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Christopher D. Cappa
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RESEARCH
Professor Cappa's research is focused on the study of physical, chemical and optical properties of atmospheric aerosols. We use state-of-the-art analytical techniques in the lab and the field to characterize how and why aerosol properties vary in both time and space.
TEACHING
- ECI149 Air Pollution. Topics in air pollution.
- ECI150 Air Pollution Control Systems Design. Design and control of air pollution control devices and systems.
- ECI247L Aerosols Lab. Measurement techniques for aerosols.
- ECI289A Global Climate Change. Understanding basic principles and current topics in climate change science.
PUBLICATIONS
Smith, J.D.; Kroll, J.H.; Cappa, C.D.; Che, D.L.; Ahmed, M.; Leone, S.R.; Worsnop, D.R.; Wilson, K.R.; "The Heterogeneous Reaction of sub-micron Squalane Particles with OH Radicals: A Model System for Understanding the Oxidative Aging of Ambient Aerosols." Atmospheric Chemistry and Physics Discussions, 2009, 9, 3945-3981. (pdf)
Cappa, C.D.; Lovejoy, E.R.; Ravishankara, A.R.; “Evaporation and Non-Ideal Behavior of Multi-Component Organic Mixtures.” Proceedings of the National Academy of Sciences, 2008, 105, 18687-18691. (pdf)
Drisdell, W.S.; Smith, J.D.; Cappa, C.D.; Cohen, R.C.; Saykally, R.J.; “Determination of the Evaporation Coefficient of Liquid D2O via Raman Thermometry of Freely Evaporating Droplet Trains.” Atmospheric Chemistry and Physics, 2008, 8, 6699-6706. (pdf)
Lack, D.A.; Cappa, C.D.; Baynard, T.; Massoli, P.; Covert, D.; Sierau, B.; Bates, T.; Quinn, T.; Lovejoy, E.R.; Ravhishankara, A.R.; “Bias in filter based aerosol light absorption measurements due to organic aerosol loading: Evidence from ambient sampling.” Aerosol Science and Technology, 2008, 42(12), 1033-1041. (pdf)
Cappa, C.D.; Lack, D.A; Burkholder, J.B.; Ravishankara, A.R.; “Bias in filter based aerosol light absorption measurements due to organic aerosol loading: Evidence from laboratory measurements.” Aerosol Science and Technology, 2008, 42(12), 1022-1032. (pdf)
Cappa, C.D.; Smith, J.D.; Wilson, K.R.; Saykally,
R.J.; “Revisiting the Total Ion Yield X-ray Absorption Spectra of
Liquid Water
Microjets.” J. Phys. Cond.
Matt.,
2008, 20(20), Art. No. 205105. (pdf)
Cappa, C.D.;
Lovejoy, E.R.;
Ravishankara, A.R.; “Evaporation rates and vapor pressures of the
even-numbered
C8-C18 monocarboxylic
Acids.” J. Phys. Chem. A., 2008, 112(17), 3959. (pdf)
Cappa, C.D.;
Lovejoy, E.R.; Ravishankara, A.R.; “Determination of evaporation rates
and vapor pressures of very low volatility compounds: study of the
C4-C10 and C12 dicarboxylic acids.” J. Phys. Chem. A, 2007, 111(16),
3099.
*Cappa, C.D.;
Smith, J.D.; Messer, B.M.; Cohen, R.C.; Saykally, R.J.; “Nature of the
aqueous hydroxide ion probed by X-ray absorption spectroscopy.” J.
Phys. Chem. A., 2007, 111(22), 4776.
*Cover
article
Smith, J.D.; Cappa, C.D.; Messer, B.M.; Drisdell, W.S.; Cohen, R.C.; Saykally, R.J.; “Probing the local structure of liquid water using x-ray absorption spectroscopy.” J. Phys. Chem. B., 2006, 110(40), 20038.
Smith, J.D.; Cappa, C.D.; Drisdell, W.S.; Wilson, K.R.; Cohen, R.C.; Saykally, R.J.; “Raman thermometry measurements of free evaporation from liquid water droplets.” J. Am. Chem. Soc., 2006, 128(39), 12892.
Cappa, C.D.; Smith, J.D.; Messer, B.M.; Cohen, R.C.; Saykally, R.J.; “Effects of cations on the hydrogen bond network of liquid water: New results from X-ray absorption spectroscopy of liquid microjets.” J. Phys. Chem. B, 2006, 110, 5301.
Cappa, C.D.; Drisdell, W.S.; Smith, J.D.; Saykally, R.J.; Cohen, R.C.; “Isotope fractionation of water during evaporation without condensation.” J. Phys. Chem. B, 2005, 109(51), 24391.
Smith, J.D.;
Cappa, C.D.; Wilson, K.R.; Cohen, R.C.; Geissler, P.L.; Saykally, R.J.;
“Unified description of temperature-dependent hydrogen-bond
rearrangements in liquid water.” PNAS, 2005, 102(40), 14171
*Cappa, C.D.; Smith, J.D.; Wilson, K.R.; Messer, B.M.; Gilles, M.K.;
Cohen, R.C.; Saykally, R.J.; “Effects of alkali metal halide salts on
the hydrogen bond network of liquid water.” J. Phys. Chem. B, 2005,
109(15), 7046.
*Cover
article
Smith, J.D.;
Cappa, C.D.; Wilson, K.R.; Messer, B.M.; Cohen, R.C.; Saykally, R.J.;
“Energetics of hydrogen bond network rearrangement in liquid water.”
Science, 2004, 306, 851.
Cappa, C.D.; Wilson, K.R.; Messer, B.M.; Saykally, R.J.; Cohen R.C.;
“Optical cavity resonances in water micro-droplets: Implications for
shortwave cloud forcing.” Geophys. Res. Lett., 2004, 31, L1025,
doi:10.1029/2004GL019593.
Cappa, C.D.; Hendricks, M.B.; DePaolo, D.J.; Cohen, R.C., “Isotopic fractionation of water during evaporation.” J. Geophys. Res., 2003, 108(D16), Art.No. 4525.
