part of Skaftárjökull and Tungnárjökull, where floodwater could burst through the surface.
Background
Floods in Skaftá are sourced from two ice cauldrons, formed due to persistent geothermal activity beneath Vatnajökull ice-cap. On average, the cauldrons drain every two years, producing floods of up to 1,500 cubic metres
per second. When the interval between floods is short the flood tends
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