@Article{AbduBBGPBBT:2015:FaUlKe,
author = "Abdu, Mangalathayil Ali and Brum, Christiano G. M. and Batista,
Paulo Prado and Gurubaran, Subramanian and Pancheva, Dora and
Bageston, Jos{\'e} Valentin and Batista, Inez Staciarini and
Takahashi, Hisao",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {SRI
International} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Indian Institute of Geomagnetism} and {Bulgarian
Academy of Sciences} and {Instituto Nacional de Pesquisas
Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais
(INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
title = "Fast and ultrafast Kelvin wave modulations of the equatorial
evening F region vertical drift and spread F development",
journal = "Earth, Planets and Space",
year = "2015",
volume = "67",
number = "1",
abstract = "In this paper, we investigate the role of eastward and upward
propagating fast (FK) and ultrafast Kelvin (UFK) waves in the
day-to-day variability of equatorial evening prereversal vertical
drift and post sunset generation of spread F/plasma bubble
irregularities. Meteor wind data from Cariri and Cachoeira
Paulista (Brazil) and medium frequency (MF) radar wind data from
Tirunelveli (India) are analyzed together with
Thermosphere-Ionosphere-Mesosphere Energetics and
Dynamics/Sounding of the Atmosphere using Broadband Emission
Radiometry (TIMED/SABER) temperature in the 40- to 100-km region
to characterize the zonal and vertical propagations of these
waves. Also analyzed are the F region evening vertical drift and
spread F (ESF) development features as diagnosed by Digisonde
(Lowell Digisonde International, LLC, Lowell, MA, USA) operated at
Fortaleza and Sao Luis in Brazil. The SABER temperature data
permitted determination of the upward propagation characteristics
of the FK (E1) waves with propagation speed in the range of 4
km/day. The radar mesosphere and lower thermosphere (MLT) winds in
the widely separated longitude sectors have yielded the eastward
phase velocity of both the FK and UFK waves. The vertical
propagation of these waves cause strong oscillation in the F
region evening prereversal vertical drift, observed for the first
time at both FK and UFK periodicities. A delay of a few
(approximately 10) days is observed in the F region vertical drift
perturbation with respect to the corresponding FK/UFK zonal wind
oscillations, or temperature oscillations in the MLT region, which
has permitted a direct identification of the sunset electrodynamic
coupling process as being responsible for the generation of the
FK/UFK-induced vertical drift oscillation. The vertical drift
oscillations are found to cause significant modulation in the
spread F/plasma bubble irregularity development. The overall
results highlight the role of FK/UFK waves in the day-to-day
variability of the ESF in its occurrence season.",
doi = "10.1186/s40623-014-0143-5",
url = "http://dx.doi.org/10.1186/s40623-014-0143-5",
issn = "1343-8832",
language = "en",
urlaccessdate = "27 abr. 2024"
}