References

ACP

Atmospheric Chemistry and Physics

ACP

1680-7324

Copernicus GmbH

Göttingen, Germany

10.5194/acp-7-3713-2007

Model study of the cross-tropopause transport of biomass burning pollution

Duncan

B. N.

¹ Strahan

S. E.

¹ Yoshida

¹ Steenrod

S. D.

¹ Livesey

Goddard Earth Sciences and Technology Center, University of Maryland, Baltimore County, Baltimore, Maryland, USA & The Atmospheric Chemistry and Dynamics Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USA

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

17 07 2007

7 14 3713 3736

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We present a modeling study of the troposphere-to-stratosphere transport (TST) of pollution from major biomass burning regions to the tropical upper troposphere and lower stratosphere (UT/LS). TST occurs predominately through 1) slow ascent in the tropical tropopause layer (TTL) to the LS and 2) quasi-horizontal exchange to the lowermost stratosphere (LMS). We show that biomass burning pollution regularly and significantly impacts the composition of the TTL, LS, and LMS. Carbon monoxide (CO) in the LS in our simulation and data from the Aura Microwave Limb Sounder (MLS) shows an annual oscillation in its composition that results from the interaction of an annual oscillation in slow ascent from the TTL to the LS and seasonal variations in sources, including a semi-annual oscillation in CO from biomass burning. The impacts of CO sources that peak when ascent is seasonally low are damped (e.g. Southern Hemisphere biomass burning) and vice-versa for sources that peak when ascent is seasonally high (e.g. extra-tropical fossil fuels). Interannual variation of CO in the UT/LS is caused primarily by year-to-year variations in biomass burning and the locations of deep convection. During our study period, 1994–1998, we find that the highest concentrations of CO in the UT/LS occurred during the strong 1997–1998 El Niño event for two reasons: i. tropical deep convection shifted to the eastern Pacific Ocean, closer to South American and African CO sources, and ii. emissions from Indonesian biomass burning were higher. This extreme event can be seen as an upper bound on the impact of biomass burning pollution on the UT/LS. We estimate that the 1997 Indonesian wildfires increased CO in the entire TTL and tropical LS (>60 mb) by more than 40% and 10%, respectively, for several months. Zonal mean ozone increased and the hydroxyl radical decreased by as much as 20%, increasing the lifetimes and, subsequently TST, of trace gases. Our results indicate that the impact of biomass burning pollution on the UT/LS is likely greatest during an El Niño event due to favorable dynamics and historically higher burning rates.

References 1

Adler, R. F., Huffman, G. J., Chang, A., Ferraro, R., Xie, P., Janowiak, J., Rudolf, B., Schneider, U., Curtis, S., Bolvin, D., Gruber, A., Susskind, J., and Arkin, P.: The Version 2 Global Precipitation Climatology Project (GPCP) Monthly Precipitation Analysis (1979–Present), J. Hydrometeor., 4(6), 1147–1167, 2003.

Andreae, M. and Merlet, P.: Emission of trace gases and aerosols from biomass burning, Global Biogeochemical Cycles, 15, 955–966, 2001.

Baughcum, S. L., Tritz, T. G., Hernerdon, S. C., and Pickett, D. C.: Scheduled civil aircraft emission inventories for 1992: database development and analysis, NASA CR-4700, Natl. Aeronaut and Space Admin., Washington, D.C., 1996.

Benkovitz, C. M., Scholtz, M. T., Pacyna, J., Tarrason, L., Dignon, J., Voldner, E. C., Spiro, P. A., Logan, J. A., and Graedel, T. E.: Global gridded inventories of anthropogenic emissions of sulfur and nitrogen, J. Geophys. Res., 101(29), 239-29, 253, 1996.

Bey, I., Jacob, D. J., Yantosca, R. M., Logan, J. A., Field, B. D., Fiore, A. M., Li, Q., Liu, H., Mickley, L. J., and Schultz, M.: Global modeling of tropospheric chemistry with assimilated meteorology: Model description and evaluation, J. Geophys. Res., 106(23), 073-23, 095, 2001.

Bian, H. and Prather, M. J.: Fast-J2: Accurate Simulation of stratospheric photolysis in global chemical models, J. Atmos. Chem., 41, 281–296, 2002.

