Nioghalvfjerdsbræ
glacier in Greenland
Nioghalvfjerdsbræ (79°00′N 025°00′W), sometimes referred to as "79 N Glacier", is a large glacier located in King Frederick VIII Land, northeastern Greenland. It drains an area of 103,314 km2 (39,890 sq mi) of the Greenland Ice Sheet with a flux (quantity of ice moved from the land to the sea) of 14.3 km3 (3.4 cu mi) per year, as measured for 1996. The glacier has two calving fronts where the glacier meets the ocean, separated by Hovgaard Island. In July 2020, the northern offshoot, the Spalte Glacier broke away from Nioghalvfjerdsbrae and completely disintegrated.
History
This glacier was named by the ill-fated Denmark expedition 1906-1908 because it lies at a latitude of 79°. The name had been meant to be temporary, but it acquired a new significance when it was deemed to be the place where expedition leader Ludvig Mylius-Erichsen, as well as cartographer Niels Peter Høeg Hagen, had died according to Jørgen Brønlund's diary.
Since 1990 Greenland's longest persistent supraglacial stream runs on the glacier, 73 km long in 2011, 71 km in 2017. The width of the stream remains relatively constant over most of the length ranging from 20 to 35 m.
In August 1997 the southern calving front retreated by 5 km with no significant upstream thinning.
Geography
The terminus of the glacier is in the Nioghalvfjerd Fjord, south of the Dijmphna Sound.
“Nioghalvfjerdsbræ” enters the record as glacier in Greenland. Crown Archives preserves that source wording while asking what Nioghalvfjerdsbræ, glacier and Greenland can confirm, complicate or overturn.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jul 3, 2026. The linked authority identifier is Q7039356. Authority coordinates are 79.000, -25.000. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1996, 2020, 1906 and 1908.
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This entry incorporates text from “Nioghalvfjerdsbræ” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.