What Does CIR Stand For?
CIR stands for Corotating Interaction Region
CIR, or Corotating Interaction Region, refers to a large-scale structure in the solar wind formed by the interaction between fast and slow solar wind streams. These regions are characterized by enhanced magnetic field strength and density, resulting from the compression of slower solar wind by faster streams that overtake them. CIRs can influence space weather by generating shock waves and driving various solar wind phenomena, impacting satellite operations and communication systems on Earth.
Added on 14th April 2008 | Last edited on 17th June 2025 | Edit Acronym