Storm time meridional wind perturbations in the equatorial upper thermosphere
| Autor: | Haaser, R. A., Davidson, R., Heelis, R. A., Earle, Gregory D., Venkatraman, S., Klenzing, J. |
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| Přispěvatelé: | Electrical and Computer Engineering, Center for Space Science and Engineering Research (Space@VT) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Latitude
Geomagnetic storms Temperature Density CNOFS Solar Geomagnetic Physics::Geophysics Imaging interferometer Satellite Period Physics::Space Physics Storm Astrophysics::Solar and Stellar Astrophysics Upper-atmosphere Astrophysics::Earth and Planetary Astrophysics Neutral winds Ionosphere Thermosphere Physics::Atmospheric and Oceanic Physics |
| Popis: | We present observations from the Coupled Ion Neutral Dynamics Investigation (CINDI) of storm time meridional winds in the neutral atmosphere near the magnetic equator at 400km altitude. Observations near the magnetic equator in the southern geographic hemisphere are dominated by energy inputs from the southern Polar Regions that produce south to north (equatorward) wind perturbations to accompany perturbations in the neutral density and temperature. In one exceptional case, when observations are made near midnight and the north magnetic pole rotates through the midnight sector, north to south (poleward) meridional wind perturbations are observed just south of the magnetic equator. Accompanying perturbations in the neutral density on the dayside and the nightside are consistent with observed increases in the ion temperature and inferred increases in the neutral temperature in accord with hydrostatic equilibrium. NASA NNX10AT02G |
| Databáze: | OpenAIRE |
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