Results 21 to 30 of about 7,904 (219)

Precursors Identification for Forecasting UHF‐Band Ionospheric Scintillation Events Over Chinese Low‐Latitude Region by Deep Learning

open access: yesEarth and Space Science, 2022
The occurrences of the UHF‐band ionospheric scintillation events caused by Equatorial Plasma Bubbles (EPBs) in the low‐latitude region depend on many factors.
Hongbo Zhang   +4 more
doaj   +1 more source

Space weather challenges of the polar cap ionosphere [PDF]

open access: yes, 2016
This paper presents research on polar cap ionosphere space weather phenomena conducted during the European Cooperation in Science and Technology (COST) action ES0803 from 2008 to 2012.
Alfonsi, Lucilla   +5 more
core   +4 more sources

ScintPi 2.0 and 3.0: low-cost GNSS-based monitors of ionospheric scintillation and total electron content

open access: yesEarth, Planets and Space, 2022
We have devoted efforts to the development and performance evaluation of new low-cost ionospheric instruments for studies that require distributed observations and for educational and citizen science initiatives.
Josemaria Gomez Socola   +1 more
doaj   +1 more source

Mid-latitude ionospheric scintillation anomaly in the Far East [PDF]

open access: yesAnnales Geophysicae, 2003
A long-term (over 3 years) study has been undertaken to obtain a comprehensive evaluation of VHF ionospheric scintillation morphology in East Asia (at Kokobunji in Japan), using amplitude records from Transit satellites.
L. A. Hajkowicz, H. Minakoshi
doaj   +1 more source

Analysis of Ionospheric Scintillations using Wideband GPS L1 C/A Signal Data [PDF]

open access: yes, 2004
A non-real-time GPS receiver has been developed and tested for use in scintillation analysis. The receiver consists of a digital storage receiver and non-real-time software acquisition and tracking algorithms.
Humphreys, Todd E.   +3 more
core   +1 more source

Imaging ionospheric inhomogeneities using spaceborne synthetic aperture radar [PDF]

open access: yes, 2011
We present a technique and results of 2-D imaging of Faraday rotation and total electron content using spaceborne L band polarimetric synthetic aperture radar (PolSAR).
Chapman, B.   +4 more
core   +2 more sources

VARIATIONS OF IONOSPHERIC SCINTILLATION INDEX FOR THE SHORT-TIME INTERVALS OBSERVED ON THE POWER COSMIC RADIO SOURCES AT THE DECAMETER WAVELENGTHS

open access: yesRadio Physics and Radio Astronomy, 2017
Purpose: Variations of ionospheric scintillation index of the power cosmic radio sources (3С144, 3С274, 3С405, and 3С461) observed for the year-to-day time intervals with the radio telescope at the decameter wavelengths are analyzed.
O. A. Lytvynenko, S. K. Panishko
doaj   +1 more source

Systematic and Stochastic Variations in Pulsar Dispersion Measures [PDF]

open access: yes, 2016
We analyze deterministic and random temporal variations in dispersion measure (DM) from the full three-dimensional velocities of pulsars with respect to the solar system, combined with electron-density variations on a wide range of length scales ...
Armstrong, John W.   +5 more
core   +3 more sources

Broadband Meter-Wavelength Observations of Ionospheric Scintillation

open access: yes, 2015
Intensity scintillations of cosmic radio sources are used to study astrophysical plasmas like the ionosphere, the solar wind, and the interstellar medium. Normally these observations are relatively narrow band. With Low Frequency Array (LOFAR) technology
Brentjens, M.   +24 more
core   +1 more source

Multi-frequency GNSS robust carrier tracking for ionospheric scintillation mitigation

open access: yesJournal of Space Weather and Space Climate, 2017
Ionospheric scintillation is the physical phenomena affecting radio waves propagating from the space through the ionosphere to earth. The signal distortion induced by scintillation can pose a major threat to some GNSS application. Scintillation is one of
Vilà-Valls Jordi   +2 more
doaj   +1 more source

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