@Article{ShumeRodrMannPaul:2014:MoEqEl,
author = "Shume, E. B. and Rodrigues, F. S. and Mannucci, A. J. and Paula,
Eurico Rodrigues de",
affiliation = "{Jet Propulsion Laboratory} and {University of Texas at Dallas}
and {Jet Propulsion Laboratory} and {Instituto Nacional de
Pesquisas Espaciais (INPE)}",
title = "Modulation of equatorial electrojet irregularities by atmospheric
gravity waves",
journal = "Journal of Geophysical Research: Space Physics",
year = "2014",
volume = "119",
number = "1",
pages = "366--374",
abstract = "On 9 January 2002 and 14 November 2001, the S{\~a}o Lu{\'{\i}}s
30 MHz coherent backscatter radar observed unusual daytime echoes
scattered from the equatorial electrojet. The electrojet echoing
layers on these days, as seen in the range time intensity maps,
exhibited quasiperiodic oscillations. Time-frequency decomposition
of the magnetic field perturbations H, measured simultaneously by
the ground-based magnetometers, also showed evidence of
short-period waves. The ground-based observations were aided by
measurements of the brightness temperature in the water vapor and
infrared bands made by the GOES 8 satellite. The GOES 8 satellite
measurements indicated evidence of deep tropospheric convection
activities, which are favorable for the launch of atmospheric
gravity waves (AGW) near S{\~a}o Lu{\'{\i}}s. Our
multitechnique investigation, combined with an analysis of the
equatorial electric field and current density, indicates that AGW
forcing could have been responsible, via coupling with E region
electric fields, for the short-period electrojet oscillations
observed over S{\~a}o Lu{\'{\i}}s. Key Points Quasi-periodic
oscillation of equatorial electrojet waves Ionosphere-atmosphere
coupling Modulation of electrojet waves by gravity waves ©2014.
American Geophysical Union. All Rights Reserved.",
doi = "10.1002/2013JA019300",
url = "http://dx.doi.org/10.1002/2013JA019300",
issn = "2169-9402",
label = "scopus 2014-05 ShumeRodrMannPaul:2014:MoEqEl",
language = "en",
urlaccessdate = "27 abr. 2024"
}