ACP Atmospheric Chemistry and Physics ACP 1680-7324 Copernicus GmbH Göttingen, Germany 10.5194/acp-9-9329-2009 Tropospheric ozone from IASI: comparison of different inversion algorithms and validation with ozone sondes in the northern middle latitudes Keim C. 1 17 Eremenko M. 1 Orphal J. 1 Dufour G. 1 Flaud J.-M. 1 Höpfner M. 2 Boynard A. 3 Clerbaux C. 3 Payan S. 4 Coheur P.-F. 5 Hurtmans D. 5 Claude H. 6 Dier H. 7 Johnson B. 8 Kelder H. 9 Kivi R. 10 Koide T. 11 López Bartolomé M. 12 Lambkin K. 13 Moore D. 14 Schmidlin F. J. 15 Stübi R. 16 Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA), CNRS/ Univ. Paris 12 et 7, Créteil, France Institut für Meteorologie und Klimaforschung, Forschungszentrum Karlsruhe, Germany UPMC Univ Paris 06, CNRS UMR8190, LATMOS/IPSL, Paris, France Laboratoire de Physique Moléculaire pour l'Atmosphére et l'Astrophysique, Université Pierre et Marie Curie-Paris 6, Paris, France Spectroscopie de l'Atmosphère, Service de Chimie Quantique et de Photophysique, Université Libre de Bruxelles (U.L.B.), Brussels, Belgium Meteorological Observatory Hohenpeißenberg, DWD, Hohenpeißenberg, Germany Richard-Aßmann-Observatorium, DWD, Lindenberg, Germany NOAA/ESRL, Boulder, CO, USA Department of Applied Physics, Eindhoven University of Technology, Eindhoven, The Netherlands Finnish Meteorological Institute, Sodankylä, Finland Ozone Layer Monitoring Office, Japan Meteorological Agency, Tokyo, 100-8122 Japan Agencia Estatal de Meteorología (AEMET), Madrid, Spain Met Éireann, The Irish Meteorological Service, Valentia Observatory, Cahirciveen, Kerry, Ireland Met Office, Exeter, UK NASA Goddard Space Flight Center, Wallops Flight Facility, Wallops Island, USA Federal Office of Meteorology and Climatology, MeteoSwiss, Aerological Station, Payerne, Switzerland now at: Astrium GmbH, Germany 15 12 2009 9 24 9329 9347 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.net/9/9329/2009/acp-9-9329-2009.html The full text article is available as a PDF file from http://www.atmos-chem-phys.net/9/9329/2009/acp-9-9329-2009.pdf

This paper presents a first statistical validation of tropospheric ozone products derived from measurements of the IASI satellite instrument. Since the end of 2006, IASI (Infrared Atmospheric Sounding Interferometer) aboard the polar orbiter Metop-A measures infrared spectra of the Earth's atmosphere in nadir geometry. This validation covers the northern mid-latitudes and the period from July 2007 to August 2008. Retrieval results from four different sources are presented: three are from scientific products (LATMOS, LISA, LPMAA) and the fourth one is the pre-operational product distributed by EUMETSAT (version 4.2). The different products are derived from different algorithms with different approaches. The difference and their implications for the retrieved products are discussed. In order to evaluate the quality and the performance of each product, comparisons with the vertical ozone concentration profiles measured by balloon sondes are performed and lead to estimates of the systematic and random errors in the IASI ozone products (profiles and partial columns). A first comparison is performed on the given profiles; a second comparison takes into account the altitude dependent sensitivity of the retrievals. Tropospheric columnar amounts are compared to the sonde for a lower tropospheric column (surface to about 6 km) and a "total" tropospheric column (surface to about 11 km). On average both tropospheric columns have small biases for the scientific products, less than 2 Dobson Units (DU) for the lower troposphere and less than 1 DU for the total troposphere. The comparison of the still pre-operational EUMETSAT columns shows higher mean differences of about 5 DU.

