REMOTE DIAGNOSTICS OF EFFECTS INDUCED BY HIGH-LATITUDE HEATING FACILITIES

2021 ◽  
pp. 22-36
Author(s):  
A. S. Kalishin ◽  
◽  
N. F. Blagoveshchenskaya ◽  
Т. D. Borisova ◽  
D. D. Rogov ◽  
...  
Keyword(s):  
High Latitude ◽  
Diagnostic Methods ◽  
Small Scale ◽  
Radio Waves ◽  
Heating Facility ◽  
Remote Diagnostics ◽  
High Latitude Ionosphere ◽  
Powerful High Frequency ◽  
Excitation Conditions

The results of long-term studies of the effects of the high-latitude ionosphere modification by powerful high-frequency (HF) radio waves generated by the EISCAT/Heating facility based on remote diagnostic methods are presented. The brief description of remote diagnostic instruments and methods is given. The excitation conditions and characteristics of small-scale artificial field-aligned irregularities induced by the O- and X-mode HF pumping are considered using the bi-static scatter method. The results of the spectral analysis of HF heater signals under various radiation modes are provided. It is shown that the X-mode HF pumping induces narrowband artificial radio emission of the ionosphere recorded at a distance of more than 1000 km from the heater.

RUSSIAN HIGH-LATITUDE NETWORK OF OBLIQUE IONOSPHERIC SOUNDING

2021 ◽  
pp. 5-13
Author(s):  
D. D. Rogov ◽  
◽  
V. M. Vystavnoi ◽  
N. F. Blagoveshchenskaya ◽  
P. E. Baryshev ◽  
...  
Keyword(s):  
High Latitude ◽  
Communication Systems ◽  
Arctic Region ◽  
Small Scale ◽  
Radio Waves ◽  
Radio Communication ◽  
Remote Diagnostics ◽  
F Region ◽  
High Latitude Ionosphere ◽  
Ionospheric Sounding

The network for monitoring the high-latitude ionosphere by the method of oblique ionospheric sounding deployed in the Russian Arctic region is considered. The study describes the main results of operational data processing for studying the high-latitude ionosphere and determining the conditions for the optimum operation of radio communication systems and over-the-horizon radars in this region. The study demonstrates the potential of the network as a tool for the remote diagnostics of parameters of small-scale artificial ionospheric irregularities induced by powerful HF radio waves in the mid-latitude ionospheric F-region.

The Multifractal Structure of Small-Scale Artificial Ionospheric Turbulence

2013 ◽  
Vol 22 (1) ◽  
Author(s):  
F. I. Vybornov ◽  
A. V. Rakhlin
Keyword(s):  
Experimental Studies ◽  
Multifractal Spectrum ◽  
Small Scale ◽  
Radio Waves ◽  
Ionospheric Turbulence ◽  
Heating Facility ◽  
Artificial Ionospheric Turbulence ◽  
Radio Sounding ◽  
Scale Turbulence ◽  
Disturbed Ionosphere

AbstractWe present the results of investigation of a multifractal structure of the artificial ionospheric turbulence when the midlatitude ionosphere is affected by high-power radio waves. The experimental studies were performed on the basis of the SURA heating facility with the help of radio sounding of the disturbed region of ionospheric plasma by signals from the Earth’s orbital satellities. In the case of vertical radio sounding of the disturbed ionosphere region, the measured multipower and generalized multifractal spectra of turbulence coincide well with similar multifractal characteristics of the ionosperic turbulence under the natural conditions. In the case of oblique sounding of the disturbance region at small angles between the line of sight to the satellite and the direction of the Earth’s magnetic field, a nonuniform structure of the small-scale turbulence with a relatively narrow multipower spectrum and small variations in the generalized multifractal spectrum of the electron density was detected.

