Ph.D. Atmospheric Science, University of Colorado - Boulder, 2008.


Research: Planetary atmospheres, surface-atmosphere interactions, planetary volatiles.

Field Experience

NASA Spaceward Bound – Idaho 2011, 2012, 2013.


  • Williams, Kaj E.; Timothy N. Titus; Chris H. Okubo; and Glen E. Cushing. (2017). Martian cave air-movement via Helmholtz resonance. International Journal of Speleology, 46: 439-444. 
  • Williams, K., J.L. Heldmann, C.P. McKay and M.T. Mellon. (2017) The effects of snow and salt on ice table stability in University Valley, Antarctica. Antarctic Science.1-12. doi:10.1017/S0954102017000402
  • Williams, Kaj, Christopher P. McKay and J.L Heldmann. (2015) Modeling the effects of Martian surface frost on ice table depth. Icarus, 261, 58-65.
  • Williams, Kaj and Chris McKay. (2015). Comparing flow-through and static ice cave models for Shoshone Ice Cave. International Journal of Speleology, 44: 1.
  • Heldmann, J. L., W. Pollard, C. P. Mckay, M. M. Marinova, A. Davila, K. E. Williams, D. Lacelle, and D. T. Andersen (2013), The high elevation Dry Valleys in Antarctica as analog sites for subsurface ice on Mars, Planetary and Space Science, 85(C),  doi:10.1016/j.pss.2013.05.019.
  • J.L. Heldmann, M. Marinova, K.E. Williams, D. Lacelle, C.P. McKay, A. Davila, W. Pollard and D.T. Andersen (2012). Formation and evolution of buried snowpack deposits in Pearse Valley, Antarctica, and implications for Mars. Antarctic Science, 24,  doi:10.1017/S0954102011000903
  • Williams, K. E., McKay, C. P. and Persson, F. (2012) The surface energy balance at the Huygens Landing site and the moist surface conditions on Titan. Planetary and Space Science. Vol 60, nr. 1.
  • Williams, K. E., Pappalardo, R. T. (2011) Variability in the Small Crater Population of Callisto. Icarus 215,1.
  • Williams, K.E., McKay, C. P., Toon, O.B., Head, J. W. (2010) Do Ice Caves Exist on Mars? Icarus 209,2.
  • Williams, K.E., Toon, O. B., Heldmann, J. L., Mellon, M. (2009) Ancient melting of mid-latitude snowpacks on Mars as a water source for gullies, Icarus, 200.
  • Williams, K.E., Toon, O.B., Heldmann, J.L. , McKay C.P. and Mellon, M. (2008) Stability of Mid-Latitude Snowpacks on Mars, Icarus, 196.
  • Williams, K. E., O. B. Toon, and J. Heldmann (2007), Modeling water ice lifetimes at recent Martian gully locations, Geophys. Res. Lett., 34, L09204, doi:10.1029/2007GL029507.
  • Lai, Y.C., Lerner, D, Williams, K and Crebogi, C. (Nov. 1999) Unstable dimension variability in coupled chaotic systems. Physical Review E 60 (5): 5445-5454 : A.