Výsledky vyhledávání - "Christopher T. Fallen"

Lower thermospheric wind variations in auroral patches during the substorm recovery phase

Autor: Keisuke Hosokawa, Takuo T. Tsuda, Christopher T. Fallen, Junichi Kurihara, Kazuo Shiokawa, Yoshizumi Miyoshi, Brenton Watkins, Shin-ichiro Oyama

Publikováno v: Journal of Geophysical Research: Space Physics. 121:3564-3577

Measurements of the lower thermospheric wind with a Fabry-Perot interferometer (FPI) at Tromso, Norway, found the largest wind variations in a night during the appearance of auroral patches at the substorm recovery phase. Taking into account magnetos

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f20bf4c2df38f9103a15e7f2ef7813ab
https://doi.org/10.1002/2015ja022129

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First artificial periodic inhomogeneity experiments at HAARP

Autor: D. L. Hysell, M. J. McCarrick, Christopher T. Fallen, Juha Vierinen

Publikováno v: Geophysical Research Letters. 42:1297-1303

Experiments involving the generation and detection of artificial periodic inhomogeneities have been performed at the High Frequency Active Auroral Research Program (HAARP) facility. Irregularities were created using powerful X-mode HF emissions and t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bbbc9111b7442a600316b7f4560283e5
https://doi.org/10.1002/2015gl063064

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Lower thermospheric wind variations in auroral patches during the substorm recovery phase

Autor: Shin-ichiro, Oyama, Kazuo, Shiokawa, Yoshizumi, Miyoshi, Keisuke, Hosokawa, Brenton J., Watkins, Junichi, Kurihara, Takuo T., Tsuda, Christopher T., Fallen

18th EISCAT symposiumSession E3: Ionoshere/thermosphere/mesosphereMay 27 (Sat), NIPR Auditorium

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=jairo_______::82a4f09b325d5f6fb2912bcb371ca6dd
http://id.nii.ac.jp/1291/00014113/

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Diurnal and seasonal variation of electron heat flux measured with the Poker Flat Incoherent-Scatter Radar

Autor: Brenton Watkins, Christopher T. Fallen

Publikováno v: Journal of Geophysical Research: Space Physics. 118:5327-5332

[1] Measurements made with the Advanced Modular Incoherent Scatter Radar were used to calculate the average diurnal electron temperature and corresponding vertical heat flux above Poker Flat, Alaska. Our results show that both the electron heat flux

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::efccba789c26f825610a4ac67102ce9a
https://doi.org/10.1002/jgra.50485

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Radar observations of artificial E-region field-aligned irregularities

Autor: Christopher T. Fallen, D. L. Hysell, Brenton Watkins, E. Nossa

Publikováno v: Annales Geophysicae, Vol 27, Iss 7, Pp 2699-2710 (2009)
Annales Geophysicae, Vol 27, Pp 2699-2710 (2009)

Artificial E region field aligned plasma density irregularities (FAIs) were generated using HAARP in four different experimental modes and observed with a coherent scatter radar imager located 450 km to the southwest where it could detect field-align

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::536648ea8e4de853f53abf9d4d55b875
https://doi.org/10.5194/angeo-27-2699-2009

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Determining Energy Distributions of HF-Accelerated Electrons at HAARP

Autor: Christopher T Fallen

The main project objective was to determine energy distribution of ionosphere electrons accelerated by powerful high-frequency (HF) radio waves transmitted from the High-frequency Active Auroral Research Program (HAARP) transmitter in Alaska. For a g

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::765c14d1de96878372d7fc10a6d41560
https://doi.org/10.21236/ad1000661

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Calculations of 4278 Å artificial auroral airglow emissions resulting from powerful HF radio transmissions

Autor: Brenton Watkins, Christopher T. Fallen

Publikováno v: 2014 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM).

Powerful HF electromagnetic waves transmitted into the ionosphere from the High-frequency Active Auroral Research Program (HAARP) facility in Alaska and the European Incoherent Scatter Scientific Association (EISCAT) facility in Norway have induced a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::96a82d8a7547baa459a38d7f4b6e7d48
https://doi.org/10.1109/usnc-ursi-nrsm.2014.6928080

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Measuring the elastic properties of fine wire

Autor: J.A. Schmidt, Christopher T. Fallen, Gerald L. Crawford, J. Costello

Publikováno v: Journal of Biomedical Materials Research. 58:694-700

The elastic moduli of fine wires made from MP35N and 304SS used in implantable biomedical devices are assumed to be the same as those published in the literature. However, the cold working required to manufacture the wire significantly alters the ela

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f130c0d209eb6238984cff337b99fc27
https://doi.org/10.1002/jbm.1071

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GPU Performance Comparison for Accelerated Radar Data Processing

Autor: B.V.C. Bellamy, Brenton Watkins, Christopher T. Fallen, Greg Newby

Publikováno v: 2011 Symposium on Application Accelerators in High-Performance Computing.

Radar is a data-intensive measurement technique often requiring significant processing to make full use of the received signal. However, computing capacity is limited at remote or mobile radar installations thereby limiting radar data products used f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a9ce3ebbb0cc6db28df5afbc95d5e3ae
https://doi.org/10.1109/saahpc.2011.14

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