Zobrazeno 1 - 10
of 549
pro vyhledávání: '"J. A. Wild"'
Autor:
D. D. Billett, K. Hosokawa, A. Grocott, J. A. Wild, A. L. Aruliah, Y. Ogawa, S. Taguchi, M. Lester
Publikováno v:
Geophysical Research Letters, Vol 47, Iss 4, Pp n/a-n/a (2020)
Abstract Using data from the Scanning Doppler Imager, the Super Dual Auroral Radar Network, the EISCAT Svalbard Radar, and an auroral all‐sky imager, we examine an instance of F region neutral winds which have been influenced by the presence of pol
Externí odkaz:
https://doaj.org/article/f586b1d8a1884185a7a78bfc3000dffb
Autor:
B. J. Jackel, C. Unick, M. T. Syrjäsuo, N. Partamies, J. A. Wild, E. E. Woodfield, I. McWhirter, E. Kendall, E. Spanswick
Publikováno v:
Geoscientific Instrumentation, Methods and Data Systems, Vol 3, Iss 1, Pp 71-94 (2014)
Optical aurora can be structured over a wide range of spatial and temporal scales with spectral features that depend on the energy of precipitating particles. Scientific studies typically combine data from multiple instruments that are individually o
Externí odkaz:
https://doaj.org/article/cf90605f5f71455984edee30461c051a
Autor:
M. G. G. T. Taylor, H. Hasegawa, B. Lavraud, T. Phan, C. P. Escoubet, M. W. Dunlop, Y. V. Bogdanova, A. L. Borg, M. Volwerk, J. Berchem, O. D. Constantinescu, J. P. Eastwood, A. Masson, H. Laakso, J. Soucek, A. N. Fazakerley, H. U. Frey, E. V. Panov, C. Shen, J. K. Shi, D. G. Sibeck, Z. Y. Pu, J. Wang, J. A. Wild
Publikováno v:
Annales Geophysicae, Vol 30, Pp 1025-1035 (2012)
The Kelvin-Helmholtz Instability (KHI) can drive waves at the magnetopause. These waves can grow to form rolled-up vortices and facilitate transfer of plasma into the magnetosphere. To investigate the persistence and frequency of such waves at the
Externí odkaz:
https://doaj.org/article/27c4aca583f84442a04e6f0b78f11b38
Autor:
M. Volwerk, J. Berchem, Y. V. Bogdanova, O. D. Constantinescu, M. W. Dunlop, J. P. Eastwood, P. Escoubet, A. N. Fazakerley, H. Frey, H. Hasegawa, B. Lavraud, E. V. Panov, C. Shen, J. K. Shi, M. G. G. T. Taylor, J. Wang, J. A. Wild, Q. H. Zhang, O. Amm, J. M. Weygand
Publikováno v:
Annales Geophysicae, Vol 29, Pp 1549-1569 (2011)
A study of the interaction of solar wind magnetic field rotations with the Earth's magnetosphere is performed. For this event there is, for the first time, a full coverage over the dayside magnetosphere with multiple (multi)spacecraft missions fro
Externí odkaz:
https://doaj.org/article/7dcda56a770c4cca812920528ab4b739
Autor:
M. W. Dunlop, Q.-H. Zhang, Y. V. Bogdanova, K. J. Trattner, Z. Pu, H. Hasegawa, J. Berchem, M. G. G. T. Taylor, M. Volwerk, J. P. Eastwood, B. Lavraud, C. Shen, J.-K. Shi, J. Wang, D. Constantinescu, A. N. Fazakerley, H. Frey, D. Sibeck, P. Escoubet, J. A. Wild, Z. X. Liu, C. Carr
Publikováno v:
Annales Geophysicae, Vol 29, Pp 1683-1697 (2011)
During April to July 2007 a combination of 10 spacecraft provided simultaneous monitoring of the dayside magnetopause across a wide range of local times. The array of four Cluster spacecraft, separated at large distances (10 000 km), were traversi
Externí odkaz:
https://doaj.org/article/a3c0d91c998a46658926507aae13edb0
Publikováno v:
Annales Geophysicae, Vol 27, Pp 4183-4195 (2009)
We present a case study of an omega band current system from 11 May 1998 using data from the Imaging Riometer for Ionospheric Studies (IRIS) in Finland. For the first time, images of a substorm-related omega band in cosmic noise absorption are sho
Externí odkaz:
https://doaj.org/article/ba7850681adb467a9870c149e7cd819b
Publikováno v:
Annales Geophysicae, Vol 27, Pp 3421-3428 (2009)
Substorms are known to cause geomagnetically induced currents (GIC) in power transmission lines through variations in the ground magnetic field. An improved knowledge and understanding of how the different phases of substorms affect the ground mag
Externí odkaz:
https://doaj.org/article/5080f1a6753a4d0c9fa1c96566716b1f
Publikováno v:
Annales Geophysicae, Vol 27, Pp 3559-3570 (2009)
Some studies over the last decade have indicated that the instability responsible for substorm expansion phase onset may require an external trigger such as a northward turning of the interplanetary magnetic field (IMF). Statistical investigations
Externí odkaz:
https://doaj.org/article/983d99649ce443ca92ff8b0a645fe2b6
Publikováno v:
Annales Geophysicae, Vol 27, Pp 591-600 (2009)
Using data from the Super Dual Auroral Radar Network (SuperDARN) we investigate the ionospheric convection response to magnetospheric substorms. Substorms were identified using the Far Ultraviolet (FUV) instrument on board the Imager for Magnetopa
Externí odkaz:
https://doaj.org/article/0861b1b9fe6445e9a2ca9f5c00f140b2
Publikováno v:
Annales Geophysicae, Vol 26, Pp 3411-3428 (2008)
Among the many challenges facing the space weather modelling community today, is the need for validation and verification methods of the numerical models available describing the complex nonlinear Sun-Earth system. Magnetohydrodynamic (MHD) models
Externí odkaz:
https://doaj.org/article/489e785d44af4d5f9c5f45301d4439cd