Mr. Clough's current activities are focused on the improvement of radiative transfer modeling for general circulation models with application to climate change studies. In addition to being a co-investigator on TES, Mr. Clough is a member of the Science Team of the Atmospheric Radiation Measurement program (ARM) for which his responsibilities include the development, improvement and validation of radiative transfer models. He is also a member of the ARM Science Team Executive Committee and a member of the International Radiation Commission. He has been responsible for the development of the widely used atmospheric radiative modeling codes including LBLRTM, RRTM, and CHARTS, and has made significant contributions to the HITRAN spectroscopic data base.

Atmospheric radiative transfer, molecular physics, and approaches to the retrieval of information from remotely sensed measurements.

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.

Beer, R., M. 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.

Worden, J., K. Bowman, D. Noone, R. Beer, S. Clough, A. Eldering, B. Fisher, A. Goldman, M. Gunson, R. Herman, S. Kulawik, M. Lampel, M. Luo, G. Osterman, C. Rinsland, C. Rodgers, S. Sander, M. Shephard, and H. Worden, 'Tropospheric Emission Spectrometer observations of the tropospheric HDO/H 2 O ratio: Estimation approach and characterization", J. Geophys. Res., 111, D16309, doi:10.1029/2005JD006606, August 25, 2006.

Clough, S.A.; Shephard, M.W.; Worden, J.; Brown, P.D.; Worden, H.M.; Luo, M.; Rodgers, C.D.; Rinsland, C.P.; Goldman, A.; Brown, L.; Kulawik, S.S.; Eldering, A.; Lampel, M.C.; Osterman, G.; Beer, R.; Bowman, K.; Cady-Pereira, K.E.; Mlawer, E.J., "Forward Model and Jacobians for Tropospheric Emission Spectrometer Retrievals", IEEE Trans. Geosci. Remote Sensing, 44, 1308- 1323, May 2006.

Worden, J.; Sund-Kulawik, S.; Shephard, M. W.; Clough, S. A.; Worden, H.; Bowman, K.; Goldman, A., "Predicted errors of tropospheric emission spectrometer nadir retrievals from spectral window selection", J. Geophys. Res., Vol. 109, No. D9, D09308, 10.1029/2004JD004522, May 15, 2004.

Clough, S. A., J. R. Worden, P. D. Brown, M. W. Shepard, C. P., Rinsland, R. Beer, "Retrieval of tropospheric ozone from simulations of limb spectral radiances as observed from space", J. Geophys. Res., 107, 10.1029/2001JD001307, 2002.