scholarly journals Optical ring formation and ionization production in high-power HF heating experiments at HAARP

2009 ◽  
Vol 36 (18) ◽  
Author(s):  
T. Pedersen ◽  
B. Gustavsson ◽  
E. Mishin ◽  
E. MacKenzie ◽  
H. C. Carlson ◽  
...  
Keyword(s):  
High Power ◽  
Ring Formation ◽  
Hf Heating ◽  
Optical Ring

scholarly journals A coupled ionosphere-raytrace model for high-power HF heating

2015 ◽  
Vol 42 (22) ◽  
pp. 9650-9656 ◽  
Author(s):  
K. A. Zawdie ◽  
J. D. Huba ◽  
D. P. Drob ◽  
P. A. Bernhardt
Keyword(s):  
High Power ◽  
Hf Heating

Numerical modeling of artificial ionospheric layers driven by high-power HF heating

2012 ◽  
Vol 117 (A10) ◽  
pp. n/a-n/a ◽  
Author(s):  
B. Eliasson ◽  
X. Shao ◽  
G. Milikh ◽  
E. V. Mishin ◽  
K. Papadopoulos
Keyword(s):  
Numerical Modeling ◽  
High Power ◽  
Hf Heating

scholarly journals Incidence angle dependence of Langmuir turbulence and artificial ionospheric layers driven by high-power HF-heating

2014 ◽  
Vol 81 (2) ◽  
Author(s):  
B. Eliasson ◽  
G. Milikh ◽  
X. Shao ◽  
E. V. Mishin ◽  
K. Papadopoulos
Keyword(s):  
High Power ◽  
Incidence Angle ◽  
Beam Width ◽  
Electron Acceleration ◽  
Langmuir Turbulence ◽  
Ionospheric Heating ◽  
Turbulent Layer ◽  
Neutral Gas ◽  
Radio Transmitters ◽  
Hf Heating

We have numerically investigated the development of strong Langmuir turbulence (SLT) and associated electron acceleration at different angles of incidence of ordinary (O) mode pump waves. For angles of incidence within the Spitze cone, the turbulence initially develops within the first maximum of the Airy pattern near the plasma resonance altitude. After a few milliseconds, the turbulent layer shifts downwards by about 1 km. For injections outside the Spitze region, the turning point of the pump wave is at lower altitudes. Yet, an Airy-like pattern forms here, and the turbulence development is quite similar to that for injections within the Spitze. SLT leads to the acceleration of 10–20 eV electrons that ionize the neutral gas thereby creating artificial ionospheric layers. Our numerical modeling shows that most efficient electron acceleration and ionization occur at angles between the magnetic and geographic zenith, where SLT dominates over weak turbulence. Possible effects of the focusing of the electromagnetic beam on magnetic field-aligned density irregularities and the finite heating beam width at the magnetic zenith are also discussed. The results have relevance to ionospheric heating experiments using ground-based, high-power radio transmitters to heat the overhead plasma, where recent observations of artificial ionization layers have been made.

Coordinated study of subkilometer and 3-m irregularities in theFregion generated by high-power HF heating at Arecibo

1983 ◽  
Vol 88 (A11) ◽  
pp. 9217-9225 ◽  
Author(s):  
Santimay Basu ◽  
Sunanda Basu ◽  
S. Ganguly ◽  
W. E. Gordon
Keyword(s):  
High Power ◽  
Hf Heating

scholarly journals F2-region atmospheric gravity waves due to high-power HF heating and subauroral polarization streams

2012 ◽  
Vol 39 (11) ◽  
pp. n/a-n/a ◽  
Author(s):  
E. Mishin ◽  
E. Sutton ◽  
G. Milikh ◽  
I. Galkin ◽  
C. Roth ◽  
...  
Keyword(s):  
Gravity Waves ◽  
High Power ◽  
Atmospheric Gravity Waves ◽  
Hf Heating ◽  
Atmospheric Gravity

Aperiodic large-scale disturbances in the ionospheric E region stimulated by high-power HF heating

2012 ◽  
Vol 55 (3) ◽  
pp. 156-167 ◽  
Author(s):  
L. F. Chernogor ◽  
I. F. Domnin ◽  
S. V. Panasenko ◽  
V. P. Uryadov
Keyword(s):  
High Power ◽  
Large Scale ◽  
E Region ◽  
Hf Heating
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