Vatnajökull

Vatnajökull
Extensive ice field, southeastern Iceland.

It covers an area of 3,200 sq mi (8,400 sq km) and has an average ice thickness of more than 3,000 ft (900 m). It contains several mountains, including Hvannadalshnúkur (6,952 ft, or 2,119 m), the highest peak in Iceland. There are numerous active volcanoes throughout the ice field.

* * *

      extensive ice field, southeastern Iceland, covering an area of 3,200 sq mi (8,400 sq km) with an average ice thickness of more than 3,000 ft (900 m). Generally about 5,000 ft above sea level, in the Öræfajökull (Öraefa Glacier) in the south it rises to 6,952 ft (2,119 m) on Hvannadalshnúkur, the highest peak in Iceland. There are numerous active volcanoes throughout the ice field, the meltwaters of which feed hundreds of rivers, the largest of which are the Thjórsá, Skjálfandafljót, Jökulsá á Fjöllum, and Jökulsá á Fljótsdal, which further downstream takes on the name of Lagarfljót. Meltwater and moraine deposition at its southern end, aggravated by glacial bursts caused by hot springs under the ice, long prevented road construction on the narrow strip of land between the ice field and the ocean. Thus the coastal road encircling the island was not completed until the mid-1970s.

      Periodic eruptions of Grimsvötn, the largest volcano under the ice field, melt the surrounding ice and create a lake that occasionally breaks through its ice walls, causing catastrophic floods called jökulhlaup (“glacier runs”). During the eruptions of 1934 and 1938, the rate of jökulhlaup discharge reached 65,000 cu yd (50,000 cu m) per second. In the 20th century a jökulhlaup broke out of Vatnajökull roughly every 5 or 10 years.

* * *


Universalium. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Vatnajökull — Vatnajökull, Satellitenbild der NASA Höhe 2.110 m …   Deutsch Wikipedia

  • Vatnajökull — Vue aérienne du Vatnajökull. Latitude Longitude …   Wikipédia en Français

  • Vatnajokull — Vatnajökull Parc national du Vatnajökull Emplacement  Islande Coordonnées …   Wikipédia en Français

  • Vatnajökull — (English: Glacier of Rivers) (IPA2|ˈvahtnaˌjœːkʏtl ̥) is the largest glacier in Iceland. It is located in the south east of the island, covering more than 8% of the country. With a size of 8,100 km², it is the largest glacier in Europe in volume… …   Wikipedia

  • Vatnajökull —   [ vaːtnajœːkydl] der, Plateaugletscher im Südosten Islands, mit 8 300 km2 und einer Eisdicke von zum Teil über 1 000 m der größte Gletscher Europas; höchster Teil ist der Öræfajökull. Unter dem Vatnajökull liegen mehrere Vulkane, deren… …   Universal-Lexikon

  • Vatnajökull — Glaciar Vatnajökull …   Wikipedia Español

  • Vatnajökull — Sp Vãtnajokudlis Ap Vatnajökull L led. Islandijoje …   Pasaulio vietovardžiai. Internetinė duomenų bazė

  • Vatnajökull-Nationalpark — Öræfajökull und Jökulsárlón …   Deutsch Wikipedia

  • Vatnajökull National Park — Infobox protected area | name = Vatnajökull National Park caption = View east from the campsite in Skaftafell towards Öræfajökull. locator x = locator y = location = Southern Iceland nearest city = lat degrees = lat minutes = lat seconds = lat… …   Wikipedia

  • Vatnajökull — Extenso casquete glaciar, en el sudeste de Islandia. Cubre 8.400 km2 (3.200 mi2) de superficie y tiene 900 m (3.000 pies) de espesor promedio. Contiene varias montañas, entre las que se incluye Hvannadalshnúkur (2.119 m ó 6.952 pies), que… …   Enciclopedia Universal

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”