Solar Extreme Events of 2003:
Fundamental Science and Applied Aspects

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Earth tropospheric circulation over the period of extreme events on the Sun.
Val'chuk T.E., Kononova N.K.,

Meteorological situation in October-November 2003 was studied from the point of view of troposphere reaction on strong solar activity phenomena. Over this time interval we have a lot of very important data for analyzing because both geomagnetic and solar activities were connected with power X-rays flares. The magnetosphere storms were of extreme values. Their influence on the atmospheric circulation has been considered using meteorological synoptic charts. The circulation types, responsible for dramatic transformations in troposphere over disturbed periods, have been revealed. The connection of monthly mean number of elementary circulation mechanisms (ECMs) over 100-year series as well as ECMs in October-November 2003 has been studied. The strong response of tropospheric dynamics as a result on extreme solar phenomena (solar X-flare occurrence in geo-effective regions on solar disk and generated strong geomagnetic storms in Earth's magnetosphere) has been recognized. The analysis of solar wind parameters mainly reveals the time interval coincidence of the solar wind velocity and plasma concentration rising with mostly intensive 12 and 13 types of ECM. Probably, individual events in troposphere, pictured on synoptic charts, may be accounting for characteristic features of energy transformations in lover atmosphere. Solar activity (solar flares, coronal mass ejections, filament eruptions, solar characteristic radiation bursts and other) tentatively may influence on the complex nonlinear processes forming of dynamical meridional types of ECM.

Skobeltsyn Institute of Nuclear Physics, Moscow State University, 2004