keywords
- space weather
- Contact Info
Baker, Daniel N Distinguished Professor
Positions
- Institute Director, Laboratory for Atmospheric and Space Physics (LASP)
- Endowed/Named Professor, Research & Innovation Office
- Distinguished Professor, Astrophysical and Planetary Sciences (APS)
- Distinguished Professor, Physics
Research Areas
Research
Publications
selected publications
-
book
- Solar Dynamics and Its Effects on the Heliosphere and Earth. Ed. Baker, Daniel N. 2010
- Severe Space Weather Events--Understanding Societal and Economic Impacts 2009
- Space Science and the International Traffic in Arms Regulations 2008
- Assessment of Mission Size Trade-offs for NASA's Earth and Space Science Missions 2000
- New Perspectives on the Earth's Magnetotail. Ed. Baker, Daniel N. 1998
- Reconnection in the Solar Corona and Magnetospheric Substorms. Ed. Baker, Daniel N. 1997
-
chapter
- The Electronic Geophysical Year (eGY) 2011
-
Global-Scale Observations of the Limb and Disk (GOLD): New Observing Capabilities for the Ionosphere-Thermosphere.
Geophysical Monograph.
319-326.
2008
- Radiation belts and ring current 2007
- Nonequilibrium Phenomena in the Magnetosphere 2006
- Simulation study of SOC dynamics in driven current-sheet models 2006
- Structure and dynamics of the electron radiation belts: Implications for space weather modeling and forecasting 2006
- Comparison of MHD simulations of isolated and storm time substorms 2005
- Injection of energetic ions during the 31 March 0630 substorm 2005
- Introduction to space weather. Lecture Notes in Physics. 3-20. 2005
- Particle acceleration in the inner magnetosphere 2005
- Specifying and forecasting space weather threats to human technology. 1-25. 2004
- The Sun-Earth Connection 2003
- Satellite anomalies due to space storms 2001
- A Mercury Orbiter mission. Geophysical Monograph. 263-273. 1999
- ISTP and beyond: A solar-system telescope and a cosmic microscope. Geophysical Monograph. 1-9. 1999
- AL index prediction using data-derived nonlinear prediction filters 1998
- Acceleration of highly relativistic electrons in Earth’s outer radiation belts: Low-frequency wave interactions and global consequences 1998
- Present knowledge of the magnetosphere and outstanding remaining problems 1997
- High-Energy Electrons in Earth’s Magnetosphere: Their Effects and Methods of Prediction 1997
- Magnetospheric/Geomagnetic Working Group Report 1997
- MHD/Particle simulatios of radiation belt formation during a storm sudden commencement. Ed. Baker, Daniel N. 1996
- New magnetospheric results from the SAMPEX mission. AIP Conference Proceedings. 3-11. 1996
- Physicists at Work 1995
- The Magnetosphere of Mercury 1988
- An evaluation of the total magnetospheric energy output parameter 1987
- Bidirectional electron anisotropies in the distant tail: ISEE-3 observations of polar rain 1987
- Dialog on the relative roles of recon¬nection and the viscous interaction in providing solar- wind energy to the magnetosphere 1987
- Energetic ion and electron beams at the plasma sheet boundary in the distant tail 1987
- Plasma and magnetic field variations in the distant magnetotail associated with near-earth substorm effects 1987
- Superposed epoch analysis of magnetospheric substorms using solar wind, auroral zone, and geostationary orbit data sets 1987
- Impulsive ion acceleration in earth's outer magnetosphere, in Ion Acceleration in the Magnetosphere and Ionosphere 1986
- Linear Filters as a Method of Real-Time Prediction of Geomagnetic Activity 1986
- Magnetospheric impulse response to solar wind variations 1986
- Solar Wind - Magnetosphere Coupling and the Distant Magnetotail: ISEE-3 Observations 1986
- Solar wind-magnetosphere energy input functions 1986
- Statistical analyses in the study of solar wind-magnetosphere coupling 1986
- Implications of the 1100 UT March 22, 1979 CDAW-6 substorm event for the role of magnetic reconnection in the geomagnetic tail 1984
- Particle and field signatures of substorms in the near magnetotail 1984
- The July 29, 1977 magnetic storm: Observations and modeling of energetic particles at synchronous orbit 1982
- The Los Alamos synchronous orbit data set 1982
-
conference proceeding
-
Achievements and Challenges in the Science of Space Weather.
Space Science Reviews.
1137-1157.
2017
-
Anthropogenic Space Weather.
Space Science Reviews.
985-1039.
2017
- Radiation Belt Electron Enhancements: History and New Results from RBSP 2013
- Effects of Hostile Space Weather on Satellite Operations. 306-311. 2011
-
SAMPEX: A Long-Serving Radiation Belt Sentinel.
Geophysical Monograph.
21-40.
2011
-
Extreme Space Weather: Forecasting Behavior of a Nonlinear Dynamical System.
Geophysical Monograph.
255-265.
2010
- Perspectives on Geospace Plasma Coupling. AIP Conference Proceedings. 10-22. 2009
-
Nonlinear dynamics in the earth's magnetosphere.
53-+.
2006
-
Comparison of MHD simulations of isolated and storm time substorms.
Geophysical Monograph.
271-281.
2003
-
Injection of energetic ions during the 31 March 0630 substorm.
Geophysical Monograph.
147-154.
2003
-
Particle acceleration in the inner magnetosphere.
Geophysical Monograph.
73-85.
2003
- Specification of Energetic Magnetospheric Electrons. Geophysical Monograph. 321-328. 2001
- A substorm onset observed by the polar spacecraft in conjunction with the image chain. Esa Sp. 337-340. 2000
- The role of magnetospheric substorms in high-energy particle production within the Earth's magnetosphere. Esa Sp. 419-423. 2000
- Solar disturbances and correlated geospace responses: Relativistic magnetospheric electron acceleration. Esa Sp. 199-206. 1997
- ENERGETIC PROTON PENETRATION INTO EARTHS MAGNETOTAIL AT - 30 RE. 475-475. 1977
- ENERGETIC ELECTRONS OBSERVED IN CONJUNCTION WITH MAGNETOTAIL FIREBALL EVENTS. 314-314. 1976
-
Achievements and Challenges in the Science of Space Weather.
