Part of the Physics Commons

Works by Harlan E. Spence in Physics

2014

Quantifying the relative contributions of substorm injections and chorus waves to the rapid outward extension of electron radiation belt, Q. Zong, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, Geoffrey Reeves, H. O. Funsten, J. B. Blake, D. N. Baker
Physics & Astronomy

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Investigation of EMIC wave scattering as the cause for the BARREL 17 January 2013 relativistic electron precipitation event: A quantitative comparison of simulation with observations, Zan Li, Robyn M. Millan, Mary K. Hudson, Leslie A. Woodger, David M. Smith, Yue Chen, R. Friedel, J. V. Rodriguez, Mark J. Engebretson, J. Goldstein, Joseph F. Fennell, Harlan E. Spence
Physics & Astronomy

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Excitation of nightside magnetosonic waves observedby Van Allen Probes, Qinghua Zhou, Fuliang Xiao, Chang Yang, Si Liu, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, Geoffrey Reeves, H. O. Funsten, J. B. Blake, D. N. Baker, J. R. Wygant
Physics & Astronomy

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Does the worsening galactic cosmic radiation environment observed by CRaTER preclude future manned deep space exploration?, Nathan A. Schwadron, J. B. Blake, Anthony Case, Colin J. Joyce, Justin Kasper, J. E. Mazur, N. Petro, M. Quinn, Jamie A. Porter, Charles W. Smith, Sonya S. Smith, Harlan E. Spence, Lawrence W. Townsend, R. Turner, Jody K. Wilson, Cary Zeitlin
Physics & Astronomy

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Interactions of energetic electrons with ULF waves triggered by interplanetary shock: Van Allen Probes observations in the magnetotail, Y. X. Hao, Q. G. Zong, Y. F. Wang, X. Z. Zhou, Hui Zhang, S. Y. Fu, Z. Y. Pu, Harlan E. Spence, J. B. Blake, J. Bonnell, J. R. Wygant, C A. Kletzing
Physics & Astronomy

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The trapping of equatorial magnetosonic waves in the Earth’s outer plasmasphere, Q. Ma, W Li, L. Chen, R. M. Thorne, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Geoffrey Reeves, M. G. Henderson, Harlan E. Spence
Physics & Astronomy

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Simulation of Van Allen probes plasmapause encounters, J. Goldstein, S. De Pascuale, C A. Kletzing, W. S. Kurth, K J. Genestreti, R. M. Skoug, Bradford Larsen, Lynn M. Kistler, Christoforos Mouikis, Harlan E. Spence
Physics & Astronomy

Generation of unusually low frequency plasmaspheric hiss, Lunjin Chen, R. M. Thorne, J. Bortnik, Wen Li, Richard B. Horne, Geoffrey Reeves, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, J. B. Blake, Joseph F. Fennell
Physics & Astronomy

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Deep dielectric charging of regolith within the Moon's permanently shadowed regions, Andrew P. Jordan, T. J. Stubbs, Jody K. Wilson, Nathan A. Schwadron, Harlan E. Spence, Colin J. Joyce
Physics & Astronomy

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Nitrate deposition to surface snow at Summit, Greenland, following the 9 November 2000 solar proton event, Katherine A. Duderstadt, Jack E. Dibb, Charles H. Jackman, Cora E. Randall, Stanley C. Solomon, Michael J. Mills, Nathan A. Schwadron, Harlan E. Spence
Earth Sciences

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Intense duskside lower band chorus waves observed by Van Allen Probes: Generation and potential acceleration effect on radiation belt electrons, Zhenpeng Su, Hui Zhu, Fuliang Xiao, Huinan Zheng, Yuming Wang, Zhaoguo He, Chao Shen, Chenglong Shen, C. B. Wang, Rui Liu, Min Zhang, Shui Wang, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, Geoffrey Reeves, H. O. Funsten, J. B. Blake, D. N. Baker, J. R. Wygant
Physics & Astronomy

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Radiation belt electron acceleration by chorus waves during the 17 March 2013 storm, W. Li, R. M. Thorne, Q. Ma, B. Ni, J. Bortnik, D. N. Baker, Harlan E. Spence, Geoffrey Reeves, S. G. Kanekal, J. C. Green, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, J. B. Blake, Joseph F. Fennell, S. Claudepierre
Physics & Astronomy

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Radiation environment at the Moon: Comparisons of transport code modeling and measurements from the CRaTER instrument, Jamie A. Porter, Lawrence W. Townsend, Harlan E. Spence, Michael J. Golightly, Nathan A. Schwadron, Justin Kasper, Anthony Case, J. B. Blake, Cary Zeitlin
Physics & Astronomy

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Synthesis of 3-D coronal-solar wind energetic particle acceleration modules, Nathan A. Schwadron, Matthew J. Gorby, Tibor Torak, Cooper Downs, J. A. Linker, Roberto Lionello, Z. Mikic, P. Riley, Joe Giacalone, Benjamin D.G. Chandran, Kai K. Germaschewski, Philip A. Isenberg, Martin A. Lee, Noe E. Lugaz, Sonya S. Smith, Harlan E. Spence, M. Desai, J. C. Kasper, K. Kozarev, K. E. Korreck, M. L. Stevens, J. F. Cooper, Peter MacNeice
Physics & Astronomy

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Chorus acceleration of radiation belt relativistic electrons during March 2013 geomagnetic storm, Fuliang Xiao, Chang Yang, Zhaoguo He, Zhenpeng Su, Qinghua Zhou, Yihua He, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, Geoffrey Reeves, H. O. Funsten, J. B. Blake, D. N. Baker, J. R. Wygant
Physics & Astronomy

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Simulations of inner magnetosphere dynamics with an expanded RAM-SCB model and comparisons with Van Allen Probes observations, Vania K. Jordanova, Y. Yu, J. T. Niehof, R. M. Skoug, Geoffrey Reeves, C A. Kletzing, Joseph F. Fennell, Harlan E. Spence
Physics & Astronomy

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Quantifying the radiation belt seed population in the 17 March 2013 electron acceleration event, A. J. Boyd, Harlan E. Spence, S. Claudepierre, Joseph F. Fennell, J. B. Blake, D. N. Baker, Geoffrey Reeves, D. L. Turner
Physics & Astronomy

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Gradual diffusion and punctuated phase space density enhancements of highly relativistic electrons: Van Allen Probes observations, D. N. Baker, A. Jaynes, X. Li, M. G. Henderson, S. G. Kanekal, Geoffrey Reeves, Harlan E. Spence, S. Claudepierre, Joseph F. Fennell, M. K. Hudson, R. M. Thorne, J. C. Foster, P. J. Erickson, D. M. Malaspina, J. R. Wygant, A. J. Boyd, C A. Kletzing, A. Drozdov, Y. Y. Shprits
Physics & Astronomy