Bloom, S., da Silva, A., Dee, D., Bosilovich, M., Chern, J.-D., Pawson, S., Schubert, S., Sienkiewicz, M., Stajner, I., Tan, W.-W., and Wu, M.-L.: Documentation and validation of the Goddard Earth Observing System (GEOS) Data Assimilation System – Version 4, Technical Report Series on Global Modeling and Data Assimilation 104606, 2005.

Chatfield, R. B., Vastano, J. A., Li, L., Sachse, G. W., and Connors, V. S.: The Great African plume from biomass burning: Generalizations from a three-dimensional study of TRACE A carbon monoxide, J. Geophys. Res. 103(28), 059–77, 1998.

Chatfield, R. B., Guo, Z., Sachse, G. W., Blake, D. R., and Blake, N. J.: The subtropical global plume in the Pacific Exploratory Mission-Tropics A (PEM-Tropics A), PEM-Tropics B, and the Global Atmospheric Sampling Program (GASP): How tropical emissions affect the remote Pacific, J. Geophys. Res., 107(D16), 4278, doi:10.1029/2001JD000497, 2002.

Chen, P.: Isentropic cross-tropopause mass exchange in the extratropics, J. Geophys. Res., 100, 16 661–16 674, 1995.

Chin, M., Ginoux, P., Kinne, S., Torres, O., Holben, B., Duncan, B., Martin, R., Logan, J., Higurashi, A., and Nakajima, T.: Tropospheric aerosol optical thickness from the GOCART model and comparisons with satellite and sunphotometer measurements, J. Atmos. Sci., 59, 461–483, 2002.

Considine, D. B., Douglass, A. R., Connell, P. S., Kinnison, D. E., and Rotman, D. A.: A polar stratospheric cloud parameterization for the three-dimensional model of the global modeling initiative and its response to stratospheric aircraft, J. Geophys. Res., 105, 3955–3975, 2000.

Dai, A. and Wigley, T. M. L.: Global patterns of ENSO-induced precipitation, Geophys. Res. Lett., 27, 1283–1286, 2000.

Dessler, A. E.: A reexamination of the "stratospheric fountain" hypothesis, Geophys. Res. Lett., 25(22), 4165–4168, 1998.

Dethof, A., O'Neill, A., Slingo, J. M., and Smit H. G. J.: A mechanism for moistening the lower stratosphere involving the Asian summer monsoon, Q. J. R. Meteor. Soc., 125, 1079–1106, Part B., 1999.

Douglass, A. R., Schoeberl, M. R., Rood, R. B., and Pawson, S.: Evaluation of transport in the lower tropical stratosphere in a global chemistry and transport model, J. Geophys. Res., 108(D9), 4259, doi:10.1029/2002JD002696, 2003.

Douglass, A. R., Stolarski, R. S., Strahan, S. E., and Connell, P. S.: Radicals and reservoirs in the GMI chemistry and transport model: Comparison to measurements, J. Geophys. Res., 109, D16302, doi:10.1029/2004JD004632, 2004.

Dlugokencky , E. J., Masarie, K. A., Lang, P. M., and Tans, P. P.: Continuing decline in the growth rate of the atmospheric methane burden, Nature, 393, 447–450, 1998.

Duncan, B. N., Martin, R., Staudt, A., Yevich, R., and Logan, J.: Interannual and Seasonal Variability of Biomass Burning Emissions Constrained by Satellite Observations, J. Geophys. Res., 108(D2), 4100, doi:10.1029/2002JD002378, 2003a.

Duncan, B. N., Bey, I., Chin, M., Mickley, L. J., Fairlie, T. D., Martin, R. V., and Matsueda, H.: Indonesian Wildfires of 1997: Impact on Tropospheric Chemistry, J. Geophys. Res., 108(D15), 4458, doi:10.1029/2002JD003195, 2003b.

Dunlea, E. J. and Ravishankara, A. R.: Kinetic studies of the reactions of O(1D) with several atmospheric molecules, Phys. Chem. Chem. Phys., 6, 2152, doi:10.1039/b400247d, 2004.

Dunkerton, T. J.: Evidence of meridional motion in the summer lower stratosphere adjacent to monsoon regions, J. Geophys. Res., 100, 16 675–16 688, 1995.

Evans, M. J and Jacob, D. J.: Impact of new laboratory studies of N2O$_5$ hydrolysis on global model budgets of tropospheric nitrogen oxides, ozone, and OH, Geophys. Res. Lett., 32, L09813, doi:10.1029/2005GL022469, 2005.

