* a SOHO/MDI Dopplergram showing supergranular speed pattern* NASA: The Sun Does The Wave* Information at Nature.com* Michel Rieutord and François Rincon, "The Sun’s Supergranulation", Living Rev.
==References====External links==* a SOHO/MDI Dopplergram showing supergranular speed pattern* NASA: The Sun Does The Wave* Information at Nature.com* Michel Rieutord and François Rincon, "The Sun’s Supergranulation", Living Rev.