The Earth’s Magnetic Field in the Space Age: An Introduction to Terrestrial Magnetism

Abstract

The series of papers presented in this issue of Space Science Research (reprinted as Volume 36 in the Space Science Series of ISSI) is the result of a fruitful workshop that took place at the International Space Science Institute (ISSI), in Bern, Switzerland, during the week of March 9-13, 2009. Focussing on the (still very broad) topic of Terrestrial Magnetism, this workshop was the last of a series of three that aimed to present, discuss and summarize recent advances in our understanding of magnetic fields in the solar system. The earlier workshops, on solar and on planetary magnetism, were held in January

A note on the Weibel instability and thermal fluctuations

“…Thus, under non-dynamo conditions, the Weibel mechanism is an alternative to the celebrated turbulent magnetic dynamo mechanism, the latter being believed to be responsible for the generation of magnetic fields in planets (Christensen et al, 2010;Hulot et al, 2011), stars (e.g. Jones et al, 2010), galaxies and on the large scale in the universe.…”

The spatial-temporal structure of the magnetic field of Ukraine's territory: assessment of the contribution of internal and external sources

“…Åñòåñòâåí-íî, ÷òî åùå ñëîaeíåå ðàçîáðàòüñÿ ñ ïðèðîäîé èñòî÷íèêîâ âàðèàöèé ìàãíèòíîãî ïîëÿ Çåìëè êàê äëèííî-, òàê è êîðîòêîïåðèîäíûõ. ×àñòî âàðèàöèè âíåøíåãî è âíóòðåííåãî ïðîèñõîaeäåíèÿ âçàèìîçàâèñèìû è îáóñëîâëèâàþò äðóã äðóãà (íàïðèìåð, ãåîìàãíèòíûå âàðèàöèè èíäóöèðîâàíû â çåìíîé êîðå êàê çà ñ÷åò èçìåíåíèÿ ïîëÿ ÿäðà, òàê è çà ñ÷åò èîíîñôåðíî-ìàãíèòîñôåðíûõ èñòî÷íèêîâ ïîëÿ [Verbanac et al, 2007;Thebault et al, 2009;Hulot et al, 2010;Orliuk et al, 2011 á ] . Ïîýòîìó â äàííîé ñòàòüå ðàññìîòðåíû íåêîòîðûå àñïåêòû ðàçäåëåíèÿ âíóòðåííèõ è âíåøíèõ èñòî÷íèêîâ ìàãíèòíîãî ïîëÿ Çåìëè, à òàêaeå äàíà îöåíêà âêëàäà ðàçëè÷íûõ èñòî÷íèêîâ â ñóììàðíîå ïîëå è åãî âàðèàöèè.…”