Greenland ice sheet - Revision history

Jmdonev at 21:19, 22 October 2021

2021-10-22T21:19:09Z

← Older revision		Revision as of 21:19, 22 October 2021
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	Melting ice sheets contribute to [[rising sea level]]s. As ice sheets in Greenland melt, they raise the level of the [[ocean]], putting coastal habitats at risk of being flooded. Melting ice sheets also reduce the ocean’s [[salinity]]. [[Ton]]s of [[fresh water]] is added to the ocean every day by melting ice sheets. Large additions of freshwater change the ocean ecosystems. Organisms, such as [[coral]], depend on saltwater for survival. Some corals can’t adjust to a higher freshwater concentration habitat. [[Thermohaline circulation]], the ‘ocean conveyor belt’, would be radically altered by melting ice sheets. This circulation regulates nutrient rich water from polar regions throughout the world's oceans in a long, slow loop. Circulation is dependant on the relationship between water with different densities. Melting ice sheets would increase the amount of warm and freshwater in polar marine ecosystems.<ref name=RE2/> This would slow ‘deep water formation’, the development of cold, saline, nutrient rich water on which entire marine ecosystems depend.<ref name=RE2/> According to the United Nations, [[sea ice]] may decrease by 25% within the next century.<ref name=RE1/>		Melting ice sheets contribute to [[rising sea level]]s. As ice sheets in Greenland melt, they raise the level of the [[ocean]], putting coastal habitats at risk of being flooded. Melting ice sheets also reduce the ocean’s [[salinity]]. [[Ton]]s of [[fresh water]] is added to the ocean every day by melting ice sheets. Large additions of freshwater change the ocean ecosystems. Organisms, such as [[coral]], depend on saltwater for survival. Some corals can’t adjust to a higher freshwater concentration habitat. [[Thermohaline circulation]], the ‘ocean conveyor belt’, would be radically altered by melting ice sheets. This circulation regulates nutrient rich water from polar regions throughout the world's oceans in a long, slow loop. Circulation is dependant on the relationship between water with different densities. Melting ice sheets would increase the amount of warm and freshwater in polar marine ecosystems.<ref name=RE2/> This would slow ‘deep water formation’, the development of cold, saline, nutrient rich water on which entire marine ecosystems depend.<ref name=RE2/> According to the United Nations, [[sea ice]] may decrease by 25% within the next century.<ref name=RE1/>

	The video below is a lecture from Prof. David Archer, Department of Geophysical Sciences at the University of Chicago,<ref name = Archer>Prof. David Archer has graciously allowed the use of this and other videos in a private communication with Jason Donev.</ref> talking about the Greenland Ice Sheet:
	==For Further Reading==		==For Further Reading==
	*[[Ice]]		*[[Ice]]

Jmdonev at 21:17, 22 October 2021

2021-10-22T21:17:27Z

← Older revision		Revision as of 21:17, 22 October 2021
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	[[Category:Done 2018-12-10]]		[[Category:Done 2018-12-10]]
	[[Category: Ashley edit]]		[[Category: Ashley edit]]

	[[File:2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png\|thumb\|400px\|right\|Figure 1. Map of Greenland showing its ice coverage.<ref>wikicommons. (August 4, 2016). ‘’Greenland Ice Sheet’’ [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Greenland_ice_sheet_AMSL_thickness_map-en.svg/2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png</ref>]]		[[File:2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png\|thumb\|400px\|right\|Figure 1. Map of Greenland showing its ice coverage.<ref>wikicommons. (August 4, 2016). ‘’Greenland Ice Sheet’’ [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Greenland_ice_sheet_AMSL_thickness_map-en.svg/2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png</ref>]]

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	The video below is a lecture from Prof. David Archer, Department of Geophysical Sciences at the University of Chicago,<ref name = Archer>Prof. David Archer has graciously allowed the use of this and other videos in a private communication with Jason Donev.</ref> talking about the Greenland Ice Sheet:		The video below is a lecture from Prof. David Archer, Department of Geophysical Sciences at the University of Chicago,<ref name = Archer>Prof. David Archer has graciously allowed the use of this and other videos in a private communication with Jason Donev.</ref> talking about the Greenland Ice Sheet:

	~~<HTML5video width="800" height="450" autoplay="false" loop="true">Greenland_Ice_Sheet_Archer</HTML5video>~~

	==For Further Reading==		==For Further Reading==
	*[[Ice]]		*[[Ice]]

Jmdonev: 1 revision imported

2019-01-04T18:15:19Z

1 revision imported

← Older revision	Revision as of 18:15, 4 January 2019
(No difference)

