Dr. Gerald Wetzel

Dr. Gerald Wetzel

  • Karlsruhe Institute of Technology
    IMK-ASF
    P.O. Box 3640
    76021 Karlsruhe

Publications

For further information see ORCID and Web of Science.

Peer-reviewed scientific publications (64):

 - as leading author (in chronological order):

  1. Wetzel, G., M. Höpfner, H. Oelhaf, F. Friedl-Vallon, A. Kleinert, G. Maucher, M. Sinnhuber, J. Abalichin, A. Dehn, and P. Raspollini, Long-term validation of MIPAS ESA operational products using MIPAS-B measurements, Atmos. Meas. Tech., 15, 6669-6704, 2022.

  2. Wetzel, G., F. Friedl-Vallon, N. Glatthor, J.-U. Grooß, T. Gulde, M. Höpfner, S. Johansson, F. Khosrawi, O. Kirner, A. Kleinert, E. Kretschmer, G. Maucher, H. Nordmeyer, H. Oelhaf, J. Orphal, C. Piesch, B.-M. Sinnhuber, J. Ungermann, and B. Vogel, Pollution trace gases C2H6, C2H2, HCOOH, and PAN in the North Atlantic UTLS: observations and simulations, Atmos. Chem. Phys., 21, 8213-8232, 2021.

  3. Wetzel, G., H. Oelhaf, M. Höpfner, F. Friedl-Vallon, A. Ebersoldt, T. Gulde, S. Kazarski, O. Kirner, A. Kleinert, G. Maucher, H. Nordmeyer, J. Orphal, R. Ruhnke, and B.-M. Sinnhuber, Diurnal variations of BrONO2 observed by MIPAS-B at midlatitudes and in the Arctic, Atmos. Chem. Phys., 17, 14631-14643, 2017.

  4. Wetzel, G., H. Oelhaf, M. Birk, A. de Lange, A. Engel, F. Friedl-Vallon, O. Kirner, A. Kleinert, G. Maucher, H. Nordmeyer, J. Orphal, R. Ruhnke, B.-M. Sinnhuber, and P. Vogt, Partitioning and budget of inorganic and organic chlorine species observed by MIPAS-B and TELIS in the Arctic in March 2011, Atmos. Chem. Phys., 15, 8065-8076, 2015.

  5. Wetzel, G., H. Oelhaf, F. Friedl-Vallon, A. Kleinert, G. Maucher, H. Nordmeyer, and J. Orphal, Long-term intercomparison of MIPAS additional species ClONO2, N2O5, CFC-11, and CFC-12 with MIPAS-B measurements, Annals of Geophysics, 56, Fast Track-1, 2013.

  6. Wetzel, G., H. Oelhaf, G. Berthet, A. Bracher, C. Cornacchia, D. G. Feist, H. Fischer, A. Fix, M. Iarlori, A. Kleinert, A. Lengel, M. Milz, L. Mona, S. C. Müller, J. Ovarlez, G. Pappalardo, C. Piccolo, P. Raspollini, J.-B. Renard, V. Rizi, S. Rohs, C. Schiller, G. Stiller, M. Weber, and G. Zhang, Validation of MIPAS-ENVISAT H2O operational data collected between July 2002 and March 2004, Atmos. Chem. Phys., 13, 5791-5811, 2013.

  7. Wetzel, G., H. Oelhaf, O. Kirner, F. Friedl-Vallon, R. Ruhnke, A. Ebersoldt, A. Kleinert, G. Maucher, H. Nordmeyer, and J. Orphal, Diurnal variations of reactive chlorine and nitrogen oxides observed by MIPAS-B inside the January 2010 Arctic vortex, Atmos. Chem. Phys., 12, 6581-6592, 2012.

  8. Wetzel, G., H. Oelhaf, O. Kirner, R. Ruhnke, F. Friedl-Vallon, A. Kleinert, G. Maucher, H. Fischer, M. Birk, G. Wagner, and A. Engel, First remote sensing measurements of ClOOCl along with ClO and ClONO2 in activated and deactivated Arctic vortex conditions using new ClOOCl IR absorption cross sections, Atmos. Chem. Phys., 10, 931-945, 2010.

  9. Wetzel, G., T. Sugita, H. Nakajima, T. Tanaka, T. Yokota, F. Friedl-Vallon, A. Kleinert, G. Maucher, and H. Oelhaf, Technical Note: Intercomparison of ILAS-II version 2 and 1.4 trace species with MIPAS-B measurements, Atmos. Chem. Phys., 8, 1119-1126, 2008.