Space Science Reviews.
1137-1157.
2017
-
journal article
-
International Geophysical Year: Space Weather Impacts in February 1958.
Space Weather.
775-776.
2018
-
The Acceleration of Ultrarelativistic Electrons During a Small to Moderate Storm of 21 April 2017.
Geophysical Research Letters.
5818-5825.
2018
-
What Causes Radiation Belt Enhancements: A Survey of the Van Allen Probes Era.
Geophysical Research Letters.
5253-5259.
2018
-
Rapid Enhancements of the Seed Populations in the Heart of the Earth's Outer Radiation Belt: A Multicase Study.
Journal of Geophysical Research: Space Physics.
4895-4907.
2018
-
Statistical Study of Mercury's Energetic Electron Events as Observed by the Gamma-Ray and Neutron Spectrometer Instrument Onboard MESSENGER.
Journal of Geophysical Research: Space Physics.
4961-4978.
2018
-
The Global Statistical Response of the Outer Radiation Belt During Geomagnetic Storms.
Geophysical Research Letters.
3783-3792.
2018
-
An Empirical Model of Radiation Belt Electron Pitch Angle Distributions Based On Van Allen Probes Measurements.
Journal of Geophysical Research: Space Physics.
3493-3511.
2018
-
Radiation Belt "Dropouts" and Drift-Bounce Resonances in Broadband Electromagnetic Waves.
Geophysical Research Letters.
2128-2137.
2018
-
Quantitative Evaluation of Radial Diffusion and Local Acceleration Processes During GEM Challenge Events.
Journal of Geophysical Research: Space Physics.
1938-1952.
2018
-
Extreme Space Weather Events: From Cradle to Grave.
Space Science Reviews.
2018
-
Space Weather Effects in the Earth's Radiation Belts.
Space Science Reviews.
2018
-
Statistical Similarities Between WSA-ENLIL plus Cone Model and MAVEN in Situ Observations From November 2014 to March 2016.
Space Weather.
157-171.
2018
-
Modeling the Proton Radiation Belt With Van Allen Probes Relativistic Electron-Proton Telescope Data.
Journal of Geophysical Research: Space Physics.
685-697.
2018
-
Discovering Earth's radiation belts.
Physics Today.
46-51.
2017
-
Energetic Electron Acceleration and Injection During Dipolarization Events in Mercury's Magnetotail.
Journal of Geophysical Research: Space Physics.
12170-12188.
2017
-
Examining Coherency Scales, Substructure, and Propagation of Whistler Mode Chorus Elements With Magnetospheric Multiscale (MMS).
Journal of Geophysical Research: Space Physics.
11201-11226.
2017
-
Multipoint Observations of Energetic Particle Injections and Substorm Activity During a Conjunction Between Magnetospheric Multiscale (MMS) and Van Allen Probes.
Journal of Geophysical Research: Space Physics.
11481-11504.
2017
-
On the Effect of Geomagnetic Storms on Relativistic Electrons in the Outer Radiation Belt: Van Allen Probes Observations.
Journal of Geophysical Research: Space Physics.
11100-11108.
2017
-
Relativistic Electron Increase During Chorus Wave Activities on the 6-8 March 2016 Geomagnetic Storm.
Journal of Geophysical Research: Space Physics.
11302-11319.
2017
-
Diffusive Transport of Several Hundred keV Electrons in the Earth's Slot Region.
Journal of Geophysical Research: Space Physics.
10235-10246.
2017
-
Rapid Loss of Radiation Belt Relativistic Electrons by EMIC Waves.
Journal of Geophysical Research: Space Physics.
9880-9897.
2017
-
The effects of magnetospheric processes on relativistic electron dynamics in the Earth's outer radiation belt.
Journal of Geophysical Research: Space Physics.
9952-9968.
2017
-
Understanding the Mechanisms of Radiation Belt Dropouts Observed by Van Allen Probes.
Journal of Geophysical Research: Space Physics.
9858-9879.
2017
-
Statistical analysis of MMS observations of energetic electron escape observed at/beyond the dayside magnetopause.
Journal of Geophysical Research: Space Physics.
9440-9463.
2017
-
Radial transport of radiation belt electrons in kinetic field-line resonances.
Geophysical Research Letters.
8140-8148.
2017
-
The Role of Solar Wind Structures in the Generation of ULF Waves in the Inner Magnetosphere.
Solar Physics.
2017
-
Generation of lower and upper bands of electrostatic electron cyclotron harmonic waves in the Van Allen radiation belts.
Geophysical Research Letters.
5251-5258.
2017
-
Space weather research: Earth's radiation belts.
Space Weather.
742-745.
2017
-
A positive correlation between energetic electron butterfly distributions and magnetosonic waves in the radiation belt slot region.
Geophysical Research Letters.
3980-3990.
2017
-
Radiation belt electron dynamics at low L (< 4): Van Allen Probes era versus previous two solar cycles.
Journal of Geophysical Research: Space Physics.
5224-5234.
2017
-
Radiation belt seed population and its association with the relativistic electron dynamics: A statistical study.
Journal of Geophysical Research: Space Physics.
5261-5276.
2017
-
Roles of whistler mode waves and magnetosonic waves in changing the outer radiation belt and the slot region.
Journal of Geophysical Research: Space Physics.
5431-5448.
2017
-
Space physics and policy for contemporary society.
Journal of Geophysical Research: Space Physics.
4430-4435.
2017
-
Ultra-relativistic radiation belt extinction and ULF wave radial diffusion: Modeling the September 2014 extended dropout event.
Geophysical Research Letters.
2624-2633.
2017
-
Generation of extremely low frequency chorus in Van Allen radiation belts.
Journal of Geophysical Research: Space Physics.
3201-3211.
2017
-
Proton straggling in thick silicon detectors.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms.
