thornton

US Mailing Address: Joel Thornton Dept. of Atmospheric Sciences 408 ATG Building University of Washington Seattle, WA 98195 Phone/fax: 206-543-4010	Department of Atmospheric Sciences University of Washington
Group Members	Thornton Group Home	Joel Thornton
		thornton@atmos.washington.edu
		Associate Professor
Photo courtesy of Frank Jenkins

	Scientific Interests: atmospheric chemistry, air pollution, climate change
	Curriculum Vitae - PDF version
	Education
	2002-2004 Postdoctoral Fellow, Department of Chemistry, University of Toronto 2002 Ph.D., Department of Chemistry, University of California, Berkeley 1996 B.A., Dartmouth College; Magna Cum Laude, Honors in Chemistry
	Awards and Achievements
	2010 Annual Teaching Award, Department of Atmospheric Sciences, University of Washington 2009 NSF CAREER Award 2008 NASA Group Achievement Award for work on the INTEX-B Campaign 2006 The Henry and Camille Dreyfus Foundation Postdoctoral Program in Environmental Chemistry 2005 UW Curriculum Development Award 2004-2007 NASA New Investigator Program in Earth Science 2003 Atmospheric Chemistry Colloquium for Emerging Senior Scientists 1999-2002 NASA Earth Systems Science Fellow 2002 University of California Club of San Francisco Fellowship 2000 Teaching Effectiveness Award (UC, Berkeley campus-wide competition) 1999 Outstanding Graduate Student Instructor (Dept. of Chemistry, UC, Berkeley) 1996 American Chemical Society Award for Excellence in Analytical Chemistry
	Professional Activities
	Co-Editor of Atmospheric Chemistry and Physics PNNL LDRD Aerosol Initiative Review Panel PNNL EMSL Recapitalization Workshop Panel Co-Chair Atmospheric Chemistry Session Spring 2008 ACS Meeting Co-Chair Tropospheric Heterogeneous Chemistry and Aerosol Phase Transitions Session Fall 2006 AGU Meeting Co-Chair Tropospheric Chemistry Session Spring 2004 AGU Meeting Science Team Member of Following Field Campaigns: SOS99, TOPSE 2000, TEXAQS 2000, INTEX-B 2006, BEARPEX 2007, POLARCAT (ICEALOT) 2008, BEARPEX 2009, CALNEX 2010 - Research Vessel Atlantis, San Joaquin Valley site, Los Angeles Supersite Member of Following Professional Societies: American Geophysical Union, European Geosciences Union, American Chemical Society, American Meteorological Soceity
	Teaching and Mentoring Activities
	2004 - current Courses Taught: Global Atmospheric Chemistry, Fundatmentals of Atmospheric Chemistry, Atmospheric Aerosols and Multiphase Chemistry, Climate and Climate Change, Instruments and Observations Research Advising (cumulative): 5 undergraduates, 7 graduate students, and 3 postdoctoral fellows 1996-1999 Graduate Student Instructor, UC, Berkeley
	Publications (as of September 2010; asterisk, *, denotes PI or corresponding author status)
	Choi, W., I. C. Faloona, N. C. Bouvier-Brown, M. McKay, A. H. Goldstein, J. Mao, W. H. Brune, B. W. LaFranchi, R. C. Cohen, G. M. Wolfe, J. A. Thornton, D. M. Sonnenfroh, and D. B. Millet (2010), Observations of elevated formaldehyde over a forest canopy suggest missing sources from rapid oxidation of arboreal hydrocarbons, Atmos. Chem. Phys., 10(18), 8761. Wolfe, G. M., and J. A. Thornton* (2010), The Chemistry of Atmosphere-Forest Exchange (CAFE) Model, Part 1: Model description and characterization, Atmos. Chem. Phys. Discuss., 10(9), 21721. Wolfe, G. M., J. A. Thornton, N. C. Bouvier-Brown, A. H. Goldstein, J. H. Park, M. McKay, D. M. Matross, J. Mao, W. H. Brune, B. W. LaFranchi, E. C. Browne, K. E. Min, P. J. Wooldridge, R. C. Cohen, J. D. Crounse, I. C. Faloona, J. B. Gilman, W. C. Kuster, J. A. de Gouw, A. Huisman, and F. N. Keutsch (2010), The Chemistry of Atmosphere-Forest Exchange (CAFE) Model, Part 2: Application to BEARPEX-2007 observations, Atmos. Chem. Phys. Discuss., 10(9), 21791. Wooldridge, P. J., A. E. Perring, T. H. Bertram, F. M. Flocke, J. M. Roberts, H. B. Singh, L. G. Huey, J. A. Thornton, G. M. Wolfe, J. G. Murphy, J. L. Fry, A. W. Rollins, B. W. LaFranchi, and R. C. Cohen (2010), Total Peroxy Nitrates (SPNs) in the atmosphere: the Thermal Dissociation-Laser Induced Fluorescence (TD-LIF) technique and