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Event-specific chorus wave and electron seed population models in DREAM3D using the Van Allen Probes, Weichao Tu, G. S. Cunningham, Y. Chen, S. K. Morley, Geoffrey Reeves, J. B. Blake, D. N. Baker, Harlan E. Spence
Physics & Astronomy

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REPAD: An empirical model of pitch angle distributions for energetic electrons in the Earth's outer radiation belt, Yue Chen, R. Friedel, M. G. Henderson, S. Claudepierre, S. K. Morley, Harlan E. Spence
Physics & Astronomy

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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, D. L. Turner, V. Angelopoulos, W. Li, J. Bortnik, B. Ni, Q. Ma, R. M. Thorne, S. K. Morley, M. G. Henderson, Geoffrey Reeves, M. Usanova, I. R. Mann, S. Claudepierre, J. B. Blake, D. N. Baker, Chia-Lin L. Huang, Harlan E. Spence, W. S. Kurth, C A. Kletzing, J. V. Rodriguez
Physics & Astronomy

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On the cause and extent of outer radiation belt losses during the 30 September 2012 dropout event, D. L. Turner, V. Angelopoulos, S. K. Morley, M. G. Henderson, Geoffrey Reeves, W. Li, D. N. Baker, Chia-Lin L. Huang, A. J. Boyd, Harlan E. Spence, S. Claudepierre, J. B. Blake, J. V. Rodriguez
Physics & Astronomy

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Resonant scattering of energetic electrons by unusual low-frequency hiss, Binbin Ni, Wen Li, R. M. Thorne, J. Bortnik, Qianli Ma, Lunjin Chen, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Geoffrey Reeves, Harlan E. Spence, J. B. Blake, Joseph F. Fennell, S. Claudepierre
Physics & Astronomy

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Application and testing of the L neural network with the self-consistent magnetic field model of RAM-SCB, Yiqun Yu, Josef Koller, Vania K. Jordanova, Sorin G. Zaharia, R. Friedel, S. K. Morley, Yue Chen, D. N. Baker, Geoffrey Reeves, Harlan E. Spence
Physics & Astronomy

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Van Allen Probes observations of direct wave-particle interactions, Joseph F. Fennell, J. Roeder, W. S. Kurth, M. G. Henderson, B. A. Larsen, G. B. Hospodarsky, J. R. Wygant, S. Claudepierre, J. B. Blake, Harlan E. Spence, J. H. Clemmons, H. O. Funsten, C A. Kletzing, Geoffrey Reeves
Physics & Astronomy

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Effect of EMIC waves on relativistic and ultrarelativistic electron populations: Ground-based and Van Allen Probes observations, M. Usanova, A. Drozdov, K. Orlova, I. R. Mann, Y. Y. Shprits, M. T. Robertson, D. L. Turner, D. K. Milling, A. Kale, D. N. Baker, S. A. Thaller, Geoffrey Reeves, Harlan E. Spence, C A. Kletzing, J. R. Wygant
Physics & Astronomy

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Radiation modeling in the Earth and Mars atmospheres using LRO/CRaTER with the EMMREM Module, Colin J. Joyce, Nathan A. Schwadron, Jody K. Wilson, Harlan E. Spence, Justin Kasper, Michael J. Golightly, J. B. Blake, Lawrence W. Townsend, Anthony Case, E. Semones, Sonya S. Smith, Cary Zeitlin
Physics & Astronomy

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Quantifying hiss-driven energetic electron precipitation: A detailed conjunction event analysis, W. Li, B. Ni, R. M. Thorne, J. Bortnik, Y. Nishimura, J. C. Green, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, Geoffrey Reeves, J. B. Blake, Joseph F. Fennell, S. Claudepierre, X. Gu
Physics & Astronomy

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Nonstorm time dynamics of electron radiation belts observed by the Van Allen Probes, Zhenpeng Su, Fuliang Xiao, Huinan Zheng, Zhaoguo He, Hui Zhu, Min Zhang, Chao Shen, Yuming Wang, Shui Wang, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, Geoffrey Reeves, H. O. Funsten, J. B. Blake, D. N. Baker
Physics & Astronomy

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Prompt energization of relativistic and highly relativistic electrons during a substorm interval: Van Allen Probes observations, J. C. Foster, P. J. Erickson, D. N. Baker, S. Claudepierre, C A. Kletzing, W. S. Kurth, Geoffrey Reeves, S. A. Thaller, Harlan E. Spence, Y. Y. Shprits, J. R. Wygant
Physics & Astronomy

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Excitation of EMIC waves detected by the Van Allen Probes on 28 April 2013, J. C. Zhang, A A. Saiken, Lynn M. Kistler, Charles W. Smith, Harlan E. Spence, Christoforos Mouikis, Roy B. Torbert, Bradford Larsen, Geoffrey Reeves, R. M. Skoug, H. O. Funsten, W. S. Kurth, C A. Kletzing, R. C. Allen, V K. Jordanova
Physics & Astronomy

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An empirically observed pitch-angle diffusion eigenmode in the Earth's electron belt near L* = 5.0, T. P. O'Brien, S. Claudepierre, J. B. Blake, Joseph F. Fennell, J. H. Clemmons, J. Roeder, Harlan E. Spence, Geoffrey Reeves, D. N. Baker
Physics & Astronomy

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2013

James van Allen and his namesake NASA mission, D. N. Baker, V. C. Hoxie, A. Jaynes, A. Kale, S. G. Kanekal, X. Li, Geoffrey Reeves, Harlan E. Spence
Physics & Astronomy

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Helium, Oxygen, Proton, and Electron (HOPE) Mass Spectrometer for the Radiation Belt Storm Probes Mission, H. O. Funsten, R. M. Skoug, A. A. Guthrie, E. A. MacDonald, J. R. Baldonado, R. W. Harper, K. C. Henderson, K. H. Kihara, J. E. Lake, B. A. Larsen, A. D. Puckett, V. J. Vigil, Harlan E. Spence
Physics & Astronomy

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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, Harlan E. Spence, G. D. Reeves, D. N. Baker, J. B. Blake, M. Bolton, S. Bourdarie, A. A. Chan, S. G. Claudepierre, J. H. Clemmons, J. P. Cravens, S. R. Elkington, J. F. Fennell
Physics & Astronomy

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Relative Contributions of Galactic Cosmic Rays and Lunar Proton “Albedo” to Dose and Dose , Harlan E. Spence, M. J. Golightly, Colin J. Joyce, M. D. Looper, Nathan A. Schwadron, Sonya S. Smith, L. W. Townsend, Jody K. Wilson, C. Zeitlin
Physics & Astronomy

