Zobrazeno 1 - 10
of 33
pro vyhledávání: '"H. C. Stenbaek-Nielsen"'
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 2, Pp n/a-n/a (2023)
Abstract Four upward propagating streamers in two carrot sprites over northwest Texas were recorded at 100,000 frames per second at 07:46:35 UT, 2 June 2019, from the Langmuir Laboratory near Socorro, New Mexico. The streamers reached velocities of 5
Externí odkaz:
https://doaj.org/article/dc09ee11e9154fc290ca4ff442857c4e
Publikováno v:
Annales Geophysicae, Vol 28, Pp 873-881 (2010)
We present results from ground-based auroral observations coordinated with the Japanese satellite, Reimei, that took place during the winters of 2006, 2007 and 2008 at Poker Flat, Alaska. Comparable temporal and spatial resolution for the optical
Externí odkaz:
https://doaj.org/article/98578756640d487bab44da66340bbf65
Publikováno v:
Annales Geophysicae, Vol 27, Pp 1457-1467 (2009)
Observations of naturally enhanced ion acoustic lines (NEIALs) taken with the Poker Flat Incoherent Scatter Radar (PFISR) using a mode with very high time resolution are presented. The auroral event took place over Poker Flat, Alaska on 8 February
Externí odkaz:
https://doaj.org/article/faaed296185f4062942e371a91e35889
Publikováno v:
Annales Geophysicae, Vol 26, Pp 3623-3639 (2008)
We present results from a coordinated camera and radar study of the auroral ionosphere conducted during March of 2006 from Poker Flat, Alaska. The campaign was conducted to coincide with engineering tests of the first quarter installation of the P
Externí odkaz:
https://doaj.org/article/edda2ad949274b4c8903335cf69aeac3
Autor:
R. E. Erlandson, C. I. Meng, P. K. Swaminathan, C. K. Kumar, V. K. Dogra, B. J. Stoyanov, B. G. Gavrilov, Y. Kiselev, J. I. Zetzer, H. C. Stenbaek-Nielsen, K. A. Lynch, R. F. Pfaff, P. A. Delamere, S. Bounds, N. A. Gatsonis
Publikováno v:
Journal of Spacecraft and Rockets. 41:483-489
The objective of the Active Plasma Experiment North Star mission was to study the interaction of artificially produced aluminum ion plasma jets with the space environment. Two separate plasma jets were injected almost perpendicular to the local magne
Autor:
N. V. Smirnova, H. C. Stenbaek-Nielsen, R. Smith, Yu. I. Setzer, A. N. Lyakhov, A. P. Osepian, C.-I. Meng
Publikováno v:
Cosmic Research. 42:210-218
Spatial distributions of the electron density in the latitude range 60°–90° N were calculated on the basis of a physical model of the E and lower Fregions of the high-latitude ionosphere using statistical models of auroral proton and electron pre
Autor:
Richard H. Picard, D. R. Moudry, Matt Heavner, Jeff S. Morrill, Eugene M. Wescott, Davis D. Sentman, E. M. Dewan, Jeremy R. Winick, H. C. Stenbaek-Nielsen, F. T. São Sabbas
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 65:537-550
from a central excitation region directly above the storm. During the initial stages of the storm outwardly expanding waves possessed a period of � ≈10 min and wavelength � ≈50 km. Over a 1 h interval the waves gradually changed to longer per
Autor:
H. C. Stenbaek-Nielsen, A. Otto
Publikováno v:
Journal of Geophysical Research: Space Physics. 102:2223-2232
Earlier results from analyses of auroral all-sky data obtained on several series of conjugate flights along the College, Alaska, magnetic meridian are reevaluated, and it is suggested that while the diffuse aurora is conjugate, the discrete aurora is
Autor:
H. C. Stenbaek-Nielsen, Milinevsky P. Gennadi, S. N. Zaitsev, A. M. Evtushevsky, A. I. Kashirin
Publikováno v:
SPIE Proceedings.
In three barium releases made over the Caribbean during the summer of 1991, some peculiarities of the ion cloud dynamics and structure were observed with a low light level TV imager operated onboard a Russian research vessel. The two clouds were obse
Publikováno v:
30th Aerospace Sciences Meeting and Exhibit.
The relationship between releases of barium from the NASA Combined Release and Radiation Effects Satellite (CRRES) and enhanced auroral activity is discussed with reference to observational data. Barium releases were conducted at a variety of altitud