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 Stratosphere And Upper Troposphere: People
Lucien  Froidevaux's Picture
Jet Propulsion Laboratory
M/S 183-701
4800 Oak Grove Drive
Pasadena, CA 91109

Lucien Froidevaux

  • Physics (magna cum laude), UCLA (1976)
  • M.S. in Earth and Planetary Sciences, Caltech (1981)
  • Ph.D. in Earth and Planetary Sciences, Caltech (1984)

Research Interests
  • Earth's atmospheric composition and chemistry (e.g., ozone, chlorine, CO).
  • Production of long-term stratospheric data sets from global satellite measurements.
  • Evaluation of global chemistry climate models using satellite-derived data sets.
  • Validation and retrievals of atmospheric composition from satellite measurements.


MLS - Microwave Limb Sounder Icon MLS - Microwave Limb Sounder
The Microwave Limb Sounder (MLS) experiments measure naturally-occurring microwave thermal emission from the limb (edge) of Earth's atmosphere to remotely sense vertical profiles of atmospheric gases, temperature, pressure, and cloud ice.

Future generations will be in need of long-term data records of atmospheric composition to better understand the atmospheric variability and trends.

Professional Experience

Jet Propulsion Laboratory

  • Principal Scientist, Stratosphere and Upper Troposphere Group
  • Earth Observing System (EOS) Microwave Limb Sounder (MLS) Deputy Principal Investigator - experiment launched in 2004
  • Upper Atmosphere Research Satellite (UARS) MLS co-investigator - experiment launched in 1991
  • National Research Council Resident Research Associate (1983-1985)

Selected Awards
  • NASA Group Achievement Awards (Aura and MLS teams) 2005
  • Editor's Citation for Excellence in Refereeing, Journal of Geophysical Research (Atmos.) (2004, 1990)
  • NASA Exceptional Achievement Medal (1997)
  • NASA Group Achievement Award (MLS Data Processing /Analysis Team) (1993)
  • NASA Group Achievement Award (UARS MLS Team) (1992)

