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Hierarchical deconvolution for incoherent scatter radar data [PDF]

open access: yesAtmospheric Measurement Techniques, 2022
We propose a novel method for deconvolving incoherent scatter radar data to recover accurate reconstructions of backscattered powers. The problem is modelled as a hierarchical noise-perturbed deconvolution problem, where the lower hierarchy consists of ...
S. Ross   +6 more
doaj   +6 more sources

A technique for volumetric incoherent scatter radar analysis [PDF]

open access: yesAnnales Geophysicae, 2023
Volumetric measurements of the ionosphere are important for investigating spatial variations of ionospheric features, like auroral arcs and energy deposition in the ionosphere.
J. Stamm   +3 more
doaj   +4 more sources

History of the Tromsø ionosphere heating facility [PDF]

open access: yesHistory of Geo- and Space Sciences, 2022
We present the historical background of the construction of a major ionospheric heating facility, “Heating”, near Tromsø, Norway, in the 1970s by the Max Planck Institute for Aeronomy; we also detail the facility's subsequent operational history to the ...
M. T. Rietveld   +4 more
doaj   +1 more source

Difference spectrum fitting of the ion–neutral collision frequency from dual-frequency EISCAT measurements [PDF]

open access: yesAtmospheric Measurement Techniques, 2023
The plasma–neutral coupling in the mesosphere–lower thermosphere strongly depends on the ion–neutral collision frequency across that region. Most commonly, the collision frequency profile is calculated from the climatologies of atmospheric models ...
F. Günzkofer   +5 more
doaj   +1 more source

A comparison of EISCAT and Dynasonde measurements of the auroral ionosphere [PDF]

open access: yesAnnales Geophysicae, 1996
Incoherent-scatter radar and ionospheric sounding are powerful and complementary techniques in the study of the Earth's ionosphere. The work presented here involves the use of the Tromsø Dynasonde as a correlative diagnostic with the EISCAT incoherent-
K. J. F. Sedgemore   +3 more
doaj   +1 more source

Irkutsk Incoherent Scatter Radar: history, present and future [PDF]

open access: yesHistory of Geo- and Space Sciences, 2019
The article focuses on the history of ionospheric research using the incoherent scatter method at the Institute of Solar-Terrestrial Physics and development of the only incoherent scatter radar in Russia, which is located near Irkutsk.
A. V. Medvedev, A. P. Potekhin
doaj   +1 more source

Letter to the Editor: A comparison of F-region ion velocity observations from the EISCAT Svalbard and VHF radars with irregularity drift velocity measurements from the CUTLASS Finland HF radar [PDF]

open access: yesAnnales Geophysicae, 2000
During August 1998, the UK EISCAT special programme SP-UK-CSUB, which combines operation of both the mainland VHF and Svalbard UHF incoherent scatter radars, was run for several hours around magnetic midnight on four consecutive days.
J. A. Davies   +5 more
doaj   +1 more source

First EISCAT measurement of electron-gas temperature in the artificially heated D-region ionosphere [PDF]

open access: yesAnnales Geophysicae, 2000
The ionospheric electron gas can be heated artificially by a powerful radio wave. According to our modeling, the maximum effect of this heating occurs in the D-region where the electron temperature can increase by a factor of ten.
A. Kero   +4 more
doaj   +1 more source

Aspect sensitive E- and F-region SPEAR-enhanced incoherent backscatter observed by the EISCAT Svalbard radar [PDF]

open access: yesAnnales Geophysicae, 2009
Previous studies of the aspect sensitivity of heater-enhanced incoherent radar backscatter in the high-latitude ionosphere have demonstrated the directional dependence of incoherent scatter signatures corresponding to artificially excited ...
R. S. Dhillon   +2 more
doaj   +1 more source

A Stimulated Emission Diagnostic Technique for Electron Temperature of the High Power Radio Wave Modified Ionosphere

open access: yesGeophysical Research Letters, 2022
We report observations of stimulated electromagnetic emission (SEE) induced by high power high frequency (HF) radio waves near the third electron gyroharmonic (3fce) at European Incoherent Scatter Radar (EISCAT).
H. Y. Fu   +9 more
doaj   +1 more source

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