Concept information
Preferred term
SOLAR ACTIVITY
Definition
- Any change in the sun's appearance or behavior. The sun's activity is described as being very low, low, moderate, high or very high. Solar activity changes over a period of, on average, 11 years. At solar maximum, the solar activity is high and so too the Extreme Ultraviolet (EUV) radiation output which affects the ionosphere. At solar minimum, the opposite is true. (en)
Broader concept
Narrower concepts
- CORONA (en)
- CORONA HOLES (en)
- CORONAL MASS EJECTIONS (en)
- COSMIC RAYS (en)
- SOLAR ACTIVE REGIONS (en)
- SOLAR FLARES (en)
- SOLAR IMAGERY (en)
- SOLAR IRRADIANCE (en)
- SOLAR OSCILLATIONS (en)
- SOLAR PROMINENCES/SOLAR FILAMENTS (en)
- SOLAR RADIO WAVE EMISSIONS (en)
- SOLAR SYNOPTIC MAPS (en)
- SOLAR ULTRAVIOLET EMISSIONS (en)
- SOLAR VELOCITY FIELDS (en)
- SOLAR X-RAY EMISSIONS (en)
- SUNSPOTS (en)
URI
https://gcmd.earthdata.nasa.gov/kms/concept/2e83362e-d8f8-4bca-83fd-bae360ebe94b
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