Selected Publications
  1. Froidevaux, L., Kinnison, D. E., Wang, R., Anderson, J., and Fuller, R. A., Evaluation of CESM1 (WACCM) free-running and specified-dynamics atmospheric composition simulations using global multispecies satellite data records, Atmos. Chem. Phys., 19, 4783-4821, doi:10.5194/acp-19-4783-2019, 2019.
  2. Ball, W. T., J. Alsing, D. J. Mortlock, J. Staehelin, J. D. Haigh, T. Peter, F. Tummon, R. Stübi, Andrea Stenke, J. Anderson, A. Bourassa, S. M. Davis, D. Degenstein, S. Frith, L. Froidevaux, C. Roth, V. Sofieva, R. Wang, J. Wild, P. Yu, J. R. Ziemke, and E. V. Rozanov, Evidence for a continuous decline in lower stratospheric ozone offsetting ozone layer recovery, Atmos. Chem. Phys., 18, 1379-1394, doi:10.5194/acp-18-1379-2018, 2018.
  3. Steinbrecht, W., L. Froidevaux, R. Fuller, R. Wang, J. Anderson, C. Roth, A. Bourassa, D. Degenstein, R. Damadeo, J. Zawodny, S. Frith, R. McPeters, P. K. Bhartia, J. Wild, C. Long, S. Davis, K. Rosenlof, V. Sofieva, K. Walker, N. Rahpoe, A. Rozanov, M. Weber, A. Laeng, T. von Clarmann, G. Stiller, N. Kramarova, S. Godin-Beekmann , T. Leblanc, R. Querel, D. Swart, I. Boyd, K. Hocke, N. Kämpfer, E. Maillard Barras, L. Moreira, G. Nedoluha, C. Vigouroux, T. Blumenstock, M. Schneider, O. García, N. Jones, E. Mahieu, D. Smale, M. Kotkamp, J. Robinson, I. Petropavlovskikh, N. Harris, B. Hassler, D. Hubert, and F. Tummon, An update on ozone profile trends for the period 2000 to 2016, Atmos. Chem. Phys., 17, 10675-10690, doi:10.5194/acp-17-10675-2017, ACP, 2018.
  4. Froidevaux, L., Anderson, J., Wang, H.-J., Fuller, R. A., Schwartz, M. J., Santee, M. L., Livesey, N. J., Pumphrey, H. C., Bernath, P., Russell, J. M., and McCormick, M. P., Global OZone Chemistry And Related Datasets for the Stratosphere (GOZCARDS): methodology and sample results with a focus on HCl, H2O, and O3, Atmos. Chem. Phys., 15, 10471–10507, doi:10.5194/acp-15-10471-2015, 2015.
  5. Harris, N. R. P., Hassler, B., Tummon, F., Bodeker, G. E., Hubert, D., Petropavlovskikh, I., Steinbrecht, W., Anderson, J., Bhartia, P. K., Boone, C. D., Bourassa, A., Davis, S. M., Degenstein, D., Delcloo, A., Frith, S. M., Froidevaux, L., Godin-Beekmann, S., Jones, N., Kurylo, M. J., Kyrölä, E., Laine, M., Leblanc, S. T., Lambert, J.-C., Liley, B., Mahieu, E., Maycock, A., de Mazière, M., Parrish, A., Querel, R., Rosenlof, K. H., Roth, C., Sioris, C., Staehelin, J., Stolarski, R. S., Stübi, R., Tamminen, J., Vigouroux, C., Walker, K., Wang, H. J., Wild, J., and Zawodny, J. M.: Past changes in the vertical distribution of ozone – Part 3: Analysis and interpretation of trends, Atmos. Chem. Phys. Discuss., 15, 8565-8608, doi:10.5194/acpd-15-8565-2015, 2015.
  6. Hubert, D., Lambert, J.-C., Verhoelst, T., Granville, J., Keppens, A., Baray, J.-L., Cortesi, U., Degenstein, D. A., Froidevaux, L., Godin-Beekmann, S., Hoppel, K. W., Kyrölä, E., Leblanc, T., Lichtenberg, G., McElroy, C. T., Murtagh, D., Nakane, H., Russell III, J. M., Salvador, J., Smit, H. G. J., Stebel, K., Steinbrecht, W., Strawbridge, K. B., Stübi, R., Swart, D. P. J., Taha, G., Thompson, A. M., Urban, J., van Gijsel, J. A. E., von der Gathen, P., Walker, K. A., Wolfram, E., and Zawodny, J. M.: Ground-based assessment of the bias and long-term stability of fourteen limb and occultation ozone profile data records, Atmos. Meas. Tech. Discuss., 8, 6661-6757, doi:10.5194/amtd-8-6661-2015, 2015.