Discovery of the Action of a Geophysical Synchrotron in the Earth's Van Allen Radiation Belts, I. R. Mann, E. A. Lee, S. Claudepierre, Joseph F. Fennell, A. Degeling, I. J. Rae, D. N. Baker, Geoffrey Reeves, Harlan E. Spence, L. G. Ozeke, R. Rankin, D. K. Milling, A. Kale, R. Friedel, F. Honary
Physics & Astronomy

Rapid local acceleration of relativistic radiation-belt electrons by magnetospheric chorus, R. M. Thorne, W Li, B Ni, Q. Ma, J. Bortnik, L. Chen, D. N. Baker, Harlan E. Spence, Geoffrey Reeves, M. G. Henderson, C A. Kletzing, W. S. Kurth, G. B. Hospodarsky, J. B. Blake, Joseph F. Fennell, S. Claudepierre, S. G. Kanekal
Physics & Astronomy

Dose spectra from energetic particles and neutrons, Nathan A. Schwadron, Chris Bancroft, Peter F. Bloser, Jason S. Legere, James M. Ryan, Sonya S. Smith, Harlan E. Spence, Joe Mazur, Cary Zeitlin
Physics & Astronomy

First results from CSSWE CubeSat: Characteristics of relativistic electrons in the near‐Earth environment during the October 2012 magnetic storms, X. Li, Q. Schiller, L. Blum, S. Califf, H. Zhao, W. Tu, D. L. Turner, D. Gerhardt, S. Palo, S. Kanekal, D. N. Baker, J. F. Fennell, J. B. Blake, M. Looper, G. D. Reeves, Harlan E. Spence
Physics & Astronomy

Multiple bidirectional EMIC waves observed by Cluster at middle magnetic latitudes in the dayside magnetosphere, R. C. Allen, J. C. Zhang, Lynn M. Kistler, Harlan E. Spence, R. L. Lin, M. W. Dunlop, M. Andre
Physics & Astronomy

Van Allen Probes observation of localized drift resonance between poloidal mode ultra‐low frequency waves and 60 keV electrons, S. G. Claudepierre, I. R. Mann, K. Takahashi, J. F. Fennell, M. K. Hudson, J. B. Blake, J. L. Roeder, J. H. Clemmons, Harlan E. Spence, G. D. Reeves, D. N. Baker, H. O. Funsten, R. H.W. Freidal, M. G. Henderson, C. A. Kletzing, W. S. Kurth, R. J. MacDowall, Charles W. Smith, J. R. Wygant
Physics & Astronomy

An unusual enhancement of low‐frequency plasmaspheric hiss in the outer plasmasphere associated with substorm‐injected electrons, W. Li, R. M. Thorne, J. Bortnik, G. D. Reeves, C. A. Kletzing, W. S. Kurth, G. B. Hospodarsky, Harlan E. Spence, J. B. Blake, J. F. Fennell, S. G. Claudepierre, J. R. Wygant, S. A. Thaller
Physics & Astronomy

Excitation of poloidal standing Alfvén waves through drift resonance wave‐particle interaction, L. Dai, K. Takahashi, J. R. Wygant, L. Chen, J. Bonnell, C. A. Cattell, S. Thaller, C. Kletzing, Charles W. Smith, R. J. MacDowall, D. N. Baker, J. B. Blake, J. Fennell, S. Claudepierre, H. O. Funsten, G. D. Reeves, Harlan E. Spence
Physics & Astronomy

Electron acceleration in the heart of the Van Allen radiation belts, G. D. Reeves, Harlan E. Spence, M. G. Henderson, S. K. Morley, R. H. W. Friedel, H. O. Funsten, D. N. Baker, S. G. Kanekal, J. B. Blake, J. F. Fennell, S. G. Claudepierre, R. M. Thorne, D. L. Turner, C A. Kletzing, W. S. Kurth, B. A. Larsen, J. T. Niehof
Physics & Astronomy

Revision of empirical electric field modeling in the 1 inner magnetosphere using Cluster data, Hiroshi Matsui, Roy B. Torbert, Harlan E. Spence, Y. V. Khotyaintsev, P. A. Lindqvist
Physics & Astronomy

Validation of PREDICCS using LRO/CRaTER observations during three major solar events in 2012, Colin J. Joyce, Nathan A. Schwadron, Jody K. Wilson, Harlan E. Spence, J. C. Kasper, M. Golightly, J. B. Blake, J. Mazur, L. W. Townsend, A. W. Case, E. Semones, Sonya S. Smith, C. J. Zeitlin
Physics & Astronomy

The deep space galactic cosmic ray lineal energy spectrum at solar minimum, A. W. Case, J. C. Kasper, Harlan E. Spence, C. J. Zeitlin, M. D. Looper, M. J. Golightly, Nathan A. Schwadron, L. W. Townsend, J. E. Mazur, J. B. Blake, Y. Iwata
Physics & Astronomy

The formation of molecular hydrogen from water ice in the lunar regolith by energetic charged particles, Andrew P. Jordan, T. J. Stubbs, Colin J. Joyce, Nathan A. Schwadron, Harlan E. Spence, Jody K. Wilson
Physics & Astronomy

Evolution and slow decay of an unusual narrow ring of relativistic electrons near L~ 3.2 following the September 2012 magnetic storm, R. M. Thorne, W. Li, B. Ni, Q. Ma, J. Bortnik, D. N. Baker, Harlan E. Spence, G. D. Reeves, M. G. Henderson, C. A. Kletzing, W. S. Kurth, G. B. Hospodarsky, D. Turner, V. Angelopoulos
Physics & Astronomy

Measurements of galactic cosmic ray shielding with the CRaTER instrument, C. Zeitlin, A. W. Case, Harlan E. Spence, Nathan A. Schwadron, M. Golightly, Jody K. Wilson, J. C. Kasper, J. B. Blake, M. D. Looper, J. E. Mazur, L. W. Townsend, Y. Iwata
Physics & Astronomy

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New Insight into the Inner Magnetosphere Plasma Regimes with the van Allen Probes (RBSP), Joerg-Micha Jahn, Richard E. Denton, Herbert O. Funsten, Geoff Reeves, Harlan E. Spence
Physics & Astronomy

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The radiation environment near the lunar surface: CRaTER observations and Geant4 simulations, M. D. Looper, J. E. Mazur, J. B. Blake, Harlan E. Spence, Nathan A. Schwadron, M. J. Golightly, A. W. Case, J. C. Kasper, L. W. Townsend
Physics & Astronomy

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Early Science Results From the NASA Van Allen Probes Mission RBSP-ECT Instrument Suite, Harlan E. Spence, Geoff Reeves, Rbspect Team
Physics & Astronomy

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A Long-Lived Relativistic Electron Storage Ring Embedded in Earth’s Outer Van Allen Belt, D. N. Baker, S. G. Kanekal, V. C. Hoxie, M. G. Henderson, X. Li, Harlan E. Spence, S. R. Elkington, R. H. W. Friedel, J. Goldstein, M. K. Hudson, G. D. Reeves, R. M. Thorne, C. A. Kletzing, S. G. Claudepierre
Physics & Astronomy

