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 Planetary And Exoplanetary Atmospheres (3222): People
A. James Friedson's Picture
Jet Propulsion Laboratory
M/S 169-237
4800 Oak Grove Drive
Pasadena, CA 91109
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A. James Friedson

  • B.S. with honors in Physics, California Institute of Technology, Pasadena, California (1979)
  • M.S. in Physics, University of California, Los Angeles (1980)
  • Ph.D. in Planetary Science and Physics, California Institute of Technology (1986)

Research Interests
  • Planetary Atmospheric Dynamics
  • Aerosol Microphysics
  • Extrasolar Planet Chemistry and Dynamics
  • Mars Sample Return Back Planetary Protection

Professional Experience
  • Jet Propulsion Laboratory, Caltech - Research Scientist (1988-present)
  • Jet Propulsion Laboratory, Caltech - Graduate Research Assistant, Caltech NASA/National Research Council Resident Research Associate (1980-1986)
  • UCLA Graduate Teaching Assistant (1979-1980)

Selected Publications
  1. Friedson, A.J. and J.I. Moses 2012. General circulation and transport in Saturn's upper troposphere and stratosphere. Icarus 218, 861-875.
  2. Moses, J.I., Visscher, C., Fortney, J.J., Showman, A.P., Lewis, N.K., Griffith, C.A., Klippenstein, S.J., Shabram, M., Friedson, A.J., Marley, M.S., Freedman, R.S. (2011). Disequilibrium carbon, oxygen, and nitrogen chemistry in the atmospheres of HD 189733b and HD 209458b. Astrophys. J., 737, 15.
  3. Friedson, A.J., R.A. West, E.H. Wilson, F. Oyafuso, and G.S. Orton 2009. A global climate model of Titan's atmosphere and surface. Planet. Sp. Sci., 57, 1931-1949.
  4. Friedson, A.J. and D.J. Stevenson (1983). Viscosity of rock-ice mixtures and applications to the evolution of icy satellites. Icarus 56, 1-14.
  5. Friedson, A.J. and Y.L. Yung (1984). The thermosphere of Titan. J. Geophys. Res. 89, 85-90.
  6. Friedson, J. and A.P. Ingersoll (1987). The seasonal meridional energy balance and thermal structure of the atmosphere of Uranus; A radiative-convective-dynamical model. Icarus 69, 135-156.
  7. Orton, G. S., A. J. Friedson, et al. (1991). Thermal maps of Jupiter: Spatial organization and time dependence of stratospheric temperatures, 1980-1991. Science, 252, 537-542.
  8. Leovy, C. B., A. J. Friedson, and G. S. Orton (1991). The quasi-quadrennial oscillation of Jupiter's equatorial stratosphere. Nature 354, 380-382.
  9. West, R. A., A. J. Friedson, and J. F. Appleby (1992). Jovian large-scale stratospheric circulation, Icarus, 100, 245-259.
  10. Friedson, A.J. (1994). Gravity waves in Titan's atmosphere. Icarus 109, 40-57.
  11. Orton, G. S., A. J. Friedson, et al. (1994). Thermal maps of Jupiter: Spatial organization and time dependence of tropospheric temperatures, 1980-1993. Science 265, 625-631.
  12. Friedson, A.J., W.F. Hoffmann, J.D. Goguen, L.K. Deutsch, G.S. Orton, J.L. Hora, A. Dayal, J.N. Spitale, W.K. Wells, and G.G. Fazio (1995). Thermal infrared light curves of the impact of Comet Shoemaker-Levy 9 Fragment R. Geophys. Res. Lett. 22, 1569-1572.
  13. West, R.A., E. Karkoschka, A.J. Friedson, M. Seymour, K.H. Baines, and H.B. Hammel (1995). Impact debris particles in Jupiter's stratosphere, Science 267, 1296-1301.
  14. Orton, G., et al. (1996). Earth-based observations of the Galileo Probe entry site. Science 272, 839-840.
  15. Friedson, A.J. (1998). Formation of refractory grains in Shoemaker-Levy 9 fireballs. Icarus 131, 179-197.
  16. Ortiz, J.L., G.S. Orton, A.J. Friedson, S.T. Stewart, and J. Spencer 1998. Evolution and persistence of 5-JLm hot spots at the Galileo Probe entry latitude. J. Geophys. Res. 103, 23051-23069.
  17. Friedson, A.J. (1999). New observations and modelling of a QBO-like oscillation in Jupiter's stratosphere. Icarus 137, 34-55.
  18. Friedson, A.J., R.A. West, A. Hronek, N. Larsen, and N. Dalal (1999). Transport and mixing in Jupiter's stratosphere inferred from Comet S-L9 dust migration. Icarus 138, 141-156.
  19. Friedson, A.J., A-S. Wong, and Y.L. Yung 2002. Models for polar haze formation in Jupiter's stratosphere. Icarus 158, 389-400.
  20. Moses, J.I., T. Fouchet, R.V. Yelle, A.J. Friedson, G.S. Orton, B. Bezard, P. Drossart, G.R. Gladstone, T. Kostiuk, and T.A. Livengood 2003. The stratosphere of Jupiter. In Jupiter - The Planet, Satellites, and Magnetosphere, (F. Bagenal, W. McKinnon, and T. Dowling, Eds.) Cambridge University Press, p.129-158.
  21. West, R.A., K. Baines, D. Banfield, A.J. Friedson, B. Ragent, and F. Taylor 2003. Jovian Clouds and Haze. In Jupiter - The Planet, Satellites, and Magnetosphere, (F. Bagenal, W. McKinnon, and T. Dowling, Eds.) Cambridge University Press, p. 79-104.
  22. Wong, A-S., Y.L. Yung, and A.J. Friedson 2003. Benzene and haze formation in the polar atmosphere of Jupiter. Geophys Res. Lett. 30, 1-4.
  23. Rages, K.A., H.B. Hammel, and A.J. Friedson 2004. Evidence for temporal change at Uranus' south pole. Icarus 172, 548-554.
  24. Friedson, A.J. 2005. Water, ammonia, and H2S mixing ratios in Jupiter's five-micron hot spots: A dynamical model. Icarus 177, 1-17.

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