Copyright © National Academy of Sciences. All rights reserved.
Solar and Space Physics: A Science for a Technological Society
APPENDIX F
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an honorary doctorate in science from Colorado College, and has been elected a fellow of the AGU.
Dr. Thomsen received her Ph.D. in physics from the University of Iowa. She has served on a number of
committees and advisory and review panels for NASA, NSF, and the AGU. Dr. Thomsen served a term as
secretary for AGU’s Space Physics and Aeronomy Section (magnetosphere), has twice served as associate
editor for Geophysical Research Letters, and is currently on the editorial board of Space Science Reviews.
She is a member of NASA’s Heliophysics Advisory Subcommittee. Dr. Thomsen served a term as chair of
NASA’s former Earth-Sun Systems Subcommittee. She has served on the NRC’s Committee on Solar and
Space Physics and the 2003 Panel on Solar Wind and Magnetospheric Interactions.
MICHAEL WILTBERGER, Vice Chair, is a scientist at NCAR in the Earth and Sun Systems Laboratory of
the High Altitude Laboratory. A component of his work involves modeling of ionospheric outflows with
data from the Solar Extreme-ultraviolet Experiment (SEE) on the NASA TIMED satellite used as input to the
NCAR Thermosphere-Ionosphere-Electrodynamics General Circulation Model (TIE-GCM) for a simulation
spanning the declining phase of solar cycle 23 from 2001 to 2007. Model simulations of the neutral thermospheric density at ~400 km were compared with density measurements obtained from observations of
the atmospheric drag on five spherical satellites in low Earth orbit. Previously, Dr. Wiltberger served as a
research assistant professor in the Department of Astronomy at Dartmouth College. He has been published
in multiple scientific journals. NASA awarded him the group achievement award and the AGU awarded
him an outstanding student paper award in 1998. Dr. Wiltberger earned his B.S. in physics from Clarkson
University and his M.S. in physics and his Ph.D. in space plasma physics from the University of Maryland.
JOSEPH BOROVSKY is a scientist with the Space Science and Applications Group of LANL. A 19-year
veteran of LANL, he works primarily on NASA-funded research in space physics, plasma physics, and
surface physics. He served as a guest investigator at the Max Planck Institute for Aeronautics in Germany.
His recent efforts have been focused on turbulence, the aurora, and Earth’s magnetosphere. Dr. Borovsky
has contributed to numerous articles and professional journals. He is a member of and past editor for the
AGU. Dr. Borovsky earned his Ph.D. from the University of Iowa.
JOSEPH F. FENNELL is a distinguished scientist in the Space Science Applications Laboratory of the
Physical Sciences Laboratory at the Aerospace Corporation. Dr. Fennell has been heavily involved in the
development, fabrication, testing, and flight of many different particle instruments. These have covered
the range from auroral and magnetospheric plasma instruments to medium- and high-energy electron and
ion sensors. The most recent instrumentation efforts have been with the energetic particles and energetic
ion composition measurements on the SCATHA, VIKING, CRRES, POLAR, Cluster II, Radiation Belt Storm
Probe (RBSP), and operational Department of Defense satellites. His professional activity has included studies of artificially injected and natural geomagnetically trapped particles, solar cosmic rays, particle access
to the magnetosphere, particle transport within the magnetosphere, energetic particle composition, ring
current development, space radiation effects, and spacecraft charging and the impact the charging has on
satellite systems. Recent studies have included observations of radiation belt particle transport and losses;
studies of magnetic storm and substorm processes; high-altitude plasma sheet, cusp, plasma mantle, and
ring current composition studies; and studies of the plasma sheet boundary. He is a fellow of the AGU
and received the Aerospace Presidents Award for his work in satellite charging and its effects. Dr. Fennell
earned his Ph.D. in physics from Saint Louis University, Missouri. He has served on the NRC Committee
on Solar-Terrestrial Research, the Committee on Solar and Space Physics, the Panel on Solar Wind and
Magnetosphere Interactions for the 2003 solar and space physics decadal survey, and on the Committee
on the Societal and Economic Impacts of Severe Space Weather Events Workshop.
