Zobrazeno 1 - 10
of 714
pro vyhledávání: '"S.-I. Akasofu"'
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
Externí odkaz:
https://doaj.org/article/457583b766d342c98c20e74e5966039f
Autor:
S.-I. Akasofu
Publikováno v:
Annales Geophysicae, Vol 35, Pp 965-978 (2017)
The sequence of phenomena consisting of solar flares, coronal mass ejections (CMEs), auroral substorms, and geomagnetic storms is mostly a manifestation of electromagnetic energy dissipation. Thus, first of all, it is natural to consider each of t
Externí odkaz:
https://doaj.org/article/b1678f8e7ccb4259b8ddde21e0594c61
Autor:
S.-I. Akasofu
Publikováno v:
History of Geo- and Space Sciences, Vol 6, Iss 1, Pp 23-43 (2015)
Solar–terrestrial physics, like any other scientific field, has evolved and developed by replacing older theories with newer theories. Unfortunately, each generation of young researchers tends to learn naturally only the latest, and perhaps the mos
Externí odkaz:
https://doaj.org/article/af429d359d3d45ecb46d103101be4cb0
Autor:
S.-I. Akasofu
Publikováno v:
Annales Geophysicae, Vol 31, Pp 387-394 (2013)
On the basis of auroral and polar magnetic substorm studies, the relationship between the solar wind-magnetosphere dynamo (the DD dynamo) current and the substorm dynamo (the UL dynamo) current is studied. The characteristics of both the DD and UL
Externí odkaz:
https://doaj.org/article/af8a1c979dac484d9002ab00612092dd
The choice of the concept of magnetic field lines or of electric current lines: Alfvén medal lecture
Autor:
S.-I. Akasofu
Publikováno v:
Annales Geophysicae, Vol 29, Pp 1215-1232 (2011)
In 1967, at the Birkeland Symposium in Sandefjord, Norway, Professor Hannes Alfvén stated that the second approach (in solving unsolved problems by the standard MHD theory) to cosmic electrodynamics is to "thaw" the "frozen-in" magnetic field lin
Externí odkaz:
https://doaj.org/article/dc858c6b875346789399c42f7f0a736c
Publikováno v:
Antarctic Record, Vol 53, Iss 3, Pp 233-258 (2009)
Following the traditional way of expression, geomagnetic storms have been classified into three types; flare-type Sc storms, CH-type Sg storms, and DB-type Sc storms (Sc:sudden commencement;CH:coronal hole;g:gradual;DB:disparition brusque).We have di
Externí odkaz:
https://doaj.org/article/002d2238a818401e948f2bef92a76305
Akademický článek
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Akademický článek
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We summarize the major aspects of the remarkable, fairly long lasting period ( $\sim 2005$ to $\sim 2010$ ) of low solar activity, that we will call the Transition. It is the transitional stage between the Grand Maximum of the 20th century and a fort
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b702bcd6fed80bf624f9d9dd9ff521f
https://www.vliz.be/imisdocs/publications/33/297233.pdf
https://www.vliz.be/imisdocs/publications/33/297233.pdf
Autor:
S.-I. Akasofu
Publikováno v:
Geophysical Research Letters. 41:3698-3700
McIntosh (1981) noted that sunspot pairs appear preferentially near the boundary of unipolar magnetic (UM) regions of opposite polarity. A large number of solar magnetograms from the Mount Wilson Observatory and the Kitt Peak Observatory during fairl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2192b9d1bf7a49f80f4a5cb6f33b8c05
https://doi.org/10.1002/2014gl060319
https://doi.org/10.1002/2014gl060319