December 18, 2018

Geospace Members

Below is a listing of the members of the Geospace group at the Space Sciences Lab. The groups Associate Director is Thomas Immel.

Photo of Oleksiy Agapitov

Oleksiy Agapitov

Spacecraft data processing and interpretation Electromagnetic wave propagation in magnetized plasmas Cyclotron resonant wave-particle interactions

Photo of John Bonnell

John Bonnell

Project Physicist

John W. Bonnell has been a Research Associate and Project Physicist at SSL since October 1999.  He specializes in the design, fabrication, assembly, test, and operation of antenna systems, receivers, and  signal processing hardware for the measurement of electric fields in space.   Read More…

Photo of Christopher Chaston

Christopher Chaston

Research Physicist

University of California, Berkeley, Space Sciences Laboratory

B.S. in Physics, University of Newcastle, Australia
PhD in Space Plasma Physics, University of Newcastle, Australia

Professional Background:
Space Physicist, UCB, 1996-2018
Future Fellow/Assoc. Read More…

Photo of Matthew Fillingim

Matthew Fillingim

Associate Research Physicist

My research focuses mainly on observations (both in-situ and remote) and simulations of space plasma processes and ionospheric electrodynamics primarily at Earth and Mars (but the same physics applies to any planetary object with an atmosphere). Read More…

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Harald Frey

Research Physicist

Harald Frey received his education in Germany and after 3 years in industry and 6 years at the Max-Planck-Institute for extraterrestrial physics he joined SSL in 1997. Read More…

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Brian Harding

Assistant Research Physicist

Brian Harding’s research is focused on understanding the dynamics of the upper atmosphere and the coupling between its neutral and ionized components. His interests range from instrumentation to data analysis to radiative transfer modeling, and he has developed ground- and space-based observational techniques in the optical, ultraviolet, infrared, and radio regimes. Read More…

Photo of Arthur Hull

Arthur Hull

Assistant Research Physicist

Photo of Thomas Immel

Thomas Immel

Research Physicist

Dr. Thomas Immel is a Senior Fellow at Space Sciences Laboratory, with a Ph. D. in Physics from the University of Alaska Fairbanks. His interests are in exploring the conditions in space near Earth, and learning to predict the behaviors in this system. Read More…

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Andreas Keiling

Research Physicist

Born in Berlin, Germany, Dr. Andreas Keiling was an undergraduate student at Imperial College, London, before moving to the University of Minnesota, where he completed his Ph.D. Read More…

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Solène Lejosne

Assistant Research Physicist

Solène Lejosne is an Assistant Researcher at the Space Sciences Laboratory at UC Berkeley, where she conducts research on the near-Earth space environment.

She grew up in the town of Givet, France. Read More…

Photo of Guiping Liu

Guiping Liu

Photo of Stephen Mende

Stephen Mende

Research Physicist

Research physicist specializing in studies observing light emitted by the atmosphere including aurora, airglow, sprites and lightning induced flashes and all atmospheric light shows in the visible and ultraviolet wavelength range using sensitive cameras and other instruments flown on spacecraft or operated from the ground. Read More…

Photo of Forrest Mozer

Forrest Mozer

Research Physicist

Forrest is an American experimental physicist, inventor, and entrepreneur known best for his pioneering work on electric field measurements in space plasma and for development of solid state electronic speech synthesizers and speech recognizers.

Photo of Marit Oieroset

Marit Oieroset

Research Physicist

Marit Oieroset is a Research Physicist at UC Berkeley’s Space Sciences Laboratory where she has been since 1998. She holds a Ph.D. from the University of Oslo, Department of Physics and was a postdoctoral fellow at the International Space Science Institute in Bern, Switzerland. Read More…

Photo of Mitsuo Oka

Mitsuo Oka

Associate Research Physicist

Mitsuo Oka has a broad interest in the kinetic properties of space plasma, including solar wind with interstellar-origin pickup ions, shocks, and magnetic reconnection. His recent primary focus has been on electron acceleration in solar flares and terrestrial plasma environment (including the bow shock and magnetotail). Read More…

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George Parks

Research Experience (1963-present)
Balloon and rocket experiments since 1963. Satellite borne experiments since 1967. Co-I on ATS-6 energetic particle experiment. Co-I on ISEE 1 and 2 energetic particle experiment. Read More…

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Tai Phan

Senior Fellow

Tai Phan received his Ph.D. from Dartmouth College in 1991. He worked at the Max-Planck Institute for Extraterrestrial Physics in Germany and at the National research Council of Canada before joining the Space Sciences Laboratory at UC Berkeley, where he is currently a Senior Fellow. Read More…

Photo of Ilan Roth

Ilan Roth

Assoc Res Physicist

Acceleration processes in magnetosphere/heliosphere, anomalous abundance due to resonance interaction, non-Markovian diffusion


  • BSc -Jerusalem
  • MSc-Weizman Institute
  • PhD-Tel Aviv

Colin Triplett

Assistant Research Physicist

Colin Triplett received his Ph.D. from the University of Alaska, Fairbanks in Atmospheric Sciences.  His research focuses on dynamics of the middle and upper atmosphere and how different scale waves interact and drive the atmospheric system.  Read More…

Photo of IVAN Vasko

IVAN Vasko

Assistant Reseacher

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