Monday, July 8, 2019

Iceland: Vatnajökull National Park - dynamic nature of fire and ice

This iconic volcanic region covers an area of over 1,400,000 ha, nearly 14% of Iceland's territory. It numbers ten central volcanoes, eight of which are subglacial. Two of these are among the most active in Iceland. The interaction between volcanoes and the rifts that underlie the Vatnajökull ice cap takes many forms, the most spectacular of which is the jökulhlaup – a sudden flood caused by the breach of the margin of a glacier during an eruption. This recurrent phenomenon has led to the emergence of unique sandur plains, river systems and rapidly evolving canyons. Volcanic areas are home to endemic groundwater fauna that has survived the Ice Age. Source: whc.unesco.org
Inscribed :2019


This card shows Dettifoss Waterfalls. Dettifoss waterfalls is reputed to be the most powerful waterfall in Europe. Dettifoss is situated on the Jökulsá á Fjöllum river, which flows from the Vatnajökull glacier and collects water from a large area in Northeast Iceland. The sediment-rich runoff colors the water a greyish white. The falls are 100 metres (330 ft) wide and have a drop of 44 metres (144 ft) down to the Jökulsárgljúfur canyon. It is the largest waterfall in Iceland in terms of volume discharge, having an average water flow of 193 m³/s.

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