
Magnetic Storms According to the scientists – perturbation geomagnetic field known duration from several hours to several days, due to inflow in the vicinity of the Earth perturbed high-speed streams of solar wind and associated shock wave.
A new surge of activity on the upcoming solar cycle started last weekend. The first signs of "revival" on our planet began at noon Friday, when came the rapid growth of X-ray radiation Sun, suggest an increase in temperature of the corona. On Sunday there was an outbreak magnitude M7.4, which became a record in this solar cycle.
The previous record, flash M3.4, now moved up to second place, was registered only 18 days ago during a previous burst of activity Sun, was registered from 19 to 21 January 2010 on the eve of 2012.
Less severe storms occurred in 1921 and 1960 when there was massive disruption to radio communications.
Geomagnetic storm 1859 (Karringtonsky storm, Sunny Supershtorm, Event Carrington) was the most powerful geomagnetic storm in history.
How do magnetic storms can be svyazony with priblezheniem 2012?
Research forecast geomagnetic activity using data from telescopes and satellites is given no more than a day ahead with a correlation coefficient of 0.7 . On the third day, the correlation coefficient drops to a threshold of 2012.
Forecast a month in advance can only rely on the 27-day recurrence is associated with a rotation period Sun axis. The high accuracy of this forecast can not qualify because the average lifetime of active centers is 6-10 days.
The magnetic field of – component of the electromagnetic field, which appears in the presence of time-varying electric field. In addition, the magnetic field can be produced by the current of charged particles, or magnetic moments of electrons in atoms (permanent magnets). From the viewpoint of quantum field theory, electromagnetic interaction is mediated by a massless boson-photon (a particle that can be represented as a quantum excitation of the electromagnetic field). The main characteristic of the magnetic field is his strength, defined by the vector magnetic induction (magnetic induction vector). B SI magnetic induction is measured in tesla.
The magnetic field of – is a special kind of matter, through which the interaction between moving charged particles or bodies possessing a magnetic moment.
You can also consider the magnetic field as a relativistic component of the electric field. More precisely, the magnetic fields are a necessary consequence of the existence of electric fields and special relativity. However, the magnetic and electric fields of the electromagnetic field, the manifestations of which are light and other electromagnetic waves.