@InProceedings{BalanAlThLyOtFeAb:2008:F3LaDu,
author = "Balan, N. and Alleyne, H. and Thampi, S. V. and Lynn, K. and
Otsuka, Y. and Fejer, B. G. and Abdu, Mangalathayil Ali",
affiliation = "{University of Sheffield} and {University of Sheffield} and
{Vikram Sarabhai Space Centre} and {Ionospheric Systems Research}
and {Nagoya University} and {Utah State University} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "F3 layer during penetration electric field",
booktitle = "Proceedings...",
year = "2008",
organization = "International Symposium on Equatorial Aeronomy, 12.",
abstract = "The occurrence of an additional layer, called F3 layer, in the
equatorial ionosphere at American, Indian and Australian
longitudes during the super double geomagnetic storm of 07-11
November 2004 are presented using observations and modeling. The
available observations show the occurrence, reoccurrence and quick
ascent to the topside ionosphere of unusually strong F3 layer in
Australian longitude during the first and second super storms (08
and 10 November) and in Indian longitude during the second super
storm (10 November), all with large simultaneous reductions in
peak electron density (Nmax) and total electron content (GPS-TEC);
the F3 layer also occurred in Australian longitude on the
comparatively less active day (09 November) though of a different
character. The modeling studies conducted using the Sheffield
University Plasmasphere Ionosphere Model (SUPIM) indicate that the
unusual F3 layers during the super storms might have been caused
mainly by unusually large double peaked equatorial upward ExB
drift (or eastward electric field). The indication is supported by
the simultaneous observations of the strongest daytime eastward
prompt penetration electric field (PPEF) ever recorded (at
Jicamarca) and large depletions in Nmax (at Jicamarca and Sau
Luis) at American longitude; the depletions are also modeled by
incorporating the PPEF. The large depletions in Nmax that occurred
during the afternoonevening hours (14-17 LT) are also followed by
unexpected unusally large increases in Nmax (greater than daytime
Nmax) during the following evening hours (17-23 LT) due to the
large downward ExB drift or reverse plasma fountain.",
conference-location = "Crete, Greece",
conference-year = "18-24 may",
label = "self-archiving-INPE-MCTIC-GOV-BR",
language = "en",
targetfile = "balan_f3.pdf",
urlaccessdate = "05 jun. 2024"
}