@Article{JonahCoZhGoErPaKh:2018:TIObSo,
author = "Jonah, Olusegun Folarin and Coster, A. and Zhang, Shunrong and
Goncharenko, Larisa P. and Erickson, Philip John and Paula, Eurico
Rodrigues de and Kherani, Esfhan Alam",
affiliation = "Haystack Observatory, Massachusetts Institute of Technology and
Haystack Observatory, Massachusetts Institute of Technology and
Haystack Observatory, Massachusetts Institute of Technology and
Haystack Observatory, Massachusetts Institute of Technology and
Haystack Observatory, Massachusetts Institute of Technology and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
title = "TID Observations and Source Analysis During the 2017 Memorial Day
Weekend Geomagnetic Storm Over North America",
journal = "Journal of Geophysical Research: Space Physics",
year = "2018",
volume = "123",
number = "10",
pages = "8749--8765",
month = "Oct.",
keywords = "LSTID, MSTID, TEC, geomagnetic storm, poleward TID, equatorward
TID.",
abstract = "We investigate ionospheric perturbations associated with traveling
ionospheric disturbance (TID) during the geomagnetic storm on
Memorial Day weekend (28 May) 2017. Results show the presence of
both equatorward propagating large-scale TIDs (LSTIDs) and
poleward propagating medium-scale TIDs. Equatorward moving TIDs
are connected with enhanced auroral activity owing to geomagnetic
storm conditions, while poleward TIDs are believed to be induced
by local atmospheric gravity wave sources originating from
convection activities near the West Coast of North America.
Measurements from magnetometers located in the west, central, and
east regions of North America are used to evaluate energy inputs
from the auroral belt, and these observations confirm that
equatorward LSTIDs are due to geomagnetic disturbance. The
observed LSTID waves were characterized by some uncommon features,
such as horizontal wavefront stretching from coast to coast,
aligned in the NW to SE direction, and propagating to the
southwest (equatorward) direction during the storm main phase
period. In contrast, during the recovery phase and on other
experimental control days, the observed medium-scale TIDs were
characterized with relatively smaller wavelengths aligned in the
NW to SE direction and propagate primarily in the northeast
(poleward) direction. Our results also reveal that LSTID waves
appear to travel faster in the central continental region compared
to LSTIDs in the western and eastern regions. Plain Language
Summary This study reveals the coupling of magnetosphere and
ionosphere system as well as the interaction between the lower and
upper atmosphere. Using the Global Navigation Satellite Systems
(GNSS) receivers widely distributed over United States, networks
of magnetometers over North America, and satellite measurements
from the National Oceanic and Atmospheric
Administration-Geostationary Operational Environmental Satellite
(NOAA-GOES) and Sounding of the Atmosphere using Broadband
Emission Radiometry (SABER) missions, we investigated the
traveling ionospheric disturbance (TID) characteristics during the
28 May 2017 Memorial Day weekend geomagnetic storm and some quiet
geomagnetic periods. Our results show equatorward large-scale TID
owning to the 2017 Memorial Day weekend geomagnetic storm and
poleward medium-scale TID propagation owning to atmospheric
convection activity over the continental United States.",
doi = "10.1029/2018JA025367",
url = "http://dx.doi.org/10.1029/2018JA025367",
issn = "2169-9402",
language = "en",
targetfile = "jonah_tid.pdf",
urlaccessdate = "15 jun. 2024"
}