Cosmic Ray Albedo Proton Yield Correlated with Lunar Elemental Abundances, Jody K. Wilson, Harlan E. Spence, Nathan A. Schwadron, M. J. Golightly, A. W. Case, J. B. Blake, J. Kasper, M. D. Looper, J. E. Mazur, L. W. Townsend, C. Zeitlin, T. J. Stubbs
Physics & Astronomy

Lunar Energetic Proton Albedo: Measured and Modeled Energy Spectra and Other Properties, Harlan E. Spence, J. B. Blake, A. W. Case, M. J. Golightly, Colin J. Joyce, J. C. Kasper, M. D. Looper, J. E. Mazur, Nathan A. Schwadron, Sonya S. Smith, L. W. Townsend, C. J. Zeitlin
Physics & Astronomy

Dielectric Breakdown in the Lunar Regolith, Andrew P. Jordan, T. J. Stubbs, Jody K. Wilson, Nathan A. Schwadron, Harlan E. Spence
Physics & Astronomy

The CRaTER Special Issue of Space Weather: Building the observational foundation to deduce biological effects of space radiation, Nathan A. Schwadron, Sonya S. Smith, Harlan E. Spence
Physics & Astronomy

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Contributions of primary particles to observed LET for the CRaTER instrument on LRO, Jamie A. Porter, Lawrence W. Townsend, Harlan E. Spence, Michael J. Golightly, Nathan A. Schwadron, Justin Kasper, Anthony Case, John B. Blake, Joe Mazur, Cary Zeitlin
Physics & Astronomy

2012

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, D. N. Baker, S. G. Kanekal, V. C. Hoxie, S. Batiste, M. Bolton, X. Li, S. R. Elkington, S. Monk, R. Reukauf, S. Steg, J. Westfall, C. Belting, Harlan E. Spence
Physics & Astronomy

The first cosmic ray albedo proton map of the Moon, Jody K. Wilson, Harlan E. Spence, Justin Kasper, Michael Golightly, J. B. Blake, J. E. Mazur, L. W. Townsend, A. W. Case, M. D. Looper, C. Zeitlin, Nathan A. Schwadron
Physics & Astronomy

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Lunar radiation environment and space weathering from the Cosmic Ray Telescope for the Effects of Radiation (CRaTER), Nathan A. Schwadron, T. Baker, B. Blake, A. W. Case, J. F. Cooper, M. Golightly, Andrew P. Jordan, Colin J. Joyce, J. Kasper, K. Kozarev, J. Mislinski, J. Mazur, Harlan E. Spence
Physics & Astronomy

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Focusing on size and energy dependence of electron microbursts from the Van Allen radiation belts, Harlan E. Spence, J. B. Blake, A. B. Crew, S. Driscoll, D. M. Klumpar, B. A. Larsen, Jason S. Legere, S. Longworth, E. Mosleh, T. P. O'Brien, Sonya S. Smith, L. Springer, W. Widholm
Physics & Astronomy

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From CMEs to Earth/Lunar Radiation Dosages: A First in Heliospheric End-to-End Coupling, Matthew J. Gorby, Nathan A. Schwadron, J. A. Linker, Harlan E. Spence, L. W. Townsend, F. A. Cucinotta, Jody K. Wilson
Physics & Astronomy

Interplanetary Conditions During the Apollo Missions: Implications for the State of the Lunar Environment, T. J. Stubbs, D. A. Glenar, Andrew P. Jordan, Y. Wang, R. R. Vondrak, M. R. Collier, W. M. Farrell, M. I. Zimmerman, Nathan A. Schwadron, Harlan E. Spence
Physics & Astronomy

PREDICCs: A Radiation Prediction Tool for Lunar, Planetary, and Deep Space Exploration, Harlan E. Spence, Nathan A. Schwadron, Matthew J. Gorby, Colin J. Joyce, M. Quinn, M. LeVeille, Sonya S. Smith, Jody K. Wilson, L. Townsend, F. Cucinotta
Physics & Astronomy

Cosmic Ray Albedo Proton Yield Correlated with Lunar Elemental Abundances, Jody K. Wilson, Harlan E. Spence, A. W. Case, J. B. Blake, M. J. Golightly, J. Kasper, M. D. Looper, J. E. Mazur, Nathan A. Schwadron, L. W. Townsend, C. Zeitlin
Physics & Astronomy

The Radiation Belt Storm Probes (RBSP) Energetic Particle, Composition, and Thermal plasma (ECT) Suite: Upcoming Opportunties for Testing Radiation Belt Acceleration Mechanisms, Harlan E. Spence, Geoffrey Reeves
Physics & Astronomy

On the Controversy of Extreme Solar Particle Event Signatures in Arctic Ice Cores: Sun to Ice?, Harlan E. Spence
Physics & Astronomy

An Unidentified Lunar Cosmic Ray Signal that Depends on Altitude and Solar Zenith Angle, A. W. Case, J. C. Kasper, Harlan E. Spence, M. J. Golightly, Nathan A. Schwadron, J. B. Blake, M. Looper, J. E. Mazur, L. W. Townsend, C. J. Zeitlin
Physics & Astronomy

Energy Spectral Properties and Implications of the Lunar Energetic Proton Albedo, Harlan E. Spence, J. B. Blake, A. W. Case, M. J. Golightly, J. C. Kasper, M. D. Looper, J. E. Mazur, Nathan A. Schwadron, L. W. Townsend, C. J. Zeitlin
Physics & Astronomy

On the Interaction Between Highly Energetic Charged Particles and the Lunar Regolith, Andrew P. Jordan, T. J. Stubbs, C. Zeitlin, Harlan E. Spence, Nathan A. Schwadron, M. I. Zimmerman, W. M. Farrell
Physics & Astronomy

Observed and simulated LET spectra comparison for the CRaTER instrument on LRO, J. A. Anderson, L. W. Townsend, Harlan E. Spence, M. Golightly, Nathan A. Schwadron, J. C. Kasper, A. W. Case, J. B. Blake, J. Mazur
Physics & Astronomy

2011

The First Cosmic Ray Albedo Proton Map of the Moon, Jody K. Wilson, Harlan E. Spence, J. C. Kasper, M. J. Golightly, J. B. Blake, J. E. Mazur, L. Townsend, A. W. Case, M. D. Looper, C. J. Zeitlin, Nathan A. Schwadron
Physics & Astronomy

Galactic cosmic ray linear energy transfer spectra at the Moon during solar minimum, Andrew P. Jordan, Nathan A. Schwadron, A. W. Case, Harlan E. Spence, J. C. Kasper, M. J. Golightly, J. B. Blake, J. E. Mazur, L. Townsend
Physics & Astronomy