  7. Nair, P. J., L. Froidevaux, J. Kuttippurath, J. M. Zawodny, J. M. RussellIII, W. Steinbrecht, H. Claude, T. Leblanc, J. A. E.van Gijsel, B. Johnson, D. P. J. Swart, A. Thomas, R. Querel, R. Wang, and J. Anderson (2015), Subtropical and midlatitude ozone trends in the stratosphere: Implications for recovery. J. Geophys. Res. Atmos., 120, 7247–7257. doi: 10.1002/2014JD022371.
  8. Prather, M. J., J. Hsu, N. M. DeLuca, C. H. Jackman, L. D. Oman, A. R. Douglass, E. L. Fleming, S. E. Strahan, S. D. Steenrod, O. A. Søvde, I. S. A. Isaksen, L. Froidevaux, and B. Funke (2015), Measuring and modeling the lifetime of nitrous oxide including its variability. J. Geophys. Res. Atmos., 120, 5693–5705. doi: 10.1002/2015JD023267.
  9. Hegglin, M.I., D.A. Plummer, T.G. Shepherd, J.F. Scinocca, J. Anderson, L. Froidevaux, B. Funke, D. Hurst, A. Rozanov, J. Urban, T. von Clarmann, K.A. Walker, H.J. Wang, S. Tegtmeier, and K. Weigel, "Vertical structure of stratospheric water vapour trends derived from merged satellite data," Nature Geoscience 7, doi:10.1038/ngeo2236, 2014.
  10. Mahieu, E., M.P. Chipperfield, J. Notholt, T. Reddmann, J. Anderson, P.F. Bernath, T. Blumenstock, M.T. Coffey, S.S. Dhomse, W. Feng, B. Franco, L. Froidevaux, D. Griffith, J.W. Hannigan, F. Hase, R. Hossaini, N.B. Jones, I. Morino, I. Murata, H. Nakajima, M. Palm, C. Paton-Walsh, J.M. Russell III, M. Schneider, C. Servais, D. Smale, and K.A. Walker, "Recent Northern Hemisphere stratospheric HCl increase due to atmospheric circulation changes," Nature 515, 104-107, doi:10.1038/nature13857, 2014.
  11. Schwartz, M.J., W.J. Read, M.L. Santee, N.J. Livesey, L. Froidevaux, A. Lambert, and G.L. Manney, "Convectively Injected Water Vapor in the North American Summer Lowermost Stratosphere," Geophys. Res. Lett. 40, 10, 2316–2321, doi:10.1002/grl.50421, 2013.
  12. Santee, M.L., S.P. Sander, N.J. Livesey, and L. Froidevaux, "Constraining the chlorine monoxide (ClO) / chlorine peroxide (ClOOCl) equilibrium constant from Aura Microwave Limb Sounder measurements of nighttime ClO," Proc. Nat. Acad. Sci. 107, 15, 6588-6593, doi:10.1073/pnas.0912659107, 2010.
  13. Gebhardt, C., Rozanov, A., Hommel, R., Weber, M., Bovensmann, H., Burrows, J. P., Degenstein, D., Froidevaux, L., and Thompson, A. M.: Stratospheric ozone trends and variability as seen by SCIAMACHY from 2002 to 2012, Atmos. Chem. Phys., 14, 831–846, doi:10.5194/acp-14-831-2014, 2014.
  14. Theys, N., Smedt, I. D., van Roozendael, M., Froidevaux, L., Clarisse, L., and Hendrick, F., First satellite detection of volcanic OClO after the eruption of Puyehue-Cordon Caulle, Geophys. Res. Lett., 41, 667-672, doi:10.1002/2013GL058416, 2014.
  15. Hegglin, M. I., Tegtmeier, S., Anderson, J., Froidevaux, L., Fuller, R., Funke, B., Jones, A., Lingenfelser, G., Lumpe, J., Pendlebury, D., Remsberg, E., Rozanov, A., Toohey, M., Urban, J., von Clarmann, T., Walker, K. A., Wang, R., and Weigel, K.: SPARC Data Initiative: Comparison of water vapor climatologies from international satellite limb sounders, J. Geophys. Res. Atmos., 118, 11,824–11,846, doi: 10.1002/jgrd.50752, 2013.
  16. Khosravi, M., Baron, P.,Urban, J., Froidevaux, L., Jonsson, A. I., Kasai, Y., Kuribayashi, K., Mitsuda, C., Murtagh, D. P., Sagaw, H., Santee, M. L., Sato, T. O., Shiotani, M., Suzuki, M., von Clarmann, T., Walkr, K. A., and Wang, S., Diurnal variation of stratospheric and lower mesospheric HOCl, ClO, and HO2 at the equator: comparison of 1-D model calculations with measurements by satellite instruments, Atmos. Chem. Phys., 13, 7587-7606, 2013.
