5042 x 3361 px | 42,7 x 28,5 cm | 16,8 x 11,2 inches | 300dpi
Date de la prise de vue:
2005
Informations supplémentaires:
The most famous are the immense Jökulhlaup released from the Vatnajökull Ice Cap in Iceland. It is not by chance that the term Jökulhlaup comes from the Icelandic, as the south of Iceland has very often been victim to such catastrophes. This was the case when in 1996, the volcano under the Grímsvötn lakes belonging to the Vatnajökull glacier erupted, and the river Skeiðará flooded the land in front of Skaftafell National Park. The jökulhlaup reached a flow rate of 45, 000 cubic meters per second, and destroyed parts of the Hringvegur (road no. 1). After the flooding some icebergs 10 metres (33 ft) high could be seen on the banks of the river where the glacier run had left them behind (see also Mýrdalsjökull). The peak water release from a lake that develops around the Grimsvotn Volcanic Crater in the center of the Vatnajökull ice cap generates flows that exceed the volume of the Mississippi River. The outbursts have occurred in 1954, 1960, 1965, 1972, 1976, 1982, 1983, 1986, 1991 and 1996. In 1996, the eruption melted 3 cubic kilometres (0.72 cu mi) of ice and yielded an outburst of 6, 000 cubic metres (7, 800 cu yd) per second at peak flow.
