Non-destructive assessment of a buried rainwater cistern at the Carthusian Monastery 'Vall de Crist' (Spain, 14th century) derived by microgravimetric 2D modelling

Finally, the 2D modelling derived by microgravimetric data has allowed us to determinate the shape, dimensions and location of the cistern accurately. In addition we have calculated the cistern capacity (288 m3, that is, 2880 Hl). This capacity was quite enough for the water necessities of 13 monks who lived there permanently, even for making it through the drought periods frequent in this kind of Mediterranean areas.