What is a solar electromagnetic storm?

摘要

In recent years, the expression “solar storm” has become popular in China, but many Chinese do not realize that solar storms are very different from storms on Earth. As solar physicists and members of the Regional Warning Center China (RWCC) of International Space Environment Services (ISES), we frequently encounter the question “What is a solar storm?” In order to properly respond to the customers of the RWCC, we investigated the historical evolution of the term “solar storm.”