Compatibility of seasonal variations in mid-latitude thermospheric models at solar maximum and low geomagnetic activity

Details Compatibility of seasonal variations in mid-latitude thermospheric models at solar maximum and low geomagnetic activity Compatibility of seasonal variations in mid-latitude thermospheric models at solar maximum and low geomagnetic activity

Mar 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978jgr....83.1141a&link_type=abstract

Journal of Geophysical Research, vol. 83, Mar. 1, 1978, p. 1141-1144.

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1

Atmospheric Composition, Atmospheric Models, Exosphere, Midlatitude Atmosphere, Solar Activity Effects, Thermosphere, Annual Variations, Geomagnetism, Nitrogen, Ogo-6, Oxygen Atoms, Remote Sensors, Satellite Observation

Scientific paper

Satellite drag data, in situ mass spectrometer data, Fabry Perot interferometer data, and incoherent scatter data were used to produce models of the concentration of atomic oxygen and molecular nitrogen in the thermosphere and of the exospheric temperature. Incoherent scatter data from two stations near 45 deg N were used. The three techniques provide similar patterns for the annual variations of the atomic oxygen concentration at 400 km, and the mean annual temperatures are within 20 K of each other for five of the six models involved. Four of the models are in good agreement concerning the annual temperature variation. There is fair agreement between incoherent scatter models and mass spectrometer models for the N2 concentrations at 400 km but disagreement between these models and the satellite drag model. It is shown that most disagreements can be resolved by changing both the vertical temperature profile and the lower-thermosphere oxygen concentration in the direction indicated by previous incoherent scatter measurements.

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