• Home
• About
• ScrippsNews
• Magazine
• Research
• Students
• Ships
• Support Scripps
• Jobs at Scripps
• SIO Only

Walker, Kris

Project Scientist

Degrees:

• B.S., University of Delaware
• M.S., Stanford University
• Ph.D., Stanford University

Research Interests:

• Atmospheric infrasound
• Seismic-acoustic coupling
• Imaging and array processing methods
• Seismic anisotropy
• Tectonics and geodynamics

Honors and Awards:

• 2004-07: Cecil and Ida Green Scholar
• 1998: Excellence in the Geosciences Award (Univ. of Delaware)
• 1998: Golden Key National Honor Society
• 1998: Phi Beta Kappa Honor Society
• 1996: Undergraduate Science and Engineering Scholarship (Univ. of Delaware)

Mentoring:

• Shelby, Richard (Other; 2009-2010)
• DeWolf, Scott (Graduate; 2008-2010)
• Robin, Matoza (Graduate; 2005-2006)

Walker, K. T., Shelby, R., Hedlin, M., de Groot-Hedlin, C., and Vernon, F., Illuminating infrasonic hotspots in the western U.S. with the USArray, JGR, submitted.

de Groot-Hedlin, C., Hedlin, M., and Walker, K., 2011, Finite difference synthesis of infrasound propagation through a windy, viscous atmosphere: application to a bolide explosion detected by seismic networks, Geophys. J. Int., doi: 10.1111/j.1365-246X.2010.04925.x

Walker, K.T., Hedlin, M.A.H., de Groot-Hedlin, C., Vergoz, J., Le Pichon, A., and Drob, D.P., 2010, Source location of the 19 February 2008 Oregon bolide using seismic networks and infrasound arrays, J. Geophys. Res., 115, B12329, doi:10.1029/2010JB007863.

Hedlin, M. A. H., Drob, D., Walker, K. T., and de Groot-Hedlin, C., 2010, A study of acoustic propagation from a large bolide in the atmosphere with a dense seismic network, J. Geophys. Res., 115, B12329, doi:10.1029/2010JB007863.

Walker, K.T., and Hedlin, M.A.H., 2010, A review of wind noise reduction methodologies, in: Infrasound Monitoring for Atmospheric Studies, ed. by A. Le Pichon, E. Blanc, and A. Hauchecorne, Springer, p. 141-182, doi:10.1007/978-1-4020-9508-5.

Walker, K.T., and Shearer, P., 2009, Illuminating the near-sonic rupture velocities of the intracontinental Kokoxili Mw 7.8 and Denali Mw 7.9 strike-slip earthquakes with global P-wave back projection imaging, J. Geophys. Res., 114, B02304, doi:10.1029/2008JB005738.

de Groot-Hedlin, C.D., Hedlin, M.A.H., Walker, K.T., Drob, D.P., and Zumberge, M.A., 2008, Study of infrasound propagation from the Shuttle Atlantis using a large seismic network, J. Acoust. Soc. Am., 123, 3829-3829.

Walker, K.T., Zumberge, M.A., Hedlin, M.A.H., and Shearer, P., 2008, Methods for determining infrasound phase velocity direction with an array of line sensors, J. Acoust. Soc. Am., 124, 2090-2099.

Walker, K.T., Bokelmann, G.H.R., Klemperer, S.L., Bock, G., and the Eifel plume team, 2007, Seismic anisotropy in the asthenosphere beneath the Eifel region, in: Mantle plumes – a multidisciplinary approach, ed. by J.R.R. Ritter and U.R. Christensen, Springer-Verlag, VIII, 439-464.

Walker, K.T., Ishii, M., and Shearer, P.M., 2005, Rupture details of the 28 March 2005 Sumatra Mw 8.6 earthquake imaged with teleseismic P waves, Geophys. Res. Lett., 32, L24303, doi:10.1029/2005GL024395.

Walker, K.T., Bokelmann, G.H.R., Klemperer, S.L., and Bock, G., 2005, Shear-wave splitting around the Eifel hotspot: Evidence for plume-related flow, Geophys. J. Int., 163, 962-980.

Walker, K.T., Bokelmann, G.H.R., Klemperer, S.L., and Nyblade, A., 2005, Shear-wave splitting around hotspots: Evidence for upwelling-related mantle flow?, Proceedings, Plume IV; Beyond the Plume Hypothesis; Tests of the plume paradigm and alternatives, G. Foulger, J.H. Natland, D.C. Presnall, and D.L. Anderson (Eds.), Geological Society of America Special Volume, 388, 171-192.

Walker, K.T., Nyblade, A.A., Bokelmann, G.H.R., Klemperer, S.L., and Owens, T.J., 2004, On the relationship between extension and anisotropy: Constraints from shear-wave splitting across the East African Plateau, J. Geophys. Res., 109, B08302, 10.1029/2003JB002866.

Walker, K.T., Bokelmann, G.H.R., and Klemperer, S.L., 2004, Shear-wave splitting beneath the Snake River Plain suggests a mantle upwelling beneath eastern Nevada, USA, Earth Planet. Sci. Lett., 222, 529-542.

Gashawbeza, E., Klemperer, S., Nyblade, A., Walker, K., and Keranen, K., 2004, Shear-wave splitting in Ethiopia: Precambrian mantle anisotropy locally modified by Neogene rifting, Geophys. Res. Let., 31, L18602, doi:10.1029/2004GL020471.

Walker, K.T., Bokelmann, G.H.R., and Klemperer, S.L., 2003, Splitting at H2O: Reply, Geophys. Res. Lett., 30, 1676, doi:10.1029/2002GL016712.

Walker, K.T., McGeary, S.E., and Klemperer, S.L., 2003, Tectonic evolution of the Bristol Bay basin, southeast Bering Sea: Constraints from seismic reflection and potential field data, Tectonics, 22, 1049, doi:10.1029/2002TC001359.

Walker, K.T., Bokelmann, G.H.R., and Klemperer, S.L., 2001, Shear-wave splitting to test mantle deformation models around Hawaii, Geophys. Res. Lett., 28, 4319-4322.