R. C. Moore, S. Fujimaru, D. A. Kotovsky, Mark Gołkowski,
... are observed for the first time at the High-Frequency Active Auroral Research Program high-frequency transmitter in Gakona, Alaska. The observed ELF and ...
Tópico(s): Earthquake Detection and Analysis
2013 - American Physical Society | Physical Review Letters
Bengt Eliasson, G. M. Milikh, T. C. Liu, Xi Shao, K. Papadopoulos,
... were discovered during HF heating experiments at the High‐Frequency Active Auroral Research Program where they descended up to 70 km from ... power 4–5 times lower than that at High‐Frequency Active Auroral Research Program, and since the experiment at Arecibo also has ...
Tópico(s): Astro and Planetary Science
2018 - Wiley | Journal of Geophysical Research Space Physics
E. N. Sergeev, Alexey Shindin, С. М. Грач, G. M. Milikh, Е. В. Мишин, P. A. Bernhardt, C. L. Siefring, S. J. Briczinski, M. McCarrick,
... plasma perturbations during HF heating experiments at the High Frequency Active Auroral Research Program facility in March–April 2011 and May–June ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
2016 - Wiley | Radio Science
E. A. Kendall, R. A. Marshall, Richard Parris, Asti Bhatt, A. J. Coster, T. R. Pedersen, P. A. Bernhardt, C. A. Selcher,
... scale rayed artificial airglow was observed at the High frequency Active Auroral Research Program (HAARP) heating facility by the HAARP telescopic imager. ...
Tópico(s): Astro and Planetary Science
2010 - American Geophysical Union | Journal of Geophysical Research Atmospheres
M. J. Kosch, T. R. Pedersen, Е. В. Мишин, M. Starks, E. Gerken‐Kendall, D. D. Sentman, Shin‐ichiro Oyama, B. J. Watkins,
On 4 February 2005 the High‐Frequency Active Auroral Research Program (HAARP) facility was operated at 2.85 MHz to produce artificial optical emissions in the ionosphere while passing through the second ...
Tópico(s): Astro and Planetary Science
2007 - American Geophysical Union | Journal of Geophysical Research Atmospheres
T. R. Pedersen, H. C. Carlson,
... at 630.0 nm were detected at the High Frequency Active Auroral Research Program (HAARP) ionospheric research facility near Gakona, Alaska (62. ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
2001 - Wiley | Radio Science
... HF) heating experiments conducted at Arecibo, EISCAT, and high frequency active auroral research program are discussed. These phenomena appearing in the F region of the ionosphere include high-frequency heater enhanced plasma lines, airglow enhancement, energetic electron ...
Tópico(s): Earthquake Detection and Analysis
2015 - American Institute of Physics | Physics of Plasmas
Nataliya V. Bakhmetieva, С. М. Грач, E. N. Sergeev, Alexey Shindin, G. M. Milikh, C. L. Siefring, P. A. Bernhardt, M. McCarrick,
... periodic irregularities (APIs) in the ionosphere using the High Frequency Active Auroral Research Program (HAARP) heating facility carried out in late May and early June 2014.The objective of this work is to detect API using high‐latitude facility and analyze possible differences of the ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
2016 - Wiley | Radio Science
C. T. Fallen, J. A. Secan, B. J. Watkins,
... 25 February 2008 during an overpass of the High frequency Active Auroral Research Program (HAARP) research station in Alaska where ionosphere modification experiments were being conducted. An upward ion velocity enhancement of 200 m/ ...
Tópico(s): Earthquake Detection and Analysis
2011 - American Geophysical Union | Geophysical Research Letters
L.A. Rooker, M C Lee, Rezy Pradipta, B. J. Watkins,
... difference frequency in the VLF range using the High-frequency Active Auroral Research Program (HAARP) heating facility. A sequence of beat wave-generated whistler waves at 2, 6.5, 7.5, 8.5, 9.5, 11.5, 15.5, 22.5, 28.5 and 40.5 kHz were detected in our 2011 experiments. We present Modular Ultra-high-frequency Ionospheric Radar (MUIR) (446 MHz) measurements of ion ...