Filipiak, M., Harwood, R., Jiang, J., et al.: Carbon monoxide measured by the EOS Microwave Limb Sounder on Aura: First results, Geophys. Res. Lett., 32, L14825, doi:10.1029/2005GL022765, 2005.

Fishman, J., Fakruzzaman, F., Cros, B., and Nganga, D.: Identification of widespread pollution in the Southern Hemisphere deduced from satellite analyses, Science, 252, 1693–1696, 1991.

Folkins, I., Chatfield, R., Baumgardner, D., and Proffitt, M.: Biomass burning and deep convection in southeastern Asia: Results from ASHOE/MAESA, J. Geophys. Res., 102, 13 291–13 299, 1997.

Folkins, I., Loewenstein, M., Podolske, J., Oltmans, S. J., and Proffitt, M.: A barrier to vertical mixing at 14 km in the tropics: Evidence from ozonesondes and aircraft measurements, J. Geophys. Res., 104, 22 095–22 102, 1999.

Folkins, I., Bernath, P., Boone, C., Lesins, G., Livesay, N., Thompson, A. M., Walker, K., and Witte, J. C.: The seasonal cycles of O3, CO, and convective outflow at the tropical tropopause, Geophys. Res. Lett., 33, L16802, doi:10.1029/2006GL026602, 2006.

Fromm, M., Bevilacqua, R., Servranckx, R., Rosen, J., Thayer, J., Herman, J., and Larko, D.: Pyro-cumulonimbus injection of smoke to the stratosphere: Observations and impact of a super blowup in northwestern Canada on 3–4 August 1998, J. Geophys. Res., 110, D08205, doi:10.1029/2004JD005350, 2005.

Fueglistaler, S., Wernli, H., and Peter, T.: Tropical troposphere-to-stratosphere transport inferred from trajectory calculations, J. Geophys. Res., 109, D03108, doi:10.1029/2003JD004069, 2004.

Fu, R., Hu, Y., Wright, J. S., Jiang, J. H., Dickinson, R. E., Chen, M., Filipiak, M., Read, W. G., Waters, J. W., and Wu, D. L.: Short-circuit of water vapor and polluted air to the global stratosphere by convective transport over the Tibetan Plateau, PNAS, doi:10.1073/pnas.0601584103, 2006.

Gettelman, A., de F. Forster, P. M., Fujiwara, M., Fu, Q., Vömel, H., Gohar, L. K., Johanson, C., and Ammerman, M.: Radiation balance of the tropical tropopause layer, J. Geophys. Res., 109, D07103, doi:10.1029/2003JD004190, 2004.

Guenther, A., Hewitt, C. N., Erickson, D., et al.: A global model of natural volatile organic compound emissions, J. Geophys. Res., 100, 8873–8892, 1995.

Hack, J. J.: Parameterization of moist convection in the NCAR Community Climate Model, CCM2, J. Geophys. Res., 99, 5551–5568, 1994.

Hatsushika, H. and Yamazaki, K.: Stratospheric drain over Indonesia and dehydration within the tropical tropopause layer diagnosed by air parcel trajectories, J. Geophys. Res., 108 (D19), 4610, doi:10.1029/2002JD002986, 2003.

Haynes, P. H. and Shuckburgh, E.: Effective diffusivity as a diagnostic of atmospheric transport. 2. Troposphere and lower stratosphere, J. Geophys. Res., 105(D18), 22 795–22 810, 2000.

Holton, J. R., Haynes, P. H., McIntyre, M. E., Douglass, A. R., Rood, R. B., and Pfister, L.: Stratosphere-Troposphere Exchange, Reviews of Geophysics, 33, 403–439, 1995.

Jacobson, M. Z.: Computation of global photochemistry with SMVGEAR II, Atmos. Environ., 29, 2541–2546, 1995.

Jacob, D. and Bakwin, P.: Cycling of NOx in tropical forest canopies and its implications for the global source of biogenic NOx to the atmosphere, in Microbial Production and Consumption of Greenhouse Gases, Ed. W.B. Whitman, American Society of Microbiology, Washingoton, D.C., 1991.

