A revised thermospheric model based on mass spectrometer and incoherent scatter data - MSIS-83

Details A revised thermospheric model based on mass spectrometer and incoherent scatter data - MSIS-83 A revised thermospheric model based on mass spectrometer and incoherent scatter data - MSIS-83

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....8810170h&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 88, Dec. 1, 1983, p. 10170-10188.

Computer Science

Sound

323

Atmospheric Models, Incoherent Scatter Radar, Thermosphere, Atmospheric Composition, Atmospheric Density, Atmospheric Sounding, Atmospheric Temperature, Mass Spectrometers, Rocket Sounding, Solar Activity Effects

Scientific paper

It is noted that the model presented here extends the previous description of neutral parameters to the base of the thermosphere in a continuous manner while maintaining the basic structure of the MSIS model at higher altitudes. As the altitude decreases, the composition approaches lower atmosphere values, whereas yearly, and to a lesser extent daily, variations in temperature and density are in reasonable agreement with earlier results for the lower thermosphere. An alternate description is given of magnetic storm variations on the basis of the three hour ap indices and an 8- to 10-hour exponential decay in thermospheric density and temperature response after a heating event. Additional coefficients are included for the time independent and magnetic activity terms, among them a longitudinally dependent seasonal magnetic activity effect. The description of molecular oxygen derives from mass spectrometer and EUV absorption measurements rather than ion chemistry.

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