Figure 4. Causes of GLOFs. Part (A) shows causes (C1) to (C3), which are relevant for all glacial lake subtypes (see “Formation and Evolution of Glacial Lakes”); part (B) shows a longitudinal section of the dam and causes (C4) to (C7), which are relevant only for specific glacial lake subtypes (see Table 3). Based on Clague and Evans (2000), Costa and Schuster (1988), Emmer and Cochachin (2013), Grabs and Hanisch (1993), Mergili and Schneider (2011), Richardson and Reynolds (2000a), and Zapata (2002).