PREDICCS: Predictions of Radiation from REleASE, EMMREM, and Data Incorporating CRaTER, COSTEP (EPHIN), and other SEP measurements, J. F. Mislinski, Nathan A. Schwadron, L. Townsend, Harlan E. Spence, O. M. Rother, A. Posner, R. Squier, Jody K. Wilson, Andrew P. Jordan, R. Anderson, T. Baker, K. A. Kozarev
Physics & Astronomy

Revisiting two-step Forbush decreases, Andrew P. Jordan, Harlan E. Spence, J. B. Blake, D. N. A. Shaul
Physics & Astronomy

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Does the space environment affect the ecosphere?, Nathan A. Schwadron, Harlan E. Spence, Rosemarie Came
Physics & Astronomy

Coronal Electron Temperature from the Solar Wind Scaling Law throughout the Space Age, Nathan A. Schwadron, Charles W. Smith, Harlan E. Spence, J. C. Kasper, K. Korreck, M. L. Stevens, B. A. Maruca, K. K. Kiefer, S. T. Lepri, D. McComas
Physics & Astronomy

New measurements of total ionizing dose in the lunar environment, J. E. Mazur, W. R. Crain, M. D. Looper, D. J. Mabry, J. B. Blake, A. W. Case, M. J. Golightly, J. C. Kasper, Harlan E. Spence
Physics & Astronomy

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Remote observations of ion temperatures in the quiet time magnetosphere, A. M. Keesee, N. Buzulukova, J. Goldstein, D. J. McComas, E. E. Scime, Harlan E. Spence, M. C. Fok, K. Tallaksen
Physics & Astronomy

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2010

Examining periodic solar-wind density structures observed in the SECCHI heliospheric imagers, N. Viall, A. Vourlidas, Harlan E. Spence, R. Howard
Physics & Astronomy

GCR access to the Moon as measured by the CRaTER instrument on LRO, A. W. Case, Harlan E. Spence, M. J. Golightly, J. C. Kasper, J. B. Blake, J. E. Mazur, L. W. Townsend, C. J. Zeitlin
Physics & Astronomy

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Modeling radiation belt radial diffusion in ULF wave fields: 1. Quantifying ULF wave power at geosynchronous orbit in observations and in global MHD model, Chia-Lin L. Huang, Harlan E. Spence, Howard J. Singer, W. Jeffrey Hughes
Physics & Astronomy

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Modeling radiation belt radial diffusion in ULF wave fields: 2. Estimating rates of radial diffusion using combined MHD and particle codes, Chia-Lin L. Huang, Harlan E. Spence, Mary K. Hudson, Scot R. Elkington
Physics & Astronomy

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Galactic cosmic ray radiation hazard in the unusual extended solar minimum between solar cycles 23 and 24, Nathan A. Schwadron, A. J. Boyd, K. Kozarev, M. Golightly, Harlan E. Spence, L. W. Townsend, M. Owens
Physics & Astronomy

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Parameterizations of the linear energy transfer spectrum for the CRaTER instrument during the LRO mission, L. W. Townsend, Y. M. Charara, N. Delauder, M. PourArsalan, J. A. Anderson, C. M. Fisher, Harlan E. Spence, Nathan A. Schwadron, M. J. Golightly, F. A. Cucinotta
Physics & Astronomy

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Earth‐Moon‐Mars Radiation Environment Module framework, Nathan A. Schwadron, L. Townsend, K. Kozarev, M. A. Dayeh, F. Cucinotta, M. Desai, M. Golightly, D. Hassler, R. Hatcher, M. Y. Kim, A. Posner, M. PourArsalan, Harlan E. Spence, R. K. Squier
Physics & Astronomy

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CRaTER: The cosmic ray telescope for the effects of radiation experiment on the lunar reconnaissance orbiter mission, Harlan E. Spence, A. W. Case, M. J. Golightly, T. Heine, B. A. Larsen, J. B. Blake, P. Caranza, W. R. Crain, J. George, M. Lalic, A. Lin, M. D. Looper
Physics & Astronomy

2009

Are periodic solar wind number density structures formed in the solar corona?, N. M. Viall, Harlan E. Spence, J. Kasper
Physics & Astronomy

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Interhemispheric observations of impulsive nitrate enhancements associated with the four large ground-level solar cosmic ray events (1940–1950), L. Kepko, Harlan E. Spence, D. F. Smart, M. A. Shea
Physics & Astronomy

Ion observations from geosynchronous orbit as a proxy for ion cyclotron wave growth during storm times, L. W. Blum, E. A. MacDonald, S. P. Gary, M. F. Thomsen, Harlan E. Spence
Physics & Astronomy

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Multipoint, high time resolution galactic cosmic ray observations associated with two interplanetary coronal mass ejections, Andrew P. Jordan, Harlan E. Spence, J. B. Blake, T. Mulligan, D. N. A. Shaul, M. Galametz
Physics & Astronomy

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A novel metric for coronal MHD models, D. J. Schmit, S. Gibson, G. De Toma, M. Wiltberger, W. J. Hughes, Harlan E. Spence, P. Riley, J. A. Linker, Z. Mikic
Physics & Astronomy

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Assessing access of galactic cosmic rays at Moon's orbit, Chia-Lin L. Huang, Harlan E. Spence, B. T. Kress
Physics & Astronomy

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Relative occurrence rates and connection of discrete frequency oscillations in the solar wind density and dayside magnetosphere, N. M. Viall, L. Kepko, Harlan E. Spence
Physics & Astronomy

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2008

Posteruptive phenomena in coronal mass ejections and substorms: Indicators of a universal process?, K. K. Reeves, T. B. Guild, W. J. Hughes, K. E. Korreck, J. Lin, J. Raymond, S. Savage, Nathan A. Schwadron, Harlan E. Spence, D. F. Webb, M. Wiltberger
Physics & Astronomy

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Ambient solar wind's effect on ICME transit times, A. W. Case, Harlan E. Spence, M. J. Owens, P. Riley, D. Odstrcil
Physics & Astronomy

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Metrics for solar wind prediction models: Comparison of empirical, hybrid, and physics‐based schemes with 8 years of L1 observations, M. J. Owens, Harlan E. Spence, S. McGregor, W. J. Hughes, J. M. Quinn, C. N. Arge, P. Riley, J. Linker, D. Odstrcil
Physics & Astronomy

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Inherent length-scales of periodic solar wind number density structures, N. M. Viall, L. Kepko, Harlan E. Spence
Physics & Astronomy

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An event study to provide validation of TING and CMIT geomagnetic middle-latitude electron densities at the F2 peak, A. G. Burns, W. Wang, M. Wiltberger, S. C. Soloman, Harlan E. Spence, T. L. Killeen, R. E. Lopez, J. E. Landivar
Physics & Astronomy

