Results 111 to 120 of about 8,171 (221)
The Effects of the Laurentide Ice Sheet on North American Climate during the Last Glacial Maximum [PDF]
A climate model, consisting of an atmospheric general circulation model coupled with a simple model of the oceanic mixed layer, is used to investigate the effects of the continental ice distribution of the last glacial maximum (LGM) on North American ...
Broccoli, A. J., Manabe, S.
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Glacial geomorphology of Newfoundland, Canada
We present a synthesis of glacial geomorphology comprising Newfoundland and the surrounding continental shelf. During the last glaciation, this region was encompassed by the Newfoundland Ice Cap that coalesced with the Laurentide Ice Sheet and extended ...
Sophie L. Norris +6 more
doaj +1 more source
Reconstructing the confluence zone between Laurentide and Cordilleran ice sheets along the Rocky Mountain Foothills, southwest Alberta [PDF]
Landform mapping near the Athabasca valley was fundamental to determining whether the Late Wisconsinan Laurentide and Cordilleran Ice Sheets (LIS, CIS) coalesced. In this paper we examine the detailed landform record using new LiDAR digital elevation and
Andriashek +61 more
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Glacial landforms of northwest Saskatchewan
A comprehensive map of glacial landforms is presented for the area of northwest Saskatchewan, Canada. Remote sensing of 1-arc (∼30 m resolution) Shuttle Radar Topography Mission digital elevation models over an area of approximately 15,000 km2 were used ...
Sophie L. Norris +2 more
doaj +1 more source
Pleistocene Montane Glaciations in the Mackenzie Mountains, Northwest Territories [PDF]
During the Pleistocene the Mackenzie Mountains were affected by a series of glaciations. Through all the glaciations a single pattern seems to have been repeated: a Cordilleran ice sheet formed to the west of the continental divide and montane valley ...
Duk-Rodkin, Alejandra, Hughes, Owen L.
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Understanding the evolution and timing of changes in ice sheet geometry and extent in Iceland during the Last Glacial Maximum (LGM) and subsequent deglaciation continues to stimulate much active research.
Finkel, Robert C. +4 more
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The Quaternary Geologic History of the Canadian Rocky Mountains [PDF]
The Canadian Rocky Mountains figured prominently during the glacial history of western Canada. First as a western limit or boundary to the Laurentide Ice Sheet, second as an eastern margin of the Cordilleran Ice Sheet, and finally as a centre of local ...
Bobrowsky, Peter, Rutter, Nathaniel W.
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Waxing/waning of the ice sheets and the associated change in thermohaline circulation have played an important role in global climate change since major continental ice sheets appeared in the northern hemisphere about 2.75 million years ago.
Masao eOhno +8 more
doaj +1 more source
Collapse of the North American ice saddle 14,500 years ago caused widespread cooling and reduced ocean overturning circulation [PDF]
Collapse of ice sheets can cause significant sea level rise and widespread climate change. We examine the climatic response to meltwater generated by the collapse of the Cordilleran-Laurentide ice saddle (North America) ~14.5 thousand years ago (ka ...
Andrea Burke +68 more
core +4 more sources
Paleo-ice sheet reconstructions constrained by GIA and geological data for use in climate models [PDF]
Paleo-ice sheet reconstructions are complicated by large uncertainties, particularly since it is usually only possible to infer thickness from indirect means such as the response of glacial isostatic adjustment (GIA).
Gowan, Evan +4 more
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