2021-02-17

Jökulsárlón – Glacier Lagoon │ Iceland Landscape from Air

Documenting Iceland

by: Rafn Sig,-

English below:

Jökulsárlón er stórt jökullón við rætur Breiðamerkurjökuls í suðurhluta Vatnajökulsþjóðgarðs. Lónið er friðlýst sem hluti af Vatnajökulsþjóðgarði m.a. með það að markmiði að “vernda landslag, lífríki, jarðmyndanir og menningarminjar svæðisins og gefa almenningi kost á að kynnast og njóta náttúru þess og sögu.” Úr lóninu rennur Jökulsá á Breiðamerkursandi.

Lónið stækkar eftir því sem Breiðamerkurjökull hopar, en það er nú um 25 km2. Dýpt lónsins mældis 284 metrar árið 2009[2] en dýpt rennunnar sem Breiðamerkurjökull liggur í teygir sig um 300 metra undir sjávarmál samkvæmt íssjármælingum. Jökulsárlón er dýpsta vatn landsins.

Jökulsárlón er ungt lón en það fór að myndast eftir að Breiðamerkurjökull tók að hopa eftir 1933. Lónið myndast í djúpri lægð sem jökullinn gróf við framrás sína á litlu ísöld, en þá kólnaði loftslag, ís byggðist upp hraðar og jöklar skriðu fram á láglendi. Breiðamerkurjökull gróf 25 kílómetra langa rennu sem nær 200-300 metra niður fyrir sjávarmál frá þar sem Jökulsárlón er nú og upp í átt að Esjufjöllum, undir jökli. Vegna loftslagshlýnunar bráðnar nú Breiðamerkurjökull meira en sem nemur þeim ís er bætist við hann árlega og minnkar þar af leiðandi stöðugt. Samtímis stækkar lónið, en spár gera ráð fyrir því að undir lok 21. aldar muni jökullinn hafa hopað svo að Jökulsárlón nái að rótum Esjufjalla

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Jökulsárlón literally “glacial river lagoon”) is a large glacial lake in southeast Iceland, on the edge of Vatnajökull National Park. Situated at the head of the Breiðamerkurjökull glacier, it developed into a lake after the glacier started receding from the edge of the Atlantic Ocean. The lake has grown since then at varying rates because of melting of the glaciers. It is now 1.5 kilometres (0.93 mi) away from the ocean’s edge and covers an area of about 18 km2 (6.9 sq mi). It recently became the . . . All info at: https://www.patreon.com/RafnSig

 

 

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