145-152.
2017
-
On the relation between radiation belt electrons and solar wind parameters/ geomagnetic indices: Dependence on the first adiabatic invariant and L.
Journal of Geophysical Research: Space Physics.
1624-1642.
2017
-
Investigating the source of near-relativistic and relativistic electrons in Earth's inner radiation belt.
Journal of Geophysical Research: Space Physics.
695-710.
2017
-
SAMPEX observations of the South Atlantic anomaly secular drift during solar cycles 22-24.
Space Weather.
44-52.
2017
-
Simultaneous disappearances of plasmaspheric hiss, exohiss, and chorus waves triggered by a sudden decrease in solar wind dynamic pressure.
Geophysical Research Letters.
52-61.
2017
-
Van Allen Probes observations of prompt MeV radiation belt electron acceleration in nonlinear interactions with VLF chorus.
Journal of Geophysical Research: Space Physics.
324-339.
2017
-
Prompt injections of highly relativistic electrons induced by interplanetary shocks: A statistical study of Van Allen Probes observations.
Geophysical Research Letters.
12317-12324.
2016
-
Characteristic energy range of electron scattering due to plasmaspheric hiss.
Journal of Geophysical Research: Space Physics.
11737-11749.
2016
-
Prompt enhancement of the Earth's outer radiation belt due to substorm electron injections.
Journal of Geophysical Research: Space Physics.
11826-11838.
2016
-
Becoming a Space Weather-Ready Nation.
Space Weather.
935-936.
2016
-
EMIC waves and associated relativistic electron precipitation on 25-26 January 2013.
Journal of Geophysical Research: Space Physics.
11086-11100.
2016
-
Explaining the dynamics of the ultra-relativistic third Van Allen radiation belt.
Nature Physics.
978-983.
2016
-
Plasma physics and the 2013-2022 decadal survey in solar and space physics.
Plasma Physics and Controlled Fusion.
2016
-
Physical mechanism causing rapid changes in ultrarelativistic electron pitch angle distributions right after a shock arrival: Evaluation of an electron dropout event.
Journal of Geophysical Research: Space Physics.
8300-8316.
2016
-
The relationship between the plasmapause and outer belt electrons.
Journal of Geophysical Research: Space Physics.
8392-8416.
2016
-
Wave-induced loss of ultra-relativistic electrons in the Van Allen radiation belts.
Nature Communications.
2016
-
Rapid flattening of butterfly pitch angle distributions of radiation belt electrons by whistler-mode chorus.
Geophysical Research Letters.
8339-8347.
2016
-
Energy limits of electron acceleration in the plasma sheet during substorms: A case study with the Magnetospheric Multiscale (MMS) mission.
Geophysical Research Letters.
7785-7794.
2016
-
Prompt acceleration of magnetospheric electrons to ultrarelativistic energies by the 17 March 2015 interplanetary shock.
Journal of Geophysical Research: Space Physics.
7622-7635.
2016
-
Statistical properties of the radiation belt seed population.
Journal of Geophysical Research: Space Physics.
7636-7646.
2016
-
Energetic electron acceleration observed by MMS in the vicinity of an X-line crossing.
Geophysical Research Letters.
7356-7363.
2016
-
The influences of solar wind pressure and interplanetary magnetic field on global magnetic field and outer radiation belt electrons.
Geophysical Research Letters.
7319-7327.
2016
-
Compressional ULF wave modulation of energetic particles in the inner magnetosphere.
Journal of Geophysical Research: Space Physics.
6262-6276.
2016
-
Continuous solar wind forcing knowledge: Providing continuous conditions at Mars with the WSA-ENLIL plus Cone model.
Journal of Geophysical Research: Space Physics.
6207-6222.
2016
-
Direct evidence for EMIC wave scattering of relativistic electrons in space.
Journal of Geophysical Research: Space Physics.
6620-6631.
2016
-
Highly relativistic radiation belt electron acceleration, transport, and loss: Large solar storm events of March and June 2015.
Journal of Geophysical Research: Space Physics.
6647-6660.
2016
-
Nonstorm time dropout of radiation belt electron fluxes on 24 September 2013.
Journal of Geophysical Research: Space Physics.
6400-6416.
2016
-
A telescopic and microscopic examination of acceleration in the June 2015 geomagnetic storm: Magnetospheric Multiscale and Van Allen Probes study of substorm particle injection.
Geophysical Research Letters.
6051-6059.
2016
-
Microinjections observed by MMS FEEPS in the dusk to midnight region.
Geophysical Research Letters.
6078-6086.
2016
-
Observations of energetic particle escape at themagnetopause: Early results from the MMS Energetic Ion Spectrometer (EIS).
Geophysical Research Letters.
5960-5968.
2016
-
Electron dropout echoes induced by interplanetary shock: Van Allen Probes observations.
Geophysical Research Letters.
5597-5605.
2016
-
Electron-scale measurements of magnetic reconnection in space.
Science.
2016
-
Observations of the impenetrable barrier, the plasmapause, and the VLF bubble during the 17 March 2015 storm.
Journal of Geophysical Research: Space Physics.
5537-5548.
2016
-
Radiation belt electron acceleration during the 17 March 2015 geomagnetic storm: Observations and simulations.
Journal of Geophysical Research: Space Physics.
5520-5536.
2016
-
Transient, small-scale field-aligned currents in the plasma sheet boundary layer during storm time substorms.
Geophysical Research Letters.
4841-4849.
2016
-
Evolution of chorus emissions into plasmaspheric hiss observed by Van Allen Probes.
Journal of Geophysical Research: Space Physics.
4518-4529.
2016
-
Simulation of energy-dependent electron diffusion processes in the Earth's outer radiation belt.
Journal of Geophysical Research: Space Physics.
4217-4231.
2016
-
Formation of energetic electron butterfly distributions by magnetosonic waves via Landau resonance.
Geophysical Research Letters.
3009-3016.
2016
-
A neural network approach for identifying particle pitch angle distributions in Van Allen Probes data.
