gcmd_keyword : SUN-EARTH INTERACTIONS>SUNSPOT ACTIVITY

Relationships

parent	CLIMATE INDICATORS>SUN-EARTH INTERACTIONS
publications
gcmd_keywords	SUNSPOT ACTIVITY>LENGTH OF THE SOLAR CYCLE SUNSPOT ACTIVITY>SOLAR FLUX

Fields

definition	An area seen as a dark spot on the PHOTOSPHERE of the sun. Sunspots are concentrations of magnetic flux, typically occurring in bipolar clusters or groups. They appear dark because they are cooler than the surrounding photosphere. Sunspots are classified as to their group characteristics (called the Zurich Sunspot Classification; older sunspot counting schemes may have used the Wolf Sunspot Number classification). Satellite observations of the sun (notably by the ACRIM and ERBE sensors) have demonstrated a correlation between sunspot luminosity changes and sunspot numbers - a possible influencing factor in Earth's climate dynamics.
identifier	3429bc72-0780-44c8-9743-92f84118279d
label	SUNSPOT ACTIVITY
parent_identifier	3d64c047-c4fb-4981-bc91-d5dbc22337de
GCMD Metadata	3429bc72-0780-44c8-9743-92f84118279d
Ancestors	SUNSPOT ACTIVITY < SUN-EARTH INTERACTIONS < CLIMATE INDICATORS < EARTH SCIENCE < Science Keywords