The gradients seem less marked over the oceans where a lot of gravity field information has already been determined by spacecraft that measure sea-surface topography.

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When we see a notable change in the gravity field, we can sync up this change with surface topography features such as craters, rilles or mountains.

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Topography: configuration of a surface including its relief and the position of its natural and man-made features.

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By restaging compositions from celebrated paintings (the majority of them in the permanent collection of the local Aberdeen Art Gallery), her work moves beyond the surface struggle and the issues around the changing topography.

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So they procured massively detailed topography maps from NASA, data that covers 99% of the surface of the Earth, and imported it into their mountain-making software.

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