I don't know. Consider that a given mass of water would undergo the same gravitational force regardless of whether it is colder/denser/smaller/lower or whether

I don't know. Consider that a given mass of water would undergo the same gravitational force regardless of whether it is colder/denser/smaller/lower or whether it is hotter/less-dense/larger/higher. Also, as an analogy, consider how much the tidal range [0] varies between areas of the ocean which are absolutely connected as a single body of water. Note particularly the contrast between tides in the Mediterranean and the Atlantic Ocean at large on each side of the Iberian Peninsula, even though they are totally connected through the Straight of Gibraltar. [0] https://en.wikipedia.org/wiki/Tidal_range https://en.wikipedia.org/wiki/Tidal_range