  10. Wetzel, G., A. Bracher, B. Funke, F. Goutail, F. Hendrick, J.-C. Lambert, S. Mikuteit, C. Piccolo, M. Pirre, A. Bazureau, C. Belotti, T. Blumenstock, M. De Mazière, H. Fischer, N. Huret, D. Ionov, M. López-Puertas, G. Maucher, H. Oelhaf, J.-P. Pommereau, R. Ruhnke, M. Sinnhuber, G. Stiller, M. Van Roozendael, and G. Zhang, Validation of MIPAS-ENVISAT NO2 operational data, Atmos. Chem. Phys., 7, 3261-3284, 2007.

  11. Wetzel, G., H. Oelhaf, F. Friedl-Vallon, A. Kleinert, A. Lengel, G. Maucher, H. Nordmeyer, R. Ruhnke, H. Nakajima, Y. Sasano, T. Sugita, and T. Yokota, Intercomparison and validation of ILAS-II version 1.4 target parameters with MIPAS-B measurements, J. Geophys. Res., 111, D11S06, doi:10.1029/2005JD006287, 2006.

  12. Wetzel, G., H. Oelhaf, R. Ruhnke, F. Friedl-Vallon, A. Kleinert, W. Kouker, G. Maucher, T. Reddmann, M. Seefeldner, M. Stowasser, O. Trieschmann, T. von Clarmann, and H. Fischer, NOy partitioning and budget and its correlation with N2O in the Arctic vortex and in summer mid-latitudes in 1997, J. Geophys. Res., 107(D16), 4280, doi:10.1029/2001JD000916, 2002.

  13. Wetzel, G., H. Oelhaf, T. von Clarmann, H. Fischer, F. Friedl-Vallon, G. Maucher, M. Seefeldner, O. Trieschmann, and F. Lefèvre, Vertical profiles of N2O5, HO2NO2, and NO2 inside the Arctic vortex, retrieved from nocturnal MIPAS-B2 infrared limb emission measurements in February 1995, J. Geophys. Res., 102, 19177-19186, 1997.

  14. Wetzel, G., T. von Clarmann, H. Oelhaf, and H. Fischer, Vertical profiles of N2O5 along with CH4, N2O, and H2O in the late Arctic winter retrieved from MIPAS-B infrared limb emission measurements, J. Geophys. Res., 100, 23173-23181, 1995.

  15. Wetzel, G., H. Fischer, and H. Oelhaf, Remote sensing of trace gases in the midinfrared spectral region from a nadir view, Appl. Opt., 34, 467-479, 1995.

 - as co-author (in alphabetical order):

  1. Cortesi, U., J. C. Lambert, C. De Clercq, G. Bianchini, T. Blumenstock, A. Bracher, E. Castelli, V. Catoire, K. V. Chance, M. De Mazière, P. Demoulin, S. Godin-Beekmann, N. Jones, K. Jucks, C. Keim, T. Kerzenmacher, H. Kuellmann, J. Kuttippurath, M. Iarlori, G. Y. Liu, Y. Liu, I. S. McDermid, Y. J. Meijer, F. Mencaraglia, S. Mikuteit, H. Oelhaf, C. Piccolo, M. Pirre, P. Raspollini, F. Ravegnani, W. J. Reburn, G. Redaelli, J. J. Remedios, H. Sembhi, D. Smale, T. Steck, A. Taddei, C. Varotsos, C. Vigouroux, A. Waterfall, G. Wetzel, and S. Wood, Geophysical validation of MIPAS-ENVISAT operational ozone data, Atmos. Chem. Phys., 7, 4807-4867, 2007.

  2. Davies, S., G. W. Mann, K. S. Carslaw, M. P. Chipperfield, J. A. Kettleborough, M. L. Santee, H. Oelhaf, G. Wetzel, Y. Sasano, and T. Sugita, 3-D microphysical model studies of Arctic denitrification: comparison with observations, Atmos. Chem. Phys., 5, 3093-3109, 2005.

  3. Eckert, E., T. von Clarmann, A. Laeng, G. P. Stiller, B. Funke, N. Glatthor, U. Grabowski, S. Kellmann, M. Kiefer, A. Linden, A. Babenhauserheide, G. Wetzel, C. Boone, A. Engel, J. J. Harrison, P. E. Sheese, K. A. Walker, and P. F. Bernath, MIPAS IMK/IAA carbon tetrachloride (CCl4) retrieval and first comparison with other instruments, Atmos. Meas. Tech., 10, 2727-2743, 2017.

