Corinna KLOSS


Upper Troposphere and Lower Stratosphere, Aerosols, Volcanic eruptions, Extreme Fire Events, Asian Monsoon Anticyclone, Radiative Impact

Short description of my Past work

Throughout my career I developed expertise in the lab and analysis of observations with the goal of a better understanding of the processes governing stratospheric compounds (gases and aerosols) and their role in the climate. By analyzing flask samples, new ozone depleting substances with resulting emissions, which are not conform with the Montreal agreement, were discovered in my early career. I developed a spectrometer ‘AMICA’ for high-altitude airborne trace gas measurements (CO, OCS, H2O). With AMICA, I was involved throughout the whole phase of the EU project StratoClim, for an improved understanding of the role of the Asian monsoon (AM) on the composition of the upper troposphere/lower stratosphere. With satellite, ground-based and airborne in situ observations, I investigated aerosol and trace gas anomalies in the AM anticyclone. Furthermore, I studied the stratospheric evolution and impact of plumes from recent volcanic eruptions and extreme wildfires, raising awareness of the new discovered importance of the role that major wildfires play for the Earth’s climate, the motivation for the proposed project.

My CV  (Jan 2022)

The Hunga Tonga eruption – Balloon Campaign

On the 15th and 16th of January 2022 the Hunga Tonga volcano erupted, injecting aerosols and a variety of chemical compounds into particularly high altitudes of up to 30 km (see preliminary Figures, showing OMPS aerosol extinction profiles during the second eruption on January 16th 2022). Later on, the injected plume was observed at altitudes of up to 40 km. Forward trajectories and satellite observations showed that the plume would pass over La Réunion. Within the atmospheric team at LPC2E we directly managed to set up a small campaign at La Réunion at the ‘observatoire de l’atmosphère du maido’ (21.08°S 55.38°E, in cooperation with LACY, Nelson Bègue). A spontaneous LABEX project was created for the funding of travel expenses for this campaign and directly accepted. A LPC2E technician and myself (as the LPC2E research PI of this campaign) travelled spontaneously to La Réunion to sample the plume with the Light Optical Aerosol Counter (LOAC) during three measurement flights on small sized balloons (23/1, 25/1 and 26/1/2022). LOAC measures aerosol size distribution between 200 nm and 30 μm, concentration and gives some indication about the typology of the measured particles. Simultaneous aerosol, wind and ozone lidar observations at the observatory will be analyzed and compared with LOAC observations.

OMPS aerosol extinction profiles during the injection of the Hunga Tonga plume (16th of Jan. 2022)
OMPS aerosol extinction profiles during the injection of the Hunga Tonga plume (16th of Jan. 2022).

During all three flights we observe enhanced aerosol concentrations within the stratospheric Hunga Tonga plume. Furthermore, the LOAC typology analysis points to a layer of absorbing and semi-transparent aerosols.

A 4th LOAC measurement flight was planned for 3/2/2022 (to sample the Hunga Tonga plume, reaching La Réunion a second time after circling the Earth). A tropical cyclone cancelled those plans and we travelled back to France. We left one functional LOAC with the now trained staff at La Réunion, ready for one more flight (possibly within the coming weeks to sample the more diluted plume).

Within the SSiRC volcano emailing list, more than 100 emails were exchanged discussion the extraordinary nature of this event. At multiple occasions, the issue of very limited in situ observations within this plume (to my knowledge only one more team has performed in situ measurements within the Hunga Tonga plume so far) was mentioned.

The fast coordination of the scientific expertise and administrative efforts at LPC2E demonstrate that the establishment of LOAC measurements around the world within aerosol plumes from extreme events are spontaneously feasible also for future aerosol plume events.

LOAC balloon flight (photo at Maido La Réunion)
LOAC balloon flight (at Maido La Réunion).

L’Observatoire de l’Atmosphère du Maido, at La Réunion.

Sunset at the observatory at Maido, La Réunion.


