A larger-scale horizontal cellular flow pattern on the Sun's surface. Transport by these flows helps arrange small magnetic elements into a solar magnetic network at cell boundaries. The observed pattern does not establish a unique thermal driving depth or an exact hierarchy of isolated steady eddies.
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Supergranulation refers to a pattern of large-scale convective flow observed on the surface of the Sun. These are essentially massive, "super" sized cells of plasma that are significantly larger than the regular convective cells known as granules, which are typically about 1,000 kilometers in size. Supergranules can range from approximately 20,000 to 30,000 kilometers across and are thought to have lifetimes of several days.