Oct 27 – 31, 2025
Europe/Stockholm timezone

Type II Radio Bursts and their association with Space Weather Phenomena

Oct 29, 2025, 2:15 PM
15m
Studion

Studion

Oral SWR1 - Magnetic Sources of Space Weather Across Solar Atmospheric Layers SWR1 – Magnetic Sources of Space Weather Across Solar Atmospheric Layers

Speaker

Pooja Devi (Kumaun University Nainital)

Description

We present a comprehensive statistical study between type II radio bursts from the metric (m) to the dekameric–hectometric (DH) domain and their association with different solar and space weather phenomena, namely, solar flares, sunspot configurations, filament eruptions, coronal mass ejections, their interplanetary counterparts and shocks, in situ detected particles and geomagnetic storms. We analysed m-type II radio bursts from Radio Solar Telescope Network (RSTN) data that is freely available from four worldwide stations: Learmonth, Sanvito, Sagamore Hills and Palehua, and DH-type IIs from Wind/WAVES for solar cycle 24 (2009−2019). We perform the temporal and spatial association between the radio emission and the listed above activities, separately for the three sub-categories, m-only, m + DH and DH-only type IIs. A quantitative assessment on the occurrence rates is presented as a function of the strength of the specific solar and space weather phenomena: highest rates are obtained with solar events, whereas a much weaker relationship is found with their interplanetary counterparts. The outcomes could be used in revealing the occurrence of solar and space weather activities based on the ground-based radio perspective.

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Primary author

Pooja Devi (Kumaun University Nainital)

Co-authors

Dr Rositsa Miteva (Institute of Astronomy with National Astronomical Observatory – Bulgarian Academy of Sciences) Ramesh Chandra (Kumaun University, Nanital, IN) Dr Bendict Lawrance (Kyung Hee University)

Presentation materials

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