Jacob, D. J., Field, B. D., Jin, E., Bey, I., Li, Q. B., Logan, J. A., and Yantosca, R. M.: Atmospheric budget of acetone, J. Geophys. Res., 107(D10), 4100, doi:10.1029/2001JD000694, 2002.

Jacob, D.J., Crawford, J. H., Kleb, M. M., et al.: Transport and chemical evolution over the Pacific (TRACE-P) aircraft mission: Design, execution, and first results, J. Geophys. Res., 108(D20), 9000, doi:10.1029/2002JD003276, 2003.

Jost, H.-J., Drdla, K., Stohl, A., et al.: In-situ observations of mid-latitude forest fire plumes deep in the stratosphere, Geophys. Res. Lett., 31, L11101, doi:10.1029/2003GL019253, 2004.

Kar, J., Bremer, H., Drummond, J. R., et al.: Evidence of vertical transport of carbon monoxide from Measurements of Pollution in the Troposphere (MOPITT), Geophys. Res. Lett., L23105, doi:10.1029/2004GL021128, 2004.

Kinnison, D. E., Connell, P. S., Rodriguez, J. M., Rotman, D. A., Considine, D. B., Tannahil, J., Ramaroson, R., Rasch, P. J., Douglass, A. R., Baughcum, S. L., Coy, L., Waugh, D. W., Kawa, S. R., and Prather, M. J.: The Global Modeling Initiative Assessment Model: Application to High-Speed Civil Transport Perturbation, J. Geophys. Res., 106, 1693–1712, 2001.

Levine, J. G., Braesicke, P., Harris, N. R. P., Savage, N. H., and Pyle, J. A.: Pathways and timescales for troposphere-to-stratosphere transport via the tropical tropopause layer and their relevance for very short lived substances, J. Geophys. Res., 112, D04308, doi:10.1029/2005JD006940, 2007.

Li, Q., Jiang, J. H., Wu, D. L., et al: Convective outflow of South Asian pollution: A global CTM simulation compared with EOS MLS observations, Geophys. Res. Lett., L14826, doi:10.1029/2005GL022762, 2005.

Lin, S.-J. and Rood, R. B.: Multidimensional flux-form semiLagrangian transport schemes, Mon. Weather Rev., 124, 2046–2070, 1996.

Liu, H., Jacob, D. J., Bey, I., and Yantosca, R. M.: Constraints from $^210$ Pb and $^7$ Be on wet deposition and transport in a global three-dimensional chemical tracer model driven by assimilated meteorological fields, J. Geophys. Res., 106, 12 109–12 128, 2001.

Liu, C. and Zipser, E. J.: Global distribution of convection penetrating the tropical tropopause, J. Geophys. Res., 110, 2005JD006063, 2005.

Livesey, N. J., Fromm, M. D., Waters, J. W., Manney, G. L., Santee, M. L., and Read, W. G.: Enhancements in lower stratospheric CH3CN observed by the Upper Atmosphere Research Satellite Microwave Limb Sounder following boreal forest fires, J. Geophys. Res., 109, D06308, doi:10.1029/2003JD004055, 2004.

Marenco, A., Thouret, V., Nédélec, P., et al.: Measurement of ozone and water vapor by Airbus in-service aircraft: The MOZAIC airborne program, An overview, J. Geophys. Res., 103(D19), doi:10.1029/98JD00977, 1998.

Martin, R. V., Jacob, D. J., Yantosca, R. M., et al.: Global and regional decreases in tropospheric oxidants from photochemical effects of aerosols, J. Geophys. Res., 108(D3), 4097, doi:10.1029/2002JD002622, 2003.

Matsueda, H., Inoue, H. Y., Sawa, Y., Tsutsumi, Y., and Ishii, M.: Carbon monoxide in the upper troposphere over the western Pacific between 1993 and 1996 J. Geophys. Res., 103, 19 093–19 110, 1998.

Matsueda, H. and Inoue, H. Y.: Aircraft measurements of trace gases between Japan and Singapore in October of 1993, 1996, and 1997, Geophys. Res. Lett., 26, 2413–2416, 1999.

Matsueda, H., Inoue, H. Y., Ishii, M., and Tsutsumi, Y.: Large injection of carbon monoxide into the upper troposphere due to intense biomass burning in 1997, J. Geophys. Res., 104, 26 867–26 879, 1999.

