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DeSouza-Machado, Sergio

Research Assistant Professor

Departmental Affiliation:  Physics

GSFC Code:  610.6

Mailing Address:
Physics Department
Room 427
1000 Hilltop Circle
Baltimore, MD 21250 USA

Phone:  (410) 455-1944
Fax:  (410) 455-1072

Research Interests:

Atmospheric physics : Spectroscopy, clear/scattering radiative transfer and regularized retrievals using infrared spectra.

Climate physics : Studying climate and extreme events using evolution of probability distribution functions. Temperature, humidity and trace gas trends from infrared sounders.


Dr. Sergio DeSouza-Machado obtained a B.A. in Math/Physics from the College of Wooster, OH in 1988.  He then attended graduate school at the University of Maryland at College Park, where he obtained his M.S. in 1990 and Ph.D. in Plasma Physics in 1996.  After this, he joined the Atmospheric Spectroscopy Laboratory at the University of Maryland, Baltimore County in September 1996. He has developed kCARTA, a package that rapidly computes monochromatic absorption spectra, radiances and jacobians, and does scattering and NonLTE computations.  In addition, he has developed a line-by-line code that includes CO2 P/R linemixing and water continuum corrections.  His current research work is on retrievals of dust heights and optical depths, and trace gas retrievals.

Recent Publications:

S. DeSouza-Machado, L. Strow, E. Maddy, O. Torres, G. Thomas, D. Grainger, A. Robinson, “Using a synergy of AIRS infrared radiances and MODIS L2 optical depths to retrieve daytime atmospheric dust and volcanic ash heights”, Atmos. Meas. Tech Disc., 8, doi: 10.5194/amtd-8-443-2015, (2015)

H. H. Aumann, S. DeSouza-Machado and A. Behrangi, “Deep Convective Clouds at the Tropopause, Atmospheric Chemistry and
Physics, 11, 1167-1176, (2011)

S. DeSouza-Machado, L. L. Strow, S. E. Hannon, B. Imbiriba, K. McCann, R. Hoff, J. V. Martins, O. Torres, D. Tanre, F. Ducos, F. Deuze, “Dust studies using AIRS Infrared data : A comparison of infrared dust column optical depth and height retrievals from AIRS against PARASOL, MODIS, OMI and CALIPSO retrievals,” Journal of Geophysical Research, 115, D15201, doi: 10.1029/2009JD012842 (2010)

S. DeSouza-Machado, L. L. Strow, S. E. Hannon, H. Motteler, M. Lopez-Puertas, B. Funke and D. P. Edwards, “Fast Forward Radiative Transfer Modeling of 4.3 um Non-Local Thermodynamic Equilibrium effects for the Aqua/AIRS Infrared Temperature Sounder,” Geophysical Review Letters, 34, L01802, doi:10.1029/2006GL026684 (2006)