Results 71 to 80 of about 449 (162)

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.
H. Takahashi, C. M. Wrasse, C. A. O. B. Figueiredo, D. Barros, I. Paulino, P. Essien, M. A. Abdu, Y. Otsuka, K. Shiokawa   +8 more
openaire   +2 more sources

First LiDAR Observation of Quasi‐Periodic Structures in Mid‐Latitude E‐Region Meteoric Ca+ Layers

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract We report the first LiDAR observations of continuous quasi‐periodic (QP) metal density structures in mid‐latitude E‐region meteoric Ca+ layers using an all‐solid‐state LiDAR system in Beijing (40.4°N, 116.0°E). These QP Ca+ structures, with periods of 2–30 min and vertical wavelengths of ∼2–15 km, were primarily observed above 100 km.
Jixin Guo, Tao Yu, Lifang Du, Jin Wang, Xiangxiang Yan, Yan Yu, Wenyu Hao, Yifan Qi, Haoran Zheng, Guotao Yang   +9 more
wiley   +1 more source

The problem of selection the satellite-receiver lines-of-sight in the practice of the ionosphere GNSS-sensing for weak MSTIDs observing

, 2019
© 2019 IEEE. The paper deals with the problems of the mid-latitude MSTIDs detection with low intensity of electron density, ΔN/N, using the GNSS transionospheric sounding method. To collect data, a dense network of GNSS receivers located on the territory
Ruslan Sherstyukov, Adel Akchurin, Oleg Sherstyukov, Sherstyukov R., Akchurin A., Sherstyukov O.   +5 more
core   +1 more source

Northward-propagating nighttime medium-scale traveling ionospheric disturbances observed with SuperDARN Hokkaido HF radar and GEONET [PDF]

, 2013
We report on the characteristics of nighttime medium-scale traveling ionospheric disturbances (MSTIDs) propagating northward observed with the SuperDARN Hokkaido HF radar, which has a field of view to the north of Japan, and occasionally with the GNSS ...
Ichihara, Akimitsu, Nishitani, Nozomu, Ogawa, Tadahiko, Tsugawa, Takuya   +3 more
core   +1 more source

Global GNSS Observation of Mesoscale Ionospheric Irregularities (2006–2024)

Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.
Abstract Mesoscale ionospheric irregularities are statistically investigated using an unprecedented 19‐year long‐term global GNSS (Global Navigation Satellite System) TEC (total electron content) data set. These irregularities are represented by ionospheric fluctuations within a 5°× ${}^{\circ}\times $ 3.75° ${}^{\circ}$ (latitude by longitude) region ...
Shun‐Rong Zhang, Jing Liu, Anthea J. Coster, Sevag Derghazarian, Philip J. Erickson, Larisa P. Goncharenko, Nestor Aponte, William Rideout   +7 more
wiley   +1 more source

Properties of Medium-Scale Traveling Ionospheric Disturbances Observed over Mexico during Quiet Solar Activity

Atmosphere
We present a statistical study of some physical properties of medium-scale traveling ionospheric disturbances (MSTIDs) registered over the Mexican territory during 2018 and 2019 (solar minimum).
Esmeralda Romero-Hernandez, Federico Salinas-Samaniego, Olusegun F. Jonah, Ernesto Aguilar-Rodriguez, Mario Rodriguez-Martinez, Giorgio Arlan da Silva Picanço, Clezio M. Denardini, Carlos Alberto Guerrero-Peña, Rogelio Aguirre-Gutierrez, Flor Araceli Garcia-Castillo, Sandra Ayala, Eduardo Perez-Tijerina, Maria A. Sergeeva, Juan Americo Gonzalez-Esparza   +13 more
doaj   +1 more source

Interrelation of traveling ionospheric disturbances above and below the F-layer peak according to the ionosonde and the SWARM constellation data

Учёные записки Казанского университета: Серия Физико-математические науки, 2019
One approach to determining the height structure of the mid-latitude medium-scale travelling ionospheric disturbances (MSTIDs) above the F layer peak is to involve simultaneous satellite measurements in the ground-based ionosonde measurements near Kazan.
A.D. Akchurin, G.S. Smirnov
doaj   +1 more source

Climatology of Ionospheric Variability with MSTID Periods Observed Using Grape V1 HF Doppler Receivers

, 2023
Medium-Scale Traveling Ionospheric Disturbances (MSTIDs) are quasi-periodic variations of ionospheric electron density that are often associated with Atmospheric Gravity Waves (AGWs).
Romanek, Veronica
core   +1 more source

Evaluation of Oblique and Fork Traces in Ionograms as Indicators of MSTIDs and Their Relationship to the Development of Spread-F at European Mid-Latitudes

Atmosphere
Oblique and Fork-shaped traces in ionosonde’s ionograms have been identified as manifestations of nighttime and daytime Medium-Scale Traveling Ionospheric Disturbances (MSTIDs), respectively.
Krishnendu Sekhar Paul, David Altadill, Ankitha Nandakumar, Haris Haralambous, Tobias G. W. Verhulst, Tiju J. Mathew   +5 more
doaj   +1 more source

Traveling Ionospheric Disturbances in the Vicinity of Storm-Enhanced Density at Midlatitudes. [PDF]

J Geophys Res Space Phys, 2022
Zhang SR, Nishimura Y, Erickson PJ, Aa E, Kil H, Deng Y, Thomas EG, Rideout W, Coster AJ, Kerr R, Kerr R, Vierinen J.   +11 more
europepmc   +1 more source