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 Laboratory Studies And Atmospheric Observations (329H): People
Thierry  Leblanc's Picture
Jet Propulsion Laboratory
4800 Oak Grove Drive
Pasadena, CA 91109
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Thierry Leblanc
Group Supervisor

Thierry Leblanc is an atmospheric scientist and is currently the Principal Investigator for the JPL atmospheric lidar measurement programs initiated at the JPL Table Mountain Facility (CA )in the late 1980s. His research interests are centered on lidar-based observations of the composition and dynamics of Earth's atmosphere. Most of his work has focused on the differential absorption lidar (DIAL) and Raman lidar measurements performed at the JPL Table Mountian Facility in California since 1989 and the Mauna Loa Observatory in Hawaii since 1993. He is responsible for all lidar raw data processing and retrieval algorithms which convert the raw observations of laser light backscattered by the atmosphere into vertical profiles of ozone, temperature, water vapor, and aerosols. He also is responsible for all surface and balloon-borne measurements performed in support of the lidar observation program, i.e., surface ozone, ozonesoundings, PTU radiosoundings, and Frost-Point Hygrometer sondes.

  • Ph.D., Atmospheric Physics, Univ. Pierre et Marie Curie (UPMC), Paris, France (1995)
  • M.S., Applied Physics, UPMC, Paris France (1990)
  • B.S., Physics, UPMC, Paris, France (1989)

Research Interests
  • Atmospheric ozone and temperature variability from synoptic to decadal scales
  • Coupling of the dynamics and chemistry in the UT/LS region
  • Water Vapor in the UT/LS region
  • Transport processes in the UT/LS region
  • Long-term trends of ozone, temperature, and water vapor
  • QBO and ENSO signatures of ozone, temperature, and water vapor
  • Lidar instrument algorithms: Development and optimization

Professional Experience
  • Jet Propulsion Laboratory (1996-Present)
    • Research Scientist, Atmospheric Lidar Group (1999-Present)
    • JPL-Caltech Postdoctoral fellow (1998)
    • National Research Council Resident Research Associate (1996-1997)

Selected Awards
  • NASA Group Acheivement Award: GLOPAC Mission (2011)
  • 25th International Laser-radar Conference (ILRC) Best Paper Award (2010)
  • NASA Group Achievement Award: NO2 and MOHAVE-2 Campaigns (2009)
  • NASA Space Act Award: Water Vapor Raman Lidar (2009)
  • National Research Council Postdoctoral Fellowship (1996-1998)