  4. Eckert, E., A. Laeng, S. Lossow, S. Kellmann, G. Stiller, T. von Clarmann, N. Glatthor, M. Höpfner, M. Kiefer, H. Oelhaf, J. Orphal, B. Funke, U. Grabowski, F. Haenel, A. Linden, G. Wetzel, W. Woiwode, P. F. Bernath, C. Boone, G. S. Dutton, J. W. Elkins, A. Engel, J. C. Gille, F. Kolonjari, T. Sugita, G. C. Toon, and K. A. Walker, MIPAS IMK/IAA CFC-11 (CCl3F) and CFC-12 (CCl2F2) measurements: accuracy, precision and long-term stability, Atmos. Meas. Tech., 9, 3355-3389, 2016.

  5. Ejiri, M. K., Y. Terao, T. Sugita, H. Nakajima, T. Yokota, G. C. Toon, B. Sen, G. Wetzel, H. Oelhaf, J. Urban, D. Murtagh, H. Irie, N. Saitoh, T. Tanaka, H. Kanzawa, M. Shiotani, S. Aoki, G. Hashida, T. Machida, T. Nakazawa, H. Kobayashi, and Y. Sasano, Validation of the Improved Limb Atmospheric Spectrometer-II (ILAS-II) Version 1.4 nitrous oxide and methane profiles, J. Geophys. Res., 111, D22S90, doi:10.1029/2005JD006449, 2006.

  6. Engel, A., T. Möbius, H.-P. Haase, H. Bönisch, T. Wetter, U. Schmidt, I. Levin, T. Reddmann, H. Oelhaf, G. Wetzel, K. Grunow, N. Huret and M. Pirre, Observation of mesospheric air inside the arctic stratospheric polar vortex in early 2003, Atmos. Chem. Phys., 6, 267-282, 2006.

  7. Evans, J. T., M.P. Chipperfield, H. Oelhaf, M. Stowasser, and G. Wetzel, Effect of near-IR photolysis of HO2NO2 on stratospheric chemistry, Geophys. Res. Lett., 30(5), 1223, doi:10.1029/2002GL016470, 2003.

  8. Funke, B., M. López-Puertas, H. Fischer, G. P. Stiller, T. von Clarmann, G. Wetzel, B. Carli, and C. Belotti, Comment on "Origin of the January-April 2004 increase in stratospheric NO2 observed in northern polar latitudes", Geophys. Res. Lett., 34, L07813, doi:10.1029/2006GL027518, 2007.

  9. Glatthor, N., T. von Clarmann, G. P. Stiller, M. Kiefer, A. Laeng, B. M. Dinelli, G. Wetzel, and J. Orphal, Differences in ozone retrieval in MIPAS channels A and AB: a spectroscopic issue, Atmos. Meas. Tech., 11, 4707-4723, 2018.

  10. Höpfner, M., O. Kirner, G. Wetzel, B.-M. Sinnhuber, F. Haenel, S. Johansson, J. Orphal, R. Ruhnke, G. Stiller, and T. von Clarmann, The Michelson Interferometer for Passive Atmospheric Sounding global climatology of BrONO2 2002–2012: a test for stratospheric bromine chemistry, Atmos. Chem. Phys., 21, 18433-18464, 2021.

  11. Höpfner, M., R. Volkamer, U. Grabowski, M. Grutter, J. Orphal, G. Stiller, T. von Clarmann, and G. Wetzel, First detection of ammonia (NH3) in the Asian summer monsoon upper troposphere, Atmos. Chem. Phys., 16, 14357-14369, 2016.

  12. Höpfner, M., T. von Clarmann, H. Fischer, B. Funke, N. Glatthor, U. Grabowski, S. Kellmann, M. Kiefer, A. Linden, M. Milz, T. Steck, G. P. Stiller, P. Bernath, C. E. Blom, Th. Blumenstock, C. Boone, K. Chance, M. T. Coffey, F. Friedl-Vallon, D. Griffith, J. W. Hannigan, F. Hase, N. Jones, K. W. Jucks, C. Keim, A. Kleinert, W. Kouker, G. Y. Liu, E. Mahieu, J. Mellqvist, S. Mikuteit, J. Notholt, H. Oelhaf, C. Piesch, T. Reddmann, R. Ruhnke, M. Schneider, A. Strandberg, G. Toon, K. A. Walker, T. Warneke, G. Wetzel, S. Wood, and R. Zander, Validation of MIPAS ClONO2 measurements, Atmos. Chem. Phys., 7, 257-281, 2007.