Space Weather.
275-284.
2016
-
Ring current electron dynamics during geomagnetic storms based on the Van Allen Probes measurements.
Journal of Geophysical Research: Space Physics.
3333-3346.
2016
-
Ultrarelativistic electron butterfly distributions created by parallel acceleration due to magnetosonic waves.
Journal of Geophysical Research: Space Physics.
3212-3222.
2016
-
Intense energetic electron flux enhancements in Mercury's magnetosphere: An integrated view with high-resolution observations from MESSENGER.
Journal of Geophysical Research: Space Physics.
2171-2184.
2016
-
Inward diffusion and loss of radiation belt protons.
Journal of Geophysical Research: Space Physics.
1969-1978.
2016
-
Magnetospheric Multiscale Instrument Suite Operations and Data System.
Space Science Reviews.
545-575.
2016
-
RESOURCE LETTER SW1: SPACE WEATHER.
American Journal of Physics.
166-180.
2016
-
The Energetic Particle Detector (EPD) Investigation and the Energetic Ion Spectrometer (EIS) for the Magnetospheric Multiscale (MMS) Mission.
Space Science Reviews.
471-514.
2016
-
The Fly's Eye Energetic Particle Spectrometer (FEEPS) Sensors for the Magnetospheric Multiscale (MMS) Mission.
Space Science Reviews.
309-329.
2016
-
Van Allen Probes, THEMIS, GOES, and Cluster observations of EMIC waves, ULF pulsations, and an electron flux dropout.
Journal of Geophysical Research: Space Physics.
1990-2008.
2016
-
Outer radiation belt dropout dynamics following the arrival of two interplanetary coronal mass ejections.
Geophysical Research Letters.
978-987.
2016
-
The Global Positioning System constellation as a space weather monitor: Comparison of electron measurements with Van Allen Probes data.
Space Weather.
76-92.
2016
-
MESSENGER observations of suprathermal electrons in Mercury's magnetosphere.
Geophysical Research Letters.
550-555.
2016
-
Energy-dependent dynamics of keV to MeV electrons in the inner zone, outer zone, and slot regions.
Journal of Geophysical Research: Space Physics.
397-412.
2016
-
Characterizing Atmospheric Escape from Mars Today and Through Time, with MAVEN.
Space Science Reviews.
357-422.
2015
-
Multiple loss processes of relativistic electrons outside the heart of outer radiation belt during a storm sudden commencement.
Journal of Geophysical Research: Space Physics.
10275-10288.
2015
-
Ultra-low-frequency wave-driven diffusion of radiation belt relativistic electrons.
Nature Communications.
2015
-
Combined convective and diffusive simulations: VERB-4D comparison with 17 March 2013 Van Allen Probes observations.
Geophysical Research Letters.
9600-9608.
2015
-
Early MAVEN Deep Dip campaign reveals thermosphere and ionosphere variability.
Science.
2015
-
MAVEN observations of the response of Mars to an interplanetary coronal mass ejection.
Science.
2015
-
Correlated Pc4-5 ULF waves, whistler-mode chorus, and pulsating aurora observed by the Van Allen Probes and ground-based systems.
Journal of Geophysical Research: Space Physics.
8749-8761.
2015
-
Long-duration neutron production by nonflaring transients in the solar corona.
Journal of Geophysical Research: Space Physics.
8247-8266.
2015
-
Wave-driven butterfly distribution of Van Allen belt relativistic electrons.
Nature Communications.
2015
-
Penetration of magnetosonic waves into the plasmasphere observed by the Van Allen Probes.
Geophysical Research Letters.
7287-7294.
2015
-
Solar wind conditions leading to efficient radiation belt electron acceleration: A superposed epoch analysis.
Geophysical Research Letters.
6906-6915.
2015
-
Relativistic electron response to the combined magnetospheric impact of a coronal mass ejection overlapping with a high-speed stream: Van Allen Probes observations.
Journal of Geophysical Research: Space Physics.
7629-7641.
2015
-
Source and seed populations for relativistic electrons: Their roles in radiation belt changes.
Journal of Geophysical Research: Space Physics.
7240-7254.
2015
-
The evolution of ring current ion energy density and energy content during geomagnetic storms based on Van Allen Probes measurements.
Journal of Geophysical Research: Space Physics.
7493-7511.
2015
-
Near-Earth injection of MeV electrons associated with intense dipolarization electric fields: Van Allen Probes observations.
Geophysical Research Letters.
6170-6179.
2015
-
Van Allen Probes observation and modeling of chorus excitation and propagation during weak geomagnetic activities.
Journal of Geophysical Research: Space Physics.
6371-6385.
2015
-
Improving solar wind modeling at Mercury: Incorporating transient solar phenomena into the WSA-ENLIL model with the Cone extension.
Journal of Geophysical Research: Space Physics.
5667-5685.
2015
-
Van Allen probes, NOAA, GOES, and ground observations of an intense EMIC wave event extending over 12 h in magnetic local time.
Journal of Geophysical Research: Space Physics.
5465-5488.
2015
-
Pool knowledge to stem losses from disasters.
Nature: New biology.
277-279.
2015
-
Variability of the pitch angle distribution of radiation belt ultrarelativistic electrons during and following intense geomagnetic storms: Van Allen Probes observations.
Journal of Geophysical Research: Space Physics.
4863-4876.
2015
-
MESSENGER observations of magnetospheric substorm activity in Mercury's near magnetotail.
Geophysical Research Letters.
3692-3699.
2015
-
Disappearance of plasmaspheric hiss following interplanetary shock.
Geophysical Research Letters.
3129-3140.
2015
-
Energetic, relativistic, and ultrarelativistic electrons: Comparison of long-term VERB code simulations with Van Allen Probes measurements.
Journal of Geophysical Research: Space Physics.
3574-3587.
2015
-
Comprehensive survey of energetic electron events in Mercury's magnetosphere with data from the MESSENGER Gamma-Ray and Neutron Spectrometer.
Journal of Geophysical Research: Space Physics.