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Geotail and LFM comparisons of plasma sheet climatology: 1. Average values, T. B. Guild, Harlan E. Spence, E. L. Kepko, V. Merkin, J. G. Lyon, M. Wiltberger, C. C. Goodrich
Physics & Astronomy

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Geotail and LFM comparisons of plasma sheet climatology: 2. Flow variability, T. B. Guild, Harlan E. Spence, E. L. Kepko, V. Merkin, J. G. Lyon, M. Wiltberger, C. C. Goodrich
Physics & Astronomy

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A quantitative assessment of empirical magnetic field models at geosynchronous orbit during magnetic storms, Chia-Lin L. Huang, Harlan E. Spence, H. J. Singer, N. A. Tsyganenko
Physics & Astronomy

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Space Technology 5 multi-point measurements of near-Earth magnetic fields: Initial results, J. A. Slavin, G. Le, R. J. Strangeway, Y. Wang, S. A. Boardsen, M. B. Moldwin, Harlan E. Spence
Physics & Astronomy

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2007

Separation of spatial and temporal structure of auroral particle precipitation, A. Boudouridis, Harlan E. Spence
Physics & Astronomy

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Predicting magnetospheric dynamics with a coupled Sun‐to‐Earth model: Challenges and first results, V. G. Merkin, M. J. Owens, Harlan E. Spence, W. J. Hughes, J. M. Quinn
Physics & Astronomy

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Lunar Reconnaissance Orbiter Overview: The Instrument Suite and Mission, G. Chin, S. Brylow, M. Foote, J. Garvin, J. Kasper, J. Keller, M. Litvak, I. Mitrofanov, D. Paige, K. Raney, M. Robinson, A. Sanin, D. Smith, Harlan E. Spence, P Spudis, S. A. Stern, M. Zuber
Physics & Astronomy

Role of coronal mass ejections in the heliospheric Hale cycle, M. J. Owens, Nathan A. Schwadron, N. U. Crooker, W. J. Hughes, Harlan E. Spence
Physics & Astronomy

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Predicting magnetopause crossings at geosynchronous orbit during the Halloween storms, R. E. Lopez, S. Hernandez, M. Wiltberger, Chia-Lin L. Huang, E. L. Kepko, Harlan E. Spence, C. C. Goodrich, J. G. Lyon
Physics & Astronomy

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2006

Solar proton events for 450 years: The Carrington event in perspective, M. A. Shea, D. F. Smart, K. G. McCracken, G. A. M. Dreschhoff, Harlan E. Spence
Physics & Astronomy

Two groups of extremely large> 30MeV solar proton fluence events, D. F. Smart, M. A. Shea, Harlan E. Spence, L. Kepko
Physics & Astronomy

Storm‐time configuration of the inner magnetosphere: Lyon‐Fedder‐Mobarry MHD code, Tsyganenko model, and GOES observations, Chia-Lin L. Huang, Harlan E. Spence, J. G. Lyon, F. R. Toffoletto, H. J. Singer, S. Sazykin
Physics & Astronomy

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Magnetospheric influence on the Moon's exosphere, Jody K. Wilson, M. Mendillo, Harlan E. Spence
Physics & Astronomy

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2005

An event-based approach to validating solar wind speed predictions: High-speed enhancements in the Wang-Sheeley-Arge model, M. J. Owens, C. N. Arge, Harlan E. Spence, A. Pembroke
Physics & Astronomy

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Reverse convection and cusp proton aurora: Cluster, polar and image observation, Q. Zong, T. A. Fritz, Harlan E. Spence, H. U. Frey, S. B. Mende, A. Korth, P. W. Daly
Physics & Astronomy

Plasmoid in the high latitude boundary/cusp region observed by Cluster, Q. G. Zong, T. A. Fritz, Harlan E. Spence, H. Zhang, Z. Y. Huang, Z. Y. Pu, K. Glassmeier, A. Korth, P. W. Daly, A. Balogh, H. Reme
Physics & Astronomy

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2004

A statistical study of the global structure of the ring current, A. M. Jorgensen, Harlan E. Spence, W. J. Hughes, H. J. Singer
Physics & Astronomy

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Plasma sheet climatology: Geotail observations and LFM model comparisons, T. Guild, Harlan E. Spence, L. Kepko, M. Wiltberger, C. Goodrich, J. Lyon, W. J. Hughes
Physics & Astronomy

Sun-to-magnetosphere modeling: CISM forecast model development using linked empirical methods, D. N. Baker, R. S. Weigel, E. J. Rigler, R. L. McPherron, D. Vassiliadis, C. N. Arge, G. L. Siscoe, Harlan E. Spence
Physics & Astronomy

Center for integrated space weather modeling metrics plan and initial model validation results, Harlan E. Spence, D. Baker, A. Burns, T. Guild, Chia-Lin L. Huang, G. Siscoe, R. Weigel
Physics & Astronomy

Roles of empirical modeling within CISM, G. Siscoe, D. Baker, R. Weigel, J. Hughes, Harlan E. Spence
Physics & Astronomy

Energetic particle sounding of the magnetopause: A contribution by Cluster/RAPID, Q. Zong, T. A. Fritz, Harlan E. Spence, K. Oksavik, Z. Y. Pu, A. Korth, P. W. Daly
Physics & Astronomy

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Relative timing of substorm onset phenomena, L. Kepko, M. G. Kivelson, R. L. McPherron, Harlan E. Spence
Physics & Astronomy

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Heliospheric plasma sheets, N. U. Crooker, Chia-Lin L. Huang, S. M. Lamassa, D. E. Larson, S. W. Kahler, Harlan E. Spence
Physics & Astronomy

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On the solar wind control of cusp aurora during northward IMF, M. G. Bobra, S. M. Petrinec, S. A. Fuselier, E. S. Claflin, Harlan E. Spence
Physics & Astronomy

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2003

Bursty energetic electrons confined in flux ropes in the cusp region, Q. G. Zong, T. A. Fritz, Harlan E. Spence, M. Dunlop, Z. Y. Pu, A. Korth, P. W. Daly, A. Balogh, H. Reme
Physics & Astronomy

Reply to comment on “MeV magnetosheath ions energized at the bow shock” by J. Chen, TA Fritz, and RB Sheldon, S. Chang, J. D. Scudder, K. Kudela, Harlan E. Spence, J. F. Fennell, R. P. Lepping, R. P. Lin, C. T. Russell
Physics & Astronomy

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Suprathermal electron isotropy in high-beta solar wind and its role in heat flux dropouts, N. U. Crooker, D. E. Larson, S. W. Kahler, S. M. Lamassa, Harlan E. Spence
Physics & Astronomy

