is firn. The minimum altitude that firn accumulates on a glacier is called the firn limit, firn line or snowline. Antarctic Firn Daniel Bruun Firn Dreyer...

The East Northwall Firn was a glacier on Mount Carstensz in the Sudirman Range on the island of New Guinea in Central Papua province, Indonesia. Situated...

head of a glacier. The minimum altitude that firn accumulates on a glacier is called the firn limit, firn line or snowline. There are four main mechanisms...

crevasse that forms where moving glacier ice separates from the stagnant ice or firn above. It is often a serious obstacle for mountaineers, who sometimes abbreviate...

The West Northwall Firn was a glacial body on Mount Carstensz in the Sudirman Range on the island of New Guinea in Central Papua province, Indonesia. The...

Orkney Northwall Firn, a glacier now split in two, East Northwall Firn, a glacier in Papua province, Indonesia West Northwall Firn, a glacier in Papua...

layer presses on lower layers, making them denser until they turn into firn. Firn is not dense enough to prevent air from escaping; but at a density of...

Col route of Mt. Everest. Serac, Russell Glacier in Greenland Seracs in firn at 3,050 metres (10,000 feet) on the Winthrop Glacier of Mount Rainier in...

southeast the peninsula is attached to the mainland and its ice cap. The Dreyer Firn is located in the southwest, near the Saint George Fjord's shore. There are...

freshly fallen powder snow, creating an avalanche hazard on steep slopes. Firn – Firn is dense, granular snow, which has been in place for multiple years but...