Metwally, M.: Jet aircraft engine emissions database development: 1992 military, charter and nonscheduled traffic, NASA CR-4684, Natl. Aeronaut. and Space Admin., Washington, D.C., 1995.

Mote, P. W., Rosenlof, K. H., McIntyre, M. E., et al.: An atmospheric tape recorder: The imprint of tropical tropopause temperatures on stratospheric water vapor, J. Geophys. Res., 101, 3989–4006, 1996.

Nedelec, P., Cammas, J.-P., Thouret, V., et al.: An improved infrared carbon monoxide analyser for routine measurements aboard commercial Airbus aircraft: technical validation and first scientific results of the MOZAIC III programme, Atmos. Chem. Phys., 3, 1551–1564, 2003.

Nedelec, P., Thouret, V., Brioude, J., et al.: Extreme CO concentrations in the upper troposphere over northeast Asia in June 2003 from the in situ MOZAIC aircraft data, Geophys. Res. Lett., 32, L14807, doi:10.1029/2005GL023141, 2005.

Newell, R. E. and Gould-Stewart, S.: A Stratospheric Fountain?, American Meteorological Society, 38, 2789–2796, 1981.

Novelli, P. C., Steele, L. P., and Tans, P. P.: Mixing ratios of carbon monoxide in the troposphere, J. Geophys. Res., 102, 12 855–12 861, 1992.

Novelli, P. C., Masarie, K. A., and Lang, P. M.: Distributions and recent changes in carbon monoxide in the lower troposphere, J. Geophys. Res., 103, 19 015–19 033, 1998.

Olsen, M. A., Schoeberl, M. R., and Douglass, A. R.: Stratosphere-troposphere exchange of mass and ozone, J. Geophys. Res., 109, D24114, doi:10.1029/2004JD005186, 2004.

Olson, J.: World ecosystems (WE1.4): Digital raster data on a 10 minute geographic 1080 x 2160 grid, in Global ecosystems database, version 1.0: Disc A, Ed. NOAA Natl. Geophys. Data Center, Boulder, CO, 1992.

Piccot, S., Watson, J., and Jones, J.: A global inventory of volatile organic compound emissions from anthropogenic sources, J. Geophys. Res., 97, 9897–9912, 1992.

Pickering, K. E., Wang, Y. S., Tao, W. K., Price, C., and Muller, J. F.: Convective transport of biomass burning emissions over Brazil during TRACE A, J. Geophys. Res., 101, 23 993–24 012, 1996.

Pickering, K. E., Wang, Y. S., Tao, W. K., Price, C., and Muller, J. F.: Vertical distributions of lightning NOx for use in regional and global chemical transport models, J. Geophys. Res., 103(D23), 31 203–31 216, 1998.

Price, C. and Rind, D.: A simple lightning parameterization for calculating global lightning distributions, J. Geophys. Res., 97, 9919–9933, 1992.

Price, C., Penner, J., and Prather, M.: NOx from lightning, Part I: Global distribution based on lightning physics, J. Geophys. Res., 102, 5929–5941, 1997.

Prinn, R. G., Huang, J., Weiss, R. F., et al.: Evidence for variability of atmospheric hydroxyl radicals over the past quarter century, Geophys. Res. Lett., 32, L07809, doi:10.1029/2004GL022228, 2005.

Randel III, W. J., Zawodny, J. M., Oltmans, S. J.: Seasonal variation of water vapor in the lower stratosphere observed in Halogen Occultation Experiment data, J. Geophys. Res., 106, 14 313–14 325, 2001.

Randel III, W. J.: A large annual cycle in ozone above the tropical tropopause linked to the Brewer-Dobson circulation, J. Atmos. Sci., accepted, 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., 102, 28 127–28 138, 1997.

Ravishankara, A. R., Dunlea, E. J., Blitz, M. A., et al.: Redetermination of the rate coefficient for the reaction of O($^1$D) with N2, Geophys. Res. Lett., 29 (15), 1745, doi:10.1029/2002GL014850, 2002.

Rosenlof, K. H.: Seasonal cycle of the residual mean meridional circulation in the stratosphere, J. Geophys. Res., 100, 5173–5191, 1995.

Rossow, W. and Pearl, C.: 22-Year survey of tropical convection penetrating into the lower stratosphere, Geophys. Res. Lett., 34, L04803, doi:10.1029/2006GL028635, 2007.