  13. Höpfner, M., H. Oelhaf, G. Wetzel, F. Friedl-Vallon, A. Kleinert, A. Lengel, G. Maucher, H. Nordmeyer, N. Glatthor, G. Stiller, T. von Clarmann, H. Fischer, C. Kröger, and T. Deshler, Evidence of scattering of tropospheric radiation by PSCs in mid-IR limb emission spectra: MIPAS-B observations and KOPRA simulations, Geophys. Res. Lett., 29(8), 1278, doi: 10.1029/2001GL014443, 2002.

  14. Irie, H., T. Sugita, H. Nakajima, T. Yokota, H. Oelhaf, G. Wetzel, G. C. Toon, B. Sen, M. L. Santee, Y. Terao, N. Saitoh, M. K. Ejiri, T. Tanaka, Y. Kondo, H. Kanzawa, H. Kobayashi, and Y. Sasano, Validation of stratospheric nitric acid profiles observed by Improved Limb Atmospheric Spectrometer (ILAS-II), J. Geophys. Res., 111, D11S03, doi:10.1029/2005JD006115, 2006.

  15. Irie, H., Y. Kondo, M. Koike, M. Y. Danilin, C. Camy-Peyret, S. Payan, J. P. Pommereau, F. Goutail, J.-B. Renard, H. Oelhaf, G. Wetzel, G. C. Toon, B. Sen, J.-F. Blavier, R. Salawitch, R. M. Bevilacqua, J. M. Russell III, H. Kanzawa, H. Nakajima, Y. Yokota, T. Sugita, and Y. Sasano, Validation of NO2 and HNO3 measurements from the Improved Limb Atmospheric Spectrometer (ILAS) with the version 5.20 retrieval algorithm, J. Geophys. Res., 107(D24), 8206, doi: 10.1029/2001JD001304, 2002.

  16. Johansson, S., M. Höpfner, F. Friedl-Vallon, N. Glatthor, T. Gulde, V. Huijnen, A. Kleinert, E. Kretschmer, G. Maucher, T. Neubert, H. Nordmeyer, C. Piesch, P. Preusse, M. Riese, B.-M. Sinnhuber, J. Ungermann, G. Wetzel, and W. Woiwode, Ammonia in the upper troposphere–lower stratosphere (UTLS): GLORIA airborne measurements for CAMS model evaluation in the Asian monsoon and in biomass burning plumes above the South Atlantic, Atmos. Chem. Phys., 24, 8125–8138, 2024.

  17. Johansson, S., G. Wetzel, F. Friedl-Vallon, N. Glatthor, M. Höpfner, A. Kleinert, T. Neubert, B.-M. Sinnhuber, and J. Ungermann, Biomass burning pollution in the South Atlantic upper troposphere: GLORIA trace gas observations and evaluation of the CAMS model, Atmos. Chem. Phys., 22, 3675-3691, 2022.

  18. Johansson, S., M. Höpfner, O. Kirner, I. Wohltmann, S. Bucci, B. Legras, F. Friedl-Vallon, N. Glatthor, E. Kretschmer, J. Ungermann, and G. Wetzel, Pollution trace gas distributions and their transport in the Asian monsoon upper troposphere and lowermost stratosphere during the StratoClim campaign 2017, Atmos. Chem. Phys., 20, 14695–14715, 2020.

  19. Kanzawa, H., T. Sugita, H. Nakajima, G. E. Bodeker, H. Oelhaf, M. Stowasser, G. Wetzel, A. Engel, U. Schmidt, I. Levin, G. C. Toon, B. Sen, J.-F. Blavier, S. Aoki, T. Nakazawa, K. W. Jucks, D.G. Johnson, W. A. Traub, C. Camy-Peyret, S. Payan, P. Jeseck, I. Murata, H. Fukunishi, M. von König, H. Bremer, H. Küllmann, J. H. Park, L. L. Pan, T. Yokota, M. Suzuki, M. Shiotani, and Y. Sasano, Validation and data characteristics of nitrous oxide and methane profiles observed by the Improved Limb Atmospheric Spectrometer (ILAS) and processed with the Version 5.20 algorithm, J. Geophys. Res., 108(D16), 8003, doi:10.1029/2002JD002458, 2003.

