Boundary conditions for the neutral and ionospheric transport equations at the base of the equatorial F region

Journal Article · Tue Dec 01 00:00:00 EST 1987 · J. Geophys. Res.; (United States)

DOI:https://doi.org/10.1029/JA092iA12p13629· OSTI ID:5514213

Duhau, S; Louro, A A

In previous works, the authors used a simple model of the equatorial E and F regions to predict simultaneously zonal neutral and ion velocities and vertical currents at the base of the F region. In this work, the model is extended to include effects not considered previously: ion-neutral drag at the F region base, the E region dynamo electric field, and the F region zonal electric field. The model is used to predict the variables mentioned above as functions of time and latitude. The results of the calculations show first that the ion velocity is quite sensitive to the combination of the three effects, and a substantial improvement over previous results is found upon comparison with meaured values. The calculated zonal neutral wind also reveals the influence of ion drag through its latitudinal variations. Finally, the current density perpendicular to the geomagnetic field exhibits two pronounced peaks of the order of 10/sup -7/ A m/sup -2/ sunrise and sunset at the dip equator. copyright American Geophysical Union 1987

• Research Organization: Departamento de Fisica, Pabellon I, Universidad de Buenos Aires, Argentina
• OSTI ID: 5514213
• Journal Information: J. Geophys. Res.; (United States), Vol. 92:A12
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
F REGION
ELECTRIC FIELDS
LATITUDE EFFECT
BOUNDARY CONDITIONS
DAILY VARIATIONS
DRAG
E REGION
EQUATIONS OF MOTION
IONS
PLASMA SIMULATION
TIME DEPENDENCE
CHARGED PARTICLES
DIFFERENTIAL EQUATIONS
EARTH ATMOSPHERE
EQUATIONS
GEOGRAPHICAL VARIATIONS
IONOSPHERE
PARTIAL DIFFERENTIAL EQUATIONS
PLANETARY IONOSPHERES
SIMULATION
VARIATIONS
640201* - Atmospheric Physics- Auroral
Ionospheric
& Magetospheric Phenomena