Solar and Space Physics: A Science for a Technological Society
APPENDIX F
391
an honorary doctorate in science from Colorado College, and has been elected a fellow of the AGU.
Dr. Thomsen received her Ph.D. in physics from the University of Iowa. She has served on a number of
committees and advisory and review panels for NASA, NSF, and the AGU. Dr. Thomsen served a term as
secretary for AGU’s Space Physics and Aeronomy Section (magnetosphere), has twice served as associate
editor for Geophysical Research Letters, and is currently on the editorial board of Space Science Reviews.
She is a member of NASA’s Heliophysics Advisory Subcommittee. Dr. Thomsen served a term as chair of
NASA’s former Earth-Sun Systems Subcommittee. She has served on the NRC’s Committee on Solar and
Space Physics and the 2003 Panel on Solar Wind and Magnetospheric Interactions.
MICHAEL WILTBERGER, Vice Chair, is a scientist at NCAR in the Earth and Sun Systems Laboratory of
the High Altitude Laboratory. A component of his work involves modeling of ionospheric outflows with
data from the Solar Extreme-ultraviolet Experiment (SEE) on the NASA TIMED satellite used as input to the
NCAR Thermosphere-Ionosphere-Electrodynamics General Circulation Model (TIE-GCM) for a simulation
spanning the declining phase of solar cycle 23 from 2001 to 2007. Model simulations of the neutral thermospheric density at ~400 km were compared with density measurements obtained from observations of
the atmospheric drag on five spherical satellites in low Earth orbit. Previously, Dr. Wiltberger served as a
research assistant professor in the Department of Astronomy at Dartmouth College. He has been published
in multiple scientific journals. NASA awarded him the group achievement award and the AGU awarded
him an outstanding student paper award in 1998. Dr. Wiltberger earned his B.S. in physics from Clarkson
University and his M.S. in physics and his Ph.D. in space plasma physics from the University of Maryland.
JOSEPH BOROVSKY is a scientist with the Space Science and Applications Group of LANL. A 19-year
veteran of LANL, he works primarily on NASA-funded research in space physics, plasma physics, and
surface physics. He served as a guest investigator at the Max Planck Institute for Aeronautics in Germany.
His recent efforts have been focused on turbulence, the aurora, and Earth’s magnetosphere. Dr. Borovsky
has contributed to numerous articles and professional journals. He is a member of and past editor for the
AGU. Dr. Borovsky earned his Ph.D. from the University of Iowa.
JOSEPH F. FENNELL is a distinguished scientist in the Space Science Applications Laboratory of the
Physical Sciences Laboratory at the Aerospace Corporation. Dr. Fennell has been heavily involved in the
development, fabrication, testing, and flight of many different particle instruments. These have covered
the range from auroral and magnetospheric plasma instruments to medium- and high-energy electron and
ion sensors. The most recent instrumentation efforts have been with the energetic particles and energetic
ion composition measurements on the SCATHA, VIKING, CRRES, POLAR, Cluster II, Radiation Belt Storm
Probe (RBSP), and operational Department of Defense satellites. His professional activity has included studies of artificially injected and natural geomagnetically trapped particles, solar cosmic rays, particle access
to the magnetosphere, particle transport within the magnetosphere, energetic particle composition, ring
current development, space radiation effects, and spacecraft charging and the impact the charging has on
satellite systems. Recent studies have included observations of radiation belt particle transport and losses;
studies of magnetic storm and substorm processes; high-altitude plasma sheet, cusp, plasma mantle, and
ring current composition studies; and studies of the plasma sheet boundary. He is a fellow of the AGU
and received the Aerospace Presidents Award for his work in satellite charging and its effects. Dr. Fennell
earned his Ph.D. in physics from Saint Louis University, Missouri. He has served on the NRC Committee
on Solar-Terrestrial Research, the Committee on Solar and Space Physics, the Panel on Solar Wind and
Magnetosphere Interactions for the 2003 solar and space physics decadal survey, and on the Committee
on the Societal and Economic Impacts of Severe Space Weather Events Workshop.