"Solar Activity" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
Any type of variation in the appearance of energy output of the sun. (NASA Thesaurus, 1994)
This graph shows the total number of publications written about "Solar Activity" by people in this website by year, and whether "Solar Activity" was a major or minor topic of these publications.
To see the data from this visualization as text, click here.