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 Laboratory Studies And Atmospheric Observations (329H): People
Brian  Drouin's Picture
Jet Propulsion Laboratory
M/S 183-301
4800 Oak Grove Drive
Pasadena, CA 91109
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Curriculum Vitae:

Brian Drouin
Group Supervisor

Dr. Brian Drouin's background in chemistry and mathematics, as well as interest in molecular structure and symmetry, has supported a thirteen year career in molecular spectroscopy. Beginning with microwave spectroscopy of organometallic compounds, his Ph. D. work involved measurement and analyses of highly precise rotational transition frequencies of molecules in cold molecular beams. At JPL he has recorded and analyzed millimeter and submillimeter spectra of both astrophysical and atmospheric molecules while incorporating state-of-the-art hardware and software to the spectrometer. He is now a JPL research scientist and is responsible for measurements of molecular line-shape parameters for the Microwave Limb Sounder, as well as measurements of collision rates for water at very low temperatures, and THz measurements of molecules that are expected to be observable with the Herschel Space Observatory. He is the primary caretaker for the JPL spectral line catalog used throughout the spectroscopy and remote sensing communities.

  • B.S. in Mathematics, University of Wisconsin (1995)
  • B.S. in Chemistry, University of Wisconsin (1995)
  • Ph.D. in Chemistry, University of Arizona (1999)

Research Interests
  • Atmospheric Chemistry, Climate Change and Pollution (PI - Millimeter and Submillimeter Spectroscopy for Atmospheric Research)
  • Low Temperature Collisional Dynamics (PI - Measurements of State-to-State Collision Rates for Water)
  • Molecular Spectra and Structure (PI - Laboratory Spectroscopy and Analysis for Herschel, PI - Millimeter and Submillimeter Spectral Line Catalog)
  • Instrumentation for Laboratory and Field Studies (PI - Submillimeter Spectroscopy for Life Detection)


Herschel Icon Herschel
The Herschel Space Observatory is a space-based telescope that studies the Universe in the light of the far-infrared and submillimeter portions of the spectrum.

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.

Professional Experience
  • Jet Propulsion Laboratory (1999-Present)
    • Research Scientist, Science Division (2005 - Present)
    • Scientist, Science Division (2001-2005)
    • California Institute of Technology Postdoctoral Scholar at JPL (1999-2001)
  • University of Arizona, Department of Chemistry (1995-1999)
    • Research Assistant, Microwave Spectroscopy (1996-1999)
    • Teaching Assistant, Physical & General Chemistry (1995-1999)
  • University of Wisconsin, (1993-1995)
    • Undergraduate Researcher, Inorganic Chemistry (1993-1995)
    • Undergraduate Researcher, Horticulture (1994-1995)
    • Undergraduate Researcher, Analytical Chemistry (1993, 1995)

Selected Awards
  • NASA Individual Outstanding Accomplishment "Significant scientific discovery by measuring the structure, spectrum, and dipole moment of HOONO" (2006)
  • NASA Group Achievement Award for the Aura Microwave Limb Sounder Ground Data System Development Team (2005)
  • Certificate of Accomplishment "Awarded in Appreciation of Your Contribution to the Aura Microwave Limb Sounder Science Assessment Team" (2005)
  • National Research Council Postdoctoral Fellowship (1999)
  • Teaching Assistant Award for excellence in teaching (1997, 1996)

    Selected Publications

    Refereed Publications (30 first author, 108 total)

