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 Asteroids, Comets & Satellites: People
Ashley Davies's Picture
Address:
Jet Propulsion Laboratory
M/S 183-501
4800 Oak Grove Drive
Pasadena, CA 91109
Phone:
818.393.1775
Fax:
818.393.4445
Email:

Ashley Davies

Education
  • B.Sc (Hons.) in Astronomy and Geology, Hatfield Polytechnic, Hatfield, Herts. UK (1984)
  • Ph.D. in Volcanology, Lancaster University, Lancaster, UK (1988)
Research Interests
  • Remote sensing of volcanic activity
  • Numerical modeling of volcanic processes to determine thermo-physical properties of eruptions from remote-sensing data
  • Science-driven spacecraft autonomy to facilitate higher science return from space missions
Professional Experience
  • Jet Propulsion Laboratory (1996 - present)
    • NMP-Autonomous Sciencecraft Experiment Lead Scientist (2001-present)
    • ASTER Team Associate (2004-present)
    • Research Scientist, Comets, Asteroids and Satellites Group (2003 - present)
    • Research Scientist, Galileo NIMS team (2001-2002)
    • Scientist, Galileo NIMS team (1996-2001)
  • National Research Council Resident Research Associate, NASA JPL (1994-1996)
  • UK Meteorological Office: Higher Scientific Officer (1990 - 1994)
    • ARTIFAX Systems Programmer (1990-1991)
    • Short-Range Forecast Division (Research Scientist)
Selected Awards
  • NASA Software of the Year - Autonomous Sciencecraft Experiment (2005)
  • NASA Group Achievement Award for the Autonomous Sciencecraft Experiment Team (2005)
  • Technical Innovation resulting in a NASA Tech Brief: "Software for the Techsat-21 Autonomous Sciencecraft Constellation (ASC)" (2003)
  • NASA Tech Brief award "Software for Onboard Science Analysis" (2003)
  • Technically Significant Technology Award "Software for the Techsat 21 Autonomous Sciencecraft Experiment (ASE)" (2003)
  • JPL Team Bonus Award: "Jupiter Icy Moon Orbiter (JIMO) Studies" (2003)
  • NASA Group Achievement Award to the Galileo Project Team (1998)
  • NASA Group Achievement Award to the Galileo Orbital Operations Recovery Team (1997)
  • National Research Council Postdoctoral Fellowship (1994-1996)
Selected Publications
Books
  1. Davies, A.G., Volcanism on Io: a comparison with Earth, Cambridge University Press, August 2007, ISBN 13: 978-0-521-85003-2.
Refereed Journal Publications
  1. Matson, D. L., A. G. Davies, J. A. Rathbun, G. J. Veeder, T. V. Johnson and J. C. Castillo (2006) Io: Loki Patera as a magma sea, JGR-Planets, 111, E09002, doi:10.1029/2006JE002703.
  2. Davies, A. G., L. Wilson, D. L. Matson, G. Leone, L. P. Keszthelyi and W. Jaeger (2006) The pulse of the volcano: discovery of episodic activity at Prometheus on Io, Icarus, 184, 460-477.
  3. Davies, A. G., S. Chien, V. Baker, T. Doggett, J. Dohm, R. Greeley, F. Ip, R. Casta o, B. Cichy, G. Rabideau, D. Tran and R. Sherwood (2006) Monitoring Active Volcanism with the Autonomous Sciencecraft Experiment on EO-1, Rem. Sens. Environ., 101, no. 4, 427-446.
  4. Davies, A. G., S. Chien, R. Wright, A. Miklius, P. R. Kyle, M. Welsh, J. B. Johnson, D. Tran, S. R. Schaffer, and R. Sherwood (2006) Sensor web enables rapid response to volcanic activity, Eos, 87 (1), 1&5.
  5. Davies, A. G., D. L. Matson, G. J. Veeder, T. V. Johnson and D. L. Blaney (2005) Post-solidification cooling and the age of Io's lava flows, Icarus, 176, 123-137.
  6. Milazzo M. P., L. P. Keszthelyi, J. Radebaugh, A. G. Davies, E. P. Turtle, P. Geissler, K. P. Klassen, J. A. Rathbun and A. S. McEwen (2005) Volcanic activity at Tvashtar Catena, Io, Icarus, in press.
  7. Marchis, F., D. Le Mignant, F.H. Chaffee, A.G. Davies, S.H. Kwok, R. Prang?, I. de Pater, P. Amico, R. Campbell, T. Fusco et al. (2005) Keck AO survey of Io global volcanic activity between 2 and 5 m, Icarus, 176, 96-122.
