Concept information
TERME PRÉFÉRENTIEL
SOLAR ACTIVITY
DÉFINITION
- 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.
CONCEPT GÉNÉRIQUE
CONCEPTS SPÉCIFIQUES
- CORONA
- CORONA HOLES
- CORONAL MASS EJECTIONS
- COSMIC RAYS
- SOLAR ACTIVE REGIONS
- SOLAR FLARES
- SOLAR IMAGERY
- SOLAR IRRADIANCE
- SOLAR OSCILLATIONS
- SOLAR PROMINENCES/SOLAR FILAMENTS
- SOLAR RADIO WAVE EMISSIONS
- SOLAR SYNOPTIC MAPS
- SOLAR ULTRAVIOLET EMISSIONS
- SOLAR VELOCITY FIELDS
- SOLAR X-RAY EMISSIONS
- SUNSPOTS
URI
https://gcmd.earthdata.nasa.gov/kms/concept/2e83362e-d8f8-4bca-83fd-bae360ebe94b
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