RUSSIAN JOURNAL OF EARTH SCIENCES, VOL. 17, ES4003, doi:10.2205/2017ES000606, 2017 ![]() Figure 6. (a) An image of the auroral UV activation observed by the WIC instrument on the IMAGE spacecraft ($L$-filter) on 2001, 02/01 (day 032) at 0423:52 UT. The relative Pi2 signal power (estimated within a time interval of $\pm 2.5$ min from 0425 UT) and UV intensity are color coded. The maximal disturbances are $B_{\max}=49.0$ dB, UVI$_{\max}=21,457$ r.u. (b) The same format as in top panel. The WIC snapshot is taken at 0442:17 UT, and the Pi2 signal power with $B_{\max}= 46.0$ dB has been estimated within a time interval $0445\pm $0007:30 UT. The maximal disturbance of UVI$_{\max}=11,994$ r.u. Copyright 2017 by the Geophysical Center RAS. Generated from LaTeX source by ELXpaper, v.1.5 software package. |