Rotman, D. A., Tannahill, J. R., Kinnison, D. E., et al.: Global Modeling Initiative assessment model: Model description, integration, and testing of the transport shell, J. Geophys. Res., 106, 1669–1691, 2001.

Sander, S., Friedel, R., Ravishankara, A., et al.: Chemical kinetics and photochemical data for use in atmospheric studies, Evaluation no. 14, JPL Publ., 02–25, 2003.

Schoeberl, M. R., Douglass, A. R., Zhu, Z., and Pawson, S.: A comparison of the lower stratospheric age spectra derived from a general circulation model and two data assimilation systems, J. Geophys. Res., 108(D3), 4113, doi:10.1029/2002JD002652, 2003.

Schoeberl, M. R., Douglass, A. R., Hilsenrath, E., et al.: Earth observing systems benefit atmospheric research, EOS, 85, 177–178, 2004.

Schoeberl, M. R., Duncan, B. N., Douglass, A. R., Waters, J., Livesey, N., Read, W., and Filipiak, M.: The carbon monoxide tape recorder, Geophys. Res. Lett., 33, L12811, doi:10.1029/2006GL026178, 2006.

Sherwood, S. C.: A stratospheric "drain" over the Maritime Continent, Geophys. Res. Lett., 27, 677–680, 2000.

Spivakovsky, C. M., Logan, J. A., Montzka, S. A., et al.: Three-dimensional climatological distribution of tropospheric OH: Update and evaluation, J. Geophys. Res., 105(D7), 8931–8980, 2000.

Staudt, A. C., Jacob, D. J., Logan, J. A., Bachiochi, D., Krishnamurti, T. N., and Poisson, N.: Global chemical model analysis of biomass burning and lightning influences over the South Pacific in austral spring, J. Geophys. Res., 107(D14), 4200, doi:10.1029/2000JD000296, 2002.

Strahan, S. E., Duncan, B. N., and Hoor, P.: Evaluation of transport in the lowermost stratosphere using observationally-derived diagnostics, Atmos. Chem. and Phys. Discuss., 7, 2435–2445, 2007.

Thompson, A. M., Pickering, K. E., McNamara, D. P., Schoeberl, M. R., Hudson, R. D., Kim, J. H., Browell, E. V., Kirchoff, V. W. J. H., and Nganga, D.: Where did tropospheric ozone over southern Africa and the tropical Atlantic come from in October 1992? Insights from TOMS, GTE TRACE A, and SAFARI 1992, J. Geophys. Res., 101, 24 251–24 278, 1996.

Tyndall, G. S., Cox, R. A., Granier, C., Lesclaux, R., Moortgat, G. K., Pilling, M. J., Ravishankara, A. R., and Wallington, T. J.: Atmospheric chemistry of small organic peroxy radicals, J. Geophys. Res., 106(D11), 12 157–12 182, 10.1029/2000JD900746, 2001.

van der Werf, G., Anderson, J., Giglio, L., Collatz, G., and Kashibhatla, P.: Interannual variability in global biomass burning emissions from 1997 to 2004, Atmos. Chem. and Phys., 6, 3423–3441, 2006.

Wang, Y., Jacob, D. J., and Logan, J. A.: Global simulation of tropospheric O3-NOx-hydrocarbon chemistry: 1. Model formulation, J. Geophys. Res., 103, 10 713–10 725, 1998.

Wesely, M. L., Cook, D. R., Hart, R. L., and Speer, R. E.: Measurements and parameterization of particulate sulfur dry deposition over grass, J. Geophys. Res., 90, 2131–2143, 1985.

Wild, O., Zhu, X., and Prather, M. J.: Fast-J: Accurate simulation of in- and below-cloud photolysis in tropospheric chemical models, J. Atmos. Chem., 37, 245–282, 2000.

Yevich, R. and Logan, J. A.: An assessment of biofuel use and burning of agricultural waste in the developing world, Global Biogeochem. Cycles, 17(4), 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.

Ziemke, J.R., Chandra, S., Duncan, B. N., Froidevaux, L., Bhartia, P. K., Levelt, P. F., and Waters, J. W.: Tropospheric ozone determined from Aura OMI and MLS: Evaluation of measurements and comparison with the Global Modeling Initiative's Chemical Transport Model, J. Geophys. Res., 111, D19303, doi:10.1029/2006JD007089, 2006.