Statistics of isolated and complex geomagnetic storms based on the APEV database for cycle 23 of solar activity

Veselovsky, I. S.; Lukashenko, A. T.

doi:10.1134/s0016793213050162

Cited by 3 publications

(5 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, a multi-storm is also considered as a complex storm when there is a continuous interval following the end of the recovery phase from the previous storm. Veselovsky & Lukashenko (2013) categorized a geomagnetic storm as complex when one event exhibits an isolated decrease in Dst and a superposition of several storms occurs, particularly when the next storm arrives before the previous storm has fully recovered. In contrast, a normal interval shows a clear variation in each storm phase without any complex disturbance or multistorms.…”

Section: Methodsmentioning

confidence: 99%

“…Notably, all step numbers were also found to occur in 2015 as it was also the peak year for geomagnetic storm occurrences in this current complete solar cycle 24. Veselovsky & Lukashenko (2013), who conducted an analysis on solar cycle 23, also found that the contribution of storm events with multiple steps was larger during the maximum and the declining phases of the solar cycle.…”

Section: Distribution and Categorization Of Geomagnetic Storms During...mentioning

confidence: 95%

“…In light of this analysis, it was evident that most storms with complex intervals showed a prolonged recovery phase. According to Veselovsky & Lukashenko (2013), this prolonged recovery phase can be attributed to multiple factors, including several small magnetic clouds, numerous solar flare eruptions, CMEs, and filaments passing along Earthʼs orbits during the next solar rotation. The analysis indicates that storms exhibiting rapid recovery are attributed 60% to ICME drivers, while 46% are associated with CIR drivers.…”

Section: Distribution and Categorization Of Geomagnetic Storms During...mentioning

confidence: 99%

“…Single and multiple interplanetary disturbances that are capable of causing complex geomagnetic storms may originate from the Sun, and these disturbances can arise from the same or different areas of active regions, depending on several conditions (Veselovsky & Lukashenko 2013). For normal intervals, the step development was observed to show up to three-steps, with 3 intervals of three-step storms observed with long recovery phase.…”

Section: Distribution and Categorization Of Geomagnetic Storms During...mentioning

confidence: 99%

See 3 more Smart Citations

A Comprehensive Classification and Analysis of Geomagnetic Storms Over Solar Cycle 24

Raja Halim Shah,

Abdul Hamid,

Abdullah

et al. 2024

Res. Astron. Astrophys.

View full text Add to dashboard Cite

A geomagnetic storm is a global disturbance of Earth’s magnetosphere, occurring as a result of the interaction with magnetic plasma ejected from the Sun. Despite considerable research, a comprehensive classification of storms for a complete solar cycle has not yet been fully developed, as most previous studies have been limited to specific storm types. This study, therefore, attempted to present complete statistics for solar cycle 24, detailing the occurrence of geomagnetic storm events and classifying them by type of intensity (moderate, intense, and severe), type of complete interval (normal or complex), duration of the recovery phase (rapid or long), and the number of steps in the storm’s development. The analysis applied data from ground-based magnetometers, which measured the Dst index as provided by the World Data Center for Geomagnetism, Kyoto, Japan. This study identified 211 storm events, comprising moderate (177 events), intense (33 events), and severe (1 event) types. About 36% of ICME and 23% of CIR are found to be geoeffective, that caused geomagnetic storms. Up to four-step development of geomagnetic storms was exhibited during the main phase for this solar cycle. Analysis showed the geomagnetic storms developed one or more steps in the main phase, which were probably related to the driver that triggered the geomagnetic storms. A case study was additionally conducted to observe the variations of the ionospheric disturbance dynamo (Ddyn) phenomenon that resulted from the geomagnetic storm event of July 13, 2015. The attenuation of the Ddyn in the equatorial region was analysed using the H component of geomagnetic field data from stations in the Asian sector (Malaysia and India). The variations in the Ddyn signatures were observed at both stations, with the TIR station (India) showing higher intensity than the LKW station (Malaysia).

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Distribution and Categorization Of Geomagnetic Storms During...mentioning

confidence: 95%

Section: Distribution and Categorization Of Geomagnetic Storms During...mentioning

confidence: 99%

Section: Distribution and Categorization Of Geomagnetic Storms During...mentioning

confidence: 99%

See 2 more Smart Citations

A Comprehensive Classification and Analysis of Geomagnetic Storms Over Solar Cycle 24

Raja Halim Shah,

Abdul Hamid,

Abdullah

et al. 2024

Res. Astron. Astrophys.

View full text Add to dashboard Cite

show abstract

“…The forward check through the Dst array from Dstmin continues until Dst is less than the threshold of Dst ≤ −30 nT. More formal definition of Dst storm onset, initial phase, main phase and recovery phase are given by Veselovsky and Lukashenko (2013) but our criteria allow capture the main profile of Dst storm and study the W -index response to it.…”

Section: Data Processingmentioning

confidence: 99%

Probability of occurrence of planetary ionosphere storms associated with the magnetosphere disturbance storm time events

2014

View full text Add to dashboard Cite

Abstract. The ionospheric W index allows to distinguish state of the ionosphere and plasmasphere from quiet conditions (W = 0 or ±1) to intense storm (W = ±4) ranging the plasma density enhancements (positive phase) or plasma density depletions (negative phase) regarding the quiet ionosphere. The global W index maps are produced for a period 1999-2014 from Global Ionospheric Maps of Total Electron Content, GIM-TEC, designed by Jet Propulson Laboratory, converted from geographic frame (−87.5:2.5:87.5 • in latitude, −180:5:180 • in longitude) to geomagnetic frame (−85:5:85 • in magnetic latitude, −180:5:180 • in magnetic longitude). The probability of occurrence of planetary ionosphere storm during the magnetic disturbance storm time, Dst, event is evaluated with the superposed epoch analysis for 77 intense storms (Dst ≤ −100 nT) and 230 moderate storms (−100 < Dst ≤ −50 nT) with start time, t 0 , defined at Dst storm main phase onset. It is found that the intensity of negative storm, iW − , exceeds the intensity of positive storm, iW + , by 1.5-2 times. An empirical formula of iW + and iW − in terms of peak Dst is deduced exhibiting an opposite trends of relation of intensity of ionosphere-plasmasphere storm with regard to intensity of Dst storm.

show abstract

Echo of ring current storms in the ionosphere

Gulyaeva

Mannucci

2020

Journal of Atmospheric and Solar-Terrestrial Physics

View full text Add to dashboard Cite

Statistics of isolated and complex geomagnetic storms based on the APEV database for cycle 23 of solar activity

Cited by 3 publications

References 6 publications

A Comprehensive Classification and Analysis of Geomagnetic Storms Over Solar Cycle 24

A Comprehensive Classification and Analysis of Geomagnetic Storms Over Solar Cycle 24

Probability of occurrence of planetary ionosphere storms associated with the magnetosphere disturbance storm time events

Echo of ring current storms in the ionosphere

Contact Info

Product

Resources

About