Statistical Study on STEVE, HILDCAA and Two-Step Geomagnetic Storms on the 25th Solar Cycle

Erdağ H. Ş., Can Z.

Turkish Physical Society 39th International Physics Congress,, Muğla, Türkiye, 31 Ağustos - 04 Eylül 2023, ss.234

  • Yayın Türü: Bildiri / Özet Bildiri
  • Basıldığı Şehir: Muğla
  • Basıldığı Ülke: Türkiye
  • Sayfa Sayıları: ss.234
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Strong Thermal Emission Velocity Enhancement (STEVE) is one of the most current phenomena in atmospheric physics. It has been found to have a different mechanism than auroras. It is still a matter of research under which conditions this structure, which rarely appears regardless of the space weather, will be classified. In this study, the possibility of triggering STEVE by anomalies or events that occur during geomagnetic storms and have a direct effect on the earth's atmosphere (High-Intensity Long-Duration Continuous Auroral Electrojet Activity (HILDCAA), Two-step geomagnetic storms) is investigated. Statistical regression models were created using the computer coding programs (R and Python) and geomagnetic storms with various anomalies from the 25th solar cycle. The suitability of the models to reality and data is discussed, and the probabilities that trigger the formation of STEVE are interpreted based on data science.