Nunatarsuaq
Encyclopedia
Nunatarsuaq is a nunatak
Nunatak
A nunatak is an exposed, often rocky element of a ridge, mountain, or peak not covered with ice or snow within an ice field or glacier. The term is typically used in areas where a permanent ice sheet is present...

  in the Qaasuitsup
Qaasuitsup
Qaasuitsup is a new municipality in Greenland, operational from 1 January 2009. As of January 2010 its population is 17,749. The administrative center of the municipality is in Ilulissat...

 municipality in northwestern Greenland
Greenland
Greenland is an autonomous country within the Kingdom of Denmark, located between the Arctic and Atlantic Oceans, east of the Canadian Arctic Archipelago. Though physiographically a part of the continent of North America, Greenland has been politically and culturally associated with Europe for...

.

Geography

Nunatarsuaq is one of several nunataks in the Melville Bay
Melville Bay
Melville Bay , is a large bay off the coast of northwestern Greenland. Located to the north of the Upernavik Archipelago, it opens to the south-west into Baffin Bay. Its Kalaallisut name, Qimusseriarsuaq, means "the great dog sledding place"....

 region of Greenland, where the Greenland ice sheet
Greenland ice sheet
The Greenland ice sheet is a vast body of ice covering , roughly 80% of the surface of Greenland. It is the second largest ice body in the world, after the Antarctic Ice Sheet. The ice sheet is almost long in a north-south direction, and its greatest width is at a latitude of 77°N, near its...

  drains into the bay alongside its entire length apart from an occasional nunatak. Nunatarsuaq is located on the mainland of Greenland in the northernmost part of Upernavik Archipelago
Upernavik Archipelago
Upernavik Archipelago is a vast archipelago of small islands in the Qaasuitsup municipality in northwestern Greenland, on the coast of northeastern Baffin Bay...

. To the north and east, Greenland icesheet drains into Melville Bay via unnamed, low-altitude glacier
Glacier
A glacier is a large persistent body of ice that forms where the accumulation of snow exceeds its ablation over many years, often centuries. At least 0.1 km² in area and 50 m thick, but often much larger, a glacier slowly deforms and flows due to stresses induced by its weight...

s.

Isolation as an island

In the event of glacial retreat, the nunatak will be isolated as an island. Unlike the available maps of Melville Bay, OpenStreetMap
OpenStreetMap
OpenStreetMap is a collaborative project to create a free editable map of the world. Two major driving forces behind the establishment and growth of OSM have been restrictions on use or availability of map information across much of the world and the advent of inexpensive portable GPS devices.The...

 maps, and the satellite photographs of Google Maps
Google Maps
Google Maps is a web mapping service application and technology provided by Google, free , that powers many map-based services, including the Google Maps website, Google Ride Finder, Google Transit, and maps embedded on third-party websites via the Google Maps API...

show the nunatak as already isolated, with fast sea-ice in place of the retreated icesheet.
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