@InProceedings{SilvaTakaWrasFigu:2017:CaIoPl,
author = "Silva, Diego Barros and Takahashi, Hisao and Wrasse, Cristiano Max
and Figueiredo, Cosme Alexandre Oliveira Barros",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "Caracteristics of ionospheric plasma bubbles observed by tec maps
in brazilian sector",
year = "2017",
organization = "International Congress of the Brazilian Geophysical Sociey, 15.",
abstract = "Using ionospheric TEC (Total Electron Content) maps provided by
the Embrace Program/INPE (Brazilian Space Weather Study and
Monitoring) it was possible to characterize the ionospheric plasma
bubbles, the zonal drift velocity and the distance between
consecutive bubbles observed in the Brazilian equatorial region
from November 2012 to January 2016. The TEC maps were analyzed
using the keogram technique. The data with more than 400 nights
were analyzed with the presence of plasma bubbles between 18-03 HL
(local time). The observed mean zonal drift velocities were
between 65 and 125 m/s and the mean distances between consecutive
plasma bubbles were between 640 and 900 km, these values being
greater than previously observed. The results show that the
ionospheric plasma bubbles present a significant latitudinal
gradient in both zonal drift velocity and the distance between
bubbles. In addition, the decrease of zonal drift velocities
during a night was more clear to see in the region near the
equatorial ionization anomaly.",
conference-location = "Rio de Janeiro, RJ",
conference-year = "31 jul. - 03 ago.",
targetfile = "silva_characteristics.pdf",
urlaccessdate = "27 abr. 2024"
}