References

ACPD

Atmospheric Chemistry and Physics Discussions

ACPD

1680-7375

Copernicus GmbH

Göttingen, Germany

10.5194/acpd-11-1265-2011

Application of SCIAMACHY and MOPITT CO total column measurements to evaluate model results over biomass burning regions and Eastern China

Liu

¹ Beirle

¹ Butler

¹ Liu

² Hoor

¹ ⁶ Jöckel

¹ ⁷ Penning de Vries

¹ Pozzer

¹ ³ Frankenberg

⁴ Lawrence

M. G.

¹ Lelieveld

¹ ³ Platt

⁵ Wagner

Max-Planck-Institute for Chemistry, Mainz, Germany

Air Quality Research Division Environment Canada, Downsview, Ontario, Canada

Cyprus Institute, Nicosia, Cyprus

Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USA

Institute for Environmental Physics, University of Heidelberg, Germany

now at: Institute for Atmospheric Physics, University Mainz, Germany

now at: Institut für Physik der Atmosphäre, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Germany

17 01 2011

11 1 1265 1331

This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

This article is available from http://www.atmos-chem-phys-discuss.net/11/1265/2011/acpd-11-1265-2011.html

The full text article is available as a PDF file from http://www.atmos-chem-phys-discuss.net/11/1265/2011/acpd-11-1265-2011.pdf

We developed a new CO vertical column density product from near IR observations of the SCIAMACHY instrument onboard ENVISAT. For the correction of a temporally and spatially variable offset of the CO vertical column densities we apply a normalisation procedure based on coincident MOPITT (version 4) observations over the oceans. The resulting normalised SCIAMACHY CO data are well suited for the investigation of the CO distribution over continents, where important emission sources are located. We use only SCIAMACHY observations for effective cloud fractions below 20%. Since the remaining effects of clouds can still be large (up to 100%), we applied a cloud correction scheme which explicitly considers the cloud fraction, cloud top height and surface albedo of individual observations. We compared our new SCIAMACHY CO data set, and also observations from the MOPITT instrument, to the results from three global atmospheric chemistry models (MATCH, EMAC at low and high resolution, and GEOS-Chem); the focus of this comparison is on regions with strong CO emissions (from biomass burning or anthropogenic sources). The comparison indicates that over most of these regions the seasonal cycle is generally captured well but the simulated CO vertical column densities are systematically smaller than those from the satellite observations, in particular with respect to SCIAMACHY observations. Because of the high sensitivity of the SCIAMACHY observations to the lowest part of the atmosphere, this indicates that especially close to the surface the model simulations systematically underestimate the true atmospheric CO concentrations, probably caused by an underestimation of CO emissions by current emission inventories. For some biomass burning regions, however, such as Central Africa in July–August, model results are also found to be higher than the satellite observations.

References 1

Bey,~I., Jacob,~D J., Yantosca,~R M., Logan,~J A., Field,~B D., Fiore,~A M., Li,~Q B., Liu,~H G Y., Mickley,~L J., and Schultz,~M G.: Global modeling of tropospheric chemistry with assimilated meteorology: model description and evaluation, J Geophys. Res.-Atmos., 106, 23073–23095, 2001.

Bovensmann,~H., Burrows,~J P., Buchwitz,~M., Frerick,~J., Noel,~S., Rozanov,~V V., Chance,~K V., and Goede,~A P H.: SCIAMACHY: mission objectives and measurement modes, J. Atmos. Sci., 56, 127–150, 1999.

Buchwitz,~M., Rozanov,~V V., and Burrows,~J P.: A~near-infrared optimized DOAS method for the fast global retrieval of atmospheric CH4, CO, CO2, H2O, and N2O total column amounts from SCIAMACHY Envisat-1 nadir radiances, J Geophys. Res.-Atmos., 105, 15231–15245, 2000.