Tópico(s): GNSS positioning and interference
2013 - IOP Publishing | Physica Scripta
A. Najmi, G. M. Milikh, J. A. Secan, K. Chiang, Mark L. Psiaki, P. A. Bernhardt, S. J. Briczinski, C. L. Siefring, Chein‐Chi Chang, K. Papadopoulos,
... We present here new experimental results using the High Frequency Active Auroral Research Program ionospheric heater at a frequency close to the fourth electron gyroharmonic with simultaneous GPS, Stimulated Electromagnetic Emission, ionosonde, and occasional Incoherent Radar Scattering diagnostics. Differential phase measurements of GPS signals through the heated region indicated the presence of SSS with extremely high amplitude ( δn / n = 0.2–0.3) at ...
Tópico(s): Solar and Space Plasma Dynamics
2014 - Wiley | Journal of Geophysical Research Space Physics
Augustine Yellu, W. A. Scales, Alireza Mahmoudian, P. A. Bernhardt, C. L. Siefring, M. McCarrick,
... wave frequency during ionospheric heating experiments at the High Frequency Active Auroral Research Program facility. The observations are juxtaposed with contemporaneous NSEEs ...
Tópico(s): Geophysics and Sensor Technology
2018 - American Geophysical Union | Geophysical Research Letters
Poorya Hosseini, Mark Gołkowski, D. L. Turner,
... as ELF/VLF signals generated locally by the High Frequency Active Auroral Research Program (HAARP) facility. Eccentricity of observed wave polarization is ...
Tópico(s): Earthquake Detection and Analysis
2017 - Wiley | Journal of Geophysical Research Space Physics
B. Beaudoin, Gregory S. Nusinovich, G. M. Milikh, A. Ting, Steven H. Gold, Jayakrishnan A. Karakkad, Amith H. Narayan, David Matthew, Dennis Papadopoulos, Thomas M. Antonsen,
... antenna array 1/20 the area of the High-Frequency Active Auroral Research Program (HAARP). To deliver an effective power density comparable ...
Tópico(s): Plasma Diagnostics and Applications
2017 - Taylor & Francis | Journal of Electromagnetic Waves and Applications
Nataliya V. Bakhmetieva, Gennadiy I. Grigoriev,
... USA), High Power Auroral Stimulation Observatory (HIPAS) and High Frequency Active Auroral Research Program (HAARP, Gakona, AK, USA), and European Incoherent Scatter ( ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
2022 - Multidisciplinary Digital Publishing Institute | Atmosphere
... come into play. A system such as HAARP (High-frequency Active Auroral Research Program), as well as directed wave beams (related to ...
Tópico(s): Fusion and Plasma Physics Studies
2020 - Taylor & Francis | Electromagnetic Biology and Medicine
Mark Gołkowski, Vijay Harid, Poorya Hosseini,
... the Siple Station Transmitter in Antarctica and the High Frequency Active Auroral Research Program (HAARP) facility in Alaska. Both facilities were able ...
Tópico(s): Solar and Space Plasma Dynamics
2019 - Frontiers Media | Frontiers in Astronomy and Space Sciences
Alireza Mahmoudian, E. Nossa, B. Isham, P. A. Bernhardt, S. J. Briczinski, M. P. Sulzer,
... studied for the first time at the HAARP (High Frequency Active Auroral Research Program) facility in Alaska (Norin et al., 2009, https:// ...
Tópico(s): Astro and Planetary Science
2019 - Wiley | Journal of Geophysical Research Space Physics
Haiyang Fu, W. A. Scales, P. A. Bernhardt, Y.‐Q. Jin, S. J. Briczinski,
... gyroharmonic heating using a diagnostic approach at the High Frequency Active Auroral Research Program facility. The evolution of SEE polarization and plasma ...
Tópico(s): Lightning and Electromagnetic Phenomena
2018 - American Geophysical Union | Geophysical Research Letters
Alireza Mahmoudian, W. A. Scales, B. J. Watkins, P. A. Bernhardt, B. Isham, O. Vega‐Cancel, J. M. Ruohoniemi,
... paper presents data from two campaigns at the High Frequency Active Auroral Research Program facility (HAARP) in 2011 and 2012. The measurements ...
