Journal ArticleDOI
On calculating ionospheric conductances from the flux and energy of precipitating electrons
TLDR
Auroral zone conductances can be estimated from the energy flux and average energy of precipitating electrons Revised expressions are presented that relate height-integrated Hall and Pedersen conductance to the flux and energy of a Maxwellian as mentioned in this paper.Abstract:
Auroral zone conductances can be estimated from the energy flux and average energy of precipitating electrons Revised expressions are presented that relate height-integrated Hall and Pedersen conductance to the flux and average energy of a Maxwellian It is shown that the accuracy of this method depends on the minimum and maximum energy within which the distribution is integrated to get the energy flux and average energy It is also confirmed that the conductances produced by some of the more common auroral spectral distributions are similar to those produced by a Maxwellian with the same average energy and energy flux The application of these results is demonstrated using precipitating electron measurements made by the Hilat satellite during a pass over Greenlandread more
Citations
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Space Weather Modeling Framework: A new tool for the space science community
Gabor Toth,Igor V. Sokolov,Tamas I. Gombosi,David Chesney,C. Robert Clauer,D. L. De Zeeuw,Kenneth C. Hansen,K. Kane,Ward B. Manchester,R. C. Oehmke,Kenneth G. Powell,Aaron J. Ridley,Ilia I. Roussev,Quentin F. Stout,O. Volberg,Richard A. Wolf,Stanislav Sazykin,Anthony A. Chan,Bin Yu,József Kóta +19 more
TL;DR: The Space Weather Modeling Framework (SWMF) as discussed by the authors provides a high-performance flexible framework for physics-based space weather simulations, as well as for various space physics applications.
Journal ArticleDOI
A decade of the Super Dual Auroral Radar Network (SuperDARN): scientific achievements, new techniques and future directions
Gareth Chisham,Mark Lester,Steve Milan,Mervyn P. Freeman,William A. Bristow,Adrian Grocott,Kathryn A. McWilliams,J. M. Ruohoniemi,Tim K. Yeoman,Peter. Dyson,R. A. Greenwald,Takashi Kikuchi,Michael Pinnock,J.P.S. Rash,Noriaki K. Sato,George J. Sofko,Jean-Paul Villain,Anthony Walker +17 more
TL;DR: The Super Dual Auroral Radar Network (SuperDARN) as discussed by the authors has been operating as an international co-operative organization for over 10 years and has been successful in addressing a wide range of scientific questions concerning processes in the magnetosphere, ionosphere, thermosphere, and mesosphere, as well as general plasma physics questions.
Journal ArticleDOI
Mapping electrodynamic features of the high-latitude ionosphere from localized observations: technique
TL;DR: In this article, the authors describe a procedure for mapping high-latitude electric fields and currents and their associated magnetic variations, using sets of localized observational data derived from different types of measurements.
Journal ArticleDOI
High-Latitude F-Region Irregularities: A Review and Synthesis
TL;DR: In this article, the authors synthesize a descriptive model of plasma structures in the high-latitude F layer that unifies most of the diverse and independent observations, including the formation of 1000 km-scale "patches" in the polar cap from solar-produced plasma that is transported poleward from lower latitudes; the reconfiguration of patches as they convect into the auroral region and become the latitudinally confined, but longitudinally extended, plasma density enhancements near the equatorward auroral boundary; and the production of localized enhancements and depletions
Journal ArticleDOI
Statistical and functional representations of the pattern of auroral energy flux, number flux, and conductivity
TL;DR: In this article, the global maps of the integral energy flux, integral number flux, and height-integrated Hall and Pedersen conductivities at each level of Kp were fit using both spherical harmonic and Epstein functions.
References
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Journal ArticleDOI
Auroral ionization and excitation by incident energetic electrons
TL;DR: In this paper, the luminosity profiles for the N 2 + 1 N.G. (0, 0) band are predicted for various energy distributions of auroral electrons in the energy range 0.4 to 300 keV.
Journal ArticleDOI
Precipitating electron fluxes formed by a magnetic field aligned potential difference
TL;DR: In this paper, a model is developed in which a magnetic field aligned potential difference is assumed to accelerate electrons downward into the atmosphere, and the upgoing backscattered electrons produced by this electron beam may process insufficient kinetic energy to overcome the hypothetical potential difference.
Journal ArticleDOI
Precipitating electron energy flux and auroral zone conductances - An empirical model
TL;DR: In this article, the average global distribution of the energy flux of precipitating auroral electrons and their average energy for different levels of geomagnetic activity was determined using data from the low energy electron (LEE) experiments on the Atmosphere Explorer C and D satellites.
Journal ArticleDOI
A new model for the interaction of auroral electrons with the atmosphere: Spectral degradation, backscatter, optical emission, and ionization
TL;DR: In this paper, a new computational model has been created to describe the interaction of auroral electrons with the atmosphere, which is used to compute energy spectrums, ionization rates, backscatter ratios, and optical emissions associated with different incident electron spectrums.
Journal ArticleDOI
Empirical models of height integrated conductivities
D. D. Wallis,E. E. Budzinski +1 more
TL;DR: In this paper, two-dimensional distributions of the heightintegrated Pedersen and Hall conductivities have been computed for latitudes poleward of 60/sup 0/ invariant representative of two activity levels: 0< or =K/sub p/< or 3/sub 0/22 keV obtained by the energetic particle detector of Isis 2 during 1971-1974 are used as input to a Rees-type computation.
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