Abstract Interplanetary Coronal Mass Ejections (ICMEs), their possible shocks and sheaths,
and co-rotating interaction regions (CIRs) are the primary large-scale heliospheric structures …

Space weather describes the way in which the Sun, and conditions in space more generally,
impact human activity and technology both in space and on the ground. It is now well …

Abstract In October 2017, the Scientific Committee on Solar-Terrestrial Physics (SCOSTEP)
Bureau established a committee for the design of SCOSTEP's Next Scientific Programme …

We report on a study that compares the properties of magnetic clouds (MCs) during the first
73 months of solar cycles 23 and 24 in order to understand the weak geomagnetic activity in …

Extreme space weather events are low‐frequency, high‐risk phenomena. Estimating their
rates of occurrence, as well as their associated uncertainties, is difficult. In this study, we …

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 …

Using a time series of geomagnetic storm events between 1957 and 2019, obtained by
selecting storms where− 50 nT, we have analyzed the probability of occurrence of moderate …

PLASMA AND MAGNETIC FIELD CHARACTERISTICS OF SOLAR CORONAL MASS
EJECTIONS IN RELATION TO GEOMAGNETIC STORM INTENSITY AND VARIABILITY …

While the Sun is generally more eruptive during its maximum and declining phases,
observational evidence shows certain cases of powerful solar eruptions during the quiet …

Recently, a rapid increase in radiocarbon (14C) was observed in Japanese tree rings at AD
774/775. Various explanations for the anomaly have been offered, such as a supernova, a γ …