  1. Kloss C. et al.‚ ‘Atmospheric Abundances, Trends and Emissions of CFC-216ba, CFC-216ca and HCFC-225ca ‘, atmosphere (2014)
  2. Lennartz et al. ‘Direct oceanic emissions unlikely to account for the missing source of atmospheric carbonyl sulfide’, Atmospheric Chemistry and Physics (2017)
  3. Kloss C. ‚ ‘Carbonyl Sulfide in the Stratosphere: airborne instrument development and satellite based data analysis’, ISBN: 978-3-95806-276-4, Ph.D. Dissertation (2017)
  4. Kloss C. et al., ‘Sampling bias adjustment for sparsely sampled satellite measurements applied to ACE-FTS carbonyl sulfide observations ‘, Atmospheric Measurement Techniques (2019)
  5. Kloss C. et al., ‘Transport of the 2017 Canadian wildfire plume to the tropics and global stratosphere via the Asian monsoon circulation ‘, Atmospheric Chemistry and Physics (2019)
  6. Kloss C. et al., ‘Impact of the 2018 Ambae eruption on the global stratospheric aerosol layer and climate’, Journal of Geophysical Research (2020)
  7. Kloss et al., ‘Stratospheric aerosol layer perturbation caused by the 2019 Raikoke and Ulawun eruptions and climate impact’, Atmospheric Chemistry and Physics (2021), highlight paper in ACP
  8. Von Hobe M. et al. ‘Transport pathways in the Asian monsoon UTLS inferred from (StratoClim) trace gas observations’, Atmospheric Chemistry and Physics (2021)
  9. Keun-Ok L. et al., ‘Convective uplift of pollution from the Sichuan basin into the Asian monsoon anticyclone during the StratoClim aircraft campaign’, Atmospheric Chemistry and Physics Discussion (2021)
  10. Bossolasco A. et al., ‘Global modelling studies of composition and decadal trends of the Asian Tropopause Aerosol Layer’, Atmospheric Chemistry and Physics Discussion (2021)
  11. Kloss C., et al., ‘Australian fires 2019-2020: tropospheric and stratospheric pollution throughout the whole fire season’, Frontiers in Environmental Science (2021)
  12. Kloss C. et al., ‘The airborne Mid-Infrared Cavity enhanced Absorption spectrometer (AMICA): A two channel ICOS instrument’, Atmospheric Measurement Techniques (2021)
  13. Bègue N., et al., ‘Transport and Variability of Tropospheric Ozone over Oceania and Southern Pacific during the 2019–20 Australian Bushfires’, MDPI remote sensing (2021)
  14. Tidiga M., et al., ‘Variability of the aerosol content in the tropical lower stratosphere from 2013 to 2019: evidence of volcanic eruption impacts’, atmosphere (2022)


    Enseignant chercheur à l’Université d’Orléans (IUT) et au LPC2E, je travaille sur les relations Soleil-Terre avec trois principaux domaines d’études:

    • la variabilité de l’irradiance solaire
    • les éruptions solaires
    • le vent solaire

    Je suis en particulier responsable du capteur de champ magnétique alternatif SCM sur la mission de l’ESA Solar Orbiter, dont le lancement est prévu en 2020.


    Dr Gisèle Krysztofiak-Tong

    Enseignant Chercheur

    Thèse obtenue en 2013 à l’Université d’Orléans

    Chimie atmosphérique par mesure des gaz traces de l’atmosphère et modélisation


    Le LPC2E développe ses instruments afin de suivre dans la troposphère et la stratosphère les gaz traces tels que CO, H2O, N2O, NO2, CH4

    Des campagnes de mesures sont organisées où ces instruments sont embarqués soit sous ballons, soit à bord d’avions de recherches.

    Les objectifs de la campagne sont définis et peuvent être variés comme les vols à but technologique (test d’instruments), mesure de la pollution urbaine ou provenant de panache de feux de forêt, échantillonnage du bassin méditerranéen, suivi de la concentration d’une espèce, validation de satellites …

    Les modèles atmosphériques sont à la fois utilisés en pré-campagne afin de bien planifier les vols ou en post-campagne afin d’effectuer l’analyse scientifique du vol.

    Suivi des panaches de pollution dans l’atmosphère:

    NO2 mesuré et modélisé autour de la plateforme pétrolière au niveau des côtes du Ghana pendant la campagne de mesure DACCIWA

    Détection de masses d’air convectives dans la haute troposphère

    Mesure de CO par SPIRIT dans la convection et en dehors pendant la campagne de mesure SHIVA.