2dev>Ashley.Sheardown at 19:06, 19 December 2018

2018-12-19T19:06:02Z

← Older revision		Revision as of 19:06, 19 December 2018
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	[[Category:Done ~~2017~~-07-01]]		[[Category:Done 2018-12-10]]
			[[Category: Ashley edit]]

	[[File:2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png\|thumb\|400px\|right\|Figure 1. Map of Greenland showing its ice coverage.<ref>wikicommons. (August 4, 2016). ‘’Greenland Ice Sheet’’ [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Greenland_ice_sheet_AMSL_thickness_map-en.svg/2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png</ref>]]		[[File:2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png\|thumb\|400px\|right\|Figure 1. Map of Greenland showing its ice coverage.<ref>wikicommons. (August 4, 2016). ‘’Greenland Ice Sheet’’ [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Greenland_ice_sheet_AMSL_thickness_map-en.svg/2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png</ref>]]

	<onlyinclude>The '''Greenland ice sheet''' is a large body of [[ice]] that covers approximately 80% of the surface of Greenland.<ref name=RE1>State of the Cryosphere: Ice Sheets \| National Snow and Ice Data Center", National Snow and Ice Data Center, 2016. [Online]. Available: https://nsidc.org/cryosphere/sotc/ice_sheets.html. [Accessed: 01- Jul- 2016].</ref> At 1.7 million square kilometres (3 times the size of the province of Alberta) it is the second largest ice body in the world. The Greenland ice sheet is however much smaller than the [[Antarctic ice sheet]].<ref name=RE1/> The ice sheet is 2,400 kilometres long.<ref name=RE1/></onlyinclude> These ice sheets are huge, and store a significant fraction of the world's [[fresh water]].		<onlyinclude>The '''Greenland ice sheet''' is a large body of [[ice]] that covers approximately 80% of the surface of Greenland.<ref name=RE1>State of the Cryosphere: Ice Sheets \| National Snow and Ice Data Center", National Snow and Ice Data Center, 2016. [Online]. Available: https://nsidc.org/cryosphere/sotc/ice_sheets.html. [Accessed: 01- Jul- 2016].</ref> At 1.7 million square kilometres (3 times the size of the province of Alberta) it is the second largest ice body in the world. The Greenland ice sheet is however much smaller than the [[Antarctic ice sheet]].<ref name=RE1/> The ice sheet is 2,400 kilometres long.<ref name=RE1/></onlyinclude> These ice sheets are huge, and store a significant fraction of the world's [[fresh water]].

	In the past the Earth has often had less ice and at times had even more ice. For example, during the [[~~Timescale~~ of the universe\|Pleistocene Ice Age]], almost one third of the Earth’s land was covered by glacial ice. Today, about one tenth of the Earth’s land is covered by [[glacier\|glacial ice]].<ref name=RE2/> Right now, the Antarctic and Greenland ice sheets combined contain more than 99% of the freshwater ice on Earth.<ref name=RE1/>		In the past the Earth has often had less ice and at times had even more ice. For example, during the [[Time scale of the universe\|Pleistocene Ice Age]], almost one third of the Earth’s land was covered by glacial ice. Today, about one tenth of the Earth’s land is covered by [[glacier\|glacial ice]].<ref name=RE2/> Right now, the Antarctic and Greenland ice sheets combined contain more than 99% of the freshwater ice on Earth.<ref name=RE1/>

	The Greenland ice sheet interacts more intensely with the ocean than the Antarctic ice sheet. The annual [[snow]] accumulation rate is more than double that of Antarctica.<ref name=RE2>"Facts on Ice Sheets \| National Snow and Ice Data Center", National Snow and Ice Data Center, 2016. [Online]. Available: https://nsidc.org/cryosphere/quickfacts/icesheets.html. [Accessed: 01- Jul- 2016].</ref> Glacial melt happens across about half of the Greenland ice sheet, but melting is much more isolated on the far western part of Antarctica. Greenland's ice shelves break up much faster than those surrounding Antarctica.<ref name=RE2/>		The Greenland ice sheet interacts more intensely with the ocean than the Antarctic ice sheet. The annual [[snow]] accumulation rate is more than double that of Antarctica.<ref name=RE2>"Facts on Ice Sheets \| National Snow and Ice Data Center", National Snow and Ice Data Center, 2016. [Online]. Available: https://nsidc.org/cryosphere/quickfacts/icesheets.html. [Accessed: 01- Jul- 2016].</ref> Glacial melt happens across about half of the Greenland ice sheet, but melting is much more isolated on the far western part of Antarctica. Greenland's ice shelves break up much faster than those surrounding Antarctica.<ref name=RE2/>
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	<HTML5video width="800" height="450" autoplay="false" loop="true">Greenland_Ice_Sheet_Archer</HTML5video>		<HTML5video width="800" height="450" autoplay="false" loop="true">Greenland_Ice_Sheet_Archer</HTML5video>

