دانلود گزارش کارورزی و کار آموزی

چکیده : 

Using Irkutsk digisonde data obtained in 2003–2011, a morphological analysis of the G condition occurrence has been made. The G

condition was found to occur during daylight hours in summer; in winter, it is extremely rare, and its appearance is associated with

intense magnetic storms. In the years of moderate solar activity, the G condition is most frequently registered at KpP4, in the forenoon.

During low solar activity, it can be observed under quiet geomagnetic conditions; in most cases, local time of its appearance shifts to

afternoon hours. The highest percentage of the G condition occurrence (7.7–6.4%) was recorded in June and July 2008 when the levels

of solar and geomagnetic activity were abnormally low.