Results 1 to 10 of about 197,209 (216)

Leveraging the CYGNSS Spaceborne GNSS‐R Observations to Detect Ionospheric Irregularities Over the Oceans: Method and Verification

Space Weather, 2022
The Global Navigation Satellite System (GNSS) has significantly facilitated the detection of ionospheric irregularities. Nevertheless, the ground‐based GNSS stations are inhomogeneously distributed around the world with large gaps, especially in the vast
Xiaodong Ren, Hang Liu, Dengkui Mei, Pengxin Yang, Zhiyu Zhang, Mohamed Freeshah, Xiaohong Zhang   +6 more
doaj   +2 more sources

Characterization of multi-scale ionospheric irregularities using ground-based and space-based GNSS observations

Satellite Navigation, 2021
Ionospheric irregularities can adversely affect the performance of Global Navigation Satellite System (GNSS). However, this opens the possibility of using GNSS as an effective ionospheric remote sensing tool.
YuXiang Peng, Wayne A Scales, Michael D Hartinger, Zhonghua Xu, Shane Coyle   +4 more
doaj   +2 more sources

The Relationship Between Upward Propagating Atmospheric Gravity Waves and Ionospheric Irregularities During Solar Minimum Periods

Space Weather, 2021
We present a study on the relationship between upward propagating gravity waves and ionospheric irregularities. Gravity waves (GWs) are identified from Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) satellite temperature measurements ...
Ephrem B. Seba, Melessew Nigussie, Nigussie M. Giday, Mark B. Moldwin   +3 more
doaj   +2 more sources

Development of the Storm‐Induced Ionospheric Irregularities at Equatorial and Middle Latitudes During the 25–26 August 2018 Geomagnetic Storm

Space Weather, 2022
Can geomagnetic storms during low solar activity trigger formation of extreme equatorial plasma bubbles (EPBs) that affect low and midlatitudes? We analyzed the ionospheric response to the 25–26 August 2018 geomagnetic storm and revealed formation of ...
Iurii Cherniak, Irina Zakharenkova
doaj   +2 more sources

Analyzing the Ionospheric Irregularities Caused by the September 2017 Geomagnetic Storm Using Ground-Based GNSS, Swarm, and FORMOSAT-3/COSMIC Data near the Equatorial Ionization Anomaly in East Africa

Remote Sensing, 2023
Geomagnetic storms are one of the leading causes of ionospheric irregularities, depending on their intensity. The 6–10 September 2017 geomagnetic storm, the most severe geomagnetic event of the year, resulted from an X9 solar flare and a subsequent ...
Alireza Atabati, Iraj Jazireeyan, Mahdi Alizadeh, Mahmood Pirooznia, Jakob Flury, Harald Schuh, Benedikt Soja   +6 more
doaj   +2 more sources

Review of ionospheric irregularities and ionospheric electrodynamic coupling in the middle latitude region

Earth and Planetary Physics, 2021
This paper briefly reviews ionospheric irregularities that occur in the E and F regions at mid-latitudes. Sporadic E (ES) is a common ionospheric irregularity phenomenon that is first noticed in the E layer.
Yi Liu, Chen Zhou, Tong Xu, Qiong Tang, ZhongXin Deng, GuanYi Chen, ZhuangKai Wang   +6 more
doaj   +2 more sources

Ground-Based GNSS and Satellite Observations of Auroral Ionospheric Irregularities during Geomagnetic Disturbances in August 2018 [PDF]

Sensors, 2021
The 25–26 August 2018 space weather event occurred during the solar minimum period and surprisingly became the third largest geomagnetic storm of the entire 24th solar cycle.
Irina Zakharenkova, Iurii Cherniak, Andrzej Krankowski   +2 more
doaj   +2 more sources

The ionospheric irregularities climatology over Svalbard from solar cycle 23. [PDF]

Sci Rep, 2019
The paper presents an unprecedented description of the climatology of ionospheric irregularities over the Arctic derived from the longest Global Navigation Satellite Systems data series ever collected for this specific aim.
De Franceschi G, Spogli L, Alfonsi L, Romano V, Cesaroni C, Hunstad I.   +5 more
europepmc   +2 more sources

Investigation of the Occurrence of Nighttime Topside Ionospheric Irregularities in Low-Latitude and Equatorial Regions Using CYGNSS Satellites [PDF]

Sensors, 2020
By using multi-satellite observations of the L1 signal-to-noise ratio (SNR) from the Cyclone Global Navigation Satellite System (CYGNSS) taken in 2017, we present the occurrence of nighttime topside ionospheric irregularities in low-latitude and ...
Liang Huang, Yi Liu, Qiong Tang, Guanyi Chen, Zhuangkai Wang, Chen Zhou   +5 more
doaj   +2 more sources

Numerical simulation of the propagation of electromagnetic waves in ionospheric irregularities

Earth and Planetary Physics, 2020
The characteristics of high-frequency (HF) electromagnetic (EM) wave propagation can be affected when EM waves propagate in the ionosphere. When ionospheric irregularities appear in the ionosphere, they can have a serious impact on the propagation of HF ...
ChunHua Jiang, LeHui Wei, GuoBin Yang, Chen Zhou, ZhengYu Zhao   +4 more
doaj   +2 more sources