			==For Further Reading==
			*[[Ice]]
			*[[Ice sheet]]
			*[[Sea level change]]
			*[[Thermohaline circulation]]
			*[[Salinity]]
			*Or explore a [[Special:Random\|random page]]

	==References==		==References==
	{{reflist}}		{{reflist}}
			[[Category: Uploaded]]

Jmdonev: 1 revision imported

2017-08-29T01:47:15Z

1 revision imported

← Older revision	Revision as of 01:47, 29 August 2017
(No difference)

Jmdonev at 17:45, 28 July 2017

2017-07-28T17:45:39Z

← Older revision		Revision as of 17:45, 28 July 2017
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	[[Category:Done ~~2016~~-04-30]]		[[Category:Done 2017-07-01]]
	[[File:2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png\|thumb\|400px\|right\|Figure 1. Map of Greenland showing its ice coverage.<ref>wikicommons. (August 4, 2016). ‘’Greenland Ice Sheet’’ [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Greenland_ice_sheet_AMSL_thickness_map-en.svg/2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png</ref>]]		[[File:2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png\|thumb\|400px\|right\|Figure 1. Map of Greenland showing its ice coverage.<ref>wikicommons. (August 4, 2016). ‘’Greenland Ice Sheet’’ [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Greenland_ice_sheet_AMSL_thickness_map-en.svg/2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png</ref>]]

	<onlyinclude>The '''Greenland ice sheet''' is a large body of [[ice]] that covers approximately 80% of the surface of Greenland.<ref name=RE1>State of the Cryosphere: Ice Sheets \| National Snow and Ice Data Center", National Snow and Ice Data Center, 2016. [Online]. Available: https://nsidc.org/cryosphere/sotc/ice_sheets.html. [Accessed: 01- Jul- 2016].</ref> It is the second largest ice body in the world ~~and~~ is much smaller than the [[Antarctic ice sheet]]~~, 1.7 million square kilometres (3 times the size of Alberta)~~.<ref name=RE1/> The ice sheet is 2,400 kilometres long.<ref name=RE1/></onlyinclude> ~~While these~~ ice sheets are huge, the Earth has often had less ice and at times had even more ice. For example, during the [[Timescale of the universe\|Pleistocene Ice Age]], almost one third of the Earth’s land was covered by glacial ice. Today, about one tenth of the Earth’s land is covered by [[glacier\|glacial ice]].<ref name=RE2/> ~~Even today~~, the Antarctic and Greenland ice sheets combined contain more than 99% of the freshwater ice on Earth.<ref name=RE1/>		<onlyinclude>The '''Greenland ice sheet''' is a large body of [[ice]] that covers approximately 80% of the surface of Greenland.<ref name=RE1>State of the Cryosphere: Ice Sheets \| National Snow and Ice Data Center", National Snow and Ice Data Center, 2016. [Online]. Available: https://nsidc.org/cryosphere/sotc/ice_sheets.html. [Accessed: 01- Jul- 2016].</ref> At 1.7 million square kilometres (3 times the size of the province of Alberta) it is the second largest ice body in the world. The Greenland ice sheet is however much smaller than the [[Antarctic ice sheet]].<ref name=RE1/> The ice sheet is 2,400 kilometres long.<ref name=RE1/></onlyinclude> These ice sheets are huge, and store a significant fraction of the world's [[fresh water]].

			In the past the Earth has often had less ice and at times had even more ice. For example, during the [[Timescale of the universe\|Pleistocene Ice Age]], almost one third of the Earth’s land was covered by glacial ice. Today, about one tenth of the Earth’s land is covered by [[glacier\|glacial ice]].<ref name=RE2/> Right now, the Antarctic and Greenland ice sheets combined contain more than 99% of the freshwater ice on Earth.<ref name=RE1/>

