Results 1 to 10 of about 376 (140)

Resolving the generation mechanisms and electrodynamical effects of Medium Scale Traveling Ionospheric Disturbances (MSTIDs)

Frontiers in Astronomy and Space Sciences
The term “Medium-Scale Traveling Ionospheric Disturbances” is used to describe a number of different propagating phenomena in ionospheric plasma density with a scale size of hundreds of km.
Jeff Klenzing, Kate Zawdie, Elvira Astafyeva, Anna Belehaki, Meghan Burleigh, Angeline G. Burrell, Cosme A. O. B. Figueiredo, Nathaniel A. Frissell, Weizheng Fu, Dustin Hickey, Joe Huba, Pavel Inchin, Stephen R. Kaeppler, Viswanathan Lakshmi Narayanan, Mani Sivankandan, Jonathon M. Smith, Jonathon M. Smith, Chao Xiong, Tatsuhiro Yokoyama, Matt Zettergren, Shun-Rong Zhang   +20 more
exaly   +3 more sources

Inferring neutral winds in the ionospheric transition region from atmospheric-gravity-wave traveling-ionospheric-disturbance (AGW-TID) observations with the EISCAT VHF radar and the Nordic Meteor Radar Cluster [PDF]

Annales Geophysicae, 2023
Atmospheric gravity waves and traveling ionospheric disturbances can be observed in the neutral atmosphere and the ionosphere at a wide range of spatial and temporal scales.
F. Günzkofer, D. Pokhotelov, G. Stober, I. Mann, S. L. Vadas, E. Becker, A. Tjulin, A. Kozlovsky, M. Tsutsumi, M. Tsutsumi, N. Gulbrandsen, S. Nozawa, M. Lester, E. Belova, J. Kero, N. J. Mitchell, N. J. Mitchell, C. Borries   +17 more
doaj   +1 more source

Parameters of traveling ionospheric disturbances: results from spaced oblique HF sounding

Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2022
Urgency. A characteristic feature of the ionospheric radio channel is that its parameters depend on season, local time, solar activity, geographic coordinates, the state of the sun, the state of atmospheric-space weather, etc. The state of the atmosphere
L. F. Chernogor, K. P. Garmash, Q. Guo, Y. H. Zhdanko, V. F. Pushin, A. M. Tsymbal, Yu. Zheng   +6 more
doaj   +1 more source

Periodic oscillations of Doppler frequency excited by the traveling ionospheric disturbances associated with the Tonga eruption in 2022

Earth, Planets and Space, 2023
The explosive eruption of the Hunga Tonga-Hunga Ha’apai volcano on 15 January 2022 generated atmospheric waves traveling around the Earth, which caused ionospheric disturbances on various spatio-temporal scales.
Hiroyuki Nakata, Keisuke Hosokawa, Susumu Saito, Yuichi Otsuka, Ichoro Tomizawa   +4 more
doaj   +1 more source

Electromagnetic conjugacy of ionospheric disturbances after the 2022 Hunga Tonga-Hunga Ha’apai volcanic eruption as seen in GNSS-TEC and SuperDARN Hokkaido pair of radars observations

Earth, Planets and Space, 2022
To elucidate the characteristics of electromagnetic conjugacy of traveling ionospheric disturbances just after the 15 January 2022 Hunga Tonga-Hunga Ha’apai volcanic eruption, we analyze Global Navigation Satellite System-total electron content data and ...
Atsuki Shinbori, Yuichi Otsuka, Takuya Sori, Michi Nishioka, Septi Perwitasari, Takuo Tsuda, Nozomu Nishitani   +6 more
doaj   +1 more source

Traveling Ionospheric Disturbances Characteristics during the 2018 Typhoon Maria from GPS Observations

Remote Sensing, 2020
Typhoons often occur and may cause huge loss of life and damage of infrastructures, but they are still difficult to precisely monitor and predict by traditional in-situ measurements.
Yiduo Wen, Shuanggen Jin
doaj   +1 more source

Topside signature of medium-scale traveling ionospheric disturbances [PDF]

Annales Geophysicae, 2014
Plasma blobs, localized plasma density enhancements that occur singularly or in periodic groups, have been observed by in situ sensors in the lower- and middle-latitude nighttime ionosphere.
E. S. Miller, H. Kil, J. J. Makela, R. A. Heelis, E. R. Talaat, E. R. Talaat, A. Gross   +6 more
doaj   +1 more source

The Ionospheric Dynamics of the African Sector Responding to a Severe Geomagnetic Storm; the Storm of 3–5 November 2021

Space Weather, 2023
The sudden storm commencement (SSC) of 3 November 2021, a severe storm was detected through disturbances in magnetospheric and ring current systems at around 1942 UT.
Wellen Rukundo
doaj   +1 more source

Estimation of the parameters of traveling ionospheric disturbances using a chirp-ionosondes network

Учёные записки Казанского университета: Серия Физико-математические науки, 2022
In this article, the results of our observations of traveling ionospheric disturbances are discussed using the data from a network of chirp stations for oblique ionospheric sounding in December 2019. All observations were made with the same type of chirp
A.A. Kolchev, E.Yu. Zykov, F.I. Vybornov, A.G. Chernov, V.V. Shumaev   +4 more
doaj   +1 more source

Identification of Large-Scale Travelling Ionospheric Disturbances (LSTIDs) Based on Digisonde Observations

Atmosphere, 2023
In this paper we analyze Digisonde observations obtained in the European region to specify the effects of large-scale travelling ionospheric disturbances (LSTIDs) on the ionospheric characteristics that define the conditions in the bottomside ionosphere.
Ioanna Tsagouri, Anna Belehaki, Konstantinos Koutroumbas, Konstantinos Tziotziou, Themistocles Herekakis   +4 more
doaj   +1 more source