2851-2876.
2015
-
Van Allen Probes show that the inner radiation zone contains no MeV electrons: ECT/MagEIS data.
Geophysical Research Letters.
1283-1289.
2015
-
On the use of drift echoes to characterize on-orbit sensor discrepancies.
Journal of Geophysical Research: Space Physics.
2076-2087.
2015
-
Shock-induced prompt relativistic electron acceleration in the inner magnetosphere.
Journal of Geophysical Research: Space Physics.
1661-1674.
2015
-
Modeling inward diffusion and slow decay of energetic electrons in the Earth's outer radiation belt.
Geophysical Research Letters.
987-995.
2015
-
Plasmatrough exohiss waves observed by Van Allen Probes: Evidence for leakage from plasmasphere and resonant scattering of radiation belt electrons.
Geophysical Research Letters.
1012-1019.
2015
-
Modeling CME-shock-driven storms in 2012-2013: MHD test particle simulations.
Journal of Geophysical Research: Space Physics.
1168-1181.
2015
-
Upper limit on the inner radiation belt MeV electron intensity.
Journal of Geophysical Research: Space Physics.
1215-1228.
2015
-
Van Allen Probes observations linking radiation belt electrons to chorus waves during 2014 multiple storms.
Journal of Geophysical Research: Space Physics.
938-948.
2015
-
Characteristics of pitch angle distributions of hundreds of keV electrons in the slot region and inner radiation belt.
Journal of Geophysical Research: Space Physics.
2014
-
Evolution of relativistic outer belt electrons during an extended quiescent period.
Journal of Geophysical Research: Space Physics.
2014
-
Quantifying the relative contributions of substorm injections and chorus waves to the rapid outward extension of electron radiation belt.
Journal of Geophysical Research: Space Physics.
2014
-
An impenetrable barrier to ultrarelativistic electrons in the Van Allen radiation belts.
Nature: New biology.
531-+.
2014
-
Excitation of nightside magnetosonic waves observed by Van Allen Probes.
Journal of Geophysical Research: Space Physics.
9125-9133.
2014
-
MESSENGER observations of Mercury's dayside magnetosphere under extreme solar wind conditions.
Journal of Geophysical Research: Space Physics.
8087-8116.
2014
-
New Twists in Earth's Radiation Belts.
American Scientist.
374-381.
2014
-
The importance of storm time steady magnetospheric convection in determining the final relativistic electron flux level.
Journal of Geophysical Research: Space Physics.
2014
-
Ion kinetic properties in Mercury's pre-midnight plasma sheet.
Geophysical Research Letters.
5740-5747.
2014
-
Observations of the inner radiation belt: CRAND and trapped solar protons.
Journal of Geophysical Research: Space Physics.
2014
-
Intense duskside lower band chorus waves observed by Van Allen Probes: Generation and potential acceleration effect on radiation belt electrons.
Journal of Geophysical Research: Space Physics.
4266-4273.
2014
-
Radiation belt electron acceleration by chorus waves during the 17 March 2013 storm.
Journal of Geophysical Research: Space Physics.
4681-4693.
2014
-
Chorus acceleration of radiation belt relativistic electrons during March 2013 geomagnetic storm.
Journal of Geophysical Research: Space Physics.
3325-3332.
2014
-
Peculiar pitch angle distribution of relativistic electrons in the inner radiation belt and slot region.
Geophysical Research Letters.
2250-2257.
2014
-
Quantifying the radiation belt seed population in the 17 March 2013 electron acceleration event.
Geophysical Research Letters.
2275-2281.
2014
-
Direct calculation of the ring current distribution and magnetic structure seen by Cluster during geomagnetic storms.
Journal of Geophysical Research: Space Physics.
2458-2465.
2014
-
Effect of EMIC waves on relativistic and ultrarelativistic electron populations: Ground- based and Van Allen Probes observations.
Geophysical Research Letters.
1375-1381.
2014
-
Event-specific chorus wave and electron seed population models in DREAM3D using the Van Allen Probes.
Geophysical Research Letters.
1359-1366.
2014
-
Gradual diffusion and punctuated phase space density enhancements of highly relativistic electrons: Van Allen Probes observations.
Geophysical Research Letters.
1351-1358.
2014
-
Competing source and loss mechanisms due to wave-particle interactions in Earth's outer radiation belt during the 30 September to 3 October 2012 geomagnetic storm.
Journal of Geophysical Research: Space Physics.
1960-1979.
2014
-
On the cause and extent of outer radiation belt losses during the 30 September 2012 dropout event.
Journal of Geophysical Research: Space Physics.
1530-1540.
2014
-
Simulated magnetopause losses and Van Allen Probe flux dropouts.
Geophysical Research Letters.
1113-1118.
2014
-
An empirically observed pitch-angle diffusion eigenmode in the Earth's electron belt near L*=5.0.
Geophysical Research Letters.
251-258.
2014
-
Nonstorm time dynamics of electron radiation belts observed by the Van Allen Probes.
Geophysical Research Letters.
229-235.
2014
-
Prompt energization of relativistic and highly relativistic electrons during a substorm interval: Van Allen Probes observations.
Geophysical Research Letters.
20-25.
2014
-
Rapid local acceleration of relativistic radiation-belt electrons by magnetospheric chorus.
Nature: New biology.
411-+.
2013
-
Simulation of the 23 July 2012 extreme space weather event: What if this extremely rare CME was Earth directed?.
Space Weather.
671-679.
2013
-
Discovery of the action of a geophysical synchrotron in the Earth's Van Allen radiation belts.
Nature Communications.
2013
-
Magnetic flux pileup and plasma depletion in Mercury's subsolar magnetosheath.
Journal of Geophysical Research: Space Physics.
7181-7199.
2013
-
Science Goals and Overview of the Radiation Belt Storm Probes (RBSP) Energetic Particle, Composition, and Thermal Plasma (ECT) Suite on NASA's Van Allen Probes Mission.
Space Science Reviews.
311-336.