  17. Livesey, N. J., Logan, J. A., Santee, M. L., Waters, J. W., Doherty, R. M., Read, W. G., Froidevaux, L., and Jiang, J. H., Interrelated variations of O3, CO and deep convection in the tropical/subtropical upper troposphere observed by the Aura Microwave Limb Sounder MLS during 2004-2011, Atmos. Chem. Phys., 13, 579-598, doi:10.5194/acp-13-579-2013, 2013.
  18. Tegtmeier, S., Hegglin, M. I., And­erson, J., Bourassa, A., Brohede, S., Degenstein, D.,  Froidevaux, L., Fuller, R., Funke, B., Gille, J., Jones, A., Kasai, Y., Krüger, K., Kyrölä, E.,  Lingenfelser, G., Lumpe, J., Nardi, B., Neu, J., Pendlebury, D., Remsberg, E., Rozanov, A., Smith, L., Toohey, M., Urban, J., von Clarmann, T., Walker, K. A., and Wang, H. J.: The SPARC Data Initiative: A comparison of ozone climatologies from international satellite limb sounders, J. Geophys. Res. Atmos., 118, 12,229–12,247, doi: 10.1002/2013JD019877, 2013.
  19. Manney, G., L., Santee, M. L., Rex, M., Livesey, N. J., Pitts, M. C., Veefkind, P., Nash, R. R., Wohltmann, I., Lehmann, R., Froidevaux, L., Poole, L. R., Schoeberl, M. R., Haffner, D. P., Davies, J., Dorokhov, V., Gernandt, H., Johnson, B., Kivi, R., Kyrölä, E., Larsen, N., Levelt, P. F., Makshtas, A., McElroy, C. T., Nakajima, H., Parrondo, M. C., Tarasick, D. W., von der Gathen, P., Walker, P. K. A., and Zinoviev, N. S.: Unprecedented Arctic ozone loss in 2011, Nature, 478, 469–475, doi:10.1038/nature10556, 2011.
  20. Froidevaux, L., et al., Validation of Aura Microwave Limb Sounder HCl measurements, J. Geophys. Res., 113, D15S25, doi:10.1029/2007JD009025, 2008.
  21. Froidevaux, L., et al., Validation of Aura Microwave Limb Sounder stratospheric ozone measurements, J. Geophys. Res., 113, D15S20, doi:10.1029/2007JD008771, 2008.
  22. Froidevaux, L., Livesey, N.J., Read, W.G., Salawitch, R.J., Waters, J.W., Drouin, B., MacKenzie, I.A., Pumphrey, H.C., Bernath, P., Boone, C., Nassar, R., Montzka, S., Elkins, J., Cunold, D., and Waugh, D., Temporal decrease in upper atmospheric chlorine, Geophys. Res. Lett., 10.1029/2006GL027600, 2006.
  23. Froidevaux, L., Livesey, N.J., Read, W. G., Jiang, Y. B., Jimenez, C., Filipiak, M. J., Schwartz, M. J., Santee, M. L., Pumphrey, H. C., Jiang, J. H., Wu, D. L., Manney, G. L., Drouin, B. J., Waters, J.W., Fetzer, E. J., Bernath, P. F., Boone, C. D.  Walker, K. A., Jucks, K. W., Toon, G.C., Margitan, J.J., Sen, B., Webster, C.R., Christensen, L.E., Elkins, J.W., Atlas, E., Lueb, R. A., and Hendershot, R.,, Early validation analyses of atmospheric profiles from EOS MLS on the Aura satellite, IEEE Transactions on Geoscience and Remote Sensing, Vol. 44, No. 5, May 2006.
  24. Waters, J.W., Froidevaux, L., Harwood, R. S., Jarnot, R. F., Pickett, H. M., Read, W. G., Siegel, P. H., Cofield, R. E., Filipiak, M. J., Flower, D. A., Holden, J. R., Lau, G. K., Livesey, N.J., Manney, G. L., Pumphrey, H. C., Santee, M. L., Wu, D. L., Cuddy, D. T., Lay, R. R., Loo, M. S., Perun, V. S., Schwartz, M. J., Stek, P. C., Thurstans, R. P., Boyles, M. A., Chandra, K. M., Chavez, M. C., Chen, C.-S., Chudasama, B. V., Dodge, R., Fuller, R. A., Girard, M. A., Jiang, J. H., Jiang, Y., Knosp, B. W., LaBelle, R. C., Lam, J. C., Lee, K. A., Miller, D., Oswald, J. E., Patel, N. C., Pukala, D. M., Quintero, O., Scaff, D. M., Van Snyder, W., Tope, M. C., Wagner, P. A., and Walch, M. J., The Earth Observing System Microwave Limb Sounder (EOS MLS) on the Aura satellite, IEEE Transactions on Geoscience and Remote Sensing, Vol. 44, No. 5, May 2006.
