We present the findings of a study of the sequence of solar activity that eventually resulted in 80 large geomagnetic storms (distinguished by minimum Dst -100nT to -200nT), 11 super geomagnetic storms (Dst -200nT to -300nT), and 6 super great geomagnetic storms (Dst -300nT) that occurred between 1996 and 2012. Large storms were discovered to be mostly caused by solar flares (M- and X-class), while corotating interaction region (CIR) was also a significant contributor to several of these storms. During the peak and declining phases of solar cycle 23, all extremely powerful storms were observed (2000-2004). It has been noted that coronal mass ejections (CMEs) and flares were always related with super and super tremendous storms (100%). M-class and X-class flares frequently accompany superstorms associated to CMEs. It is observed that 66.6% (4/6) super great geomagnetic storms (Dst ≤ -300nT) were associated with CMEs and solar flares. The number of storms related to X-class flares or CMEs were 50% (3/6). X-class flare/CMEs are found to be responsible for super geomagnetic storms.
Singh,S. (2024). Space weather disturbances and their geoeffectiveness during solar cycle 23 and 24. Iranian Journal of Physics Research, 24(3), 117-133. doi: 10.47176/ijpr.24.3.31863
MLA
Singh,S. . "Space weather disturbances and their geoeffectiveness during solar cycle 23 and 24", Iranian Journal of Physics Research, 24, 3, 2024, 117-133. doi: 10.47176/ijpr.24.3.31863
HARVARD
Singh S. (2024). 'Space weather disturbances and their geoeffectiveness during solar cycle 23 and 24', Iranian Journal of Physics Research, 24(3), pp. 117-133. doi: 10.47176/ijpr.24.3.31863
CHICAGO
S. Singh, "Space weather disturbances and their geoeffectiveness during solar cycle 23 and 24," Iranian Journal of Physics Research, 24 3 (2024): 117-133, doi: 10.47176/ijpr.24.3.31863
VANCOUVER
Singh S. Space weather disturbances and their geoeffectiveness during solar cycle 23 and 24. Dear user; Recently we have changed our software to Sinaweb. If you had already registered with the old site, you may use the same USERNAME but you need to change your password. To do so at the first use, please choose, 2024; 24(3): 117-133. doi: 10.47176/ijpr.24.3.31863