 References August, T., Schlüssel, P., Munro, R., Calbet, X., Oduleye, O., Arriaga, A., Hultberg, T., Hadji-Lazaro, J., Turquety, S., and Clerbaux, C.: ANN ozone retrieval within the operational IASI level 2 processor, in: Proceedings of the 2008 EUMETSAT meteorological satellite conference, Darmstadt, Germany, 8–12 September, 2008. Boynard, A., Clerbaux, C., Coheur, P.-F., Hurtmans, D., Turquety, S., George, M., Hadji-Lazaro, J., Keim, C., and Mayer-Arnek, J.: Measurements of total and tropospheric ozone from IASI: comparison with correlative satellite and ozonesonde observations, Atmos. Chem. Phys., 9, 6255–6271, 2009. Chevallier, F.: Sampled databases of 60-level atmospheric profiles from the ECMWF analyses, EUMETSAT/ECMWF SAF Programme Research Report No 4, 27 pp., 2001. Clerbaux, C., Coheur, P.-F., Hurtmans, D., Barret, B., Carleer, M., Colin, R., Semeniuk, K., McConnell, J. C., Boone, C., and Bernath, P.: Carbon monoxide distribution from the ACE-FTS solar occultation measurements, Geophys. Res. Lett., 32, L16S01, doi:10.1029/2005GL022394, 2005. Clerbaux, C., Hadji-Lazaro, J., Turquety, S., George, M., Coheur, P.-F., Hurtmans, D., Wespes, C., Herbin, H., Blumstein, D., Tournier, B., and Phulpin, T.: The IASI/MetOp I mission: First observations and highlights of its potential contribution to GMES, Space Res. Today, 168, 19–24, 2007. Clerbaux, C., Boynard, A., Clarisse, L., George, M., Hadji-Lazaro, J., Herbin, H., Hurtmans, D., Pommier, M., Razavi, A., Turquety, S., Wespes, C., and Coheur, P.-F.: Monitoring of atmospheric composition using the thermal infrared IASI/MetOp sounder, Atmos. Chem. Phys., 9, 8307–8339, 2009. Clough, S. A., Shephard, M. W., Mlawer, E. J., Delamere, J. S., Iacono, M. J., Cady-Pereira, K., Boukabara, S., and Brown, P. D.: Atmospheric radiative transfer modeling: a summary of the AER codes, Short Communication, J. Quant. Spectrosc. Radiat. T., 91, 233–244, 2005. Coheur, P.-F., Barret, B., Turquety, S., Hurtmans, D., Hadji-Lazaro, J., and Clerbaux, C.: Retrieval and characterization of ozone vertical profiles from a thermal infrared nadir sounder, J. Geophys. Res., 110, D24303, doi:10.1029/2005JD005845, 2005. Cortesi, U., Lambert J. C., De Clercq, C., Bianchini, G., Blumenstock, T., Bracher, A., Castelli, E., Catoire, V., Chance, K. V., De~Mazière, M., Demoulin, P., Godin-Beekmann, S., Jones, N., Jucks, K., Keim, C., Kerzenmacher, T., Kuellmann, H., Kuttippurath, J., Iarlori, M., Liu, G. Y., Liu, Y., McDermid, I. S. Y., Meijer, J., Mencaraglia, F., Mikuteit, S., Oelhaf, H., Piccolo, C., Pirre, M., Raspollini, P., Ravegnani, F., Reburn, W. J., Redaelli, G., Remedios, J. J., Sembhi, H., Smale, D., Steck, T., Taddei, A., Varotsos, C., Vigouroux, C., Waterfall, A., Wetzel, G., and Wood, S.: Geophysical validation of MIPAS-ENVISAT operational ozone data, Atmos. Chem. Phys., 7, 4807–4867, 2007. Deshler, T., Mercer, J. L., Smit, H. G. J., Stubi, R., Levrat, G., Johnson, B. J., Oltmans, S. J., Kivi, R., Thompson, A. M., Witte, J., Davies, J., Schmidlin, F. J., Brothers, G., and Sasaki, T.: Atmospheric comparison of electrochemical cell ozonesondes from different manufacturers, and with different cathode solution strengths: The Balloon Experiment on Standards for Ozonesondes, J. Geophys. Res., 113, D04307, doi:10.1029/2007JD008975, 