Zobrazeno 1 - 9
of 9
pro vyhledávání: '"L. J. Baddeley"'
Publikováno v:
Annales Geophysicae, Vol 40, Pp 151-165 (2022)
The present case study is focused on fluctuations at ∼ 1.5 mHz observed on open field lines in both of the polar caps in ground-based geomagnetic data and in the electron concentration in the Northern Hemisphere ionosphere. Coherent pulsations with
Externí odkaz:
https://doaj.org/article/61d3de1156f047bb91571d973929f30c
Autor:
D. M. Wright, R. S. Dhillon, T. K. Yeoman, T. R. Robinson, E. C. Thomas, L. J. Baddeley, S. Imber
Publikováno v:
Annales Geophysicae, Vol 27, Pp 2623-2631 (2009)
On 10 October 2006 the SPEAR high power radar facility was operated in a power-stepping mode where both CUTLASS radars were detecting backscatter from the SPEAR-induced field-aligned irregularities (FAIs). The effective radiated power of SPEAR was
Externí odkaz:
https://doaj.org/article/007cccec327e4db183b6a37064630ffa
Publikováno v:
Annales Geophysicae, Vol 26, Pp 2253-2263 (2008)
HF radar backscatter which has been artificially-induced by a high power RF facility has been demonstrated to provide ionospheric electric field data of unprecedented temporal resolution and accuracy. Here such data, induced by the SPEAR high powe
Externí odkaz:
https://doaj.org/article/14e122d41e71476e83958f79e1ed0eb3
Autor:
T. K. Yeoman, G. Chisham, L. J. Baddeley, R. S. Dhillon, T. J. T. Karhunen, T. R. Robinson, A. Senior, D. M. Wright
Publikováno v:
Annales Geophysicae, Vol 26, Pp 843-852 (2008)
The Super Dual Auroral Radar Network (SuperDARN) network of HF coherent backscatter radars form a unique global diagnostic of large-scale ionospheric and magnetospheric dynamics in the Northern and Southern Hemispheres. Currently the ground projec
Externí odkaz:
https://doaj.org/article/0407f49319bf46829072f3b78a32e7cf
Publikováno v:
Annales Geophysicae, Vol 23, Pp 1807-1820 (2005)
An HF Doppler sounder, DOPE (DOppler Pulsation Experiment) with three azimuthally-separated propagation paths is used to provide the first statistical examination of small scale-sized, high m waves where a direct measurement of the azimuthal waven
Externí odkaz:
https://doaj.org/article/547040db05524636963406a136dc97cc
Publikováno v:
Annales Geophysicae, Vol 23, Pp 567-577 (2005)
Many theories state that Ultra Low Frequency (ULF) waves with a high azimuthal wave number (m) have their energy source in wave-particle interactions, yet this assumption has been rarely tested numerically and thus many questions still remain as t
Externí odkaz:
https://doaj.org/article/cff225c369e44caeae989596ca515df0
Publikováno v:
Annales Geophysicae, Vol 22, Pp 4229-4241 (2004)
The first statistical study of the unstable proton populations which contain "free energy" required to drive small-scale poloidal mode ULF waves in the magnetosphere between L-shell locations of 6 and 9 is presented. The data examined are all in th
Externí odkaz:
https://doaj.org/article/946d4a9960424a15b9d011b27bd3e1df
Autor:
D. M. Wright, T. K. Yeoman, L. J. Baddeley, J. A. Davies, R. S. Dhillon, M. Lester, S. E. Milan, E. E. Woodfield
Publikováno v:
Annales Geophysicae, Vol 22, Pp 169-182 (2004)
The EISCAT high power heating facility at Tromsø, northern Norway, has been utilised to generate artificial radar backscatter in the fields of view of the CUTLASS HF radars. It has been demonstrated that this technique offers a means of making ve
Externí odkaz:
https://doaj.org/article/83d37160360d4f0da8acd2b214531631
Publikováno v:
Annales Geophysicae, Vol 20, Pp 1487-1498 (2002)
HF radar backscatter, which has been artificially-induced by a high power RF facility such as the EISCAT heater at Tromsø, has provided coherent radar ionospheric electric field data of unprecedented temporal resolution and accuracy. Here such
Externí odkaz:
https://doaj.org/article/0c72f5554d92414c8168884fc557f418