Los Alamos National Laboratory

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Joshua Daniel Carmichael

Joshua Carmichael

Phone (505) 667-5724


  • Computational Physics and Applied Mathematics
  • Partial differential equations
  • Applied Math
  • Statistics
  • Uncertainty quantification
  • Uncertainty analysis
  • Earth and Space Sciences
  • Geophysics
  • Hydrology
  • Transient signal recognition
  • Persistent surveillance
  • Sensor technology
  • Seismic analysis
  • Earthquakes
  • Materials
  • Shock physics
  • Nuclear Engineering and Technology
  • Nuclear systems - technology-oriented threat identification/resolution
  • Nuclear and Particle Physics, Astrophysics, and Cosmology
  • Detector expertise in nuclear threat reduction
  • Science of Signatures - Remote and Standoff Sensing
  • Seismic sensing and sensors
  • Ground-based sensing and sensors
  • Electromagnetics
  • Transient signal recognition,
  • Seismic analysis
  • Earthquakes
  • Real-time knowledge extraction



Statistical Signal Processing

Explosion Signatures




Applied Math

Current Emphasis

Multi-phenomenological detection and discrimination of explosions


Ph.D., Glacial Icequake Seismology, University of Washington Seismic Response in Hydraulically-Active Polar Ice: Observations and Methods, 2013

M.S., Applied Mathematics, University of Washington, 2008

B.S., Physics, Washington State University, 2004


LANL Positions

Postdoctoral Researcher,  Earth and Environmental Sciences, Geophysics Group (EES-17), September 2013 - present


Professional Societies

AGU - American Geophysical Union

IEEE - Institute of Electrical and Electronics Engineers



Joshua D. Carmichael (2016). A Waveform Detector that Targets Template-Decorrelated Signals and Achieves its Predicted Performance: Demonstration with IMS Data (Part I) Bulletin of the Seismological Society of America, 106(5), 16 pages.

Joshua D. Carmichael and Hans Hartse (2016). Threshold magnitudes for a multichannel correlation detector in background seismicity, Bulletin of the Seismological Society of America 106(2), 478-498.

Joshua D. Carmichael; Robert Nemzek; Stephen Arrowsmith; Kari Sentz (2016), Fusing geophysical signatures of locally recorded surface explosions to improve blast detection Geophysical Journal International 204 (3): 1838-1842 doi: 10.1093/gji/ggw006

Carmichael, Joshua D., I.R. Joughin, M.D. Behn, S. Das, M.A. King, L. Stevens and D. Lizarralde (2015), Seismicity on the Western Greenland Ice Sheet: Surface Fracture in the Vicinity of Active Moulins, Journal of Geophysical Research, Earth Surf. 120, doi: 10.1002/2014JF00398

Carmichael, Joshua D., Melt-Triggered Seismic Response in Hydraulically-Active Polar Ice: Observations and Methods, Ph.D. thesis, University of Washington, 2013

Carmichael, Joshua D., E. Pettit, M. J. Hoffman, A. G. Fountain, and B. Hallet, Seismic Multiplet Response Triggered by Melt at Blood Falls, Taylor Glacier, Antarctica, Journal of Geophysical Research, doi:10.1029/2011JF002221

University of Washington-PhD Thesis

Papers Currently Under Review

Carmichael, Josha D., Hartse, Hans E., Begnaud, Michael L., Ford, Sean R., Dodge, Doug A., Phillips, W. Scott, Anderson, Dale N. (2016) Submitted to: Defense Research Review, July 28 2016. Estimated 42 pages, 23 Figures.


Documents and Files