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astro-ph.SR2020
Calibration of the Sunspot and Group Numbers Using the Waldmeier Effect
Leif Svalgaard, David H. Hathaway
The Waldmeier Effect is the observation that the rise time of a sunspot cycle varies inversely with the cycle amplitude: strong cycles rise to their maximum faster than weak cycles…
astro-ph.SR2020★ 34 cited
Hydrodynamic Properties of the Sun's Giant Cellular Flows
David H. Hathaway, Lisa A. Upton
Measurements of the large cellular flows on the Sun were made by local correlation tracking of supergranules seen in full-disk Doppler images obtained by the HMI instrument on the…