A thermospheric model based on satellite drag data

Details A thermospheric model based on satellite drag data A thermospheric model based on satellite drag data

Mar 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978ang....34....9b&link_type=abstract

Annales de Geophysique, vol. 34, Jan.-Mar. 1978, p. 9-24. Research supported by the Direction des Recherches et Moyens d'Essais

Physics

3

Atmospheric Models, Satellite Drag, Spherical Harmonics, Thermosphere, Annual Variations, Atmospheric Density, Atmospheric Temperature, Diurnal Variations, Geomagnetism, Magnetic Effects, Mass Spectroscopy, Solar Activity Effects, Solar Cycles, Three Dimensional Models

Scientific paper

A three-dimensional thermospheric model is developed in terms of spherical harmonics by using satellite drag data which cover a time-period of almost two solar cycles. The model gives total density, partial densities (He, O, N2) and temperature as a function of solar and geomagnetic activity, local time, day of the year, altitude and latitude. The partial densities given by the model are in rather good agreement with various in situ measurements which were, however, not involved in the construction of the model. The amplitude of the winter helium bulge is, however, less important than the value obtained from mass spectrometer measurements.

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