Thermospheric meridional wind control of equatorial spread F and evening prereversal electric field

Abdu‚ MA; Iyer‚ K.N.; de Medeiros‚ RT; Batista‚ I.S.; Sobral‚ J.H.A.

Advanced search

Search - Use quotation marks to get a more specific result

Index

Field of knowledge

Start date

Betweenand

(Reference retrieved automatically from Google Scholar through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Thermospheric meridional wind control of equatorial spread F and evening prereversal electric field

Full text
Author(s):	Abdu‚ MA ; Iyer‚ K.N. ; de Medeiros‚ RT ; Batista‚ I.S. ; Sobral‚ J.H.A. Total Authors: 5
Document type:	Journal article
Source:	Geophysical Research Letters; v. 33, n. 7, p. L07106, 2006.
Abstract
The role of the evening prereversal zonal electric field enhancement (PRE) as conducive to equatorial spread F (ESF)/plasma bubble development versus that of the magnetic meridional wind as a suppressing factor is examined using digital ionosonde data from an equatorial site, Sao Luis (SL), and a low latitude site, Cachoeira Paulista (CP) in Brazil. The evening vertical plasma drift (Vz) over SL is used, together with the F layer peak height (hmF2) over CP, to compute the magnetic meridional wind. The analysis performed for two epochs, that is, March-April of 1999 and 2001, provide consistent evidence that the magnetic meridional wind can negatively influence the ESF development in two ways: (a) by reduced development of the PRE and. (b) by direct suppression of the bubble growth. (AU)

FAPESP's process:	99/00437-0 - Studies of the interactive processes of the equatorial ionosphere-thermosphere system
Grantee:	Mangalathayil Ali Abdu
Support Opportunities:	Research Projects - Thematic Grants

Short URL