Mark Shephard

Mark Shephard has 10 years experience in satellite remote sensing and radiative transfer, and has authored and co-authored over 25 peer- reviewed publications. His recent research efforts have been focused on tasks for NASA’s Tropospheric Emission Spectrometer (TES) through his direct involvement in the TES Science Team and Algorithm Working Group. This research includes improving and validating the physical retrieval of atmospheric pollutants (i.e. tropospheric ozone) from passive remote sensors, and the further development of AER’s radiative transfer models, such as Line-By-Line Radiative Transfer Model (LBLRTM). He has also worked on the National Polar-Orbiting Operational Environmental Satellite System (NPOESS) project. His main responsibilities include the development and analysis of many algorithms and sensor design specifications for satellite infrared retrievals (i.e. Active Fire products). In addition to passive remote sensing, he has experience with active remote sensing of the atmosphere for cloud and pollution research. He also received a NASA Goddard Space Flight Center Award in 2005 for his involvement in the NASA Aura project.

Shephard, M. W, R. L. Herman, B. M. Fisher, K. E. Cady-Pereira, S. A. Clough, V. H. Payne, et al., "Comparison of Tropospheric Emission Spectrometer (TES) Nadir Water Vapor Retrievals with In Situ Measurements", J. Geophys. Res., 113, D15S24, doi:10.1029/2007JD008822, May 16, 2008.

Rinsland, C. P., M Luo, M. W. Shephard, C. Clerbaux, C. D. Boone, P. F. Bernath, L. Chiou, and P. F. Coheur, "Tropospheric Emission Spectrometer (TES) and Atmospheric Chemistry Experiment (ACE) measurements of tropospheric chemistry in tropical southeast Asia during a moderate El Niño in 2006", J Quant Spectrosc Radiat Transfer, 109/10, 10.1016/j.jqsrt.2007.12.020, May 16, 2008.

Shephard M.W., H. M. Worden, K. E. Cady-Pereira, M. Lampel, M. Luo, K. W. Bowman, E. Sarkissian, R. Beer, D. M. Rider, D. C. Tobin, H. E. Revercomb, B. M. Fisher, D. Tremblay, S. A. Clough, G. B. Osterman, M. Gunson, "Tropospheric Emission Spectrometer Spectral Radiance Comparisons", J Geophys Res., 113, D1505: doi:10.1029/2007JD008856, 2008

Osterman, G., S.S. Kulawik, H.M. Worden, N.A.D. Richards, B.M. Fisher, A. Eldering, M.W. Shephard, L. Froidevaux, G. Labow, M. Luo, R.L. Herman, K.W. Bowman, and A. M. Thompson, "Validation of Tropospheric Emission Spectrometer (TES) Measurements of the Total, Stratospheric and Tropospheric Column Abundance of Ozone", J. Geophys. Res., 113, D15S16, doi:10.1029/2007JD008801, May 7, 2008.

Beer, R., . W. Shephard, S. S. Kulawik, S. A. Clough, A. Eldering, K. W. Bowman, S. P. Sander, B. M. Fisher, V. H. Payne, M. Luo, G. B. Osterman and J. R. Worden, "First satellite observations of lower tropospheric ammonia & methanol", Geophys. Res. Lett, 35, L09801, doi:10.1029/2008GL033642, May 1, 2008.

Luo, M., C. Rinsland, B. Fisher, G. Sachse, G. Diskin, J. Logan, H. Worden, S. Kulawik, G. Osterman, A. Eldering, R. Herman and M. Shephard, "TES carbon monoxide validation with DACOM aircraft measurements during INTEX-B 2006", J. Geophys. Res., 112, D24S48, doi:10.1029/2007JD008803, December 20, 2007.

Worden, H. M., J. Logan, J. R. Worden, R. Beer, K. Bowman, S. A. Clough, A. Eldering, B. Fisher, M. R. Gunson, R. L. Herman, S. S. Kulawik, M. C. Lampel, M. Luo, I. A. Megretskaia, G. B. Osterman, M. W. Shephard, "Comparisons of Tropospheric Emission Spectrometer (TES) ozone profiles to ozonesodes: methods and initial results", J. Geophys. Res., 112, D03309, doi:10.1029/2006JD007258, February 15, 2007

Rinsland, C. P., M. Luo, J. A. Logan, R. Beer, H. M. Worden, J. R. Worden, K. Bowman, S. S. Kulawik, D. Rider, G. Osterman, M. Gunson, A. Goldman, M. Shephard, S. A. Clough, C. Rodgers, M. Lampel, and L. Chiou, "Nadir Measurements of carbon monoxide distributions by the Tropospheric Emission Spectrometer onboard the Aura Spacecraft: Overview of analysis approach and examples of initial results", Geophys. Res. Lett., 33, L2280610.1029/2006GL027000, November 22, 2006.