    Maitre de Conférence depuis 2014

    A l’Observatoire des sciences de l’Univers en Région Centre: OSUC

    Master 1 Risques & Environnement:
    • Expérimentation numérique et modélisation

    A l’IUT de Chimie d’Orléans

    1ére année:
    • Spectrométrie UV-visible, Infra-Rouge et d’absorption atomique
    • Projet tutoré
    2éme année:
    • Expérimentation pratique en chimie analytique
    • Chimiométrie
    • Électrochimie
    Licence professionnelle: Chimie Analytique, Contrôle, Qualité, Environnement : Analyse pour la chimie industrielle, cosmétique et
    • Expérimentation pratique en chimie analytique
    • Chimiométrie
    • Validation de méthode en chimie analytique


    Brocchi, V., Krysztofiak, G., Deroubaix, A., Stratmann, G., Sauer, D., Schlager, H., Deetz, K., Dayma, G., Robert, C., Chevrier, S., and Catoire, V.: Local air pollution from oil rig emissions observed during the airborne DACCIWA campaign, Atmos. Chem. Phys., 19, 11401–11411,, 2019.


    Krysztofiak, G, Catoire, V, Hamer, PD, et al. Evidence of convective transport in tropical West Pacific region during SHIVA experiment. Atmos. Sci. Lett. 2018;19:e798., 2018

    Brocchi, V., Krysztofiak, G., Catoire, V., Guth, J., Marécal, V., Zbinden, R., El Amraoui, L., Dulac, F., and Ricaud, P.: Intercontinental transport of biomass burning pollutants over the Mediterranean Basin during the summer 2014 ChArMEx-GLAM airborne campaign, Atmos. Chem. Phys., 18, 6887-6906,, 2018.


    Glatthor, N., Höpfner, M., Leyser, A., Stiller, G. P., von Clarmann, T., Grabowski, U., Kellmann, S., Linden, A., Sinnhuber, B.-M., Krysztofiak, G., and Walker, K. A.: Global carbonyl sulfide (OCS) measured by MIPAS/Envisat during 2002–2012, Atmos. Chem. Phys., 17, 2631-2652, doi:10.5194/acp-17-2631-2017, 2017.

    Berthet, G., Jégou, F., Catoire, V., Krysztofiak, G., Renard, J.-B., Bourassa, A. E., Degenstein, D. A., Brogniez, C., Dorf, M., Kreycy, S., Pfeilsticker, K., Werner, B., Lefèvre, F., Roberts, T. J., Lurton, T., Vignelles, D., Bègue, N., Bourgeois, Q., Daugeron, D., Chartier, M., Robert, C., Gaubicher, B., and Guimbaud, C.: Impact of a moderate volcanic eruption on chemistry in the lower stratosphere: balloon-borne observations and model calculations, Atmos. Chem. Phys., 17, 2229-2253, doi:10.5194/acp-17-2229-2017, 2017.

    Falk, S., Sinnhuber, B.-M., Krysztofiak, G., Jöckel, P., Graf, P., and Lennartz, S. T.: Brominated VSLS and their influence on ozone under a changing climate, Atmos. Chem. Phys., 17, 11313-11329,, 2017.

    Ricaud, P., Zbinden, R., Catoire, V., Brocchi, V., Dulac, F., Hamonou, E., Canonici, J.-C., El Amraoui, L., Massart, S., Piguet, B., Dayan, U., Nabat, P., Sciare, J., Ramonet, M., Delmotte, M., di Sarra, A., Sferlazzo, D., di Iorio, T., Piacentino, S., Cristofanelli, P., Mihalopoulos, N., Kouvarakis, G., Pikridas, M., Savvides, C., Mamouri, R.-E., Nisantzi, A., Hadjimitsis, D., Attié, J.-L., Ferré, H., Kangah, Y., Jaidan, N., Guth, J., Jacquet, P., Chevrier, S., Robert, C., Bourdon, A., Bourdinot, J.-F., Etienne, J.-C., Krysztofiak, G., and Theron, P. The GLAM airborne campaign across the Mediterranean Basin. Bull. Amer. Meteor. Soc., 2017

    Catoire, V., C. Robert, M. Chartier, P. Jacquet, C. Guimbaud, G. Krysztofiak, The SPIRIT airborne instrument: a three-channel infrared absorption spectrometer with quantum cascade lasers for in-situ atmospheric trace-gas measurements, Applied Physics B, 123:244, 05 September, doi:10.1007/s00340-017-6820-x, 2017