  25. Manney, G. L., Santee, M. L., Froidevaux, L., Hoppel, K., Livesey, N.J., and Waters, J.W., EOS MLS observations of ozone loss in the 2004-2005 Arctic winter, Geophys. Res. Lett., 33, L04892,doi:10.1029/2005GL024494, 16 Feb. 2006.
  26. Santee, M. L., Manney, G.L., Livesey, N.J., Froidevaux, L., Pumphrey, H.C, Read, W.G., Schwartz, M.J., and Waters, J.W., Polar processing and development of the 2004 Antarctic ozone hole: First results from Aura MLS, Geophys. Res. Lett., 32, L12817, doi:1029/2005GL022582, 28 June 2005.
  27. Manney, G. L., Froidevaux, L., Santee, M. L., Livesey, N.J., Sabutis, J. L., and Waters, J.W., Variability of ozone loss during Arctic winter (1991 to 2000) estimated from UARS MLS measurements, J. Geophys. Res., 108, 10.1029/2002JD002634, Feb. 2003.
  28. Livesey, N.J., Read, W. G., Froidevaux, L., Waters, J.W., Pumphrey, H. C., Wu, D. L., Santee, M. L., Shippony, Z.,  and Jarnot, R. F., The UARS MLS Version 5 dataset: Theory, characterization and validation, J. Geophys. Res., 108, 10.1029/2002JD002273, 2003.
  29. Froidevaux, L., Waters, J.W., Read, W.G., Connell, P.S., Kinnison, D.E., and J.Russell III, M., Variations in the free chlorine content of the stratosphere (1991-1997): Anthropogenic, volcanic, and methane influences, J. Geophys. Res., 105, 4471-4481, 2000.
  30. Santee, M.L., Manney, G.L., Froidevaux, L., Read, W.G., Waters, J.W., Six years of UARS Microwave Limb Sounder HNO3 observations: Seasonal, interhemispheric, interannual variations in the lower stratosphere, J. Geophys. Res., 104, 8225-8246, 1999.
  31. Siskind, D.E., Froidevaux, L., Russell, J.M., Lean, Implications of upper stratospheric trace constituent changes observed by HALOE for O3 and ClO from 1992 -1995, J. Geophys. Res. Lett., 25, 3513-3516, 1998.
  32. Froidevaux, L., Read, W. G., Lungu, T. A., Cofield, R. E., Fishbein, E.F., Flower, D. A., Jarnot, R. F., Ridenoure, B.P., Shippony, Z., , Waters, J.W., Margitan, J.J., McDermid, I.S., Stachnik, R.A., Peckham, G.E., Braathen, G., Deshler, T., Fishman, J., Hofmann, D.J., and Oltmans, S.J., Validation of UARS MLS ozone measurements, J. Geophys. Res., 101, 10017-10060, 1996.
  33. Froidevaux, L., Waters, J.W., Read, W.G., Elson, L.S., Flower, D.A., and Jarnot, R.F., Global Ozone Observations from UARS MLS: An Overview of Zonal Mean Results, J. Atmos. Sci., Vol. 51, No. 20, 2846-2866, 1994.
  34. Manney, G.L., Froidevaux, L., Waters, J.W., Zurek, R.W., Read, W.G., Elson, L.S., Kumer, J.B., Mergenthaler, J.L., Roche, A.E., O’Neill, A., and Swinbank, R., Chemical Depletion of Lower Stratospheric Ozone in 1992-1993 Northern Winter Vortex, Nature, 370, 429-434, 1994.
  35. Waters, J.W., Froidevaux, L., Read, W.G., Manney, G.L., Elson, L.S., Flower, D.A., Jarnot, R.F., and Harwood, R.S., Stratospheric ClO and Ozone from the Microwave Limb Sounder on the Upper Atmosphere Research Satellite, Nature, 362, 597-602, 1993.
  36. Froidevaux, L., Allen, M., Berman, S., and Daughton, A.,Analysis of LIMS observations in the upper stratosphere and lower mesosphere. I. The mean O3 profile and its temperature sensitivity at mid-latitudes in May, 1979, J. Geophys. Res., 94, 6389-6417, 1989.
  37. Froidevaux, L., Allen, M., and Yung, Y.L., A critical analysis of ClO and O3 in the mid-latitude stratosphere, J. Geophys. Res., 90, 12999-13029, 1985.
  38. Froidevaux, L. and Yung, Y.L., Radiation and chemistry in the stratosphere: Sensitivity to O2 absorption cross sections in the Herzberg continuum, Geophys. Res. Lett., 9, 854-857, 1982.

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