2013
-
The Electric Field and Waves Instruments on the Radiation Belt Storm Probes Mission.
Space Science Reviews.
183-220.
2013
-
The Relativistic Electron-Proton Telescope (REPT) Instrument on Board the Radiation Belt Storm Probes (RBSP) Spacecraft: Characterization of Earth's Radiation Belt High-Energy Particle Populations.
Space Science Reviews.
337-381.
2013
-
Unusual stable trapping of the ultrarelativistic electrons in the Van Allen radiation belts.
Nature Physics.
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2013
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A major solar eruptive event in July 2012: Defining extreme space weather scenarios.
Space Weather.
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2013
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First results from CSSWE CubeSat: Characteristics of relativistic electrons in the near-Earth environment during the October 2012 magnetic storms.
Journal of Geophysical Research: Space Physics.
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Phase Space Density matching of relativistic electrons using the Van Allen Probes: REPT results.
Geophysical Research Letters.
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Van Allen Probes observation of localized drift resonance between poloidal mode ultra-low frequency waves and 60 keV electrons.
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Electron Acceleration in the Heart of the Van Allen Radiation Belts.
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Excitation of poloidal standing Alfven waves through drift resonance wave-particle interaction.
Geophysical Research Letters.
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Professional Societies and Space Weather Policy.
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Evolution and slow decay of an unusual narrow ring of relativistic electrons near L similar to 3.2 following the September 2012 magnetic storm.
Geophysical Research Letters.
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Changes in solar wind-magnetosphere coupling with solar cycle, season, and time relative to stream interfaces.
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Mercury's magnetopause and bow shock from MESSENGER Magnetometer observations.
Journal of Geophysical Research: Space Physics.
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A Long-Lived Relativistic Electron Storage Ring Embedded in Earth's Outer Van Allen Belt.
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Distribution and compositional variations of plasma ions in Mercury's space environment: The first three Mercury years of MESSENGER observations.
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MESSENGER observations of magnetopause structure and dynamics at Mercury.
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Science for a Technological Society: The 2013-2022 Decadal Survey in Solar and Space Physics.
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Solar wind forcing at Mercury: WSA-ENLIL model results.
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Acceleration of Particles to High Energies in Earth's Radiation Belts.
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Particle Acceleration in the Magnetotail and Aurora.
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Spatial distribution and spectral characteristics of energetic electrons in Mercury's magnetosphere.
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MESSENGER observations of dipolarization events in Mercury's magnetotail.
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Let academia lead space science.
Nature: New biology.
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NASA: Let academia lead space science..
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The Third Electric Infrastructure Security World Summit Meeting.
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SAMPEX to Reenter Atmosphere: Twenty-Year Mission Will End.
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Reply to comment by Joseph E. Mazur and T. Paul O'Brien on "Analysis of GEO spacecraft anomalies: Space weather relationships".
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MESSENGER and Mariner 10 flyby observations of magnetotail structure and dynamics at Mercury.
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The role of Shabansky orbits in compression-related electromagnetic ion cyclotron wave growth.
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Electron transport and precipitation at Mercury during the MESSENGER flybys: Implications for electron-stimulated desorption.
Planetary and Space Science.
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MESSENGER observations of the plasma environment near Mercury.
Planetary and Space Science.
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Observations of suprathermal electrons in Mercury's magnetosphere during the three MESSENGER flybys.
Planetary and Space Science.
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The interplanetary magnetic field environment at Mercury's orbit.
Planetary and Space Science.
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The space environment of Mercury at the times of the second and third MESSENGER flybys.
Planetary and Space Science.
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Behavior of MeV electrons at geosynchronous orbit during last two solar cycles.
Journal of Geophysical Research: Space Physics.
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Chapman Conference on the Earth's radiation belts and the inner magnetosphere.
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MESSENGER Observations of Transient Bursts of Energetic Electrons in Mercury's Magnetosphere.
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MESSENGER Observations of the Spatial Distribution of Planetary Ions Near Mercury.
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On energetic electrons (> 38 keV) in the central plasma sheet: Data analysis and modeling.
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2011
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Profound change of the near-Earth radiation environment caused by solar superstorms.
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Analysis of GEO spacecraft anomalies: Space weather relationships.
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The Role of Universities in a Vigorous National Space Weather Program.
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Using a global magnetohydrodynamic model to study the start of the substorm recovery phase.
Journal of Geophysical Research.
2010
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Physical mechanisms of compressional EMIC wave growth.
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Mercury's magnetospheric magnetic field after the first two MESSENGER flybys.
Icarus.
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Mercury’s magnetosphere–solar wind interaction for northward and southward interplanetary magnetic field: Hybrid simulation results.
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Modeling of the magnetosphere of Mercury at the time of the first MESSENGER flyby.
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MESSENGER Observations of Extreme Loading and Unloading of Mercury's Magnetic Tail.
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MESSENGER observations of large flux transfer events at Mercury.
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Evidence for extended acceleration of solar flare ions from 1-8 MeV solar neutrons detected with the MESSENGER Neutron Spectrometer.
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Is the Silver Screen the Key to Successful Public Outreach in Solar and Space Physics?.
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On the seasonal dependence of relativistic electron fluxes.
Annales Geophysicae.
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Cluster observations of energetic electron flux variations within the plasma sheet.
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Energetic electron response to ULF waves induced by interplanetary shocks in the outer radiation belt.
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Space environment of Mercury at the time of the first MESSENGER flyby: Solar wind and interplanetary magnetic field modeling of upstream conditions.
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Modeling EMIC wave growth during the compression event of 29 June 2007.
Geophysical Research Letters.
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Aeronomy of Ice in the Mesosphere receiver/communication lock analysis: When bad space weather is good.
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Relativistic electron loss timescales in the slot region.
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Modeling the deep penetration of outer belt electrons during the "Halloween" magnetic storm in 2003.
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Energetic plasma sheet electrons and their relationship with the solar wind: A Cluster and Geotail study.
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What Does Space Weather Cost Modern Societies?.
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EGY: Progress in Global Earth and Space Science Informatics.
