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It is possible to numerically verify the shear created by the Hadley cell by applying the thermal "wind" equation for water which varies in temperature,
Where α is the thermal coefficient of expansion of water and Ω is the rotation rate of the tank. By taking the temperature difference between the two bottom sensors (approximately 2K over 8cm), we may obtain a value for ΔT, which may be substituted into the thermal wind equation to calculate the expected shear, 2.45 m/s per meter. As the depth of the water in the tank was 9 cm, the speed of the rotation of the dots observed on the top of the water would be expected to be approximately 0.22 m/s.
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