Zobrazeno 1 - 10
of 425
pro vyhledávání: '"M. J. Nicolls"'
Publikováno v:
Annales Geophysicae, Vol 31, Pp 1163-1176 (2013)
A comprehensive 2-year dataset collected with the Poker Flat Incoherent Scatter Radar (PFISR) located near Fairbanks, Alaska (MLAT = 65.4° N) is employed to identify and analyse 22 events of anomalous electron heating (AEH) in the auroral E regio
Externí odkaz:
https://doaj.org/article/9e6528538ece4186a94ffbf95f645c57
Publikováno v:
Annales Geophysicae, Vol 30, Pp 945-962 (2012)
In this paper, we develop an estimator for the vertical flux of horizontal momentum with arbitrary beam pointing, applicable to the case of arbitrary but fixed beam pointing with systems such as the Poker Flat Incoherent Scatter Radar (PFISR). Thi
Externí odkaz:
https://doaj.org/article/97ccc30186134fe193309c28797281d2
Autor:
M. J. Nicolls, M. C. Kelley, M. N. Vlasov, Y. Sahai, J. L. Chau, D. L. Hysell, P. R. Fagundes, F. Becker-Guedes, W. L. C. Lima
Publikováno v:
Annales Geophysicae, Vol 24, Pp 1317-1331 (2006)
We report here on post-midnight uplifts near the magnetic equator. We present observational evidence from digital ionosondes in Brazil, a digisonde in Peru, and other measurements at the Jicamarca Radio Observatory that show that these uplifts occ
Externí odkaz:
https://doaj.org/article/b4cd5fa113ab4923b0afcd6d39c76a79
Autor:
Eric Donovan, William A. Bristow, Larry R. Lyons, J. M. Ruohoniemi, Nozomu Nishitani, S. Chen, Vassilis Angelopoulos, Yukitoshi Nishimura, B. Gallardo-Lacourt, M. J. Nicolls, Don L. Hampton
Publikováno v:
Journal of Geophysical Research: Space Physics. 120:5009-5021
We have combined radar observations and auroral images obtained during the Poker Flat Incoherent Scatter Radar Ion Neutral Observations in the Thermosphere campaign to show the common occurrence of westward moving, localized auroral brightenings near
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8dd421cf4a7c25d18c08ff0b16f9b779
https://doi.org/10.1002/2015ja021023
https://doi.org/10.1002/2015ja021023
Autor:
William A. Bristow, Lucas Liuzzo, M. J. Nicolls, E. J. Mitchell, Don L. Hampton, N. J. Perlongo, Aaron J. Ridley, Mark Conde
Publikováno v:
Journal of Geophysical Research: Space Physics. 120:715-735
Winds in the thermosphere are highly important for transporting mass, momentum, and energy over the globe. In the high-latitude region, observations show that ion and neutral motions are strongly coupled when the aurora is present but the coupling is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3117d2a15c2c83bebb6eb3841504e1a5
https://doi.org/10.1002/2014ja020553
https://doi.org/10.1002/2014ja020553
Autor:
Larry R. Lyons, Mark B. Moldwin, Eric Donovan, Endawoke Yizengaw, Aaron J. Ridley, M. J. Nicolls, Shasha Zou, Anthea J. Coster
Publikováno v:
Journal of Geophysical Research: Space Physics. 118:2565-2572
[1] We present a detailed case study of the electrodynamics of a high-latitude trough observed at ~ 12 UT (~1 MLT) on 8 March 2008 using multiple instruments, including incoherent scattering radar (ISR), GPS total electron content (TEC), magnetometer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c8f3bf05e7b46510f3c8a11ac3f6e54
https://doi.org/10.1002/jgra.50120
https://doi.org/10.1002/jgra.50120
Autor:
Zou, Ying1 ying.zou@jhuapl.edu, Sheng, Cheng2, Conde, Mark3, Shi, Xueling4,5, Bristow, William A.6, Wu, Yen-Jung Joanne7, Wan, Xin, Li, Zheng
Publikováno v:
Frontiers in Astronomy & Space Sciences. 2024, p1-13. 13p.
Publikováno v:
Annales Geophysicae (ANGEO) (09927689). Jun2012, Vol. 30 Issue 6, p945-962. 18p. 2 Charts, 11 Graphs.
Publikováno v:
Geophysical Research Letters; 1/28/2024, Vol. 51 Issue 2, p1-10, 10p