Results 21 to 30 of about 1,334 (170)

Combining Swarm Langmuir probe observations, LEO-POD-based and ground-based GNSS receivers and ionosondes for prompt detection of ionospheric earthquake and tsunami signatures: case study of 2015 Chile-Illapel event

Journal of Space Weather and Space Climate, 2021
The study investigates ionospheric electric field responses to the earthquake (EQ) of magnitude 8.3, and the related seismic activity and tsunami triggered by the mainshock in Chile-Illapel region, at 22:54 UTC, in the evening of September 16, 2015.
Jarmołowski Wojciech, Belehaki Anna, Hernández Pajares Manuel, Schmidt Michael, Goss Andreas, Wielgosz Paweł, Yang Heng, Krypiak-Gregorczyk Anna, Tsagouri Ioanna, Paouris Evangelos, Monte-Moreno Enric, García-Rigo Alberto, Milanowska Beata, Erdogan Eren, Graffigna Victoria, Haagmans Roger   +15 more
doaj   +1 more source

The FengYun-3C radio occultation sounder GNOS: a review of the mission and its early results and science applications [PDF]

Atmospheric Measurement Techniques, 2018
The Global Navigation Satellite System (GNSS) Occultation Sounder (GNOS) is one of the new-generation payloads on board the Chinese FengYun 3 (FY-3) series of operational meteorological satellites for sounding the Earth's neutral atmosphere and ...
Y. Sun, Y. Sun, Y. Sun, W. Bai, W. Bai, W. Bai, C. Liu, C. Liu, Y. Liu, Q. Du, Q. Du, Q. Du, X. Wang, X. Wang, G. Yang, M. Liao, Z. Yang, X. Zhang, X. Meng, X. Meng, D. Zhao, D. Zhao, J. Xia, J. Xia, Y. Cai, Y. Cai, G. Kirchengast, G. Kirchengast, G. Kirchengast   +28 more
doaj   +1 more source

Solar Flare Effects Observed over Mexico during 30–31 March 2022

Remote Sensing, 2023
Manifestations of two solar flares of March 2022 were studied over Mexico. The flare effects in the lower ionosphere had a ~3 min delay from the X1.3-flare onset and ~5 min from the M9.6-flare onset. The maximal impact on the HF signal amplitude was ~(14–
Maria A. Sergeeva, Olga A. Maltseva, Artem M. Vesnin, Donat V. Blagoveshchensky, Victor J. Gatica-Acevedo, J. Americo Gonzalez-Esparza, Aleksandr G. Chernov, Isaac D. Orrala-Legorreta, Angela Melgarejo-Morales, Luis Xavier Gonzalez, Mario Rodriguez-Martinez, Ernesto Aguilar-Rodriguez, Ernesto Andrade-Mascote, Pablo Villanueva   +13 more
doaj   +1 more source

Investigation of Ionospheric Response to June 2009 Sarychev Peak Volcano Eruption

Remote Sensing, 2021
Global Navigation Satellite Systems have been extensively used to investigate the ionosphere response to various natural and man-made phenomena for the last three decades. However, ionospheric reaction to volcano eruptions is still insufficiently studied
Nikolay Shestakov, Alexander Orlyakovskiy, Natalia Perevalova, Nikolay Titkov, Danila Chebrov, Mako Ohzono, Hiroaki Takahashi   +6 more
doaj   +1 more source

Features of ionospheric effects from the partial solar eclipse of October 25, 2022, near the evening terminator

Вісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2023
Urgency. The ionosphere remains the main channel used by radar, radio astronomy, radio navigation, communication links, and remote radio sounding. The parameters of this channel significantly depend on the influence of high-energy sources that take place
L. F. Chernogor, V. L Dorokhov, Y. H. Zhdanko, Yu. B. Mylovanov, A. M. Tsymbal   +4 more
doaj   +1 more source

Preliminary validation of the refractivity from the new radio occultation sounder GNOS/FY-3C [PDF]

Atmospheric Measurement Techniques, 2016
As a new member of the space-based radio occultation sounders, the GNOS (Global Navigation Satellite System Occultation Sounder) mounted on Fengyun-3C (FY-3C) has been carrying out atmospheric sounding since 23 September 2013.
M. Liao, P. Zhang, G.-L. Yang, Y.-M. Bi, Y. Liu, W.-H. Bai, X.-G. Meng, Q.-F. Du, Y.-Q. Sun   +8 more
doaj   +1 more source

Ionospheric tilting of 21 August 2017 total solar eclipse sounded by GNSS ground-based receivers and radio occultation

Terrestrial, Atmospheric and Oceanic Sciences, 2021
A total solar eclipse passed over the continental United States from the west to the east coast on 21 August 2017. Measurements made by more than 2200 groundbased GNSS (Global Navigation Satellite System) receivers observed a significant decrease in ionospheric total electron content (TEC).
Chi-Yen Lin, Jann-Yenq Liu, Yang-Yi Sun, Charles Chien-Hung Lin, Loren C. Chang, Chao-Yen Chen, Chia-Hung Chen   +6 more
openaire   +3 more sources

The CUSPED Mission: CUbeSat for GNSS Sounding of the Ionosphere-Plasmasphere Electron Density [PDF]

54th AIAA Aerospace Sciences Meeting, 2016
The CubeSat for GNSS Sounding of Ionosphere-Plasmasphere Electron Density (CuSPED) is a 3U CubeSat mission concept that has been developed in response to the NASA Heliophysics program's decadal science goal of the determining of the dynamics and coupling of the Earth's magnetosphere, ionosphere, and atmosphere and their response to solar and ...
Jason N. Gross, Amy Keesee, John A. Christian, Yu Gu, Earl Scime, Attila Komjathy, E. Glenn Lightsey, Craig Pollock   +7 more
openaire   +1 more source

Evaluation of E Layer Dominated Ionosphere Events Using COSMIC/FORMOSAT-3 and CHAMP Ionospheric Radio Occultation Data [PDF]

, 2020
At certain geographic locations, especially in the polar regions, the ionization of the ionospheric E layer can dominate over that of the F2 layer. The associated electron density profiles show their ionization maximum at E layer heights between 80 and ...
Hoque, Mohammed M., Jakowski, Norbert, Kamal, Sumon, Wickert, Jens   +3 more
core   +2 more sources

Study of Ionospheric Bending Angle and Scintillation Profiles Derived by GNSS Radio-Occultation with MetOp-A Satellite

Remote Sensing, 2023
In this work, a dedicated campaign by MetOp-A satellite is conducted to monitor the ionosphere based on radio-occultation (RO) measurements provided by the onboard GNSS (Global Navigation Satellite System) Receiver for Atmospheric Sounding (GRAS).
Fabricio S. Prol, M. Mainul Hoque, Manuel Hernández-Pajares, Liangliang Yuan, Germán Olivares-Pulido, Axel von Engeln, Christian Marquardt, Riccardo Notarpietro   +7 more
doaj   +1 more source