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

The ultra-fast Kelvin waves in the equatorial ionosphere: observations and modeling

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Author(s):
Onohara, A. N. [1] ; Batista, I. S. [1] ; Takahashi, H. [1]
Total Authors: 3
Affiliation:
[1] Inst Nacl Pesquisas Espaciais, Aeron Div, BR-12201 Sao Jose Dos Campos - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Annales Geophysicae; v. 31, n. 2, p. 209-215, 2013.
Web of Science Citations: 7
Abstract

The main purpose of this study is to investigate the vertical coupling between the mesosphere and lower thermosphere (MLT) region and the ionosphere through ultra-fast Kelvin (UFK) waves in the equatorial atmosphere. The effect of UFK waves on the ionospheric parameters was estimated using an ionospheric model which calculates electrostatic potential in the E-region and solves coupled electrodynamics of the equatorial ionosphere in the E- and F-regions. The UFK wave was observed in the South American equatorial region during February-March 2005. The MLT wind data obtained by meteor radar at Sao Joao do Cariri (7.5 degrees S, 37.5 degrees W) and ionospheric F-layer bottom height (h'F) observed by ionosonde at Fortaleza (3.9 degrees S; 38.4 degrees W) were used in order to calculate the wave characteristics and amplitude of oscillation. The simulation results showed that the combined electrodynamical effect of tides and UFK waves in the MLT region could explain the oscillations observed in the ionospheric parameters. (AU)

FAPESP's process: 11/11071-0 - Study and characterization of the longitudinal four peaks structure present in observations of the equatorial anomaly ionization performed by satellite
Grantee:Amelia Naomi Onohara
Support Opportunities: Scholarships in Brazil - Post-Doctoral