Buchwitz,~M., de Beek,~R., Bramstedt,~K., No\"el,~S., Bovensmann,~H., and Burrows,~J P.: Global carbon monoxide as retrieved from SCIAMACHY by WFM-DOAS, Atmos. Chem. Phys., 4, 1945–1960, doi:10.5194/acp-4-1945-2004, 2004.

Buchwitz,~M., de Beek,~R., No\"el,~S., Burrows,~J P., Bovensmann,~H., Bremer,~H., Bergamaschi,~P., Körner,~S., and Heimann,~M.: Carbon monoxide, methane and carbon dioxide columns retrieved from SCIAMACHY by WFM-DOAS: year 2003 initial data set, Atmos. Chem. Phys., 5, 3313–3329, doi:10.5194/acp-5-3313-2005, 2005.

Buchwitz,~M., de Beek,~R., No\"el,~S., Burrows,~J P., Bovensmann,~H., Schneising,~O., Khlystova,~I., Bruns,~M., Bremer,~H., Bergamaschi,~P., Körner,~S., and Heimann,~M.: Atmospheric carbon gases retrieved from SCIAMACHY by WFM-DOAS: version 0.5 CO and CH4 and impact of calibration improvements on CO2 retrieval, Atmos. Chem. Phys., 6, 2727–2751, doi:10.5194/acp-6-2727-2006, 2006a.

Buchwitz,~M., de Beek,~R., Noel,~S., Burrows,~J P., and Bovensmann,~H.: Carbon monoxide, methane and carbon dioxide over China retrieved from SCIAMACHY/ENVISAT by WFM-DOAS, ESA Sp. Publ., 611, 159–165 429, 2006b.

Buchwitz,~M., Khlystova,~I., Bovensmann,~H., and Burrows,~J P.: Three years of global carbon monoxide from SCIAMACHY: comparison with MOPITT and first results related to the detection of enhanced CO over cities, Atmos. Chem. Phys., 7, 2399–2411, doi:10.5194/acp-7-2399-2007, 2007.

Burrows,~J P., Holzle,~E., Goede,~A P H., Visser,~H., and Fricke,~W.: Sciamachy-scanning imaging absorption spectrometer for atmospheric chartography, Acta Astronaut., 35, 445–451, 1995.

Cicerone,~R J.: How has the atmospheric concentration of CO changed, in: The Changing Atmosphere, edited by: Rowland,~F S. and Isaksen,~I S A., Wiley, New York, 1988.

Crutzen~P J. and Gidel,~L T.: A~two-dimensional photochemical model of the atmosphere. 2: The tropospheric budgets of anthropogenic chlorocarbons CO, CH4, CH3Cl and the effect of various \chemNO_x sources on tropospheric ozone, J. Geophys. Res., 88, 6641–6661, 1983.

de Laat,~A T J., Gloudemans,~A M S., Schrijver,~H., van den Broek,~M M P., Meirink,~J F., Aben,~I., and Krol,~M.: Quantitative analysis of SCIAMACHY carbon monoxide total column measurements, Geophys. Res. Lett., 33, L07807, doi:10.1029/2005gl025530, 2006.

de Laat,~A T J., Gloudemans,~A M S., Aben,~I., Krol,~M., Meirink,~J F., van der Werf,~G R., and Schrijver,~H.: Scanning Imaging Absorption Spectrometer for Atmospheric Chartography carbon monoxide total columns: statistical evaluation and comparison with chemistry transport model results, J. Geophys. Res.-Atmos., 112, D21306, doi:10.1029/2007jd009378, 2007.

de Laat,~A T J., Gloudemans,~A M S., Aben,~I., and Schrijver,~H.: Global evaluation of SCIAMACHY and MOPITT carbon monoxide column differences for 2004–2005, J. Geophys. Res.-Atmos., 115, D06307, doi:10.1029/2009jd012698, 2010.

