{{Short description|Glacier in northern Greenland}} {{Infobox glacier | name = Sif Glacier | other_name =''Sif Gletscher'' | image = | caption = | type = Valley glacier | location =Greenland | map = Greenland | map_caption = Location within Greenland | coordinates = {{coord|83|22|N|31|0|W|region:GL_dim:30000|format=dms|display=inline,title}} | mark = Blue_pog.svg | area = | length = | width = {{convert|2.5|km|abbr=on}} | thickness = | terminus = Tvillingesø | status = Retreating<ref>[http://hydrologie.org/redbooks/a058/05813.pdf The recent regimen of the ice cap margin in North Greenland]</ref> }}[[File:Operational Navigation Chart A-5, 3rd edition.jpg|thumb|267x267px|Map of Northern Ellesmere Island and far Northern Greenland.]]'''Sif Glacier''' ({{langx|da|Sifs Gletscher}}), is a glacier in northern Greenland.<ref name="mapc">{{cite web|url=https://mapcarta.com/19185516|title=Sif Glacier|work=Mapcarta|accessdate=30 May 2019}}</ref> Administratively it belongs to the Northeast Greenland National Park.

==History== The Sif Glacier was seen during aerial surveys by Lauge Koch and was named after Sif, the goddess representing Mother Earth in Norse mythology.

The glacier was first explored from the ground by the British Joint Services Expedition in 1969.<ref name="AR"/>

==Geography== The Sif Glacier is a slow-moving glacier located in Johannes V. Jensen Land, roughly in the middle of the Roosevelt Range. It flows in a WSW/ENE direction from the ice cap of the Mary Peary Peaks, bifurcating south of the Birgit Koch Peaks with one arm flowing roughly northwards and another southwards until their terminuses in the Northern and in the Southern Tvillingesø (Twin Lakes) respectively.<ref name="AR">[https://dce2.au.dk/Pub/arcticenvironment/reports/ArcticReport69.pdf Arctic Report, 121]</ref>

The northern branch of the Sif Glacier ends in a valley open to the north with its mouth in Constable Bay, where it formed prominent terminal moraines in the past.<ref name="EA">[https://www.researchgate.net/figure/The-terminal-moraine-in-Constable-Bugt-and-the-associated-reworked-organic-remains-in-the_fig9_284358687 The terminal moraine in Constable Bugt]</ref>

==See also== *List of glaciers in Greenland *Peary Land

==References== {{reflist}}

==External links== *[https://www.sciencedirect.com/science/article/abs/pii/S0277379110002398 Early to middle Holocene valley glaciations on northernmost Greenland The terminal moraine in Constable Bugt] *[http://jeffshea.org/greenland-stray-dog-west-expedition/ Greenland North Coast - Jeff Shea]

Category:Glaciers of Greenland Category:Roosevelt Range

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