  20. Khosrawi, F., R. Müller, H. Irie, A. Engel, G.C. Toon, B. Sen, S. Aoki, T. Nakazawa, W. A. Traub, K. W. Jucks, D.G. Johnson, H. Oelhaf, G. Wetzel, T. Sugita, H. Kanzawa, T. Yokota, H. Nakajima, and Y. Sasano, Validation of CFC-12 measurements from the Improved Limb Atmospheric Spectrometer (ILAS) with the Version 6.0 retrieval algorithm, J. Geophys. Res., 109, D06311, doi:10.1029/2003JD004325, 2004.

  21. Koike, M., Y. Kondo, H. Irie, F. J. Murcray, J. Williams, P. Fogal, R. Blatherwick, C. Camy-Peyret, S. Payan, H. Oelhaf, G. Wetzel, W. Traub, D. Johnson, K. Jucks, G. C. Toon, B. Sen, J.-F. Blavier, H. Schlager, H. Ziereis, N. Toriyama, M. Y. Danilin, J. M. Rodriguez, H. Kanzawa, and Y. Sasano, A comparison of Arctic HNO3 profiles measured by the Improved Limb Atmospheric Spectrometer and balloon-borne sensors, J. Geophys. Res., 105, 6761-6771, 2000.

  22. Konopka, P., A. Engel, B. Funke, R. Müller, J.-U. Grooß, G. Günther, T. Wetter, G. Stiller, T. von Clarmann, N. Glatthor, H. Oelhaf, G. Wetzel, M. López-Puertas, M. Pirre, N. Huret, and M. Riese, Ozone loss driven by nitrogen oxides and triggered by stratospheric warmings can outweigh the effect of halogens, J. Geophys. Res., 112, D05105, doi:10.1029/2006JD007064, 2007.

  23. König, N., G. Wetzel, M. Höpfner, F. Friedl-Vallon, S. Johansson, A. Kleinert, M. Schneider, B. Ertl, and J. Ungermann, Retrieval of water vapour profiles from GLORIA nadir observations, Remote Sens., 13, 3675, 2021.

  24. Kritten, L., A. Butz, M. P. Chipperfield, M. Dorf, S. Dhomse, R. Hossaini, H. Oelhaf, C. Prados-Roman, G. Wetzel, and K. Pfeilsticker, Constraining the N2O5 UV absorption cross section from spectroscopic trace gas measurements in the tropical mid-stratosphere, Atmos. Chem. Phys., 14, 9555-9566, 2014.

  25. Krysztofiak, G., V. Catoire, T. Dudok de Wit, D. E. Kinnison, A. R. Ravishankara, V. Brocchi, E. Atlas, H. Bozem, R. Commane, F. D’Amato, B. Daube, G. S. Diskin, A. Engel, F. Friedl-Vallon, E. Hintsa, D. F. Hurst, P. Hoor, F. Jegou, K. W. Jucks, A. Kleinböhl, H. Küllmann, E. A. Kort, K. McKain, F. L. Moore, F. Obersteiner, Y. Gonzalez Ramos, T. Schuck, G. C. Toon, S. Viciani, G. Wetzel, J. Williams, and S. C. Wofsy, N2O temporal variability from the middle troposphere to the middle stratosphere based on airborne and balloon-borne observations during the period 1987–2018, Atmosphere 2023, 14, 585, 2023.

  26. Milz, M., T. v. Clarmann, P. Bernath, C. Boone, S. A. Buehler, S. Chauhan, B. Deuber, D. G. Feist, B. Funke, N. Glatthor, U. Grabowski, A. Griesfeller, A. Haefele, M. Höpfner, N. Kämpfer, S. Kellmann, A. Linden, S. Müller, H. Nakajima, H. Oelhaf, E. Remsberg, S. Rohs, J. M. Russell III, C. Schiller, G. P. Stiller, T. Sugita, T. Tanaka, H. Vömel, K. Walker, G. Wetzel, T. Yokota, V. Yushkov, and G. Zhang, Validation of water vapour profiles (version 13) retrieved by the IMK/IAA scientific retrieval processor based on full resolution spectra measured by MIPAS on board Envisat, Atmos. Meas. Tech., 2, 379-399, 2009.