Investigation of Total Absorption of Radio Waves in High Latitude Ionosphere

2014 ◽  
Vol 16 (9) ◽  
pp. 833-836
Author(s):  
Jiankui Shi ◽  
Zheng Wang ◽  
Wei Tao ◽  
G. A. Zherebtsov ◽  
E. B. Romanova ◽  
...  
Keyword(s):  
High Latitude ◽  
Total Absorption ◽  
Radio Waves ◽  
High Latitude Ionosphere

Long term trend in the high latitude ionosphere

2001 ◽  
Vol 26 (5) ◽  
pp. 303-307
Author(s):  
L. Alfonsi ◽  
G. De Franceschi ◽  
L. Perrone
Keyword(s):  
High Latitude ◽  
Term Trend ◽  
High Latitude Ionosphere ◽  
Long Term Trend

Production and control of ion-cyclotron instabilities in the high latitude ionosphere by high power radio waves

1987 ◽  
Vol 49 (1) ◽  
pp. 57-62 ◽  
Author(s):  
P.K. Chaturvedi ◽  
M.J. Keskinen ◽  
S.L. Ossakow
Keyword(s):  
High Power ◽  
High Latitude ◽  
Radio Waves ◽  
Ion Cyclotron ◽  
High Latitude Ionosphere ◽  
And Control

scholarly journals Modification of the high latitude ionosphere F region by X-mode powerful HF radio waves: Experimental results from multi-instrument diagnostics

2015 ◽  
Vol 135 ◽  
pp. 50-63 ◽  
Author(s):  
N.F. Blagoveshchenskaya ◽  
T.D. Borisova ◽  
T.K. Yeoman ◽  
I. Häggström ◽  
A.S. Kalishin
Keyword(s):  
High Latitude ◽  
Experimental Results ◽  
Radio Waves ◽  
F Region ◽  
High Latitude Ionosphere

The SWILM approach for regional long-term modelling of middle/high latitude ionosphere

2000 ◽  
Vol 25 (4) ◽  
pp. 343-346 ◽  
Author(s):  
G De Franceschi ◽  
L Perrone ◽  
B Zolesi ◽  
S Pau
Keyword(s):  
High Latitude ◽  
High Latitude Ionosphere

An HF phased-array radar for studying small-scale structure in the high-latitude ionosphere

Radio Science ◽  
1985 ◽  
Vol 20 (1) ◽  
pp. 63-79 ◽  
Author(s):  
R. A. Greenwald ◽  
K. B. Baker ◽  
R. A. Hutchins ◽  
C. Hanuise
Keyword(s):  
High Latitude ◽  
Phased Array ◽  
Scale Structure ◽  
Small Scale ◽  
Small Scale Structure ◽  
Phased Array Radar ◽  
High Latitude Ionosphere

scholarly journals Modulation of sporadic E layers by small-scale atmospheric waves in Earth’s high-latitude ionosphere

2019 ◽  
Vol 5 (3) ◽  
pp. 116-129
Author(s):  
Владимир Губенко ◽  
Vladimir Gubenko ◽  
Иван Кириллович ◽  
Ivan Kirillovich
Keyword(s):  
High Latitude ◽  
Radio Occultation ◽  
Small Scale ◽  
Polar Cap ◽  
Atmospheric Waves ◽  
Sporadic E Layers ◽  
High Latitude Ionosphere ◽  
Sporadic E Layer ◽  
Sporadic E ◽  
Good Agreement

We have used radio occultation measurements of the satellite CHAMP (Challenging Minisatellite Payload) to examine sporadic E layers (altitudes 90–130 km) in Earth’s high-latitude ionosphere. We have developed a new method for determining characteristics of internal atmospheric waves based on the use of inclined sporadic E layers of Earth’s ionosphere as a detector. The method relies on the fact that an internal wave propagating through the initially horizontal sporadic E layer causes the plasma density gradient to rotate in the direction of the wave vector, which leads to the fact that the layer ionization plane is set parallel to the phase wave front. The developed method enables us to study the interrelations between small-scale internal waves and sporadic E layers in Earth’s ionosphere and significantly expands the capabilities of traditional radio occultation monitoring of the atmosphere. We have found that the internal atmospheric waves under study have periods from 35 to 46 min and vertical phase speeds from 1.2 to 2.0 m/s, which are in good agreement with the results of independent experiments and simulation data on sporadic E layers at a height of ~100 km in Earth’s polar cap.

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