comparisons to speciated PAN measurements, Atmos. Meas. Tech., 3(3), 593. Zaveri, R. A., C. M. Berkowitz, F. J. Brechtel, M. K. Gilles, J. M. Hubbe, J. T. Jayne, L. I. Kleinman, A. Laskin, S. Madronich, T. B. Onasch, M. S. Pekour, S. R. Springston, J. A. Thornton, A. V. Tivanski, and D. R. Worsnop (2010), Nighttime chemical evolution of aerosol and trace gases in a power plant plume, Journal of Geophysical Research-Atmospheres, 115(D12304), doi:10.1029/2009JD013250. Thornton, J. A., J. P. Kercher, T. P. Riedel, N. L. Wagner, J. Cozic, J. S. Holloway, W. P. Dubey, G. M. Wolfe, P. K. Quinn, A. M. Middlebrook, B. Alexander, and S. S. Brown (2010), A large atomic chlorine source inferred from mid-continental reactive nitrogen chemistry, Nature, 10.1038/nature08905. Yatavelli, R., and J. A. Thornton* (2010), Particulate Organic Matter Detection Using a Micro-Orifice Volatilization Impactor Coupled to a Chemical Ionization Mass Spectrometer (MOVI-CIMS), Aerosol Science and Technology, 44(1), 61-74. Alexander, B., M. G. Hastings, D. J. Allman, J. Dachs, J. A. Thornton, and S. A. Kunasek (2009), Quantifying atmospheric nitrate formation pathways based on a global model of the oxygen isotopic composition (D¹⁷O) of atmospheric nitrate, Atmos. Chem. Phys., 9(14), 5043. Bertram, T. H., and J. A. Thornton* (2009), Toward a general parameterization of N₂O₅ reactivity on aqueous particles: the competing effects of particle liquid water, nitrate and chloride, Atmos. Chem. Phys., 9(21), 8351. Bertram, T. H., J. A. Thornton, A. M. Middlebrook, R. Bahreini, C. A. Brock, P. K. Quinn, T. Bates, D. Coffman, B. Lerner, and E. J. Williams (2009a), Direct measurements of N₂O₅ reactivity on ambient aerosol particles, Geophysical Research Letters, 36, L19803 doi:19810.11029/12009GL040248. Bertram, T. H., J. A. Thornton, and T. P. Riedel (2009b), An experimental technique for the direct measurement of N₂O₅ reactivity on ambient particles, Atmos. Meas. Tech., 2(1), 231. Kercher, J. P., T. P. Riedel, and J. A. Thornton* (2009), Chlorine activation by N₂O₅: simultaneous, in situ detection of ClNO₂ and N₂O₅ by chemical ionization mass spectrometry, Atmos. Meas. Tech., 2(1), 193. LaFranchi, B. W., G. M. Wolfe, J. A. Thornton, S. A. Harrold, E. C. Browne, K. E. Min, P. J. Wooldridge, J. B. Gilman, W. C. Kuster, P. D. Goldan, J. A. de Gouw, M. McKay, A. H. Goldstein, X. Ren, J. Mao, and R. C. Cohen (2009), Closing the peroxy acetyl nitrate budget: observations of acyl peroxy nitrates (PAN, PPN, and MPAN) during BEARPEX 2007, Atmos. Chem. Phys., 9(19), 7623. Reidmiller, D., D. A. Jaffe, D. Chand, S. Strode, P. Swartzendruber, G. Wolfe, and J. A. Thornton* (2009), Interannual variability of long-range transport as seen at the Mt. Bachelor Observatory in central Oregon, Atmospheric Chemistry and Physics, 9, 557-572. Wolfe, G. M., J. A. Thornton, R. Yatavelli, M. McKay, A. H. Goldstein, B. LaFranchi, R. C. Cohen, W. H. Brune, Z. Chen, and X. Ren (2009), Eddy covariance flux measurements of acyl peroxy nitrates (PAN, PPN, and MPAN) above a Ponderosa pine forest, Atmospheric Chemistry and Physics, 9, 615-634. Wooldridge, P. J., A. E. Perring, T. H. Bertram, F. M. Flocke, J. M. Roberts, H. B. Singh, L. G. Huey, J. A. Thornton, J. G. Murphy, J. L. Fry, A. W. Rollins, B. W. LaFranchi, and R. C. Cohen (2009), Total peroxy nitrates (SPNs) in the atmosphere: the thermal dissociation-laser induced fluorescence (TD-LIF) technique and comparisons to speciated PAN measurements, Atmos. Meas. Tech. Discuss., 2(6), 3055. Yatavelli, R., and J. A. Thornton (2010), Particulate Organic Matter Detection Using a Micro-Orifice Volatilization Impactor Coupled to a Chemical Ionization Mass Spectrometer (MOVI-CIMS), Aerosol Science and Technology, 44(1), 61-74. Zaveri, R. A., C. M. Berkowitz, F. J. Brechtel, M. K. Gilles, J. M. Hubbe, J. T. Jayne, L. I. Kleinman, A. Laskin, S. Madronich, T. B. Onasch, M. S. Pekour, S. R. Springston, J. A. Thornton, A. V. Tivanski, and D. R. Worsnop (2009), Nighttime chemical evolution of aerosol and trace gases in a power plant plume, Journal of Geophysical