  27. Müller, R., S. Tilmes, J.-U. Grooß, A. Engel, H. Oelhaf, G. Wetzel, N. Huret, M. Pirre, V. Catoire, G. Toon, and H. Nakajima, Impact of mesospheric intrusions on ozone-tracer relations in the stratospheric polar vortex, J. Geophys. Res., 112, D23307, doi:10.1029/2006JD008315, 2007.

  28. Nakajima, H., T. Sugita, H. Irie, N. Saitoh, H. Kanzawa, H. Oelhaf, G. Wetzel, G. C. Toon, B. Sen, J.-F. Blavier, W. A. Traub, K. Jucks, D. G. Johnson, T. Yokota, and Y. Sasano, Measurements of ClONO2 by the Improved Limb Atmospheric Spectrometer (ILAS) in high-latitude stratosphere: New products using version 6.1 data processing algorithm, J. Geophys. Res., 111, D11S09, doi:10.1029/2005JD006441, 2006.

  29. Payan, S., C. Camy-Peyret, H. Oelhaf, G. Wetzel, G. Maucher, C. Keim, M. Pirre, N. Huret, A. Engel, M. C. Volk, H. Kuellmann, J. Kuttippurath, U. Cortesi, G. Bianchini, F. Mencaraglia, P. Raspollini, G. Redaelli, C. Vigouroux, M. De Mazière, S. Mikuteit, T. Blumenstock, V. Velazco, J. Notholt, E. Mahieu, P. Duchatelet, D. Smale, S. Wood, N. Jones, C. Piccolo, V. Payne, A. Bracher, N. Glatthor, G. Stiller, K. Grunow, P. Jeseck, Y. Te, and A. Butz, Validation of version-4.61 methane and nitrous oxide observed by MIPAS, Atmos. Chem. Phys., 9, 413-442, 2009.

  30. Pettinari, P., F. Barbara, S. Ceccherini, B. M. Dinelli, M. Gai, P. Raspollini, L. Sgheri, M. Valeri, G. Wetzel, N. Zoppetti, and M. Ridolfi, Phosgene distribution derived from MIPAS ESA v8 data: intercomparisons and trends, Atmos. Meas. Tech., 14, 7959-7974, 2021.

  31. Renard, J.-B., G. Berthet, C. Brogniez, V. Catoire, D. Fussen, F. Goutail, H. Oelhaf, J.-P. Pommereau, H. K. Roscoe, G. Wetzel, M. Chartier, C. Robert, J.-Y. Balois, C. Verwaerde, F. Auriol, P. François, B. Gaubicher, and P. Wursteisen, Validation of GOMOS-Envisat vertical profiles of O3, NO2, NO3, and aerosol extinction using balloon-borne instruments and analysis of the retrievals, J. Geophys. Res., 113, A02302, doi:10.1029/2007JA012345, 2008.

  32. Ridolfi, M., U. Blum, B. Carli, V. Catoire, S. Ceccherini, H. Claude, C. De Clercq, K. H. Fricke, F. Friedl-Vallon, M. Iarlori, P. Keckhut, B. Kerridge, J.-C. Lambert, Y. J. Meijer, L. Mona, H. Oelhaf, G. Pappalardo, M. Pirre, V. Rizi, C. Robert, D. Swart, T. von Clarmann, A. Waterfall, and G. Wetzel, Geophysical validation of temperature retrieved by the ESA processor from MIPAS/ENVISAT atmospheric limb-emission measurements, Atmos. Chem. Phys., 7, 4459-4487, 2007.

  33. Sagawa, H., T. O. Sato, P. Baron, E. Dupuy, N. Livesey, J. Urban, T. von Clarmann, A. de Lange, G. Wetzel, B. J. Connor, A. Kagawa, D. Murtagh, and Y. Kasai, Comparison of SMILES ClO profiles with satellite, balloon-borne and ground-based measurements, Atmos. Meas. Tech., 6, 3325-3347, 2013.

  34. Steck, T., T. von Clarmann, H. Fischer, B. Funke, N. Glatthor, U. Grabowski, M. Höpfner, S. Kellmann, M. Kiefer, A. Linden, M. Milz, G. P. Stiller, D. Y. Wang, M. Allaart, Th. Blumenstock, P. von der Gathen, G. Hansen, F. Hase, G. Hochschild, G. Kopp, E. Kyrö, H. Oelhaf, U. Raffalski, A. Redondas Marrero, E. Remsberg, J. Russell III, K. Stebel, W. Steinbrecht, G. Wetzel, M. Yela, and G. Zhang, Bias determination and precision validation of ozone profiles from MIPAS-Envisat retrieved with the IMK-IAA processor, Atmos. Chem. Phys., 7, 3639-3662, 2007.

