排序方式： 共有24条查询结果，搜索用时 78 毫秒
21.
Summary Using the annual values of the indices of solar and geomagnetic activity for the period 1868–1976, the basic values characterizing the cycle as a whole were determined for the 11-year cycles nos 11–20, (Tab. 1). High values of the coefficients of correlation were found for some pairs of characteristic values of the same and different kinds, given in Tab. 2, which can be utilized for long-term predictions of geomagnetic activity.
a auu¶rt;u au u¶rt; uaum amumu muu 1868–1976 n¶rt; ¶rt; 11-mu u 11–20 naam aamuu u a (a. 1). u au uuma uu ¶rt; m na naam ¶rt;ua u ¶rt;ua ¶rt;a (a. 2), m m amu nuu nu ¶rt; nuauuaum amumu.相似文献
22.
Summary The individual storm-time variations of the geomagnetic field were compared with the variations of the Bz-component of the interplanetary magnetic field over 24 and 48-hour intervals of storm time. Good correlation between Bz and Dst was observed in about one half of the 166 cases analysed (1965–72), the time lag of the manifestations of the interplanetary field at the Earth's surface having been taken into account. The effect of the Bz-field is reflected to a considerably larger extent in intense storms (Dst –80 nT). Good correlation was observed in 80% of the total number of 35 intense storms. Preliminary investigations have shown that Dst-variations, constructed from Bz-data using the relations derived herein, are quite close to the observed, particularly as regards the main phase (3 examples are given). 相似文献
23.
Summary The effects of solar proton flares and enhanced solar activity, indicated by intensive radio bursts in the decimetre range, on the Auroral Electrojet (AE) Index at the time these events occurred, are investigated. A significant increase in the level of the AE index was observed after the occurrence of these events. 相似文献
24.