    Hossaini, R., Patra, P. K., Leeson, A. A., Krysztofiak, G., Abraham, N. L., Andrews, S. J., Archibald, A. T., Aschmann, J., Atlas, E. L., Belikov, D. A., Bönisch, H., Carpenter, L. J., Dhomse, S., Dorf, M., Engel, A., Feng, W., Fuhlbrügge, S., Griffiths, P. T., Harris, N. R. P., Hommel, R., Keber, T., Krüger, K., Lennartz, S. T., Maksyutov, S., Mantle, H., Mills, G. P., Miller, B., Montzka, S. A., Moore, F., Navarro, M. A., Oram, D. E., Pfeilsticker, K., Pyle, J. A., Quack, B., Robinson, A. D., Saikawa, E., Saiz-Lopez, A., Sala, S., Sinnhuber, B.-M., Taguchi, S., Tegtmeier, S., Lidster, R. T., Wilson, C., and Ziska, F.: A multi-model intercomparison of halogenated very short-lived substances (TransCom-VSLS): linking oceanic emissions and tropospheric transport for a reconciled estimate of the stratospheric source gas injection of bromine, Atmos. Chem. Phys., 16, 9163-9187, doi:10.5194/acp-16-9163-2016, 2016.


    Lennartz S.T., G. Krysztofiak, M. Marandino, B.-M. Sinnhuber, S. Tegtmeier, F. Ziska, R. Hossaini, K. Krüger, S. A. Montzka, E. Atlas, D. Oram, T. Keber, H. Bönisch, and B. Quack: Modelling marine emissions and atmospheric distributions of halocarbons and DMS: the influence of prescribed water concentration vs. prescribed emissions, Atmos. Chem. Phys., 15, 11753-11772, doi:10.5194/acp-15-11753-2015, 2015.

    Glatthor, N., M. Höpfner, I.T. Baker, J. Berry, J. E. Campbell, S.R. Kawa, G. Krysztofiak, A. Leyser, B.-M. Sinnhuber, G. P. Stiller, J. Stinecipher, and T. von Clarmann: Tropical sink of carbonyl sulfide observed from space. Geophys. Res. Lett., 42, doi:10.1002/2015GL066293, 2015.


    G. Krysztofiak, V. Catoire, Y. Té, F. Jégou, G. Berthet, G. C. Toon, F. Jégou, P. Jeseck and C. Robert, Carbonyl sulphide (OCS) variability with latitude in the atmosphere, Atmosphere-Ocean, QOS special issue, 53, 1-13, doi:10.1080/07055900.2013.876609, 2014


    Jégou, G. Berthet, C. Brogniez, J.-B. Renard, P. François, J.M. Haywood, A. Jones, Q. Bourgeois, T. Lurton, F. Auriol, S. Godin-Beekmann, C. Guimbaud, G. Krysztofiak, B. Gaubicher, M. Chartier, C. Lieven, C. Clerbaux, J.Y. Balois, and C. Verwaerde, Stratospheric aerosols from the Sarychev volcano eruption in the 2009 Arctic summer. Atmospheric Chemistry and Physics 13, 6533–6552, 2013, 2013.


    Marécal, M. Pirre, G. Krysztofiak, P.D. Hamer, B. Josse, What do we learn on bromoform transport and chemistry in deep convection from fine scale modelling?, Atmospheric Chemistry and Physics, 12, 6073-6093, 2012.

    Krysztofiak, V. Catoire, G. Poulet, V. Marécal, M. Pirre, F. Louis, S. Canneaux, B. Josse, Detailed modeling of the atmospheric degradation mechanism of brominated very-short lived species, Atmospheric Environment, 59, 514-532, 2012.

    Krysztofiak, R. Thiéblemont, N. Huret, V. Catoire, Y. Té, F. Jégou, P. F. Coheur, C. Clerbaux, S. Payan, M.A. Drouin, C.Robert, P. Jeseck, J.L. Attié, C. Camy-Peyret, Detection in the summer polar stratosphere of air plume pollution from East Asia and North America by balloon-borne in situ CO measurements, Atmospheric Chemistry and Physics, 12, 11889–11906, 2012, 2012.


    Bartels-Rausch, G. Krysztofiak, A. Bernhard, M. Schläppi, M. Schwikowski, M. Amman, Photoinduced reduction of divalent mercury in ice by organic matter, Chemosphere, 82, 199-203, 2011.