    1. Drouin B.J., J.C. Pearson, S. Yu, H. Gupta "Characterization and use of a 1.3-1.5 THz multiplier chain for molecular spectroscopy." IEEE-TST 3(3) 314-321, 2013.
    2. Drouin B.J. "Isotopic Spectra of the Hydroxyl Radical" J. Phys. Chem. A DOI: 10.1021/jp400923z, 2013.
    3. Drouin, B.J., L. Wiesenfeld, "Low-Temperature water-hydrogen-molecule collisions probed by pressure broadening and line shift", Phys. Rev. A 86, 022705, 2012.
    4. Drouin, B.J., H. Gupta, S. Yu, C.E. Miller, H.S.P. Mueller, "High resolution spectral analysis of oxygen. II. Rotation al spectra of a a 1Δg O2 isotopologues", J. Chem. Phys. 136, 2012.
    5. Drouin B.J., S. Yu, J. C. Pearson, H. Gupta, "Terahertz Spectroscopy for Space Applications, 2.5-2.7: THz Spectra of HD, H2O and NH3" Journal of Molecular Structure Special Issue on THz Spectroscopy, 1006, 2-12, 2011.
    6. Drouin B.J., S. Yu, "Acetylene Spectra near 2.6 THz" Journal of Molecular Spectroscopy 269(2), 254-256, 2011.
    7. Drouin B.J., S. Yu, C.E. Miller, H.S.P. Mueller, F. Lewen, S.Bruenken, H. Habara, "Terahertz spectroscopy of oxygen,O2, 3Σg and 1Δ electronic states", Journal of Quantitative Spectroscopy and Radiative Transfer, 111, 1167-1173, 2010.
    8. Drouin B.J., S. Yu, J.C. Pearson, H.S.P. Mueller, "High resolution spectroscopy of CH3D and 13CH3D", Journal of Quantitative Spectroscopy and Radiative Transfer 110(18) 2077-2081, 2009.
    9. Drouin, B.J., R. R. Gamache, "Temperature Dependent Air Broadened Linewidths of Ozone Rotational Transitions" Journal of Molecular Spectroscopy, 251(1-2), 1-3, 2008.
    10. Drouin, B.J., "Temperature dependent pressure induced linewidths of O2 and 18O16O transitions in nitrogen, oxygen and air", Journal of Quantitative Spectroscopy and Radiative Transfer, 105 (3): 450-458, 2007.
    11. Drouin, B.J., "Submillimeter measurements of N2 and air broadening of hypochlorous acid," Journal of Quantitative Spectroscopy and Radiative Transfer, 103 (3): 558-564, 2007.
    12. Drouin, B.J., J. C. Pearson, A. Walters, V. Lattanzi "THz Measurements of Propane" Journal of Molecular Spectroscopy, 240 (2): 227-237, 2006.
    13. Drouin, B. J., F.W. Maiwald, "Extended THz measurements of nitrous oxide, N2O," Journal of Molecular Spectroscopy, 236 (2): 260-262, 2006.
    14. Drouin, B. J., C. E. Miller, J. L. Fry, D. T. Petkie, P. Helminger, I. Medvedev, "Submillimeter measurements of isotopes of nitric acid," Journal of Molecular Spectroscopy, 236 (1): 29-34, 2006.
    15. Drouin B. J., F.W. Maiwald, J. C. Pearson, "Application of cascaded frequency multiplication to molecular spectroscopy," Review of Scientific Instruments, 76 (9): Art. No. 093113, 2005.
    16. Drouin B.J., J. L. Fry, C. E. Miller, "Rotational spectrum of cis-cis HOONO", Journal of Chemical Physics, 120 (12): 5505-5508, 2004.
    17. Drouin B.J., "Temperature dependent pressure-induced lineshape of the HCl J = 1 ← 0 rotational transition in nitrogen and oxygen", Journal of Quantitative Spectroscopy and Radiative Transfer, 83 (3-4): 321-331, 2004.
    18. Drouin B.J., J. Fischer, R. R. Gamache, "Temperature dependent pressure induced lineshape of O3 rotational transitions in air", Journal of Quantitative Spectroscopy and Radiative Transfer, 83 (1): 63-81, 2004.
    19. Drouin B.J., C. E. Miller and E. A. Cohen, "Further investigations of the submillimeter spectrum of ClO", Journal of Molecular Spectroscopy, 207(1), 4-9, 2001.
    20. Drouin B.J., C. E. Miller, H. S. P. Muller and E. A. Cohen, "The rotational spectra, isotopically independent parameters, and interatomic potentials for the X1 2Π3/2 and X2 2Π1/2 states of BrO", Journal of Molecular Spectroscopy, 205(1), 128-138, 2001.

    Recent Peer-reviewed Non-first Author Publications

    1. Rothman L.S. et al. "The HITRAN 2012 Molecular Spectroscopic Database", submitted to J. Quant. Spectrosc. & Radiat. Trans. 2013.
    2. Ilyushin, V., C.P. Endres, F. Lewen, S. Schlemmer, B. J. Drouin, "Submillimeter wave spectrum of acetic acid", accepted to J. Molec. Spectrosc. 2013.
    3. Cohen, E.A., B.J. Drouin, "Submillimeter wave spectrum of sulfuric acid, H2SO4", J. Mol. Spectrosc. DOI:10.1016/j.jms.2013.04.008, 2013.
    4. Faure A., L. Wiesenfeld, B.J. Drouin, J. Tennyson, "Pressure broadening of water and carbon monoxide transitions by molecular hydrogen at high temperatures." J. Quant. Spec. Radiat. Trans. 116, 79-86, 2013.
    5. Cohen, E.A. B.J. Drouin, L.R. Brown, J.J. Oh " Terahertz and infrared spectra of carbonyl fluoride, COF2: Vibration-rotation analyses of the four lowest bands, 2ν6, and ν6, hot bands; 13COF2 ground state and ν6 band." J. Quant. Spectrosc. Radiat. Trans. 114, 13-19, 2013.
    6. Pearson, J.C., S. Yu, B.J. Drouin, "The ground state torsion rotation spectrum of CH2DOH", J. Molec. Spectrosc. 280, 119-133, 2012.
    7. Yu S., J. C. Pearson, B. J. Drouin, M-A. Martin-Drumel, O. Pirali, M. Vervloet, L.H. Coudert, H. S.P. Müller, S. Brünken, "Measurement and analysis of new terahertz and far-infrared spectra of high temperature water" J. Molec. Spectrosc. 279, 16-25, 2012.
    8. S. Yu, C.E. Miller, B.J. Drouin, H.S.P. Mueller, "High resolution spectral analysis of oxygen. I. Isotopically Invariant Dunham Fit for the X 3Σg-, a 1Δg, b1Σg+ States", J. Chem. Phys. 136, 2012.
    9. Gupta, H. B.J. Drouin, J.C. Pearson "The Rotational Spectrum of HCl+" Ap. J. Lett. 751(2) L38, 2012.

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