SKEIDARARJ. W

 

Event description

 

This extraordinary j�kulhlaup was preceeded and indirectly triggered by an eruption. The meltwater accumulated in the Gr�msv�tn subglacial lake until it drained into the catastrophic j�kulhlaup. Discharge increased linearly with time and reached a peak value of 40.000 m³/s in 16 hours and dropped to zero 27 hours later. The total volume of the outburst flood was estimated at 3.6 km³.

 

Damage

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Data source

 

- http://www.nimbus.it/glaciorisk/Glacier_view.asp?IdGlacier=3963&Vista=rischio&Paese=&IdTipoRischio=8

 

Remarks

 

After the eruption, but before the onset of the j�kulhlaup, a datalogger that recorded barometric pressure and temperature was set up on the ice-shelf of lake Gr�msv�tn. The subsidence of the lake was recorded and a hydrograph established.