2008. Dupuy,~E., Walker, K. A., Kar, J., Boone, C. D., McElroy, C. T., Bernath, P. F., Drummond, J. R., Skelton, R., McLeod, S. D., Hughes, R. C., Nowlan, C. R., Dufour, D. G., Zou, J., Nichitiu, F., Strong, K., Baron, P., Bevilacqua, R. M., Blumenstock, T., Bodeker, G. E., Borsdorff, T., Bourassa, A. E., Bovensmann, H., Boyd, I. S., Bracher, A., Brogniez, C., Burrows, J. P., Catoire, V., Ceccherini, S., Chabrillat, S., Christensen, T., Coffey, M. T., Cortesi, U., Davies, J., De�Clercq, C., Degenstein, D. A., De~Mazière, M., Demoulin, P., Dodion, J., Firanski, B., Fischer, H., Forbes, G., Froidevaux, L., Fussen, D., Gerard, P., Godin-Beekmann, S., Goutail, F., Granville, J., Griffith, D., Haley, C. S., Hannigan, J. W., Höpfner, M., Jin, J. J., Jones, A., Jones, N. B., Jucks, K., Kagawa, A., Kasai, Y., Kerzenmacher, T. E., Kleinböhl, A., Klekociuk, A. R., Kramer, I., Küllmann, H., Kuttippurath, J., Kyrölä, E., Lambert, J.-C., Livesey, N. J., Llewellyn, E. J., Lloyd, N. D., Mahieu, E., Manney, G. L., Marshall, B. T., McConnell, J. C., McCormick, M. P., McDermid, I. S., McHugh, M., McLinden, C. A., Mellqvist, J., Mizutani, K., Murayama, Y., Murtagh, D. P., Oelhaf, H., Parrish, A., Petelina, S. V., Piccolo, C., Pommereau, J.-P., Randall, C. E., Robert, C., Roth, C., Schneider, M., Senten, C., Steck, T., Strandberg, A., Strawbridge, K. B., Sussmann, R., Swart, D. P. J., Tarasick, D. W., Taylor, J. R., Tétard, C., Thomason, L. W., Thompson, A. M., Tully, M. B., Urban, J., Vanhellemont, F., Vigouroux, C., von~Clarmann, T., von~der~Gathen, P., von~Savigny, C., Waters, J. W., Witte, J. C., Wolff, M., and Zawodny, J. M.: Validation of ozone measurements from the Atmospheric Chemistry Experiment (ACE), Atmos. Chem. Phys., 9, 287-343, 2009. Eremenko, M., Dufour, G., Foret, G., Keim, C., Orphal, J., Beekmann, M., Bergametti, G., and Flaud, J.-M.: Tropospheric ozone distributions over Europe during the heat wave in July 2007 observed from infrared nadir spectra recorded by IASI, Geophys. Res. Lett., 35, L18805, doi:10.1029/2008GL034803, 2008. EUMETSAT: EPS Ground segment, IASI Level2 Product Generation Specification, EPS.SYS.SPE.990013 EUMETSAT Technical Note, online available at: http://www.eumetsat.int/, last access: 2009, 2004. Fischer, H., Birk, M., Blom, C., Carli, B., Carlotti, M., von Clarmann, T., Delbouille, L., Dudhia, A., Ehhalt, D., Endemann, M., Flaud, J. M., Gessner, R., Kleinert, A., Koopman, R., Langen, J., López-Puertas, M., Mosner, P., Nett, H., Oelhaf, H., Perron, G., Remedios, J., Ridolfi, M., Stiller, G., and Zander, R.: MIPAS: an instrument for atmospheric and climate research, Atmos. Chem. Phys., 8, 2151–2188, 2008. Fishman,J. , Ramanathan, V., Crutzen, P. J., and Liu, S. C.: Tropospheric ozone and climate, Nature, 282, 818–820, 1979. Fishman, J., Wozniak, A. E., and Creilson, J. K.: Global distribution of tropospheric ozone from satellite measurements using the empirically corrected tropospheric ozone residual technique: identification of the regional aspects of air pollution, Atmos. Chem. Phys., 3, 1453–1476, 2003. Flaud, J.-M., Piccolo, C., Carli, B., Perrin, A., Coudert, L. H., Teffo, J.