| Global rotation inversions using medium-degree modes probe the changing dynamics of the convection zone. By subtracting the temporal mean rotation profile, we reveal the pattern of east-west flows that migrates from mid-latitudes to the equator, as well as the larger-amplitude variations at higher latitudes. The plot is based on 1995-2003 data from GONG and MDI global rotation inversions after subtraction of a temporal mean at each location, fit with an 11 year and an 11/3 year sinusoid and extended to complete the 11-year solar cycle. |
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| Movie showing Solar rotation after subtraction of a temporal mean, covering the period May 1995 to October 2003, from combined MDI and GONG data. The color table in the outer portion has red for fast, yellow for neutral, green for slow, while the inner one uses red for fast, white for neutral and blue for slow. Both tables saturate at +/- 2 nHz. The curve shows the base of the convection zone at 0.71 RSun. A shorter version is also available. | |