and the surface wind speed field from the European Centre for Medium-Range Weather Forecasts (ECMWF). Robust correlations are found between these fire-affected HCOOH and CO total columns over the selected biomass burning regions, allowing the calculation of enhancement ratios equal to 7.30 × 10 −3 ± 0.08 × 10 −3 mol mol −1 over Amazonia (AMA), 11.10 × 10 −3 ± 1.37 × 10 −3 mol mol −1 over Australia (AUS), 6.80 × 10 −3 ± 0.44 × 10 −3 mol mol −1 over India (IND), 5.80 × 10 −3 ± 0.15 × 10 −3 mol mol −1 over Southeast Asia (SEA), 4.00 × 10 −3 ± 0.19 × 10 −3 mol mol −1 over northern Africa (NAF), 5.00 × 10 −3 ± 0.13 × 10 −3 mol mol −1 over southern Africa (SAF), and 4.40 × 10 −3 ± 0.09 × 10 −3 mol mol −1 over Siberia (SIB), in a fair agreement with previous studies. In comparison with referenced emission ratios, it is also shown that the selected agricultural burning plumes captured by IASI over India and Southeast Asia correspond to recent plumes where the chemistry or the sink does not occur. An additional classification of the enhancement ratios by type of fuel burned is also provided, showing a diverse origin of the plumes sampled by IASI, especially over Amazonia and Siberia. The variability in the enhancement ratios by biome over the different regions show that the levels of HCOOH and CO do not only depend on the fuel types.

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Tracking the emission and transport of pollution from wildfires using the IASI CO retrievals: analysis of the summer 2007 Greek fires

Cited by 147 publications

References 50 publications

Decadal record of satellite carbon monoxide observations

Decadal record of satellite carbon monoxide observations

ACE-FTS observations of pyrogenic trace species in boreal biomass burning plumes during BORTAS

Determination of enhancement ratios of HCOOH relative to CO in biomass burning plumes by the Infrared Atmospheric Sounding Interferometer (IASI)

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