  35. Stowasser, M., H. Oelhaf, R. Ruhnke, A. Kleinert, G. Wetzel, F. Friedl-Vallon, W. Kouker, A. Lengel, G. Maucher, H. Nordmeyer, Th. Reddmann, and H. Fischer, The variation of short-lived NOy species around sunrise at mid-latitudes as measured by MIPAS-B and calculated by KASIMA, Geophys. Res. Lett., 30(8), 1432, doi: 10.1029/2002GL016727, 2003.

  36. Stowasser, M., H. Oelhaf, R. Ruhnke, G. Wetzel, F. Friedl-Vallon, A. Kleinert, W. Kouker, A. Lengel, G. Maucher, H. Nordmeyer, Th. Reddmann, O. Trieschmann, T. von Clarmann, H. Fischer, and M. P. Chipperfield, A characterization of the warm 1999 Arctic winter by observations and modeling: NOy partitioning and dynamics, J. Geophys. Res., 107(D19), 4376, doi: 10.1029/2001JD001217, 2002.

  37. Stowasser, M., H. Oelhaf, G. Wetzel, F. Friedl-Vallon, G. Maucher, M. Seefeldner, O. Trieschmann, T. von Clarmann, and H. Fischer, Simultaneous measurements of HDO, H2O, and CH4 with MIPAS-B: Hydrogen budget and indication of dehydration inside the polar vortex, J. Geophys. Res., 104, 19213-19226, 1999.

  38. Sugita, T., Y. Kondo, H. Nakajima, U. Schmidt, A. Engel, H. Oelhaf, and G. Wetzel, Denitrification observed inside the Arctic vortex in February 1995, J. Geophys. Res., 103, 16221-16233, 1998.

  39. Valeri, M., F. Barbara, C. Boone, S. Ceccherini, M. Gai, G. Maucher, P. Raspollini, M. Ridolfi, L. Sgheri, G. Wetzel, and N. Zoppetti, CCl4 distribution derived from MIPAS ESA V7 data: intercomparisons, trend, and lifetime estimation, Atmos. Chem. Phys., 17, 10143-10162, 2017.

  40. von Clarmann, T., G. Wetzel, H. Oelhaf, F. Friedl-Vallon, A. Linden, G. Maucher, M. Seefeldner, O. Trieschmann, and F. Lefèvre, ClONO2 vertical profile and estimated mixing ratios of ClO and HOCl in the winter Arctic stratosphere from MIPAS limb emission spectra, J. Geophys. Res., 102, 16157-16168, 1997.

  41. von Hobe, M., S. Bekki, S. Borrmann, F. Cairo, F. D’Amato, G. Di Donfrancesco, A. Dörnbrack, A. Ebersoldt, M. Ebert, C. Emde, I. Engel, M. Ern, W. Frey, S. Genco, S. Griessbach, J.-U. Grooß, T. Gulde, G. Günther, E. Hösen, L. Hoffmann, V. Homonnai, C. R. Hoyle, I. S. A. Isaksen, D. R. Jackson, I. M. Jánosi, R. L. Jones, K. Kandler, C. Kalicinsky, A. Keil, S. M. Khaykin, F. Khosrawi, R. Kivi, J. Kuttippurath, J. C. Laube, F. Lefèvre, R. Lehmann, S. Ludmann, B. P. Luo, M. Marchand, J. Meyer, V. Mitev, S. Molleker, R. Müller, H. Oelhaf, F. Olschewski, Y. Orsolini, T. Peter, K. Pfeilsticker, C. Piesch, M. C. Pitts, L. R. Poole, F. D. Pope, F. Ravegnani, M. Rex, M. Riese, T. Röckmann, B. Rognerud, A. Roiger, C. Rolf, M. L. Santee, M. Scheibe, C. Schiller, H. Schlager, M. Siciliani de Cumis, N. Sitnikov, O. A. Søvde, R. Spang, N. Spelten, F. Stordal, O. Suminska-Ebersoldt, A. Ulanovski, J. Ungermann, S. Viciani, C. M. Volk, M. vom Scheidt, P. von der Gathen, K. Walker, T. Wegner, R. Weigel, S. Weinbruch, G. Wetzel, F. G. Wienhold, I. Wohltmann, W. Woiwode, I. A. K. Young, V. Yushkov, B. Zobrist, and F. Stroh, Reconciliation of essential process parameters for an enhanced predictability of Arctic stratospheric ozone loss and its climate interactions (RECONCILE): activities and results, Atmos. Chem. Phys., 13, 9233-9268, 2013.

