Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Information Forms (hierarchy name)
5. information forms (objects)
6. document genres
7. [documents by form]
8. graphic document genres
9. charts (graphic documents)

Anotations

Scope note:

Charts that plot the solar azimuth angle, solar altitude angle or solar time. These are used for a variety of purposes including navigation, orientation, or architectural planning. Common solar charts employ an artificial concentric scale of equidistant intervals to calculate solar geometric parameters.