Jason St. Clair

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JasonB57.jpgStaff Scientist, Environmental Science and Engineering

Linde Center for Global Environmental Science


Office: Linde-Robinson Laboratory

            MC 131-24
            Pasadena CA 91125

Office Phone: 626 395 8606

e-mail: jstclair 'at symbol' caltech.edu




Ph.D., Anderson Group,Department of Chemistry and Chemical Biology, Harvard University, 2007

B.A., Chemistry, Colby College, 2000



Current research interests:

Chemical evolution of boreal fire emissions

Biogenic secondary organic aerosol formation

Development of in situ instruments and measurement techniques





CalNex SJV

DC3 (Deep Convective Clouds and Chemistry)  



Selected publications (complete list here):

 Beaver, M. R., J. M. St. Clair, F. Paulot, K. M. Spencer, J. D. Crounse, B. W. LaFranchi, K. E. Min, S. E. Pusede, P. J. Wooldridge, G.W. Schade, C. Park, R. C. Cohen, and P. O.Wennberg, "Importance of biogenic precursors to the budget of organic nitrates: observations of multifunctional organic nitrates by CIMS and TD-LIF during BEARPEX 2009," Atmos. Chem. Phys., 12, 5773-5785, doi:10.5194/acp-12-5773-201, 2012.  

St. Clair, J.M.
, D. McCabe, J.D. Crounse, U. Steiner, P.O. Wennberg, "Chemical Ionization Tandem Mass Spectrometer for the in-situ Measurement of Methyl Hydrogen Peroxide," Review of Scientific Instruments, 81 (9), Art. No. 094102, 2010.

Paulot, F., J.D. Crounse, H.G. Kjaergaard, A. Kürten, J.M. St. Clair, J.H. Seinfeld, P.O. Wennberg, " Unexpected epoxide formation in the gas-phase photooxidation of isoprene," Science, 325, 730-733, 2009.

St Clair, J.M., T.F. Hanisco, E.M. Weinstock, E.J. Moyer, D.S. Sayres, F.N. Keutsch, J. H. Kroll, J. N. Demusz, N. T. Allen, J.B. Smith, J.R. Spackman, J. G. Anderson, “A new photolysis laser-induced fluorescence instrument for the detection of H2O and HDO in the lower stratosphere,” Review of Scientific Instruments, 79 (6),  Art. No. 064101,  2008. 

Mission photos 


 AGU posters 


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