Deeter,~M N., Emmons,~L K., Francis,~G L., Edwards,~D P., Gille,~J C., Warner,~J X., Khattatov,~B., Ziskin,~D., Lamarque,~J F., Ho,~S P., Yudin,~V., Attie,~J L., Packman,~D., Chen,~J., Mao,~D., and Drummond,~J R.: Operational carbon monoxide retrieval algorithm and selected results for the MOPITT instrument, J. Geophys. Res.-Atmos., 108, 4399, doi:10.1029/2002jd003186, 2003.

Drummond,~J R. and Mand,~G S.: The measurements of pollution in the troposphere (MOPITT) instrument: overall performance and calibration requirements, J. Atmos. Ocean. Tech., 13, 314–320, 1996.

Emmons, L. K., Deeter, M. N., Gille, J. C., Edwards, D. P., Attie, J. L., Warner, J., Ziskin, D., Francis, G., Khattatov, B., Yudin, V., Lamarque, J. F., Ho, S. P., Mao, D., Chen, J. S., Drummond, J., Novelli, P., Sachse, G., Coffey, M. T., Hannigan, J. W., Gerbig, C., Kawakami, S., Kondo, Y., Takegawa, N., Schlager, H., Baehr, J., and Ziereis, H.: Validation of Measurements of Pollution in the Troposphere (MOPITT) CO retrievals with aircraft in situ profiles, J. Geophys. Res.-Atmos., 109, D03309, doi 10.1029/2003jd004101, 2004. 2)In page 36 line 16, the old reference is change to: J�ckel, P., Kerkweg, A., Pozzer, A., Sander, R., Tost, H., Riede, H., Baumg�rtner, A., Gromov, S., and Kern, B.: Validation of Measurements of Pollution in the Troposphere (MOPITT) CO retrievals with aircraft in situ profiles, J. Geophys. Res., 109(D3), D03309, doi:10.1029/2003JD004101, 2004.

Eskes,~H J. and Boersma,~K F.: Averaging kernels for DOAS total-column satellite retrievals, Atmos. Chem. Phys., 3, 1285–1291, doi:10.5194/acp-3-1285-2003, 2003.

Frankenberg,~C., Platt,~U., and Wagner,~T.: Iterative maximum a~posteriori (IMAP)-DOAS for retrieval of strongly absorbing trace gases: Model studies for CH4 and CO2 retrieval from near infrared spectra of SCIAMACHY onboard ENVISAT, Atmos. Chem. Phys., 5, 9–22, doi:10.5194/acp-5-9-2005, 2005a.

Frankenberg,~C., Platt,~U., and Wagner,~T.: Retrieval of CO from SCIAMACHY onboard ENVISAT: detection of strongly polluted areas and seasonal patterns in global CO abundances, Atmos. Chem. Phys., 5, 1639–1644, doi:10.5194/acp-5-1639-2005, 2005b.

Galanter,~M., Levy,~H., and Carmichael,~G R.: Impacts of biomass burning on tropospheric CO, NOx, and \chemO_3, J. Geophys. Res.-Atmos., 105, 6633–6653, 2000.

Gloudemans,~A., Schrijver,~H., Straume,~A., Aben,~I., Maurellis,~A., Buchwitz,~M., de Beek,~R., Frankenberg,~C., and Wagner,~T.: CH4 and CO total columns from SCIAMACHY: comparisons with TM3 and MOPITT, in: Remote Sensing of Clouds and the Atmosphere VIII, vol. 5235 of Proceedings ACVE2, 3–7 May, Frascati, Italy, 2004.

Gloudemans,~A M S., Schrijver,~H., Kleipool,~Q., van den Broek,~M M P., Straume,~A G., Lichtenberg,~G., van Hees,~R M., Aben,~I., and Meirink,~J F.: The impact of SCIAMACHY near-infrared instrument calibration on CH4 and CO total columns, Atmos. Chem. Phys., 5, 2369–2383, doi:10.5194/acp-5-2369-2005, 2005.