Research-Atmospheres, accepted. Song, C., R. A. Zaveri, M. L. Alexander, J. A. Thornton, S. Madronich, J. V. Ortega, A. Zelenyuk, X. Y. Yu, A. Laskin, and D. A. Maughan (2007), Effect of hydrophobic primary organic aerosols on secondary organic aerosol formation from ozonolysis of alpha-pinene, Geophysical Research Letters, 34(20), L20803 Thornton, J. A.,* L. Jaegle, and V. F. McNeill (2008), Assessing known pathways for HO₂ loss in aqueous atmospheric aerosols: Regional and global impacts on tropospheric oxidants, Journal Of Geophysical Research-Atmospheres, 113(D5), D05303. Wolfe, G. M., J. A. Thornton,* V. F. McNeill, D. A. Jaffe, D. Reidmiller, D. Chand, J. Smith, P. Swartzendruber, F. Flocke, and W. Zheng (2007), Influence of trans-Pacific pollution transport on acyl peroxy nitrate abundances and speciation at Mount Bachelor Observatory during INTEX-B, Atmospheric Chemistry And Physics, 7(20), 5309-5325 McNeill, V.F.; G.M. Wolfe; J.A. Thornton* Oxidation of Oleate in Sub-Micron Aqueous Salt Particles: Evidence of a Surface Process. Journal Of Physical Chemistry A, 111, 1073-1083, 2007. McNeill, V.F., J. Patterson, G.M. Wolfe, and J.A. Thornton, The effect of varying levels of surfactant on the reactive uptake of N₂O₅ to aqueous aerosol, Atmospheric Chemistry And Physics, 6, 1635-1644, 2006. Thornton, J.A., Abbatt, J.P.D., N₂O₅ reaction on submicron sea salt aerosol: Kinetics, products, and the effect of surface active organics, Journal Of Physical Chemistry A, 109, 10004-10012, 2005. Thornton, J.A., Abbatt, J.P.D., Measurements of HO₂ uptake to aqueous aerosol: Mass accommodation coefficients and net reactive loss, Journal Of Geophysical Research-Atmospheres, 110, D08309, 2005. Kwamena, N.O.A., J.A. Thornton, and J.P.D. Abbatt, Kinetics of surface-bound benzo[a]pyrene and ozone on solid organic and salt aerosols, Journal Of Physical Chemistry A, 108(52), 11626-11634, 2004. Murphy, J.G., J.A. Thornton, P.J. Wooldridge, D.A. Day, R.S. Rosen, C. Cantrell, R.E. Shetter, B. Lefer, and R.C. Cohen, Measurements of the sum of HO₂NO₂ and CH₃O₂NO₂ in the remote troposphere, Atmospheric Chemistry and Physics, 4, 377-384, 2004. Rosen, R.S., E.C. Wood, P.J. Wooldridge, J.A. Thornton, D.A. Day, W. Kuster, E.J. Williams, B.T. Jobson, and R.C. Cohen, Observations of total alkyl nitrates during Texas Air Quality Study 2000: Implications for O₃ and alkyl nitrate photochemistry, Journal of Geophysical Research-Atmospheres, 109* (D7), 2004. Thornton, J.A., C.F. Braban, and J.P.D. Abbatt, N₂O₅ hydrolysis on sub-micron organic aerosols: the effect of relative humidity, particle phase, and particle size, Physical Chemistry Chemical Physics, 5 (20), 4593-4603, 2003. Thornton, J.A., P.J. Wooldridge, R.C. Cohen, E.J. Williams, D. Hereid, F.C. Fehsenfeld, J. Stutz, and B. Alicke, Comparisons of in situ and long path measurements of NO₂ in urban plumes, Journal of Geophysical Research-Atmospheres, 108* (D16), 2003 Thornton, J.A., P.J. Wooldridge, R.C. Cohen, M. Martinez, H. Harder, W.H. Brune, E.J. Williams, S.R. Hall, R.E. Shetter, B.P. Wert, B. Henry, A. Fried, and F.E. Fehsenfeld, Observations of ozone production rates as a function of NO_x abundances and HO_x production rates in the Nashville urban plume, Journal of Geophysical Research, 107 (D12), 2002. Day, D.A., P.J. Wooldridge, M.B. Dillon, J.A. Thornton, R.C. Cohen, A thermal dissociation – laser induced fluorescence instrument for in situ detection of NO₂, peroxy(acyl)nitrates, alkylnitrates, and HNO₃, Journal of Geophysical Research, 107 (D6), 2002. Thornton, J.A., P.J. Wooldridge, and R.C. Cohen, Appendix D: Laser-induced fluorescence detection of NO₂, in Recommended Methods for Ambient Air Monitoring of NO, NO₂, NO_y, and Individual NO_z Species, edited by W.A. McClenny, pp. 62-68, Environmental Protection Agency, Research Triangle Park, 2001. Thornton, J.A., P.J. Wooldridge, R.C. Cohen, Atmospheric NO₂: In situ laser-induced fluorescence detection at parts per trillion mixing ratios, Analytical Chemistry, 72 (3), 528-539, 2000.

Scientific Interests: atmospheric chemistry, air pollution, climate change