-L., and Brown, L. R.: Molecular line parameters for the MIPAS (Michelson Interferometer for Passive Atmospheric Sounding) experiment, Atmos. Oceanic Opt., 16, 172–182, 2003. Jones, D. B. A., Bowman, K. W., Horowitz, L. W., Thompson, A. M., Tarasick, D. W., and Witte, J. C.: Estimating the summertime tropospheric ozone distribution over North America through assimilation of observations from the Tropospheric Emission Spectrometer, J. Geophys. Res., 113, D18307, doi:10.1029/2007JD009341, 2008. Kulawik, S. S., Osterman, G., Jones, D. B. A., and Bowman, K. W.: Calculation of Altitude-Dependent Tikhonov Constraints for TES Nadir Retrievals, IEEE Trans. Geosci. Remote Sensing, 44, 1334–1342, 2006. Li, D. and Shine, K. P.: A 4-dimensional ozone climatology for UGAMP models, Internal Report No. 35, U.G.A.M.P., 1995. Liu, X., Chance, K. V., Sioris, C. E., Spurr, R. J. D., Kurosu, T. P., Martin, R. V., and Newchurch, M. J.: Ozone profile and tropospheric ozone retrievals from Global Ozone Monitoring Experiment: Algorithm description and validation, J. Geophys. Res., 110, D20307, doi:10.1029/2005JD006240, 2005. Matricardi, M. and Saunders, R. W.: Fast radiative transfer model for simulation of infrared atmospheric sounding Interferometer radiances. Appl. Opt., 38, 5679–5691, 1999. McPeters, R. D., Labow, G. J., and Logan, J. A.: Ozone climatological profiles for satellite retrieval algorithms, J. Geophys. Res., 112, D05308, doi:10.1029/2005JD006823, 2007. Nassar, R., Logan, J. A., Worden, H. M., Megretskaia, I. A., Bowman, K. W., Osterman, G. B., Thompson, A. M., Tarasick, D. W., Austin, S., Claude, H., Dubey, M. K., Hocking, W. K., Johnson, B. J., Joseph, E., Merrill, J., Morris, G. A., Newchurch, M., Oltmans, S. J., Posny, F., Schmidlin, F. J., Vömel, H., Whiteman D. N., Witte, J. C.: Validation of Tropospheric Emission Spectrometer (TES) Nadir Ozone Profiles Using Ozonesonde Measurements, J. Geophys. Res., 113, D15S17, doi:10.1029/2007JD008819, 2008. Nelder, J. A. and Mead, R.: A simplex-method for function minimization, Comput. J., 7, 308–313, 1965. Oduleye, O., August, T., Calbet, X., Schlüssel, P., Arriaga, A., Hultberg, T., Aulamo, O., Kivi, R., Stiller, B., and Barfus, K.: ASI EOF and ANN Retrieved Total Columnar Amounts Ozone, Compared to Ozone Sonde and Brewer Spectrometer Measurements from the Lindenberg and Sodankylä Validation Campaigns, in: Proceedings of the 2008 EUMETSAT meteorological satellite conference, Darmstadt, Germany, 8–12 September, 2008. Payan, S., Camy-Peyret, C., Jeseck, P., Hawat, T., Durry, G., and Lefèvre, F.: First direct simultaneous HCl and ClONO2 profile measurements in the Artic vortex, Geophys. Res. Letters, 25(14), 2663–2666, 1998. Phillips, C.: A Technique for the Numerical Solution of Certain Integral Equations of the First Kind, J. Assoc. Comput. Math., 9, 84–97, 1962. Rodgers, C. D.: Inverse Methods for Atmospheric Sounding: Theory and Practice, World Scientific Publications, Series on Atmospheric, Ocean. Planet. Phys., Vol. 2, Singapore, 2000. Rothman, L. S. , Jacquemart, D., Barbe, A., Benner, C. D., Birk, M., Brown, L. R., Carleer, M. R., Chackerian Jr., C., Chance, K., Coudert, L. H., Dana, V., Devi, V. M., Flaud, J.-M., Gamache, R. R., Goldman, A., Hartmann, J.-M., Jucks, K.W., Maki, A. G., Mandin, J.