Gloudemans,~A M S., Krol,~M C., Meirink,~J F., de Laat,~A T J., van der Werf,~G R., Schrijver,~H., van den Broek,~M M P., and Aben,~I.: Evidence for long-range transport of carbon monoxide in the Southern Hemisphere from SCIAMACHY observations, Geophys. Res. Lett., 33, L16807, doi:10.1029/2006gl026804, 2006.

Gloudemans,~A M S., Schrijver,~H., Hasekamp,~O P., and Aben,~I.: Error analysis for CO and CH4 total column retrievals from SCIAMACHY 2.3 μm spectra, Atmos. Chem. Phys., 8, 3999–4017, doi:10.5194/acp-8-3999-2008, 2008.

Gloudemans,~A M S., de Laat,~A T J., Schrijver,~H., Aben,~I., Meirink,~J F., and van der Werf,~G R.: SCIAMACHY CO over land and oceans: 2003–2007 interannual variability, Atmos. Chem. Phys., 9, 3799–3813, doi:10.5194/acp-9-3799-2009, 2009.

Granier,~C., Petron,~G., Muller,~J F., and Brasseur,~G.: The impact of natural and anthropogenic hydrocarbons on the tropospheric budget of carbon monoxide, Atmos. Environ., 34, 5255–5270, 2000.

Guenther,~A., Karl,~T., Harley,~P., Wiedinmyer,~C., Palmer,~P I., and Geron,~C.: Estimates of global terrestrial isoprene emissions using MEGAN (Model of Emissions of Gases and Aerosols from Nature), Atmos. Chem. Phys., 6, 3181–3210, doi:10.5194/acp-6-3181-2006, 2006.

Hack,~J J.: Parameterization of moist convection in the National Center for Atmospheric Research Community Climate Model (CCM2), J Geophys. Res., 99, 5551–5568, 1994.

Holloway,~T., Levy,~H., and Kasibhatla,~P.: Global distribution of carbon monoxide, J. Geophys. Res.-Atmos., 105, 12123–12147, 2000.

Jöckel,~P., Sander,~R., Kerkweg,~A., Tost,~H., and Lelieveld,~J.: Technical Note: The Modular Earth Submodel System (MESSy) – a~new approach towards Earth System Modeling, Atmos. Chem. Phys., 5, 433–444, doi:10.5194/acp-5-433-2005, 2005.

Jöckel,~P., Tost,~H., Pozzer,~A., Brühl,~C., Buchholz,~J., Ganzeveld,~L., Hoor,~P., Kerkweg,~A., Lawrence,~M G., Sander,~R., Steil,~B., Stiller,~G., Tanarhte,~M., Taraborrelli,~D., van Aardenne,~J., and Lelieveld,~J.: The atmospheric chemistry general circulation model ECHAM5/MESSy1: consistent simulation of ozone from the surface to the mesosphere, Atmos. Chem. Phys., 6, 5067–5104, doi:10.5194/acp-6-5067-2006, 2006.

Jöckel,~P., Kerkweg,~A., Pozzer,~A., Sander,~R., Tost,~H., Riede,~H., Baumgaertner,~A., Gromov,~S., and Kern,~B.: Development cycle 2 of the Modular Earth Submodel System (MESSy2), Geosci. Model Dev., 3, 717–752, doi:10.5194/gmd-3-717-2010, 2010.

Justice,~C O., Vermote,~E., Townshend,~J R G., Defries,~R., Roy,~D P., Hall,~D K., Salomonson,~V V., Privette,~J L., Riggs,~G., Strahler,~A., Lucht,~W., Myneni,~R B., Knyazikhin,~Y., Running,~S W., Nemani,~R R., Wan,~Z M., Huete,~A R., van Leeuwen,~W., Wolfe,~R E., Giglio,~L., Muller,~J P., Lewis,~P., and Barnsley,~M J.: The Moderate Resolution Imaging Spectroradiometer (MODIS): land remote sensing for global change research, IEEE T. Geosci. Remote, 36, 1228–1249, 1998.

