Results 121 to 130 of about 338 (148)

SOURCE ANALYSIS OF DAYTIME MSTID USING OBSERVATION AND SIMULATION

2023
Atmospheric gravity waves are known to be the source of medium-scale traveling ionospheric disturbances (MSTIDs) in the upper atmosphere. In recent studies, these gravity waves have mostly been linked to weather convection activities from tropospheric altitudes during the daytime.
Olusegun Jonah, O F Jonah, E A Kherani, E R De Paula   +3 more
openaire   +1 more source

Investigation of the Vertical Slope of MSTID Phase Fronts From GNSS Data

Proceedings of the XXXVth URSI General Assembly and Scientific Symposium – GASS 2023, 2023
Adel Akchurin
exaly   +2 more sources

MSTID extraction from more frequent ionograms

2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2017
The paper shows the possibility of rapid extraction from more frequent ionograms not only strong medium-scale traveling ionospheric disturbances (MSTIDs) in the F region in the form of cusps and hooks, but also weak MSTIDs, whose form may differ from the cusp (hook) shaped. To isolate these MSTIDs will be enough to follow the slope of the F layer cusp (
Adel Akchurin, Gregory Smirnov
openaire   +1 more source

Multi-Instrument Observations of MSTIDs and Source Determination

2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC), 2018
A multi-day (6–8 May 2013), apparently medium-scale traveling ionospheric disturbance (MSTID) event with an ∼1 hour period was recorded using both the vertical-looking and steerable Millstone Hill incoherent scatter radar (ISR) systems during quiet geomagnetic activity.
Ross Dinsmore, J. D. Mathews, Anthea Coster, Sumanta Sarkhel   +3 more
openaire   +1 more source

Equatorial Plasma Bubble Occurrence Under Propagation of MSTID and MLT Gravity Waves

Journal of Geophysical Research: Space Physics, 2020
Abstract We observed a signature of equatorial plasma bubbles (EPBs) followed by a medium‐scale traveling ionospheric disturbance (MSTID) crossing the solar terminator over the geomagnetic equator during the period of post‐sunset rise (PSSR) of the F layer.
Mangalathayil A Abdu, Crsitiano Max Wrasse, Igo Paulino   +2 more
exaly   +3 more sources

Features of observing for weak MSTIDs by GNSS satellites

2019 URSI Asia-Pacific Radio Science Conference (AP-RASC), 2019
© 2019 URSI. All rights reserved. To analyze the weak midlatitude medium-scale travelling ionospheric disturbances we use the sufficiently dense network of GNSS receivers (more than 150 ground-based stations). We show the reason that the monitoring for MSTIDs by GNSS satellites is fragmented.
Sherstyukov R., Akchurin A., Sherstyukov O.   +2 more
openaire   +2 more sources

The influence of ionospheric neutral wind variations on the propagation of a MSTID event

2021
<p>The event reports a special case of the propagation and morphology of medium scale travelling ionospheric disturbances (MSTIDs) over middle–latitude China. The MSTIDs were simultaneously observed by the all-sky imager, Swarm satellite, as well as the total electron content (TEC) from global positioning system (GPS).
Ji Luo, Jiyao Xu, Kun Wu, Wenbin Wang, Chao Xiong, Wei Yuan   +5 more
openaire   +1 more source

A case study on multiple self-interactions of MSTID bands: New insights

Advances in Space Research, 2023
In this study, we report a special event of nighttime southwestward propagating medium scale traveling ionospheric disturbances (MSTIDs) observed in O(1D) 630.0 nm airglow images from an all-sky imager at Hanle (32.7°N, 78.9°E; Mlat. ~24.1°N), Ladakh, India on a geomagnetically quiet (Ap = 7) night of 15 September 2018.
Dipjyoti Patgiri, Rahul Rathi, Virendra Yadav, Sumanta Sarkhel, Dibyendu Chakrabarty, Subarna Mondal, M.V. Sunil Krishna, Arun K. Upadhayaya, Chiranjeevi G. Vivek, Suresh Kannaujiya, Surendra Sunda   +10 more
openaire   +1 more source

Investigations of conjugate MSTIDS over the Brazilian sector during daytime

Journal of Geophysical Research: Space Physics, 2017
AbstractThis study focuses on the daytime medium‐scale traveling ionospheric disturbances (MSTIDs) observed at conjugate hemispheres. It is the first time that the geomagnetical conjugate daytime MSTIDs are observed over the South America sector. To observe the MSTID characteristics, we used detrended total electron content (TEC) derived from Global ...
O. F. Jonah, E. A. Kherani, E. R. De Paula   +2 more
openaire   +1 more source

Collocated ionosonde and dense GPS/GLONASS network measurements of midlatitude MSTIDs

Advances in Space Research, 2018
© 2017 COSPAR To analyze midlatitude medium-scale travelling ionospheric disturbances (MSTIDs) over Kazan (55.5°N, 49°E), Russia, the sufficiently dense network of GNSS receivers (more than 150 ground-based stations) were used. For the first time, daytime MSTIDs in the form of their main signature (band structure) on high-resolution two-dimensional ...
R.O. Sherstyukov, A.D. Akchurin, O.N. Sherstyukov   +2 more
openaire   +3 more sources