-Y., Massie, S. T., Orphal, J., Perrin, A., Rinsland, C. P., Smith, M. A. H., Tennyson, J., Tolchenov, R. N., Toth, R. A., Vander Auwera, J., Varanasi, P., and Wagner, G.: The HITRAN 2004 molecular spectroscopic database, J. Quant. Spectrosc. Rad. T., 96, 139–204, 2005. Seinfeld, J. H. and Pandis, S. N.: Atmospheric Chemistry and Physics, from Air Pollution to Climate Change, John Wiley & Sons Inc., Toronto, Canada, 1997. Smit, H.G.J., Straeter, W., Johnson, B., Oltmans, S., Davies, J., Tarasick, D.W., Hoegger, B., Stubi, R., Schmidlin, F., Northam, T., Thompson, A., Witte, J., Boyd, I., and Posny, F.: Assessment of the performance of ECC-ozonesondes under quasi-flight conditions in the environmental simulation chamber: Insights from the Juelich Ozone Sonde Intercomparison Experiment (JOSIE), J. Geophys Res., 112, D19306, doi:10.1029/2006JD007308, 2007. Steck, T.: Methods for determining regularization for atmospheric retrieval problems, Appl. Opt., 41, 1788–1797, 2002. Stiller, G. P. (ed) with contributions from v. Clarmann, T., Dudhia, A., Echle, G., Funke, B., Glatthor, N., Hase, F., Höpfner, M., Kellmann, S., Kemnitzer, H., Kuntz, M., Linden, A., Linder, M., Stiller, G. P., and Zorn, S.: The Karlsruhe Optimized and Precise Radiative Transfer Algorithm (KOPRA), vol. FZKA 6487 of Wissenschaftliche Berichte, Forschungszentrum Karlsruhe, Germany, 2000. Thompson, A. M., Witte, J. C., McPeters, R. D., Oltmans, S. J., Schmidlin, F. J., Logan, J. A., Fujiwara, M., Kirchhoff, V. W. J. H., Posny, F., Coetzee, G. J. R., Hoegger, B., Kawakami, S., Ogawa, T., Johnson, B. J., Vömel, H., and Labow, G.: Southern Hemisphere Additional Ozonesondes (SHADOZ) 1998–2000 tropical ozone climatology 1. Comparison with Total Ozone Mapping Spectrometer (TOMS) and ground-based measurements, J. Geophys. Res., 108, 8238, doi:10.1029/2001JD000967, 2003. Tikhonov, A.: On the Solution of Incorrectly Stated Problems and a Method of Regularisation, Dokl. Acad. Nauk SSSR, 151, 501-504, 1963. Tjemkes, S. A., Patterson, T., Rizzi, R., Shephard, M. W., Clough, S. A., Matricardi, M., Haigh, J. D., Höpfner, M., Payan, S., Trotsenko, A., Scott, N., Rayer, P., Taylor, J. P., Clerbaux, C., Strow, L. L., DeSouza-Machado, S., Tobin, D., Knuteson, R.: The ISSWG line-by-line inter-comparison experiment, J. Quant. Spectrosc. Radiat. Transfer, 77, 433–453, doi:10.1016/S0022-4073(02)00174-7, 2003. Turquety, S., Hadji-Lazaro, J., and Clerbaux, C.: First satellite ozone distributions retrieved from nadir high-resolution infrared spectra, Geophys. Res. Lett., 29, 2198, doi:10.1029/2002GL016431, 2002. Turquety, S., Hadji-Lazaro, J., Clerbaux, C., Hauglustaine, D. A., Clough, S. A., Cassé, V., Schlüssel, P., and Mégie, G.: Operational trace gas retrieval algorithm for the Infrared Atmospheric Sounding Interferometer, J. Geophys. Res., 109, D21301, doi:10.1029/2004JD004821, 2004. von Clarmann, T. and Grabowski, U.: Elimination of hidden a priori information from remotely sensed profile data, Atmos. Chem. Phys., 7, 397–408, 2007. Worden, H. M., Logan, J. A., Worden, J. R., Beer, R., Bowman, K., Clough, S. A., Eldering, A., Fisher, B. M., Gunson, M. R., Herman, R. L., Kulawik, S. S., Lampel, M. C., Luo, M., Megretskaia, I. A., Osterman, G. B., and Shephard, M. W.: Comparisons of Tropospheric Emission Spectrometer (TES) ozone profiles to ozonesondes: Methods and initial results, J. Geophys. Res., 112, D03309, doi:10.1029/2006JD007258, 2007. Worden, H. M., Bowman, K. W., Eldering, A., and Beer, R.: Satellite measurements of the clear-sky greenhouse effect from tropospheric ozone, Nature Geoscience, 1, 305–308, doi:10.1038/ngeo182, 2008.