Zobrazeno 1 - 10
of 43
pro vyhledávání: '"A. R. W. Hughes"'
Publikováno v:
Annales Geophysicae, Vol 24, Pp 2719-2733 (2006)
Observations of Pi2 pulsations at middle and low latitudes have been explained in terms of cavity mode resonances, whereas transients associated with field-aligned currents appear to be responsible for the high latitude Pi2 signature. Data fr
Externí odkaz:
https://doaj.org/article/d8cf2c88b53b4917942d928b7f35dfd5
Publikováno v:
Annales Geophysicae, Vol 24, Pp 529-542 (2006)
Lightning Imaging Sensor (LIS) data have been analysed to ascertain the statistical pattern of lightning occurrence over southern Africa. The diurnal and seasonal variations are mapped in detail. The highest flash rates (107.2 km-2 y-1) occur clos
Externí odkaz:
https://doaj.org/article/1945117bfc6c4d01beda484822ead0c6
Autor:
A. B. Collier, A. R. W. Hughes
Publikováno v:
Annales Geophysicae, Vol 22, Pp 4311-4327 (2004)
The Substorm Chorus Event (SCE) is a radio phenomenon observed on the ground after the onset of the substorm expansion phase. It consists of a band of VLF chorus with rising upper and lower cutoff frequencies. These emissions are thought to result
Externí odkaz:
https://doaj.org/article/05e14c7e7516490cb002eaea61f03303
Publikováno v:
Annales Geophysicae
Annales Geophysicae, European Geosciences Union, 2006, 24 (10), pp.2719-2733
Annales Geophysicae, Vol 24, Pp 2719-2733 (2006)
Annales Geophysicae, Vol 24, Iss 10, Pp 2719-2733 (2006)
Annales Geophysicae, European Geosciences Union, 2006, 24 (10), pp.2719-2733
Annales Geophysicae, Vol 24, Pp 2719-2733 (2006)
Annales Geophysicae, Vol 24, Iss 10, Pp 2719-2733 (2006)
Observations of Pi2 pulsations at middle and low latitudes have been explained in terms of cavity mode resonances, whereas transients associated with field-aligned currents appear to be responsible for the high latitude Pi2 signature. Data from Clust
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bd3ed22f0210f5d2b61631dcf69784c
https://www.ann-geophys.net/24/2719/2006/
https://www.ann-geophys.net/24/2719/2006/
Autor:
Andrew B. Collier, A. R. W. Hughes
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 73:2392-2398
The idea that tropical lightning activity follows the motion of the Intertropical Convergence Zone (ITCZ) is based on anecdotal evidence, or at best indirect measurements. Definitive observations of lightning from satellite instruments are used here
Autor:
Nesvit E. Castellano, Rodrigo E. Bürgesser, Eldo E. Ávila, Andrew B. Collier, Rosa Hilda Compagnucci, A. R. W. Hughes
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 72:1114-1121
Satellite observations of cloud top temperature and lightning flash distribution are used to examine the relationship between deep convection and lightning activity over the tropical regions of the northern and southern hemispheres. In agreement with
Publikováno v:
Annales Geophysicae, Vol 24, Pp 529-542 (2006)
Annales Geophysicae, Vol 24, Iss 2, Pp 529-542 (2006)
Scopus-Elsevier
Annales Geophysicae, Vol 24, Iss 2, Pp 529-542 (2006)
Scopus-Elsevier
Lightning Imaging Sensor (LIS) data have been analysed to ascertain the statistical pattern of lightning occurrence over southern Africa. The diurnal and seasonal variations are mapped in detail. The highest flash rates (107.2 km-2 y-1) occur close t
Autor:
Elisabeth Blanc, Robert A. Marshall, József Bór, Umran S. Inan, A. R. W. Hughes, Serge Soula, Gabriella Sátori, Christo Haldoupis, Torsten Neubert, Ib Lundgaard Rasmussen, Lars Knutsson, A. Mika, Thomas Farges, Oscar van der Velde, Andrew B. Collier, S. Laursen, T. H. Allin
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics
Journal of Atmospheric and Solar-Terrestrial Physics, 2005, 67 (8-9), pp.807-820. ⟨10.1016/j.jastp.2005.02.004⟩
Journal of Atmospheric and Solar-Terrestrial Physics, Elsevier, 2005, 67 (8-9), pp.807-820. ⟨10.1016/j.jastp.2005.02.004⟩
Journal of Atmospheric and Solar-Terrestrial Physics, 2005, 67 (8-9), pp.807-820. ⟨10.1016/j.jastp.2005.02.004⟩
Journal of Atmospheric and Solar-Terrestrial Physics, Elsevier, 2005, 67 (8-9), pp.807-820. ⟨10.1016/j.jastp.2005.02.004⟩
During the Northern Hemisphere summer of 2003 a sprite observation campaign was conducted from Southern Europe and the magnetically conjugate region in South Africa. The campaign brought together a wide variety of instrumentation to investigate the e
Autor:
A. R. W. Hughes
Publikováno v:
Astrophysics and Space Science. 230:431-438
The study of VLF waves at ground based stations is an important source of information on particles trapped in the magnetosphere. By various techniques it is also possible to measure plasma densities, electric fields and monitor energetic particle inj
Autor:
A. R. W. Hughes, Andrew B. Collier
Publikováno v:
Journal of Geophysical Research. 116
[1] Concise rainfall, temperature, and humidity climatologies are available for most countries, reflecting the regular annual variation of these quantities, usually with monthly resolution. Although numerous surveys of global and regional lightning a