Solar Mean Magnetic Field (SMMF) 

About Solar Mean Magnetic Field

What is SMMF?

• It is a measure of the average magnetic field of the Sun over a period.

How SMMF is analysed?

• It is by observing the Sun’s magnetic field at its poles, which are areas of the Sun that are less affected by the Sun’s rotation than other areas.
• These measurements can be used to estimate the strength and direction of the solar mean magnetic field, and to track changes in the field over time.

Significance of SMMF

• It is important for studying the Sun’s magnetic activity, as it provides insights into various solar phenomena, including sunspots, solar flares, and coronal mass ejections (CMEs).
  • Sunspots are dark areas on the Sun’s surface associated with strong magnetic fields, while solar flares and CMEs are explosive events driven by magnetic energy release.
• Understanding the SMMF and its variations is crucial for space weather forecasting and
  predicting the impact of solar activity on Earth. Strong magnetic fields associated with
  solar flares and CMEs can cause geomagnetic storms and disrupt satellite
  communications, power grids, and other technological systems.