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Abbravation: Annales Geophysicae

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Copernicus GmbH

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10.1007/bf01468435

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0992-7689

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Cooling rate of thermal electrons by electron impa

Authors: Pavlov A V Berrington K A
Publish Date: 1999/07/31
Volume: 17, Issue: 7, Pages: 919-924
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Abstract

Abstract The atomic oxygen fine structure cooling rate of thermal electrons based on new effective collision strengths for electron impact excitation of the groundstate 3P finestructure levels in atomic oxygen have been fitted to an analytical expression which is available to the researcher for quick reference and accurate computer modeling with a minimum of calculations We found that at the F region altitudes of the ionosphere the new cooling rate is much less than the currently used fine structure cooling rates up to a factor of 24 and this cooling rate is not the dominant electron cooling process in the F region of the ionosphere at middle latitudes Key words Atmospheric composition and structure thermosphere · composition and density · Ionosphere midlatitude ionosphere modelling and forecasting

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  1. Equatorial ionospheric response to isolated auroral substorms over a solar cycle (1980−85): evidence of longitudinal anomaly
  2. The relationship between VHF radar auroral backscatter amplitude and Doppler velocity: a statistical study
  3. Long-period fading in atmospherics during severe meteorological activity and associated solar geophysical phenomena at low latitudes
  4. A statistical analysis for pattern recognition of small cloud particles sampled with a PMS-2DC probe
  5. Inversion, error analysis, and validation of GPS/MET occultation data
  6. Electron cyclotron waves in the presence of parallel electric fields in the Earth's auroral plasma
  7. Methods of detection and estimation errors in ST radar studies
  8. Simultaneous observations of the 2-day wave at London (43°N, 81°W) and Saskatoon (52°N, 107°W) near 91 km altitude during the two years of 1993 and 1994
  9. Low frequency waves in plasmas with spatially varying electron temperature
  10. A generation mechanism for chorus emission
  11. MUREX: a land-surface field experiment to study the annual cycle of the energy and water budgets
  12. Observations of long-lived solar wind streams during 1990-1993
  13. On the prediction of solar activity using different neural network models
  14. ELF wave generation in the ionosphere using pulse modulated HF heating: initial tests of a technique for increasing ELF wave generation efficiency
  15. Comparison of F-region electron density observations by satellite radio tomography and incoherent scatter methods
  16. An overview of a heavy rain event in southeastern Iberia: the role of large-scale meteorological conditions
  17. The structure and origin of magnetic clouds in the solar wind
  18. Outflowing ionospheric oxygen-ion motion in a reconfigurating magnetosphere
  19. Long duration Pc 5 compressional pulsations inside the Earth's magnetotail lobes
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