Comparison of the Rossby wave power spectrum computed from ∼6 years (CR 2089-2201) of pipeline data (left panel) and from the machine learning (right panel) for a depth of 0.696 Mm. The machine learning method was trained using 10 Carrington rotations (CR 2079-2088). The red line is the dispersion relation ω = −2Ω_ref/(m + 1) of sectoral Rossby waves, measured in a frame rotating at the equatorial rotation rate Ω_ref = 453.1 nHz.