Here is a quote from NASA's SDO opperations release:
"SDO will study how solar activity is created and how space weather results from that activity. Measurements of the Sun’s interior, magnetic field, the hot plasma of the solar corona, and the
irradiance will help meet the objectives of the SDO mission.
SDO will improve our understanding of the physics behind the activity displayed by the Sun’s atmosphere, which drives space weather in the heliosphere, the region of the Sun’s influence, and in
planetary environments. SDO will determine how the Sun’s magnetic field is generated, structured, and converted into violent solar events that cause space weather. SDO observations start in the interior of the Sun where the magnetic field that is the driver for space weather is created. Next, SDO will observe the solar surface to directly measure the magnetic field and the solar atmosphere to understand how magnetic energy is linked to the interior and converted to space weather causing events. Finally, SDO will measure the extreme ultraviolet irradiance of the Sun that is a key driver to the structure and composition of the Earth’s upper atmosphere."