Results 31 to 40 of about 7,904 (219)

An interhemispheric comparison of GPS phase scintillation with auroral emission observed at the South Pole and from the DMSP satellite

Annals of Geophysics, 2013
The global positioning system (GPS) phase scintillation caused by high-latitude ionospheric irregularities during an intense high-speed stream (HSS) of the solar wind from April 29 to May 5, 2011, was observed using arrays of GPS ionospheric ...
Paul Prikryl, Yongliang Zhang, Yusuke Ebihara, Reza Ghoddousi-Fard, Periyadan T. Jayachandran, Joe Kinrade, Cathryn N. Mitchell, Allan T. Weatherwax, Gary Bust, Pierre J. Cilliers, Luca Spogli, Lucilla Alfonsi, Vincenzo Romano, Baiqi Ning, Guozhu Li, Martin J. Jarvis, Donald W. Danskin, Emma Spanswick, Eric Donovan, Mike Terkildsen   +19 more
doaj   +1 more source

Scintillation Effects in S-Band Telemetry Link of INPE’s Earth Station in Cuiaba-Brazil [PDF]

Radioengineering, 2021
One of the main earth stations that INPE uses to track and control its satellites is located in the city of Cuiaba (15.33°S, 56.46°W, dip latitude, 6.1°S), between the magnetic equator and the peak of the equatorial anomaly.
A. M. P. de Lucena, F. de A. T. F. da Silva, A. S. da Silva   +2 more
doaj  

AATR an ionospheric activity indicator specifically based on GNSS measurements [PDF]

, 2018
This work reviews an ionospheric activity indicator useful for identifying disturbed periods affecting the performance of Global Navigation Satellite System (GNSS). This index is based in the Along Arc TEC Rate (AATR) and can be easily computed from dual-
González Casado, Guillermo, Ibáñez Segura, Deimos, Juan Zornoza, José Miguel, Orús Pérez, Raul, Rovira Garcia, Adrià, Sanz Subirana, Jaume   +5 more
core   +2 more sources

GPS scintillations and total electron content climatology in the southern low, middle and high latitude regions

Annals of Geophysics, 2013
In recent years, several groups have installed high-frequency sampling receivers in the southern middle and high latitude regions, to monitor ionospheric scintillations and the total electron content (TEC) changes.
Luca Spogli, Lucilla Alfonsi, Pierre J. Cilliers, Emília Correia, Giorgiana De Franceschi, Cathryn N. Mitchell, Vincenzo Romano, Joe Kinrade, Miguel Angel Cabrera   +8 more
doaj   +1 more source

Investigating the Effects of Ionospheric Scintillation on Multi‐Frequency BDS‐2/BDS‐3 Signals at Low Latitudes

Space Weather, 2023
Ionospheric scintillation could seriously disrupt the signal tracking of the global navigation satellite systems (GNSS), further causing positioning accuracy degradation or unavailability.
Hang Liu, Xiaodong Ren, Xiaohong Zhang, Dengkui Mei, Pengxin Yang   +4 more
doaj   +1 more source

Observations and modeling of scintillation in the vicinity of a polar cap patch

Journal of Space Weather and Space Climate, 2022
Small-scale ionospheric plasma structures can cause scintillation in radio signals passing through the ionosphere. The relationship between the scintillated signal and how plasma structuring develops is complex.
Lamarche Leslie J., Deshpande Kshitija B., Zettergren Matthew D.   +2 more
doaj   +1 more source

Wide-field LOFAR-LBA power-spectra analyses: Impact of calibration, polarization leakage and ionosphere [PDF]

, 2018
Contamination due to foregrounds (Galactic and Extra-galactic), calibration errors and ionospheric effects pose major challenges in detection of the cosmic 21 cm signal in various Epoch of Reionization (EoR) experiments. We present the results of a pilot
Asad, K. M. B., Brentjens, M. A., de Bruyn, A. G., Gehlot, B. K., Hatef, M., Jelic, V., Koopmans, L. V. E., Mevius, M., Offringa, A. R., Pandey, V. N., Yatawatta, S., Zaroubi, S.   +11 more
core   +4 more sources

Real-time national GPS networks: Opportunities for atmospheric sensing [PDF]

, 2000
Real-time national Global Positioning System (GPS) networks are being established in a number of countries for atmospheric sensing. UCAR, in collaboration with participating universities, is developing one of these networks in the United States.
Anderson, DN, Avery, SK, Clark, RD, Droegemeier, KK, Fulker, DW, Kuettner, JP, Minster, J, Sorooshian, S, Stein, SA, Ware, RH   +9 more
core   +2 more sources

The Prediction of Day‐to‐Day Occurrence of Low Latitude Ionospheric Strong Scintillation Using Gradient Boosting Algorithm

Space Weather, 2021
Ionospheric scintillations caused by equatorial plasma bubbles (EPBs) can seriously affect various high technology systems based on Global Navigation Satellite System (GNSS) signals at equatorial and low latitudes.
Xiukuan Zhao, Guozhu Li, Haiyong Xie, Lianhuan Hu, Wenjie Sun, Sipeng Yang, Yi Li, Baiqi Ning, Hisao Takahashi   +8 more
doaj   +1 more source

Relatively Intense Daytime GNSS Amplitude Scintillations at Middle Latitude Linked With Multi‐Layered Strong Es Structures

Geophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Intense Global Navigation Satellite System (GNSS) amplitude scintillations usually occur in nighttime at low latitudes due to ionospheric plasma bubble irregularities. During daytime at middle latitudes, previous studies found that the sporadic E (Es) layer could lead to GNSS amplitude scintillations, which however, is relatively weak, for ...
Wenjie Sun, Yuichi Otsuka, Guozhu Li, Zhe Yang, Yuanfa Ji, Wenbin Liang, Renjin Zhang, Xiukuan Zhao, Lianhuan Hu, Biqiang Zhao, Jianfei Liu, Guofeng Dai, Yi Li, Haiyong Xie, Baiqi Ning   +14 more
wiley   +1 more source