Ionosphere-thermosphere momentum coupling at solar maximum and solar minimum from DE-2 and AE-C data
| Autor: | Larry H. Brace, K. M. Lee, J. J. Ponthieu, Timothy L. Killeen, G. R. Carignan, W. R. Hoegy |
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| Rok vydání: | 1988 |
| Předmět: |
Physics
Solar minimum Momentum (technical analysis) Momentum transfer Condensed Matter Physics Solar maximum Atmospheric sciences Atomic and Molecular Physics and Optics Computational physics Solar cycle Physics::Space Physics Geomagnetic latitude Astrophysics::Earth and Planetary Astrophysics Ionosphere Thermosphere Mathematical Physics |
| Zdroj: | Physica Scripta. 37:447-453 |
| ISSN: | 1402-4896 0031-8949 |
| DOI: | 10.1088/0031-8949/37/3/028 |
| Popis: | DE-2 and AE-C measurements of plasma and neutral densities were used to derive time constants for momentum transfer (MT) to neutrals from ions in the high-latitude thermosphere. The MT time constants for solar cycle maximum (DE-2) and for solar cycle minimum (AE-C) were averaged and binned according to geomagnetic latitude and LT to provide a quantitative measure for the tightness of ion-neutral momentum coupling (MC) in the 250-350-km altitude range. Comparisons with results obtained using the Chiu and MSIS-83 empirical models have provided an indication of the accuracy with which thermospheric general circulation models quantitatively reproduce the MC between ions and neutrals in the high-latitude F-region. |
| Databáze: | OpenAIRE |
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