Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Josef Bochníček"'
Publikováno v:
Contributions to Geophysics and Geodesy, Vol 45, Iss 1, Pp 53-65 (2015)
A model of geomagnetic storms based on the method of artificial neural networks (ANN) combined with an analytical approach is presented in the paper. Two classes of geomagnetic storms, caused by coronal mass ejections (CMEs) and those caused by corot
Externí odkaz:
https://doaj.org/article/911e30c5461849408481d0f4ef4fbb3e
Publikováno v:
Studia Geophysica et Geodaetica. 63:455-464
The day-to-day effects of the strong geomagnetic disturbances on geopotential heights (GPH) in the winter lower atmosphere were described in many papers in the beginning of 1970s. These works focused on the North-East Pacific, while the North Atlanti
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 147:90-97
It is generally accepted that the geomagnetic K indices derived by experienced observers are of great value. The interactive method (IM) based on the traditional hand-scaling methodology is tested in this study. The tests are performed utilising the
Publikováno v:
Annales Geophysicae, Vol 26, Pp 1999-2004 (2008)
ResearcherID
Annales Geophysicae, Vol 26, Iss 7, Pp 1999-2004 (2008)
ResearcherID
Annales Geophysicae, Vol 26, Iss 7, Pp 1999-2004 (2008)
The solar effects on tropospheric circulation over Europe are investigated by counting the occurrence of Hess-Brezowsky synoptic types under various levels of solar activity. Solar minima are accompanied by a lower incidence of westerly types and a h
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::718637b791acc7c2f96411bb8a90e8f0
https://www.ann-geophys.net/26/1999/2008/
https://www.ann-geophys.net/26/1999/2008/
Publikováno v:
Advances in Space Research. 54:185-196
The paper is focused on ionospheric response to occasional magnetic disturbances above selected ionospheric stations located at middle latitudes of the Northern and Southern Hemisphere under extremely low solar activity conditions of 2007–2009. We
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. :9-14
A model to forecast 1-hour lead Dst index is proposed. Our approach is based on artificial neural networks (ANN) combined with an analytical model of the solar wind–magnetosphere interaction. Previously, the hourly solar wind parameters have been c
Publikováno v:
Advances in Space Research. 53:589-598
The paper deals with the relation of the southern orientation of the north–south component B z of the interplanetary magnetic field to geomagnetic activity (GA) and subsequently a method is suggested of using the found facts to forecast potentially
Publikováno v:
Annales Geophysicae, Vol 30, Pp 1719-1726 (2012)
The paper describes the association between high long-lasting solar/geomagnetic activity and geopotential height (GPH) changes in the winter lower atmosphere, based on their development in the Northern Hemisphere in the winter periods (December–Mar
Publikováno v:
Acta Astronautica. 69:758-766
Solar energetic particle (SEP) modelling has gained great interest in the community, specifically in connection with the safety of crews and the protection of technological systems of spacecraft situated outside the shielding of Earth's magnetosphere
Publikováno v:
Journal of Space Weather and Space Climate, Vol 9, p A11 (2019)
Some recent studies point out that currents related to the auroral oval, electrojets and field aligned currents (FACs), are serious candidates for the mechanism of the intense mid-latitude magnetic storms. It is interesting to re-analyse historical d