  42. Voss, K., P. Holzbeck, K. Pfeilsticker, R. Kleinschek, G. Wetzel, B. Fuentes Andrade, M. Höpfner, J. Ungermann, B.-M. Sinnhuber, and A. Butz, A novel, balloon-borne UV–Vis spectrometer for direct sun measurements of stratospheric bromine, Atmos. Meas. Tech., 17, 4507–4528, 2024.

  43. Waibel, A. E., Th. Peter, K. S. Carslaw, H. Oelhaf, G. Wetzel, P. J. Crutzen, U. Pöschl, A. Tsias, E. Reimer, H. Fischer, Arctic ozone loss due to denitrification, Science, 283, 2064-2068, 1999.

  44. Wang, D. Y., M. Höpfner, G. Mengistu Tsidu, G. P. Stiller, T. von Clarmann, H. Fischer, T. Blumenstock, N. Glatthor, U. Grabowski, F. Hase, S. Kellmann, A. Linden, M. Milz, H. Oelhaf, M. Schneider, T. Steck, G. Wetzel, M. López-Puertas, B. Funke, M. E. Koukouli, H. Nakajima, T. Sugita, H. Irie, J. Urban, D. Murtagh, M. L. Santee, G. Toon, M. R. Gunson, F. W. Irion, C. D. Boone, K. Walker, and P. F. Bernath, Validation of nitric acid retrieved by the IMK-IAA processor from MIPAS/ENVISAT measurements, Atmos. Chem. Phys., 7, 721-738, 2007.

  45. Wang, D. Y., M. Höpfner, C. E. Blom, W. E. Ward, H. Fischer, T. Blumenstock, F. Hase, C. Keim, G. Y. Liu, S. Mikuteit, H. Oelhaf, G. Wetzel, U. Cortesi, F. Mencaraglia, G. Bianchini, G. Redaelli, M. Pirre, V. Catoire, N. Huret, C. Vigouroux, M. De Mazière, E. Mahieu, P. Demoulin, S. Wood, D. Smale, N. Jones, H. Nakajima, T. Sugita, J. Urban, D. Murtagh, C. D. Boone, P. F. Bernath, K. A. Walker, J. Kuttippurath, A. Kleinböhl, G. Toon, and C. Piccolo, Validation of MIPAS HNO3 operational data, Atmos. Chem. Phys., 7, 4905-4934, 2007.

  46. Wiegele, A., A. Kleinert, H. Oelhaf, R. Ruhnke, G. Wetzel, F. Friedl-Vallon, A. Lengel, G. Maucher, H. Nordmeyer, and H. Fischer, Spatio-temporal variations of NOy species in the northern latitudes stratosphere measured with the balloon-borne MIPAS instrument, Atmos. Chem. Phys., 9, 1151-1163, 2009.

  47. Xu, J., F. Schreier, G. Wetzel, A. de Lange, M. Birk, T. Trautmann, A. Doicu, and G. Wagner, Performance assessment of balloon-borne trace gas sounding with the Terahertz Channel of TELIS, Remote Sens., 10, 315, 2018.

  48. Zhang, G., G. Wetzel, H. Oelhaf, F. Friedl-Vallon, A. Kleinert, A. Lengel, G. Maucher, H. Nordmeyer, K. Grunow, H. Fischer, Validation of temperature measurements from MIPAS-ENVISAT with balloon observations obtained by MIPAS-B, J. Atmos. Sol.-Terr. Phy., 72, 837–847, 2010.

  49. Zhang, G., G. Wetzel, H. Oelhaf, F. Friedl-Vallon, A. Kleinert, A. Lengel, G. Maucher, H. Nordmeyer, K. Grunow, H. Fischer, Validation of atmospheric chemistry measurements from MIPAS, SCIAMACHY, GOMOS onboard ENVISAT by observations of balloon-borne MIPAS-B, Sci. China Earth Sci., 2010, 53, 1533–1541, 2010.