	The Greenland ice sheet interacts more intensely with the ocean than the Antarctic ice sheet. The annual [[snow]] accumulation rate is more than double that of Antarctica.<ref name=RE2>"Facts on Ice Sheets \| National Snow and Ice Data Center", National Snow and Ice Data Center, 2016. [Online]. Available: https://nsidc.org/cryosphere/quickfacts/icesheets.html. [Accessed: 01- Jul- 2016].</ref> Glacial melt happens across about half of the Greenland ice sheet, but melting is much more isolated on the far western part of Antarctica. Greenland's ice shelves break up much faster than those surrounding Antarctica.<ref name=RE2/>		The Greenland ice sheet interacts more intensely with the ocean than the Antarctic ice sheet. The annual [[snow]] accumulation rate is more than double that of Antarctica.<ref name=RE2>"Facts on Ice Sheets \| National Snow and Ice Data Center", National Snow and Ice Data Center, 2016. [Online]. Available: https://nsidc.org/cryosphere/quickfacts/icesheets.html. [Accessed: 01- Jul- 2016].</ref> Glacial melt happens across about half of the Greenland ice sheet, but melting is much more isolated on the far western part of Antarctica. Greenland's ice shelves break up much faster than those surrounding Antarctica.<ref name=RE2/>
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	Greenland ice sheets caused the land under them to sink; mainly the ice has depressed the central area of Greenland.<ref name=RE2/> If the continental glaciers were to abruptly disappear, the landscape in Greenland would change drastically. Greenland, the largest island in the world, would become an [[archipelago]], which is a chain of small islands only connected by waterways.<ref name=RE2/>		Greenland ice sheets caused the land under them to sink; mainly the ice has depressed the central area of Greenland.<ref name=RE2/> If the continental glaciers were to abruptly disappear, the landscape in Greenland would change drastically. Greenland, the largest island in the world, would become an [[archipelago]], which is a chain of small islands only connected by waterways.<ref name=RE2/>

	Melting ice sheets contribute to [[rising sea level]]s. As ice sheets in Greenland melt, they raise the level of the [[ocean]], putting coastal habitats at risk of being flooded. Melting ice sheets also reduce the ocean’s [[salinity]]. [[Ton]]s of [[~~freshwater~~]] is added to the ocean every day by melting ice sheets. Large additions of freshwater change the ocean ecosystems. Organisms, such as [[coral]], depend on saltwater for survival. Some corals can’t adjust to a higher freshwater concentration habitat. [[Thermohaline circulation]], the ‘ocean conveyor belt’, would be radically altered by melting ice sheets. This circulation regulates nutrient rich water from polar regions throughout the world's oceans in a long, slow loop. Circulation is dependant on the relationship between water with different densities. Melting ice sheets would increase the amount of warm and freshwater in polar marine ecosystems.<ref name=RE2/> This would slow ‘deep water formation’, the development of cold, saline, nutrient rich water on which entire marine ecosystems depend.<ref name=RE2/> According to the United Nations, [[sea ice]] may decrease by 25% within the next century.<ref name=RE1/>		Melting ice sheets contribute to [[rising sea level]]s. As ice sheets in Greenland melt, they raise the level of the [[ocean]], putting coastal habitats at risk of being flooded. Melting ice sheets also reduce the ocean’s [[salinity]]. [[Ton]]s of [[fresh water]] is added to the ocean every day by melting ice sheets. Large additions of freshwater change the ocean ecosystems. Organisms, such as [[coral]], depend on saltwater for survival. Some corals can’t adjust to a higher freshwater concentration habitat. [[Thermohaline circulation]], the ‘ocean conveyor belt’, would be radically altered by melting ice sheets. This circulation regulates nutrient rich water from polar regions throughout the world's oceans in a long, slow loop. Circulation is dependant on the relationship between water with different densities. Melting ice sheets would increase the amount of warm and freshwater in polar marine ecosystems.<ref name=RE2/> This would slow ‘deep water formation’, the development of cold, saline, nutrient rich water on which entire marine ecosystems depend.<ref name=RE2/> According to the United Nations, [[sea ice]] may decrease by 25% within the next century.<ref name=RE1/>

	The video below is a lecture from Prof. David Archer, Department of Geophysical Sciences at the University of Chicago,<ref name = Archer>Prof. David Archer has graciously allowed the use of this and other videos in a private communication with Jason Donev.</ref> talking about the Greenland Ice Sheet:		The video below is a lecture from Prof. David Archer, Department of Geophysical Sciences at the University of Chicago,<ref name = Archer>Prof. David Archer has graciously allowed the use of this and other videos in a private communication with Jason Donev.</ref> talking about the Greenland Ice Sheet:

	<HTML5video width="800" height="450" autoplay="false" loop="true">Greenland_Ice_Sheet_Archer</HTML5video>		<HTML5video width="800" height="450" autoplay="false" loop="true">Greenland_Ice_Sheet_Archer</HTML5video>