Kalnay,~E., Kanamitsu,~M., and Baker,~W E.: Global numerical weather prediction at the National-Meteorological-Center, B. Am. Meteorol. Soc., 71, 1410–1428, 1990.

Kerkweg,~A., Sander,~R., Tost,~H., and Jöckel,~P.: Technical note: Implementation of prescribed (OFFLEM), calculated (ONLEM), and pseudo-emissions (TNUDGE) of chemical species in the Modular Earth Submodel System (MESSy), Atmos. Chem. Phys., 6, 3603–3609, doi:10.5194/acp-6-3603-2006, 2006a.

Kerkweg,~A., Buchholz,~J., Ganzeveld,~L., Pozzer,~A., Tost,~H., and Jöckel,~P.: Technical Note: An implementation of the dry removal processes DRY DEPosition and SEDImentation in the Modular Earth Submodel System (MESSy), Atmos. Chem. Phys., 6, 4617–4632, doi:10.5194/acp-6-4617-2006, 2006b.

Koelemeijer,~R B A., Stammes,~P., Hovenier,~J W., and de Haan,~J F.: A~fast method for retrieval of cloud parameters using oxygen A~band measurements from the Global Ozone Monitoring Experiment, J Geophys. Res., 106, 3475–3490, 2001.

Kopacz,~M., Jacob,~D J., Fisher,~J A., Logan,~J A., Zhang,~L., Megretskaia,~I A., Yantosca,~R M., Singh,~K., Henze,~D K., Burrows,~J P., Buchwitz,~M., Khlystova,~I., McMillan,~W W., Gille,~J C., Edwards,~D P., Eldering,~A., Thouret,~V., and Nedelec,~P.: Global estimates of CO sources with high resolution by adjoint inversion of multiple satellite datasets (MOPITT, AIRS, SCIAMACHY, TES), Atmos. Chem. Phys., 10, 855–876, doi:10.5194/acp-10-855-2010, 2010.

Krijger,~J M., van Weele,~M., Aben,~I., and Frey,~R.: Technical Note: The effect of sensor resolution on the number of cloud-free observations from space, Atmos. Chem. Phys., 7, 2881–2891, doi:10.5194/acp-7-2881-2007, 2007.

Lawrence,~M G., Crutzen,~P J., Rasch,~P J., Eaton,~B E., and Mahowald,~N M.: A~model for studies of tropospheric photochemistry: description, global distributions, and evaluation, J. Geophys. Res.-Atmos., 104, 26245–26277, 1999.

Lawrence,~M G., Rasch,~P J., von Kuhlmann,~R., Williams,~J., Fischer,~H., de Reus,~M., Lelieveld,~J., Crutzen,~P J., Schultz,~M., Stier,~P., Huntrieser,~H., Heland,~J., Stohl,~A., Forster,~C., Elbern,~H., Jakobs,~H., and Dickerson,~R R.: Global chemical weather forecasts for field campaign planning: predictions and observations of large-scale features during MINOS, CONTRACE, and INDOEX, Atmos. Chem. Phys., 3, 267–289, doi:10.5194/acp-3-267-2003, 2003.

Lelieveld,~J., Crutzen,~P J., Andreae,~M O., Brenninkmeijer,~C A M., Campos,~T., Cass,~G R., Dickerson,~R R., Fischer,~H., de Gouw,~J A., Hansel,~A., Jefferson,~A., Kley,~D., de Laat,~A T J., Lal,~S., Lawrence,~M G., Lobert,~J M., Mayol-Bracero,~O., Mitra,~A P., Novakov,~T., Oltmans,~S J., Prather,~K A., Ramanathan,~V., Reiner,~T., Rodhe,~H., Scheeren,~H A., Sikka,~D., and Williams,~J.: The Indian Ocean Experiment: Widespread air pollution from South and South-East Asia, Science, 291, 1031–1036, 2001.