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Using Virtual Observatories for Heliophysics Research.
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Complexities of a 3-D plasmoid flux rope as shown by an MHD simulation.
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Informatics and the 2007-2008 Electronic Geophysical Year.
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A Continuous L1 Presence Required for Space Weather.
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Solar cycle changes, geomagnetic variations, and energetic particle properties in the inner magnetosphere.
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Geophysical Research Letters.
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Physical models of the geospace radiation environment.
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1998
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1998
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The nonlinearity of models of the vB(south)-AL coupling.
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1996
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Researchers chart course for updating radiation belt models.
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Geophysical Research Letters.
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Geophysical Research Letters.
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Geophysical Research Letters.
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Planetary and Space Science.
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1984
-
EVIDENCE FOR SLOW-MODE SHOCKS IN THE DEEP GEOMAGNETIC TAIL.
Geophysical Research Letters.
599-602.
1984
-
EVOLUTION OF THE EARTHS DISTANT MAGNETOTAIL - ISEE-3 ELECTRON-PLASMA RESULTS.
Journal of Geophysical Research.
1007-1012.
1984
-
HIGH-ENERGY PROTON DRIFT ECHOES - MULTIPLE PEAK STRUCTURE.
Journal of Geophysical Research.
9101-9106.
1984
-
MICROSTRUCTURE OF MAGNETIC RECONNECTION IN EARTHS MAGNETOTAIL.
Journal of Geophysical Research.
6705-6716.
1984
-
PLASMA ENTRY INTO THE DISTANT TAIL LOBES - ISEE-3.
Geophysical Research Letters.
1078-1081.
1984
-
POWER DISSIPATION AT SLOW-MODE SHOCKS IN THE DISTANT GEOMAGNETIC TAIL.
Geophysical Research Letters.
1058-1061.
1984
-
SIMULTANEOUS OBSERVATION OF THE PLASMA SHEET IN THE NEAR EARTH AND DISTANT MAGNETOTAIL - ISEE-1 AND ISEE-3.
Geophysical Research Letters.
1034-1037.
1984
-
STRUCTURE OF THE MAGNETOTAIL AT 220-RE AND ITS RESPONSE TO GEOMAGNETIC-ACTIVITY.
Geophysical Research Letters.
5-7.
1984
-
SUBSTORM ASSOCIATED TRAVELING COMPRESSION REGIONS IN THE DISTANT TAIL - ISEE-3 GEOTAIL OBSERVATIONS.
Geophysical Research Letters.
657-660.
1984
-
A DETERMINATION OF THE CHARGE STATE OF ENERGETIC MAGNETOSPHERIC IONS BY THE OBSERVATION OF DRIFT ECHOES.
Geophysical Research Letters.
1211-1214.
1983
-
AN ISEE-3 HIGH TIME RESOLUTION STUDY OF INTERPLANETARY PARAMETER CORRELATIONS WITH MAGNETOSPHERIC ACTIVITY.
Journal of Geophysical Research.
6230-6242.
1983
-
DEVELOPMENT OF SUBSTORM ACTIVITY IN MULTIPLE-ONSET SUBSTORMS AT SYNCHRONOUS ORBIT.
Journal of Geophysical Research.
6994-7004.
1983
-
PLASMA REGIMES IN THE DEEP GEOMAGNETIC TAIL - ISEE-3.
Geophysical Research Letters.
912-915.
1983
-
LION ROARS AND NONOSCILLATORY DRIFT MIRROR WAVES IN THE MAGNETOSHEATH.
Journal of Geophysical Research.
6060-6072.
1982
-
MULTIPLE-SPACECRAFT AND CORRELATED RIOMETER STUDY OF MAGNETOSPHERIC SUBSTORM PHENOMENA.
Journal of Geophysical Research.
6121-6136.
1982
-
OBSERVATION AND MODELING OF ENERGETIC PARTICLES AT SYNCHRONOUS ORBIT ON JULY 29, 1977.
Journal of Geophysical Research.
5917-5932.
1982
-
PLASMA BEHAVIOR DURING ENERGETIC ELECTRON STREAMING EVENTS - FURTHER EVIDENCE FOR SUBSTORM-ASSOCIATED MAGNETIC RECONNECTION.
Geophysical Research Letters.
664-667.
1982
-
THE GLOBAL PC-5 EVENT OF NOVEMBER 14-15, 1979.
Journal of Geophysical Research.
2337-2345.
1982
-
THE POSSIBLE ROLE OF IONOSPHERIC OXYGEN IN THE INITIATION AND DEVELOPMENT OF PLASMA SHEET INSTABILITIES.
Geophysical Research Letters.
1337-1340.
1982
-
THE SSC ON JULY 29, 1977 AND ITS PROPAGATION WITHIN THE MAGNETOSPHERE.
Journal of Geophysical Research.
5901-5910.
1982
-
A HIGH TIME RESOLUTION STUDY OF INTER-PLANETARY PARAMETER CORRELATIONS WITH AE.
Geophysical Research Letters.
179-182.
1981
-
GLOBAL PROPERTIES OF THE MAGNETOSPHERE DURING A SUBSTORM GROWTH-PHASE - A CASE-STUDY.
Journal of Geophysical Research.
8941-8956.
1981
-
NEAR-EQUATORIAL, HIGH-RESOLUTION MEASUREMENTS OF ELECTRON-PRECIPITATION AT L CONGRUENT-TO 6.6.
Journal of Geophysical Research.
2295-2313.
1981
-
TIMING OF ENERGETIC PROTON ENHANCEMENTS RELATIVE TO MAGNETOSPHERIC SUBSTORM ACTIVITY AND ITS IMPLICATION FOR SUBSTORM THEORIES.
Journal of Geophysical Research.
1415-1421.
1981
-
COMPARISON BETWEEN THE 30-KEV TO 80-KEV ELECTRON CHANNELS ON ATS-6 AND 1976-059A DURING CONJUNCTION AND APPLICATION TO SPACECRAFT CHARGING PREDICTION.