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Observations of discrete, global magnetospheric oscillations directly driven by solar wind density variations, L. Kepko, Harlan E. Spence
Physics & Astronomy

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Formation of the LLBL in the Context of a Unifying Magnetopause Reconnection Mechanism, Athanasios Boudouridis, Harlan E. Spence, T. G. Onsager
Physics & Astronomy

2002

A new look at the pulsed reconnection model of the dayside magnetopause, Athanasios Boudouridis, Harlan E. Spence, T. G. Onsager
Physics & Astronomy

ULF waves in the solar wind as direct drivers of magnetospheric pulsations, L. Kepko, Harlan E. Spence, H. J. Singer
Physics & Astronomy

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2001

MeV magnetosheath ions energized at the bow shock, S. Chang, J. D. Scudder, K. Kudela, Harlan E. Spence, J. F. Fennell, R. P. Lepping, R. P. Lin, C. T. Russell
Physics & Astronomy

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Charge exchange contribution to the decay of the ring current, measured by energetic neutral atoms (ENAs), A. M. Jorgensen, M. G. Henderson, E. C. Roelof, G. D. Reeves, Harlan E. Spence
Physics & Astronomy

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Investigation of magnetopause reconnection models using two colocated, low‐altitude satellites: A unifying reconnection geometry, A. Boudouridis, Harlan E. Spence, T. G. Onsager
Physics & Astronomy

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The Magnetospheric Mapping Mission, Harlan E. Spence
Physics & Astronomy

2000

Polar CEPPAD/IPS energetic neutral atom (ENA) images of a substorm injection, M. G. Henderson, G. D. Reeves, A. M. Jorgensen, Harlan E. Spence, L. A. Frank, J. B. Sigwarth, J. F. Fennell, J. L. Roeder, J. B. Blake, K. Yumoto, S. Bourdarie
Physics & Astronomy

Association of energetic neutral atom bursts and magnetospheric substorms, A. M. Jorgensen, L. Kepko, M. G. Henderson, Harlan E. Spence, G. D. Reeves, J. B. Sigwarth, L. A. Frank
Physics & Astronomy

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Energetic magnetosheath ions connected to the Earth's bow shock: Possible source of cusp energetic ions, S. W. Chang, J. D. Scudder, J. F. Fennell, R. Friedel, R. P. Lepping, C. T. Russell, K. J. Trattner, S. A. Fuselier, W. K. Peterson, Harlan E. Spence
Physics & Astronomy

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1999

Cusp energetic particle events measured by POLAR spacecraft, T. A. Fritz, J. Chen, R. B. Sheldon, Harlan E. Spence, J. F. Fennell, S. Livi, C. T. Russell, J. S. Pickett
Physics & Astronomy

Dayside open field line region boundary at high altitudes, J. F. Fennell, J. L. Roeder, R. Friedel, M. Grande, Harlan E. Spence
Physics & Astronomy

Energetic neutral atom imaging with the Polar CEPPAD/IPS instrument: Initial forward modeling results, M. G. Henderson, G. D. Reeves, K. R. Moore, Harlan E. Spence, A. M. Jorgensen, J. F. Fennell, J. B. Blake, E. C. Roelof
Physics & Astronomy

A study of omega bands and Ps6 pulsations on the ground, at low altitude and at geostationary orbit, A. M. Jorgensen, Harlan E. Spence, T. J. Hughes, D. McDiarmid
Physics & Astronomy

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Constellation pathfinder: a university nanosatellite, C. D. Rayburn, Harlan E. Spence, H. E. Petschek, M. Bellino, J. Vickers, M. Murphy, N. Dennehy, D. Sargent, M. Socha
Physics & Astronomy

Magnetospheric constellation: Past, present and future, V. Angelopoulos, Harlan E. Spence
Physics & Astronomy

1998

The Kilo-Satellite Constellation Concept, H. E. Petschek, C. Rayburn, R. Sheldon, J. Vickers, M. Bellino, G. Bevis, Harlan E. Spence
Physics & Astronomy

Observation of 40 keV Field-Aligned Ion Beams, J. F. Fennell, R. B. Sheldon, Harlan E. Spence
Physics & Astronomy

Cusp energetic ions: A bow shock source, S. W. Chang, J. D. Scudder, S. A. Fuselier, J. F. Fennell, K. J. Trattner, J. S. Pickett, Harlan E. Spence, J. D. Menietti, W. K. Peterson, R. P. Lepping, R. Friedel
Physics & Astronomy

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The global response of relativistic radiation belt electrons to the January 1997 magnetic cloud, G. D. Reeves, D. N. Baker, R. D. Belian, J. B. Blake, T. E. Cayton, J. F. Fennell, R. H.W. Friedel, M. M. Meier, R. S. Selesnick, Harlan E. Spence
Physics & Astronomy

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Coronal mass ejections, magnetic clouds, and relativistic magnetospheric electron events: ISTP, D. N. Baker, T. I. Pulkkinen, X. Li, S. G. Kanekal, J. B. Blake, R. S. Selesnick, M. G. Henderson, G. D. Reeves, Harlan E. Spence, G. Rostoker
Physics & Astronomy

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The discovery of trapped energetic electrons in the outer cusp, R. B. Sheldon, Harlan E. Spence, J. D. Sullivan, T. A, Fritz, Jiasheng Chen
Physics & Astronomy

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AMPTE/CCE‐SCATHA simultaneous observations of substorm‐associated magnetic fluctuations, S. Ohtani, K. Takahashi, T. Higuchi, A. T. Y. Lui, Harlan E. Spence, J. F. Fennell
Physics & Astronomy

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Cusp energetic particle events: Implications for a major acceleration region of the magnetosphere, J. Chen, T. A. Fritz, R. B. Sheldon, Harlan E. Spence, W. N. Spjeldvik, J. F. Fennell, S. Livi, C. T. Russell, J. S. Pickett, D. A. Gurnett
Physics & Astronomy

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Implementation of the Boston University Space Physics Acquisition Center, Harlan E. Spence
Physics & Astronomy

A new magnetic storm model, R. B. Sheldon, Harlan E. Spence
Physics & Astronomy

On the Physical Origin and Prediction of Killer Electron Storms, R. Sheldon, Harlan E. Spence, J. D. Sullivan, T. E. Fritz, J. Chen
Physics & Astronomy

1997

Global energetic neutral atom (ENA) measurements and their association with the Dst index, A. M. Jorgensen, Harlan E. Spence, M. G. Henderson, G. D. Reeves, M. Sugiura, T. Kamei
Physics & Astronomy

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Alfvén boundaries: noses and zippers, R. B. Sheldon, Harlan E. Spence
Physics & Astronomy

Tail lobe and open field line region entries at mid to high latitudes, J. F. Fennell, J. B. Blake, J. L. Roeder, R. Sheldon, Harlan E. Spence
Physics & Astronomy