Tópico(s): Solar and Space Plasma Dynamics
2016 - Elsevier BV | Advances in Space Research
P. A. Bernhardt, C. L. Siefring, S. J. Briczinski, Mike McCarrick, R. Michell,
... antenna array, and agile frequency generation of the High Frequency Active Auroral Research Program (HAARP) facility in Alaska have allowed the production ...
Tópico(s): Underwater Vehicles and Communication Systems
2016 - Wiley | Radio Science
Е. В. Мишин, B. J. Watkins, N. G. Lehtinen, Bengt Eliasson, T. R. Pedersen, С. М. Грач,
... at the European Incoherent Scatter (Tromsø, Norway) and High Frequency Active Auroral Research Program (Gakona, Alaska, USA) facilities. We have summarized the ...
Tópico(s): GNSS positioning and interference
2016 - Wiley | Journal of Geophysical Research Space Physics
A. Vartanyan, G. M. Milikh, Bengt Eliasson, A. Najmi, M. Parrot, K. Papadopoulos,
... were detected by the DEMETER satellite overflying the High Frequency Active Auroral Research Program (HAARP) transmitter during HAARP/BRIOCHE campaigns. The VLF ...
Tópico(s): earthquake and tectonic studies
2016 - Wiley | Radio Science
A. Najmi, G. M. Milikh, Yu. M. Yampolski, A. V. Koloskov, A. A. Sopin, A. V. Zalizovski, P. A. Bernhardt, S. J. Briczinski, C. L. Siefring, K. Chiang, Y. Jade Morton, S. Taylor, Alireza Mahmoudian, W. A. Bristow, M. Ruohoniemi, K. Papadopoulos,
... ionospheric turbulence (AIT) induced by HF heating at High Frequency Active Auroral Research Program (HAARP) using frequencies close to the fourth electron ...
Tópico(s): Geophysics and Gravity Measurements
2015 - Wiley | Journal of Geophysical Research Space Physics
Rezy Pradipta, M. C. Lee, Jérémy Cohen, B. J. Watkins,
... ionospheric disturbances (TID), which were conducted at the High-frequency Active Auroral Research Program facility in Gakona, Alaska. Based on the data ...
Tópico(s): Solar and Space Plasma Dynamics
2015 - Springer Science+Business Media | Earth Moon and Planets
D. L. Hysell, M. McCarrick, C. T. Fallen, Juha Vierinen,
... artificial periodic inhomogeneities have been performed at the High Frequency Active Auroral Research Program (HAARP) facility. Irregularities were created using powerful X ‐ ...
Tópico(s): Astro and Planetary Science
2015 - American Geophysical Union | Geophysical Research Letters
Haiyang Fu, W. A. Scales, P. A. Bernhardt, S. J. Briczinski, M. J. Kosch, A. Senior, M. T. Rietveld, T. K. Yeoman, J. M. Ruohoniemi,
... high-frequency (HF) radio waves are considered. The High Frequency Active Auroral Research Program (HAARP) facility is capable of generating narrowband SEE ...
Tópico(s): Earthquake Detection and Analysis
2015 - Copernicus Publications | Annales Geophysicae
Ashanthi Maxworth, Mark Gołkowski, M. B. Cohen, R. C. Moore, Hamid T. Chorsi, Stephen D. Gedney, Ryan T. Jacobs,
... Modulated ionospheric heating experiments are performed with the High Frequency Active Auroral Research Program facility in Gakona, Alaska, for the purpose of ...
Tópico(s): Seismic Waves and Analysis
2015 - Wiley | Radio Science
D. L. Hysell, Robert Miceli, E. A. Kendall, N. M. Schlatter, R. H. Varney, B. J. Watkins, T. R. Pedersen, P. A. Bernhardt, J. D. Huba,
... were made during an ionospheric modification experiment at High Frequency Active Auroral Research Program on 12 March 2013. Artificial airglow enhancements at ...
Tópico(s): Astro and Planetary Science
2014 - Wiley | Journal of Geophysical Research Space Physics
H. Bahcivan, James Cutler, John Springmann, R. A. Doe, M. J. Nicolls,
... during HF heating of the ionosphere by the High Frequency Active Auroral Research Program heater. In this paper, we present the results ...
Tópico(s): Geomagnetism and Paleomagnetism Studies
2014 - Wiley | Journal of Geophysical Research Space Physics