Journal of Geophysical Research.
1155-1162.
1980
-
MULTISPACECRAFT OBSERVATIONS OF ENERGETIC ELECTRON FLUX PULSATIONS AT 6.6 RE.
Journal of Geophysical Research.
6709-6718.
1980
-
DO JOVIAN ELECTRONS INFLUENCE THE TERRESTRIAL OUTER RADIATION ZONE.
Geophysical Research Letters.
531-534.
1979
-
HIGH-ENERGY MAGNETOSPHERIC PROTONS AND THEIR DEPENDENCE ON GEOMAGNETIC AND INTER-PLANETARY CONDITIONS.
Journal of Geophysical Research.
7138-7154.
1979
-
STRONG ELECTRON PITCH ANGLE DIFFUSION OBSERVED AT GEOSTATIONARY ORBIT.
Geophysical Research Letters.
205-208.
1979
-
Substorm warnings: An ISEE-3 real time data system.
Eos, Transactions American Geophysical Union.
701-701.
1979
- FAST ELECTRONS NEAR MAGNETOPAUSE AND THEIR DEPENDENCE ON INTER-PLANETARY PARAMETERS. 365-365. 1978
- GREATER-THAN 30 KEV ELECTRON ANISOTROPIES AT 6.6 RE AS PRECURSORS TO SUBSTORMS. 357-358. 1978
-
HIGH-RESOLUTION ENERGETIC PARTICLE MEASUREMENTS AT 6.6-RE .1. ELECTRON MICROPULSATIONS.
Journal of Geophysical Research.
4851-4855.
1978
-
HIGH-RESOLUTION ENERGETIC PARTICLE MEASUREMENTS AT 6.6-RE .2. HIGH-ENERGY PROTON DRIFT ECHOES.
Journal of Geophysical Research.
4857-4862.
1978
-
HIGH-RESOLUTION ENERGETIC PARTICLE MEASUREMENTS AT 6.6-RE .3. LOW-ENERGY ELECTRON ANISOTROPIES AND SHORT-TERM SUBSTORM PREDICTIONS.
Journal of Geophysical Research.
4863-4868.
1978
-
MAGNETOPAUSE ENERGETIC ELECTRON LAYER .1. OBSERVATIONS ALONG DISTANT MAGNETOTAIL.
Journal of Geophysical Research.
4327-4338.
1978
- PROTON DRIFT ECHO OBSERVATIONS FROM SATELLITES IN SYNCHRONOUS ORBIT. 361-362. 1978
- REDISTRIBUTION OF HIGH-ENERGY (EP GREATER-THAN 0.3 MEV) PROTONS DURING MAGNETOSPHERIC SUBSTORMS. 1172-1172. 1978
- MAGNETOPAUSE ELECTRON LAYER ALONG DISTANT MAGNETOTAIL. 559-559. 1977
-
MAGNETOPAUSE ELECTRON LAYER ALONG DISTANT MAGNETOTAIL.
Geophysical Research Letters.
133-136.
1977
- OBSERVATIONS OF ELECTRON ACCELERATION AND CLOSED FIELD LINES IN MAGNETOSHEATH-LIKE REGIONS. 471-471. 1977
-
OBSERVATIONS OF ENERGETIC ELECTRONS (EPSILON GREATER-THAN-OR-ALMOST-EQUAL-TO 200 KEV) IN EARTHS MAGNETOTAIL - PLASMA SHEET AND FIREBALL OBSERVATIONS.
Journal of Geophysical Research.
1532-1546.
1977
-
RELATIONSHIP OF ENERGY-FLOW AT MAGNETOPAUSE TO GEOMAGNETIC ACTIVITY.
Geophysical Research Letters.
395-398.
1977
-
REVISED PIONEER-10 ABSOLUTE ELECTRON INTENSITIES IN INNER JOVIAN MAGNETOSPHERE.
Journal of Geophysical Research.
681-683.
1977
- THICKNESS AND INTENSITY CHARACTERISTICS OF TAILWARD MAGNETOPAUSE ENERGETIC ELECTRON LAYER. 471-471. 1977
-
ENERGETIC ELECTRON ANISOTROPIES IN MAGNETOTAIL - IDENTIFICATION OF OPEN AND CLOSED FIELD LINES.
Geophysical Research Letters.
557-560.
1976
-
ENERGETIC ELECTRONS IN JOVIAN MAGNETOSPHERE.
Journal of Geophysical Research.
617-632.
1976
- HIGH-ENERGY ELECTRONS (E GREATER-THAN-OR-EQUAL-TO 200 KEV) OBSERVED IN MAGNETOTAIL BOUNDARY-LAYER. 995-995. 1976
-
RADIAL DIFFUSION IN JUPITERS MAGNETOSPHERE.
Journal of Geophysical Research.
5215-5219.
1976
- CORRELATION OF ELECTRONS EE GREATER THAN 0.24 MEV WITH LOW-ENERGY ELECTRONS (50 EV EQUAL TO OR LESS THAN EE EQUAL TO OR LESS THAN 45 KEV) IN EARTHS MAGNETOTAIL. 1046-1046. 1975
-
PIONEER 11 OBSERVATIONS OF ENERGETIC PARTICLES IN JOVIAN MAGNETOSPHERE.
Science.
459-462.
1975
-
The magnetosphere of Jupiter as observed with Pioneer 10: 1. Instrument and principal findings.
Journal of Geophysical Research.
3559-3577.
1974
-
Energetic Electrons in the Magnetosphere of Jupiter.
Science.
309-311.
1974
-
International Geophysical Year: Space Weather Impacts in February 1958.
Space Weather.
775-776.
2018
editor of
Background
education and training
- Ph.D., University of Iowa 1974
- M.S., University of Iowa 1973
- B.A., University of Iowa 1969
awards and honors
International Activities
global connections related to teaching and scholarly work (in recent years)
- Austria Country
- Canada Country
- China Country
- Finland Country
- India Country
- Japan Country
- Norway Country
- Singapore Country
- South Africa Country
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