Zobrazeno 1 - 10
of 80
pro vyhledávání: '"D. J. McEwen"'
Publikováno v:
Annales Geophysicae, Vol 18, Pp 629-639 (2000)
Auroral and airglow emissions over Eureka (89° CGM) during the 1997-98 winter show striking variations in relation to solar wind IMF changes. The period January 19 to 22, 1998, was chosen for detailed study, as the IMF was particularly strong and
Externí odkaz:
https://doaj.org/article/68d84bed849040d2aaec8f3a709fbe1b
Publikováno v:
Auroral Dynamics and Space Weather
Autor:
G. G. Sivjee, D. J. McEwen
Publikováno v:
Canadian Journal of Physics. 90:753-758
An examination is made of Antarctic dayside auroras to establish how they relate to solar wind strength under the quiet conditions of the recent extended solar minimum when the solar wind pressure was weak and the interplanetary magnetic field Bz is
Publikováno v:
Advances in Space Research. 45:39-44
Current dayside optical studies of Aurora Australis from the Amundsen-Scott Research Station at the South Pole (74 degrees magnetic latitude) show some striking differences from optical results reported from Svalbard. A 6-channel meridian scanning ph
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 70:2014-2030
We study the solar dependence of the thermospheric dynamics based on more than 20 years Fabry–Perot interferometer O 6300 A emission observation of polar cap thermospheric wind from three stations: Thule (76.53°N, 68.73°W, MLAT 86N), Eureka (80.0
Publikováno v:
Advances in Space Research. 34:2080-2084
Photometers monitoring oxygen night airglow emissions and a Canadian advanced digital ionosonde (CADI) have given a complementary view of the polar ionosphere over Eureka, Canada (80°N, 86°W) through each winter since 1991. The 630 nm [O] emission
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 65:971-978
Combined three-station neutral wind observations from 70° to 80°N are used to study the 12-h oscillation from 87 to 130 km altitude. A strong 12-h wave with a 37 km vertical wavelength was observed at Troms o (69.6°N). The observed phases and vert
Publikováno v:
Advances in Space Research. 31:1081-1085
In April 2000, we started operating real-time collection of geomagnetic field data from Eureka, Canada in the northern near-pole region. The purpose of this project is to monitor magnetic activity in this region for space weather forecasting, to use
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 64:21-30
A joint ground-spacecraft study of the polar cap from January to March, 1997 shows that the dawn and dusk boundaries identified on the meridian scanning photometer scans from Eureka, in the central polar cap, agree well with the boundaries seen by th
Autor:
D. J. McEwen, Yongliang Zhang
Publikováno v:
Geophysical Research Letters. 27:477-480
Continuous monitoring of airglow and auroral emissions over Eureka (89° magnetic latitude) through each winter has shown that the dusk and dawn boundaries of the polar cap can be routinely seen when the IMF B 2 is northward. When this condition prev