Fig. 2From: Heritage hydrology: a conceptual framework for understanding water fluxes and storage in built and rock-hewn heritageThe heritage hydrological settings covered in this paper: a Buildings, b ruins and free-standing walls, c rock-hewn sites carved into vertical rock slopes, d rock-hewn sites carved into horizontal outcrops, e natural rock slopes (for comparison). Blue arrows = liquid water, green dashed arrows = water vapourBack to article page