	==References==		==References==
	{{reflist}}		{{reflist}}

Jmdonev: 1 revision imported: From the summer

2016-09-17T22:29:42Z

1 revision imported: From the summer

← Older revision	Revision as of 22:29, 17 September 2016
(No difference)

Jmdonev at 21:02, 17 August 2016

2016-08-17T21:02:50Z

New page

[[Category:Done 2016-04-30]]
[[File:2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png|thumb|400px|right|Figure 1. Map of Greenland showing its ice coverage.<ref>wikicommons. (August 4, 2016). ‘’Greenland Ice Sheet’’ [Online]. Available: https://upload.wikimedia.org/wikipedia/commons/thumb/b/b5/Greenland_ice_sheet_AMSL_thickness_map-en.svg/2000px-Greenland_ice_sheet_AMSL_thickness_map-en.svg.png</ref>]]

<onlyinclude>The '''Greenland ice sheet''' is a large body of [[ice]] that covers approximately 80% of the surface of Greenland.<ref name=RE1>State of the Cryosphere: Ice Sheets | National Snow and Ice Data Center", National Snow and Ice Data Center, 2016. [Online]. Available: https://nsidc.org/cryosphere/sotc/ice_sheets.html. [Accessed: 01- Jul- 2016].</ref> It is the second largest ice body in the world and is much smaller than the [[Antarctic ice sheet]], 1.7 million square kilometres (3 times the size of Alberta).<ref name=RE1/> The ice sheet is 2,400 kilometres long.<ref name=RE1/></onlyinclude> While these ice sheets are huge, the Earth has often had less ice and at times had even more ice. For example, during the [[Timescale of the universe|Pleistocene Ice Age]], almost one third of the Earth’s land was covered by glacial ice. Today, about one tenth of the Earth’s land is covered by [[glacier|glacial ice]].<ref name=RE2/> Even today, the Antarctic and Greenland ice sheets combined contain more than 99% of the freshwater ice on Earth.<ref name=RE1/>

The Greenland ice sheet interacts more intensely with the ocean than the Antarctic ice sheet. The annual [[snow]] accumulation rate is more than double that of Antarctica.<ref name=RE2>"Facts on Ice Sheets | National Snow and Ice Data Center", National Snow and Ice Data Center, 2016. [Online]. Available: https://nsidc.org/cryosphere/quickfacts/icesheets.html. [Accessed: 01- Jul- 2016].</ref> Glacial melt happens across about half of the Greenland ice sheet, but melting is much more isolated on the far western part of Antarctica. Greenland's ice shelves break up much faster than those surrounding Antarctica.<ref name=RE2/>

==Greenland Ice Sheet and Climate Change==

Greenland ice sheets caused the land under them to sink; mainly the ice has depressed the central area of Greenland.<ref name=RE2/> If the continental glaciers were to abruptly disappear, the landscape in Greenland would change drastically. Greenland, the largest island in the world, would become an [[archipelago]], which is a chain of small islands only connected by waterways.<ref name=RE2/>

Melting ice sheets contribute to [[rising sea level]]s. As ice sheets in Greenland melt, they raise the level of the [[ocean]], putting coastal habitats at risk of being flooded. Melting ice sheets also reduce the ocean’s [[salinity]]. [[Ton]]s of [[freshwater]] is added to the ocean every day by melting ice sheets. Large additions of freshwater change the ocean ecosystems. Organisms, such as [[coral]], depend on saltwater for survival. Some corals can’t adjust to a higher freshwater concentration habitat. [[Thermohaline circulation]], the ‘ocean conveyor belt’, would be radically altered by melting ice sheets. This circulation regulates nutrient rich water from polar regions throughout the world's oceans in a long, slow loop. Circulation is dependant on the relationship between water with different densities. Melting ice sheets would increase the amount of warm and freshwater in polar marine ecosystems.<ref name=RE2/> This would slow ‘deep water formation’, the development of cold, saline, nutrient rich water on which entire marine ecosystems depend.<ref name=RE2/> According to the United Nations, [[sea ice]] may decrease by 25% within the next century.<ref name=RE1/>

The video below is a lecture from Prof. David Archer, Department of Geophysical Sciences at the University of Chicago,<ref name = Archer>Prof. David Archer has graciously allowed the use of this and other videos in a private communication with Jason Donev.</ref> talking about the Greenland Ice Sheet:
<HTML5video width="800" height="450" autoplay="false" loop="true">Greenland_Ice_Sheet_Archer</HTML5video>

==References==
{{reflist}}