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Solar Activity

Known as: Activities, Solar, Activity, Solar, Solar Activities 
Any type of variation in the appearance of energy output of the sun. (NASA Thesaurus, 1994)
National Institutes of Health

Related topics

Related topics

4 relations
Cosmic RadiationSolar Energy

Narrower (2)

Solar FlaresSolar Particle Events

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2008
2008
Solar activity variations of nighttime ionospheric peak electron density: SOLAR ACTIVITY VARIATIONS OF NIGHTTIMENmF2
[1] Monthly median NmF2 (maximum electron density of the F2-layer) data at Okinawa, Yamagawa, Kokubunji, and Wakkanai have been… 
Review
2004
Review
2004
Long-Term Solar Activity: Direct and Indirect Study
The series of directly observed sunspot numbers is nearly 400 years long. We stress that the recently compiled group sunspot… 
2002
2002
The Equilibrium Paradigm in Clinical Cosmobiology
2000
2000
The relative importance of solar activity and anthropogenic influences on the ion composition, temperature, and associated neutrals of the middle atmosphere
The changes arising from variations in solar activity and human activities on atmospheric composition and thermal structure of… 
Highly Cited
1996
Highly Cited
1996
Resonance of about-weekly human heart rate rhythm with solar activity change.
In several human adults, certain solar activity rhythms may influence an about 7-day rhythm in heart rate. When no about-weekly… 
1992
1992
The periodic behaviour of solar activity : the near 155-day periodicity in sunspot areas
The historical record of daily sunspot areas (1878-1982), covering cycles 12 to 21, has been analysed, looking for the… 
1991
1991
The latitude belts of solar activity as a consequence of a boundary-layer dynamo
HELIOSEISMOLOGY has provided much insight into the Sun's activity, allowing measurements of the thickness of the solar convection… 
1982
1982
Stratospheric condensation nuclei variations may relate to solar activity
Observations of increases of stratospheric condensation nuclei suggest a photo-initiated sulphuric acid vapour formation process… 
Highly Cited
1979
Highly Cited
1979
Quasi-biennial variation of the solar neutrino flux and solar activity
THE observed flux of the solar neutrinos is lower by a factor of five than that theoretically estimated from the study of the… 
1978
1978
Relation between monthly variations of global ozone and solar activity
STUDIES of Dobson measurements have revealed long-term variations of total ozone of the order of 11 yr (refs 1–5). However, there… 
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