Liu,~C.: Evaluating the CO distributions from current atmospheric chemistry models using satellite observations from MOPITT and SCIAMACHY, PhD-thesis, University of Heidelberg, 2010.

Liu,~J., Drummond,~J R., Li,~Q., Gille,~J C., and Ziskin,~D C.: Satellite mapping of CO emission from forest fires in Northwest America using MOPITT measurements, Remote Sens. Environ., 95, 502–516, 2005.

Logan,~J A., Prather,~M J., Wofsy,~S C., and Mcelroy,~M B.: Tropospheric chemistry – a~global perspective, J. Geophys. Res.-Ocean Atmos., 86, 7210–7254, 1981.

Nakajima,~T. and King,~M D.: Determination of the optical-thickness and effective particle radius of clouds from reflected solar-radiation measurements. 1 Theory, J. Atmos. Sci., 47, 1878–1893, 1990.

Nordeng,~T E.: Extended versions of the convective parametrization scheme at ECMWF and their impact on the mean and transient activity of the model in the tropics, Tech. Rep., ECWMF, 1994.

Olivier,~J G J. and Berdowski,~J J M.: Global emissions sources and sinks, in: The Climate System, edited by: Berdowski,~J., Guicherit,~R., and Heij,~B J., A A Balkema Publishers/Swets and Zeitlinger Publishers, Lisse, The Netherlands, 33–78, 2001.

Platt,~U. and Stutz,~J.: Differential Optical Absorption Spectroscopy, Principles and Applications, Springer, Berlin Heidelberg, 2008.

Pozzer,~A., Jöckel,~P., Tost,~H., Sander,~R., Ganzeveld,~L., Kerkweg,~A., and Lelieveld,~J.: Simulating organic species with the global atmospheric chemistry general circulation model ECHAM5/MESSy1: a comparison of model results with observations, Atmos. Chem. Phys., 7, 2527–2550, doi:10.5194/acp-7-2527-2007, 2007.

Rasch,~P J., Mahowald,~N M., and Eaton,~B E.: Representations of transport, convection, and the hydrologic cycle in chemical transport models: implications for the modeling of short-lived and soluble species, J. Geophys. Res.-Atmos., 102, 28127–28138, 1997.

Rodgers,~C D.: Retrieval of atmospheric-temperature and composition from remote measurements of thermal-radiation, Rev. Geophys., 14, 609–624, 1976.

Roeckner,~E., Brokopf,~R., Esch,~M., Giorgetta,~M., Hagemann,~S., Kornblueh,~L., Manzini,~E., Schlese,~R., and Schulzweida,~U.: Sensitivity of simulated climate to horizontal and vertical resolution in the ECHAM5 atmosphere model, J Climate, 19, 3771–3791, 2006.

Sander,~R., Kerkweg,~A., Jöckel,~P., and Lelieveld,~J.: Technical note: The new comprehensive atmospheric chemistry module MECCA, Atmos. Chem. Phys., 5, 445–450, doi:10.5194/acp-5-445-2005, 2005.

Schrijver,~H.: Retrieval of carbon monoxide, methane and nitrous oxide from SCIAMACHY measurements, in: ESA WPP-161 1, vol. 5235, Proc. ESAMS, European Symposium on Atmospheric Measurements from Space, 285–294, Estec, Nordwijk, The Netherlands, 2004.

