In Iceland, floods are primarily of three different origins (Snorra-
son et al., 2012): (
i) meteorological floods induced by rain and which are often combined with
melting of snow and ice, (ii) floods due to ice formation and release within river channels, and
(iii) glacier outburst floods which originate in marginal lakes, formed in glacier dammed side
valleys, or subglacial lakes, formed as a result
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