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Mainland Northern Europe’s roof is Norway’s Galdhøpiggen

The Scandinavian Mountains, or Scandes, run the length of the peninsula: western walls plunge into North Sea and Norwegian Sea fjords, while the chain eases northeast toward Finland and forms the Norway–Sweden border for hundreds of kilometres. Galdhøpiggen at 2,469 metres is mainland Northern Europe’s highest summit.

Sweden’s Kebnekaise reaches 2,096.8 metres, and a slope of Halti is Finland’s highest ground. Swedes colloquially call the range Fjällen, the Fells, and both Swedish and Norwegian use Kölen or Kjølen, the Keel, alongside the formal Skanderna. The loftiest massifs cluster between Stavanger and Trondheim, where much of the land exceeds 1,000 metres and some peaks top 2,000, before heights sag near Trondheim Fjord.

To the east the Swedish förfjäll, or fore-fell, forms a gentler fringe about 650 kilometres long that mostly stays below 1,000 metres. The Scandinavian montane birch forest and grasslands ecoregion follows the range closely.

Norway’s coast has a maritime climate, while Sweden, in the mountains’ rain shadow, is far more continental. A high latitude combined with Atlantic moisture has fed many ice fields and glaciers. Scattered permafrost appears on windswept, thinly snowed sites where the mean annual air temperature is about minus 1.5°C, becoming widespread near minus 3.5°C and continuous near minus 6°C. The lower limit of widespread permafrost falls from 1,700 metres in western southern Norway to 1,100 metres around Kebnekaise.

Glaciers follow the reverse pattern, because they depend on snowfall rather than cold alone: the snow line climbs from about 1,500 metres at Jostefonn in the wet west to 2,100 metres in Jotunheimen farther east. Above the Tarfala research station, at 1,540 metres, the European PACE project drilled a 100-metre borehole and found rock still at minus 2.75°C at the bottom. The measured temperature gradient implies frozen ground some 330 metres thick, evidence that continuous permafrost reaches all the way to Kebnekaise’s summit.

Source: Scandinavian Mountains

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