  8. Buratti, B. J., Hicks, M. D. and A. Davies (2005), Spectrophotometry of the small satellites of Saturn and their relationship to Iapetus, Phoebe, and Hyperion, Icarus, 175, 490-495.
  9. Chien, S., B. Cichy, A. G. Davies, D. Tran, G. Rabideau, R. Castano, R. Sherwood, D. Mandl, S. Frye, S. Schulman, J. Jones and S. Grosvenor (2005) An Autonomous Earth-Observing Sensorweb, IEEE Intelligent Systems, 20, no. 3, 16-24.
  10. dePater, I, F. Marchis, B. A. Macintosh, H. G. Roe, D. Le Mignant, J. R. Graham and A. G. Davies (2004) Keck AO Observations of Io in and out of eclipse, Icarus, 169, 250-263.
  11. Veeder G. J., D. L. Matson, T. V. Johnson, A. G. Davies and D. L. Blaney (2004) The polar contribution to the heat flow of Io, Icarus, 169, 264-270.
  12. Radebaugh, J., A. S. McEwen, M. Milazzo, L. Keszthelyi, A. G. Davies, E. Turtle and D. Dawson (2004) Observations and Temperatures of Ios Pele Patera from Cassini and Galileo Spacecraft Images, Icarus, 65-79.
  13. Schenk, P., R. Wilson and A. G. Davies (2004) Shield volcano topography and rheology of flows on Io, Icarus, 169, 98-110.
  14. Davies, A. G. (2003) Volcanism on Io: estimation of eruption parameters from Galileo NIMS data. J. Geophys. Res., 108, 5106-5120.
  15. Davies, A. G., (2003) Temperature, Age and Crust Thickness Distributions of Loki Patera on Io from Galileo NIMS data: Implications for Resurfacing Mechanism. Geophys. Res. Lettrs., 30, 2133-2136.
  16. Kargel, J. S., R. W. Carlson, A. G. Davies, B. Fegley Jr., A. Gillespie, R. Greeley, R. R. Howell, K. L. Jessup, L. Kamp, L. P. Keszthelyi, R. M. Lopes, T. J. MacIntyre, F. Marchis, A. S. McEwen, M. Milazzo, J. Perry, J. Radebaugh, L. Schaefer, N. Schmer, W. D. Smythe, J. R. Spencer, D. A. Williams, J. Zhang, and M. Zolotov (2003) Extreme Volcanism on Io: Latest Insights at the End of the Galileo Era. EOS, 84, no 33, 313 and 318.
  17. Rathbun, J., J. R. Spencer, A. G. Davies, R. R. Howell and L. Wilson (2002) Loki: a predictable volcano? Geophysical Research Letters, 29, no 10, 84-88.
  18. Marchis, F., I. dePater, A. G. Davies, H. G. Roe, T. Fusco, D. Le Mignant, P. Deschamps, B. A. Mackintosh and R. Prange (2002) high-resolution Keck adaptive optics imaging of violent activity on Io. Icarus, 160, 124-131.
  19. Davies, A. G., L. P. Keszthelyi, D. Williams, C. B. Phillips, A. S. McEwen, R. M. C. Lopes, W.D. Smythe, L. W. Kamp, L. A. Soderblom and R. W. Carlson (2001) Thermal signature, eruption style and eruption evolution at Pele and Pillan on Io. J. Geophys. Res., 106, E12, 33,079-33,104.
  20. Lopes, R. M. C., L. W. Kamp, S. Doute, W. D. Smythe, R. W. Carlson, A. S. McEwen, P. E. Geissler, S. W. Kieffer, F. E. Leader, A. G. Davies, E. Barbinis, R. Mehlman, M. Segura, J. Shirley and L. A. Soderblom (2001) Io in the near-infrared: NIMS results from the Galileo flybys in 1999 and 2000. J. Geophys. Res, 106, E12, 33,053-33,078.
  21. Matson, D. M., D. L. Blaney, T. V. Johnson, G. Veeder and A. G. Davies (2001) An upper boundary to Ios heat flow. J. Geophys. Res., 106, E12, 33,021-33,024.
  22. Williams, D. A., A. G. Davies, L. P. Keszthelyi and R. Greeley (2001a) The Summer 1997 eruption at Pillan Patera on Io: implications for ultrabasic lava flow emplacement, J. Geophys. Res., 106, E12, 33,105-33,120.
  23. Williams, D. A., R. Greeley, R. Lopes and A. G. Davies (2001b) Evaluation of sulfur flow emplacement on Io from Galileo data and numerical modelling, J. Geophys. Res., 106, E12, 33,161-33,174.
  24. Davies, A. G. (2001) Volcanism on Io: the view from Galileo. Astronomy and Geophysics, 42, 2, 10-15.
  25. Davies, A. G. and S. Bowler (2001) Extraterrestrial Active volcanism, Geoscientist, 11, no 8, 4-7.

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