Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Valérie Coumans"'
Publikováno v:
Scopus-Elsevier
Annales Geophysicae, Vol 25, Pp 161-170 (2007)
Annales Geophysicae, Vol 25, Iss 1, Pp 161-170 (2007)
Annales Geophysicae, Vol 25, Pp 161-170 (2007)
Annales Geophysicae, Vol 25, Iss 1, Pp 161-170 (2007)
In a previous study, Blockx et al. (2005) showed that the SI12 camera on board the IMAGE spacecraft is an excellent tool to remotely determine the position of the isotropy boundary (IB) in the ionosphere, and thus is able to provide a reasonable esti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa80b5c72ecf67e1fa430947d38cc919
https://doi.org/10.5194/angeo-25-161-2007
https://doi.org/10.5194/angeo-25-161-2007
Autor:
Jean-Claude Gérard, Aikaterini Radioti, Marissa F. Vogt, Denis Grodent, Bertrand Bonfond, Valérie Coumans
Publikováno v:
Geophysical Research Letters. 38
[1] The most dynamic part of the Jovian UV aurora is located inside the main auroral oval. This region is known to regularly show localized but dramatic enhancements on timescales of several tens of seconds, called polar flares. They have often been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c2c9e1d29187c1a0c17aaa7dfc5aeb93
https://doi.org/10.1029/2010gl045981
https://doi.org/10.1029/2010gl045981
Publikováno v:
Journal of Geophysical Research: Space Physics. 114
[1] Substorm energetics has been shown to have two components, the “loading-unloading” component releasing energy previously stored in the tail and the “directly driven” component dissipating simultaneously fed solar wind energy. Previous stu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::facc01bce59e2875b3f58fdcb448b62a
https://doi.org/10.1029/2008ja013280
https://doi.org/10.1029/2008ja013280
Autor:
Katharine Kadinsky-Cade, M. Sue Greer, Weibin Xu, Ernest Holeman, Frederick J. Rich, David S. Evans, Valérie Coumans, Barbara A. Emery
Publikováno v:
Journal of Geophysical Research: Space Physics. 113
[1] Electron auroral energy flux is characterized by electron hemispheric power (Hpe) estimated since 1978 from National Oceanic and Atmospheric Administration (NOAA) and Defense Meteorological Satellite Program (DMSP) satellites after the estimates
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f3f05ca663bc50f957589ee55cc6cd6b
https://doi.org/10.1029/2007ja012866
https://doi.org/10.1029/2007ja012866
Publikováno v:
Journal of Geophysical Research: Space Physics. 112
[1] We present case studies and a statistical summary of optical observations of proton precipitation made during substorm growth phases. Our analysis is based on observations of the Doppler-shifted Lyman-α auroral emission obtained with the SI12 Sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::286d65f6b58c52d2e935f889c9a8ba5c
https://doi.org/10.1029/2007ja012329
https://doi.org/10.1029/2007ja012329
Autor:
Valérie Coumans, Benoît Hubert, Eric Donovan, Caroline Blockx, M. Meurant, Emma Spanswick, Jean-Claude Gérard, Martin Connors
Publikováno v:
Journal of Geophysical Research: Space Physics. 112
The Ion Isotropy Boundary (IB) is known to correlate well with the magnetic field inclination at geosynchronous orbit around 00 MLT and therefore provides a way to monitor the magnetotail stretching. Several ways to identify IB have been developed in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18fd1c0c8ea6e0063aa31605e75123be
https://doi.org/10.1029/2006ja012126
https://doi.org/10.1029/2006ja012126
Publikováno v:
Journal of Geophysical Research. 111
[1] The brightness of proton aurora observed near solar maximum at summer and winter solstices with the FUV-SI12 global imager on board the IMAGE satellite has been correlated with the solar wind and the interplanetary magnetic field characteristics
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::650182bd750ff627782b7dac3cd512b3
https://doi.org/10.1029/2005ja011317
https://doi.org/10.1029/2005ja011317
Autor:
Benoît Hubert, M. Meurant, Caroline Blockx, Larry R. Lyons, Jean-Claude Gérard, Eric Donovan, Valérie Coumans, Martin Connors
Publikováno v:
Journal of Geophysical Research. 110
[1] Sudden variations of the solar wind dynamic pressure frequently induce dayside enhancements of auroral activity with features such as high-latitude arcs, low-latitude proton flashes, and enhancement of auroral precipitation propagating dawnward a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93abfc0ded67cde7c5e07ceef9ba9a13
https://doi.org/10.1029/2004ja010916
https://doi.org/10.1029/2004ja010916
Publikováno v:
Journal of Geophysical Research. 110
[1] Several studies have attempted to identify the isotropy boundary (IB) defining the limit between the adiabatic and nonadiabatic trajectories of the trapped protons along closed magnetic field lines. This boundary is an indicator of the amount of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c19b2a8e125e4cc35ad793fac71d51a1
https://doi.org/10.1029/2005ja011103
https://doi.org/10.1029/2005ja011103
Publikováno v:
Journal of Geophysical Research. 109
[1] Observations with the FUV imagers on board the IMAGE satellite have been used to map the auroral electron and proton energy fluxes during the summer and winter solstices of 2000, in order to construct a statistical view of the global auroral prot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4271a7da7fbfe2fb0b3e1efe8387c1ec
https://doi.org/10.1029/2003ja010348
https://doi.org/10.1029/2003ja010348