Storm Time Effects on Latitudinal Distribution of Ionospheric TEC in the American and Asian-Australian Sectors: August 25–26, 2018 Geomagnetic Storm

Bolaji，O. S.1,2,3; Fashae，J. B.3; Adebiyi，S. J.4; Owolabi，Charles5; Adebesin，B. O.4; Kaka，R. O.6; Ibanga，Jewel7; Abass，M.8; Akinola，O. O.9; Adekoya，B. J.10; Younas，W.11

2021-08-01

10.1029/2020JA029068

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS   影响因子和分区

2169-9380

2169-9402

On the dayside of August 25–26, 2018 (main phase, MP of the storm), we unveiled the storm time effects on the latitudinal distribution of ionospheric total electron content (TEC). We used 17 and 19 Global Positioning System receivers in American and Asian-Australian sectors, respectively. Also, we employed a pair of magnetometers in each sector to unveil storm time effects on vertical E × B upward directed inferred drift velocity in the F region ionosphere. Also used is NASA Thermosphere Ionosphere Mesosphere Energetics and Dynamics satellite airglow instrument to investigate storm time changes in neutral composition, O/N ratio. In this investigation, we corrected the latitudinal offset found in the works of Younas et al. (2020, https://doi.org/10.1029/2020JA027981). Interestingly, we observed that a double-humped increase (DHI) seen at a middle latitude station (MGUE, ∼22°S) after the MP on the dayside in American sector (Younas et al., 2020, https://doi.org/10.1029/2020JA027981) did straddle ∼23.58°N and ∼22°S. On August 25, 2018, storm commencement was evident in Sym-H (∼−8 nT) around 18:00 UT. It later became intensified (∼−174 nT) on August 26 around 08:00 UT. During storm's MP (after the MP), fountain effect operation was significantly enhanced (inhibited) in Asian-Australian (American) sector. Middle latitude TEC during MP got reduced in American sector (13:00 LT–15:40 LT) compared to those seen in Asian-Australian sector (13:00 LT–15:40 LT). The northern equatorial peak (∼25 TECU) seen at IHYO (14:00 LT) after MP in the American sector is higher when compared with that (∼21 TECU) seen at PPPC (11:40 LT) during MP in Asian-Australian sector.

double-humped increase (DHI) equatorial ionization anomaly (EIA) prompt penetrating electric field (PPEF) storm time equatorward wind

SCI

英语

其他

National Aeronautic and Space Administration (NASA) under the NSF[EAR-0735156]

Astronomy & Astrophysics

Astronomy & Astrophysics

WOS:000691018000017

AMER GEOPHYSICAL UNION

SPACE SCIENCE

2-s2.0-85113754653

Scopus

1.Department of Physics,University of Lagos,Lagos,Nigeria
2.Department of Mathematics and Physics,University of Tasmania,Hobart,Australia
3.Department of Physics and Solar Energy,Bowen University,Iwo,Nigeria
4.Department of Physical Sciences,Landmark University,Omu-Aran,Nigeria
5.Department of Earth and Space Sciences,Southern University of Science and Technology,Shenzhen,China
6.Bradley Department of Electrical and Computer Engineering,Space@VT Laboratory,Virginia Tech,United States
7.Department of Physics,Akwa Ibom State University,Uyo,Nigeria
8.Department of Physics,Kebbi State University of Science and Technology,Aliero,Nigeria
9.CAR,National Space Research and Development Agency,Abuja,Nigeria
10.Olabisi Onabanjo University,Ago-Iwoye,Nigeria
11.Department of Physics,Quaid-i-Azam University Islamabad,Islamabad,Pakistan

Bolaji，O. S.,Fashae，J. B.,Adebiyi，S. J.,等. Storm Time Effects on Latitudinal Distribution of Ionospheric TEC in the American and Asian-Australian Sectors: August 25–26, 2018 Geomagnetic Storm[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2021,126(8).

Bolaji，O. S..,Fashae，J. B..,Adebiyi，S. J..,Owolabi，Charles.,Adebesin，B. O..,...&Younas，W..(2021).Storm Time Effects on Latitudinal Distribution of Ionospheric TEC in the American and Asian-Australian Sectors: August 25–26, 2018 Geomagnetic Storm.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,126(8).

Bolaji，O. S.,et al."Storm Time Effects on Latitudinal Distribution of Ionospheric TEC in the American and Asian-Australian Sectors: August 25–26, 2018 Geomagnetic Storm".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 126.8(2021).