On separating space and time variations of auroral precipitation: Dual DMSP-F6 and-F8 observations, A. M. Jorgensen, Harlan E. Spence
Physics & Astronomy

ISTP: relativistic particle acceleration and global energy transport, D. N. Baker, Harlan E. Spence, J. B. Blake
Physics & Astronomy

First observations by the CEPPAD Imaging Proton Spectrometer aboard POLAR, Harlan E. Spence, J. B. Blake
Physics & Astronomy

Towards inner magnetosphere particle and field models, Harlan E. Spence, A. M. Jorgensen, W. J. Hughes, J. F. Fennell, J. L. Roeder
Physics & Astronomy

A new, temporarily confined population in the polar cap during the August 27, 1996 geomagnetic field distortion period, Jiasheng Chen, Theodore A. Fritz, Robert B. Sheldon, Harlan E. Spence, Walther N. Spjeldvik, Joseph F. Fennell, Stefano Livi
Physics & Astronomy

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First polar and 1995-034 observations of the midaltitude cusp during a persistent northward IMF condition, M. Grande, J. Fennell, S. Livi, B. Kellett, C. Perry, P. Anderson, J. Roeder, Harlan E. Spence, T. Fritz, B. Wilken
Physics & Astronomy

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Initial POLAR MFE observation of substorm signatures in the polar magnetosphere, H. Kawano, G. Le, C. T. Russell, G. Rostoker, T. Mukai, Harlan E. Spence
Physics & Astronomy

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First energetic neutral atom images from Polar, M. G. Henderson, G. D. Reeves, Harlan E. Spence, R. B. Sheldon, A. M. Jorgensen, J. B. Blake, J. F. Fennell
Physics & Astronomy

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Recurrent geomagnetic storms and relativistic electron enhancements in the outer magnetosphere: ISTP coordinated measurements, D. N. Baker, X. Li, N. Turner, J. H. Allen, L. F. Bargatze, J. B. Blake, R. B. Sheldon, Harlan E. Spence, R. D. Belian, G. D. Reeves, S. G. Kanekal, B. Klecker
Physics & Astronomy

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1996

CRRES observations of particle flux dropout events, J. Fennell, J. Roeder, Harlan E. Spence, H. Singer, A. Korth, M. Grande, A. Vampola
Physics & Astronomy

Geospace Environment Modeling Program flourishes, Harlan E. Spence
Physics & Astronomy

The what, where, when, and why of magnetospheric substorm triggers, Harlan E. Spence
Physics & Astronomy

Low altitude signatures of the plasma sheet: Model predictions of local time dependence, K. L. Hirsch, Harlan E. Spence, T. G. Onsager
Physics & Astronomy

AMPTE/CCE and SCATHA simultaneous observations of magnetic signatures associated with a substorm onset, S. Ohtani, K. Takahashi, T. Higuchi, A. T. Y. Lui, Harlan E. Spence
Physics & Astronomy

1995

CEPPAD, J. B. Blake, J. F. Fennell, L. M. Friesen, B. M. Johnson, W. A. Kolasinski, D. J. Mabry, J. V. Osborn, S. H. Penzin, E. R. Schnauss, Harlan E. Spence, D. N. Baker, R. Belian
Physics & Astronomy

1994

Crres observations of particle flux dropout events, J. F. Fennell, J. L. Roeder, Harlan E. Spence, H. Singer, A. Korth
Physics & Astronomy

Empirical modeling of the quiet time nightside magnetosphere, A. T. Y. Lui, Harlan E. Spence, D. P. Stern
Physics & Astronomy

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1993

Surface charging analysis of high-inclination, high-altitude spacecraft: Identification and physics of the plasma source region, Harlan E. Spence, J. B. Blake, J. F. Fennell
Physics & Astronomy

Space-time structure of the morning aurora inferred from coincident DMSP-F6,-F8, and Søndrestrøm incoherent scatter radar observations, J. Watermann, O. De la Beaujardiere, Harlan E. Spence
Physics & Astronomy

Characteristics of ion flow in the quiet inner plasma sheet, V. Angelopoulos, C. F. Kennel, F. V. Coroniti, R. Pellat, Harlan E. Spence, Margaret G. Kivelson, Raymond J. Walker, W. Baumjohann, W. C. Feldman, J. T. Gosling, C. T. Russell
Physics & Astronomy

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Contributions of the low-latitude boundary layer to the finite width magnetotail convection model, Harlan E. Spence, M. G. Kivelson
Physics & Astronomy

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1992

Substorm aurorae and their connection to the inner magnetosphere, R. E. Lopez, C. I. Meng, Harlan E. Spence
Physics & Astronomy

On the standing wave mode of giant pulsations, K. Takahashi, N. Sato, J. Warnecke, H. Luhr, Harlan E. Spence, Y. Tonegawa
Physics & Astronomy

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1991

DMSP F7 observations of a substorm field‐aligned current, R. E. Lopez, Harlan E. Spence, C. Meng
Physics & Astronomy

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ULF waves in the low‐latitude boundary layer and their relationship to magnetospheric pulsations: A multisatellite observation, K. Takahashi, D. G. Sibeck, P. T. Newell, Harlan E. Spence
Physics & Astronomy

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Simultaneous observations of the westward electrojet and the cross-tail current sheet during substorms, R. E. Lopez, Harlan E. Spence, C. Meng
Physics & Astronomy

1990

Variation of the plasma-sheet polytropic index along the midnight meridian in a finite-width magnetotail, Harlan E. Spence, M. G. Kivelson
Physics & Astronomy

1989

Magnetospheric plasma pressures in the midnight meridian: Observations from 2.5 to 35 RE, Harlan E. Spence, M. G. Kivelson, R. J. Walker, D. J. McComas
Physics & Astronomy

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On the large-scale distribution of magnetospheric currents and thermal plasma: Results from magnetic field models and observations, Harlan E. Spence
Physics & Astronomy

1988

On the possibility of quasi-static convection in the quiet magnetotail, Margaret G. Kivelson, Harlan E. Spence
Physics & Astronomy

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Comparison of field-aligned currents at ionospheric and magnetospheric altitudes, Harlan E. Spence, M. G. Kivelson, R. J. Walker
Physics & Astronomy

1987

Static magnetic field models consistent with nearly isotropic plasma pressure, Harlan E. Spence, Margaret G. Kivelson, Raymond J. Walker
Physics & Astronomy

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1986

The average magnetic field draping and consistent plasma properties of the Venus magnetotail, David J. McComas, Harlan E. Spence, C. T. Russell, M. A. Saunders
Physics & Astronomy

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1985

Simulation studies of ionospheric airglow signatures of plasma depletions at the equator, Michael Mendillo, Harlan E. Spence, S. T. Zalesak
Physics & Astronomy