Shindell,~D T., Faluvegi,~G., Stevenson,~D S., Krol,~M C., Emmons,~L K., Lamarque,~J F., Petron,~G., Dentener,~F J., Ellingsen,~K., Schultz,~M G., Wild,~O., Amann,~M., Atherton,~C S., Bergmann,~D J., Bey,~I., Butler,~T., Cofala,~J., Collins,~W J., Derwent,~R G., Doherty,~R M., Drevet,~J., Eskes,~H J., Fiore,~A M., Gauss,~M., Hauglustaine,~D A., Horowitz,~L W., Isaksen,~I S A., Lawrence,~M G., Montanaro,~V., Muller,~J F., Pitari,~G., Prather,~M J., Pyle,~J A., Rast,~S., Rodriguez,~J M., Sanderson,~M G., Savage,~N H., Strahan,~S E., Sudo,~K., Szopa,~S., Unger,~N., van Noije,~T P C., and Zeng,~G.: Multimodel simulations of carbon monoxide: comparison with observations and projected near-future changes, J. Geophys. Res.-Atmos., 111, D19306, doi:10.1029/2006jd007100, 2006.

Solomon,~S., Schmeltekopf,~A L., and Sanders,~R W.: On the interpretation of zenith sky absorption measurements, J Geophys. Res., 92, 8311–8319, 1987.

Straume,~A G., Schrijver,~H., Gloudemans,~A M S., Houweling,~S., Aben,~I., Maurellis,~A N., de Laat,~A T J., Kleipool,~Q., Lichtenberg,~G., van Hees,~R., Meirink,~J F., and Krol,~M.: The global variation of CH4 and CO as seen by SCIAMACHY, Adv. Space Res., 36, 821–827, doi:10.1016/j.asr.2005.03.027, 2005.

Tiedtke,~M.: A~comprehensive mass flux scheme for cumulus parametrization in large-scale models, Mon. Weather Rev., 117, 1779–1800, 1989.

Tost,~H., Jöckel,~P., Kerkweg,~A., Sander,~R., and Lelieveld,~J.: Technical note: A~new comprehensive SCAVenging submodel for global atmospheric chemistry modelling, Atmos. Chem. Phys., 6, 565–574, doi:10.5194/acp-6-565-2006, 2006.

Turquety,~S., Clerbaux,~C., Law,~K., Coheur,~P.-F., Cozic,~A., Szopa,~S., Hauglustaine,~D A., Hadji-Lazaro,~J., Gloudemans,~A M S., Schrijver,~H., Boone,~C D., Bernath,~P F., and Edwards,~D P.: CO emission and export from Asia: an analysis combining complementary satellite measurements (MOPITT, SCIAMACHY and ACE-FTS) with global modeling, Atmos. Chem. Phys., 8, 5187–5204, doi:10.5194/acp-8-5187-2008, 2008.

van der Werf,~G R., Randerson,~J T., Giglio,~L., Collatz,~G J., Kasibhatla,~P S., and Arellano Jr.,~A F.: Interannual variability in global biomass burning emissions from 1997 to 2004, Atmos. Chem. Phys., 6, 3423–3441, doi:10.5194/acp-6-3423-2006, 2006.

von Kuhlmann,~R., Lawrence,~M G., Crutzen,~P J., and Rasch,~P J.: A~model for studies of tropospheric ozone and nonmethane hydrocarbons: model description and ozone results, J. Geophys. Res.-Atmos., 108, 4294, doi:10.1029/2002jd002893, 2003.

Wang,~P., Stammes,~P., van der A,~R., Pinardi,~G., and van Roozendael,~M.: FRESCO+: an improved O2 A-band cloud retrieval algorithm for tropospheric trace gas retrievals, Atmos. Chem. Phys., 8, 6565–6576, doi:10.5194/acp-8-6565-2008, 2008.

Yevich,~R. and Logan,~J A.: An assessment of biofuel use and burning of agricultural waste in the developing world, Global Biogeochem. Cy., 17, 1, 1095, doi:10.1029/2002GB001952, 2003.

Zhang,~G J. and McFarlane,~N A.: Sensitivity of climate simulations to the parameterization of cumulus convection in the Canadian climate centre general circulation model, Atmos. Ocean, 33, 407–446, 1995.