We present a statistical analysis of solar coronal mass ejections (CMEs) based on 23 years
of quasi-continuous observations with the LASCO coronagraph, thus covering two complete …

Space Weather is the portion of space physics that has a direct effect on humankind. Space
Weather is an old branch of space physics that originates back to 1808 with the publication …

Bipolar magnetic regions (BMRs) provide crucial information about solar magnetism. They
exhibit varying morphology and magnetic properties throughout their lifetime, and studying …

We discuss a solar dynamo model of Tayler–Spruit type whose Ω Ω-effect is conventionally
produced by a solar-like differential rotation but whose α α-effect is assumed to be …

We present results from a three-dimensional Babcock–Leighton (BL) dynamo model that is
sustained by the emergence and dispersal of bipolar magnetic regions (BMRs). On average …

Abstract Space weather has long been known to approximately follow the solar cycle, with
geomagnetic storms occurring more frequently at solar maximum than solar minimum. There …

Powerful 'space weather'events caused by solar activity pose serious risks to human health,
safety, economic activity and national security. Spikes in deaths due to heart attacks, strokes …

Rossby waves are a type of global-scale wave that develops in planetary atmospheres,
driven by the planet's rotation. They propagate westward owing to the Coriolis force, and …

Abstract The Kodaikanal Observatory has provided long-term synoptic observations of
chromospheric activities in the Ca ii K line (393.34 nm) since 1907. This article investigates …

Rossby waves arise in thin layers within fluid regions of stars and planets. These global
wave‐like patterns occur due to the variation in Coriolis forces with latitude. In the past …