Selected Publications
  1. Eckert, E., von Clarmann, T., Kiefer, M., Stiller, G. P., Lossow, S., Glatthor, N., Degenstein, D. A., Froidevaux, L., Godin-Beekmann, S., Leblanc, T., McDermid, S., Pastel, M., Steinbrecht, W., Swart, D. P. J., Walker, K. A., and Bernath, P. F.: Drift-corrected trends and periodic variations in MIPAS IMK/IAA ozone measurements, Atmos. Chem. Phys., 14, 2571-2589, 10.5194/acp-14-2571-2014, 2014.
  2. Kirgis, G., Leblanc, T., McDermid, I. S., and Walsh, T. D.: Stratospheric ozone interannual variability (1995-2011) as observed by lidar and satellite at Mauna Loa Observatory, HI and Table Mountain Facility, CA, Atmos. Chem. Phys., 13, 5033-5047, 10.5194/acp-13-5033-2013, 2013
  3. Leblanc, T., I. S. McDermid, and T. D. Walsh, Ground-based water vapor Raman lidar measurements up to the upper troposphere and lower stratosphere for long-term monitoring, Atmos. Meas. Tech., 5(1), 17-36, 2012
  4. Cooper, O. R., Gao, R. S., Tarasick, D., Leblanc, T., and Sweeney, C.: Long-term ozone trends at rural ozone monitoring sites across the United States, 1990-2010, J. Geophys. Res.117, D2230710.1029/2012jd018261, 2012
  5. David, C., Haefele, A., Keckhut, P., Marchand, M., Jumelet, J., Leblanc, T., Cenac, C., Laqui, C., Porteneuve, J., Haeffelin, M., Courcoux, Y., Snels, M., Viterbini, M., and Quatrevalet, M.: Evaluation of stratospheric ozone, temperature, and aerosol profiles from the LOANA lidar in Antarctica, Polar Sci., 6, 209-225, 10.1016/j.polar.2012.07.001, 2012
  6. Garcia-Comas, M., Funke, B., Lopez-Puertas, M., Bermejo-Pantaleon, D., Glatthor, N., von Clarmann, T., Stiller, G., Grabowski, U., Boone, C. D., French, W. J. R., Leblanc, T., Lopez-Gonzalez, M. J., and Schwartz, M. J.: On the quality of MIPAS kinetic temperature in the middle atmosphere, Atmos. Chem. Phys., 12, 6009-6039, 10.5194/acp-12-6009-2012, 2012
  7. Nair, P. J., Godin-Beekmann, S., Froidevaux, L., Flynn, L. E., Zawodny, J. M., Russell Iii, J. M., Pazmiño, A., Ancellet, G., Steinbrecht, W., Claude, H., Leblanc, T., McDermid, S., van Gijsel, J. A. E., Johnson, B., Thomas, A., Hubert, D., Lambert, J. C., Nakane, H., and Swart, D. P. J.: Relative drifts and stability of satellite and ground-based stratospheric ozone profiles at NDACC lidar stations, Atmos. Meas. Tech.5, 1301-1318, 10.5194/amt-5-1301-2012, 2012
  8. Stiller, G. P., Kiefer, M., Eckert, E., von Clarmann, T., Kellmann, S., Garcia-Comas, M., Funke, B., Leblanc, T., Fetzer, E., Froidevaux, L., Gomez, M., Hall, E., Hurst, D., Jordan, A., Kampfer, N., Lambert, A., McDermid, I. S., McGee, T., Miloshevich, L., Nedoluha, G., Read, W., Schneider, M., Schwartz, M., Straub, C., Toon, G., Twigg, L. W., Walker, K., and Whiteman, D. N.: Validation of MIPAS IMK/IAA temperature, water vapor, and ozone profiles with MOHAVE-2009 campaign measurements, Atmos. Meas. Tech.5, 289-320, 10.5194/amt-5-289-2012, 2012
  9. Leblanc, T., et al., Measurements of Humidity in the Atmosphere and Validation Experiments (MOHAVE)-2009: overview of campaign operations and results, Atmos. Meas. Tech., 4(12), 2579-2605, 2011
  10. Leblanc, T., and I. S. McDermid, Reply to "Comments on Accuracy of Raman lidar water vapor calibration and its applicability to long-term measurements" by Whiteman et al, Appl. Opt., 50(15), 2177-2178, 2011
  11. Cooper, O. R., Parrish, D. D., Stohl, A., Trainer, M., Nedelec, P., Thouret, V., Cammas, J. P., Oltmans, S. J., Johnson, B. J., Tarasick, D., Leblanc, T., McDermid, I. S., Jaffe, D., Gao, R., Stith, J., Ryerson, T., Aikin, K., Campos, T., Weinheimer, A., and Avery, M. A.: Increasing springtime ozone mixing ratios in the free troposphere over western North America, Nature463, 344-348,, 2010
  12. Leblanc, T., I. S. McDermid, and R. A. Aspey, First-Year Operation of a New Water Vapor Raman Lidar at the JPL Table Mountain Facility, California, J. Atmos. Ocean. Tech., 25(8), 1454-1462, 2008
  13. Leblanc, T., and I. S. McDermid, Accuracy of Raman lidar water vapor calibration and its applicability to long-term measurements, Appl. Opt., 47(30), 5592-5603, 2008
  14. Leblanc, T., O. P. Tripathi, I. S. McDermid, L. Froidevaux, N. J. Livesey, W. G. Read, and J. W. Waters, Simultaneous lidar and EOS MLS measurements, and modeling, of a rare polar ozone filament event over Mauna Loa Observatory, Hawaii, Geophys. Res. Lett., 33(16), L16801, 2006
  15. Leblanc, T., I. S. McDermid, and A. Hauchecorne. A study of ozone variability and its connection with meridional transport in the Northern Pacific lower stratosphere during summer 2002, J. Geophys. Res., DOI:10.1029/2003JD004027, 2004.
  16. McDermid, I. S., G. Beyerle, D. A. Haner, and T. Leblanc, Redesign and improved performance of the JPL-TMF tropospheric ozone lidar, Appl. Opt., 41, 7550-7555, 2002.
  17. Leblanc, T., and I. S. McDermid, Quasi-biennial oscillation signatures in ozone and temperature observed by lidar at Mauna Loa, Hawaii (19.5°N, 155.6°W), J. Geophys. Res., 106, 14,869-14,874 (2001)
  18. Leblanc, T., and I. S. McDermid, Stratospheric ozone climatology from lidar measurements at Table Mountain (34.4°N, 117.7°W) and Mauna Loa (19.5°N, 155.6°W), J. Geophys. Res., 105, 14,613-14,623 (2000)
  19. Leblanc, T., I. S. McDermid, and D. A. Ortland, Lidar observations of the middle atmospheric thermal tides and comparison with HRDI and GSWM. Part II: October observations at Mauna Loa (19.5°N)., J. Geophys. Res., 104, 11,931-11,938 (1999)
  20. Leblanc, T., I. S. McDermid, and D. A. Ortland, Lidar observations of the middle atmospheric thermal tides and comparison with HRDI and GSWM. Part I: Methodology and winter observations at Table Mountain (34.4°N)., J. Geophys. Res., 104, 11,917-11,930 (1999)
  21. Leblanc, T., I. S. McDermid, C. Y. She, D. A. Krueger, A. Hauchecorne, and P. Keckhut, Temperature climatology of the middle atmosphere from long-term lidar measurements at mid- and low-latitudes, J. Geophys. Res., 103., 17,191-17,204 (1998)
  22. Leblanc, T., I. S. McDermid, A. Hauchecorne, and P. Keckhut, Evaluation and optimization of lidar temperature analysis algorithms using simulated data, J. Geophys. Res., 103, 6177-6187 (1998)
  23. Leblanc, T., and A. Hauchecorne, Recent observations of the mesospheric temperature inversions, J. Geophys. Res., 102, 19,471-19,482 (1997)
  24. Leblanc, T., A. Hauchecorne, M. L. Chanin, F. W. Taylor, C. D. Rodgers, and N. Livesey, Mesospheric temperature inversions as seen by ISAMS (UARS), Geophys. Res. Lett., 22, 1485-1488 (1995)
  25. Leblanc, T., Observation et modélisation numérique des inversions mésosphériques de température, Thése de Doctorat de l'Université Paris VI, 258 pp. (1995)

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