Play Video
1
Our Melting Polar Regions: Where Life on Earth is Changing
Our Melting Polar Regions: Where Life on Earth is Changing
::2011/10/13::
Play Video
2
FROZEN - A Science On a Sphere Movie about Earth
FROZEN - A Science On a Sphere Movie about Earth's Polar Regions
::2013/12/18::
Play Video
3
Mechanism of The Seasons
Mechanism of The Seasons
::2011/03/15::
Play Video
4
Cool Stories of Earth
Cool Stories of Earth's Coldest Regions: Polar Researcher Interviews
::2014/04/14::
Play Video
5
Professional Development for Earth Science in the Polar Regions
Professional Development for Earth Science in the Polar Regions
::2012/07/31::
Play Video
6
About the polar regions of the earth
About the polar regions of the earth
::2013/12/22::
Play Video
7
Richard Alley on ice sheets in the polar regions
Richard Alley on ice sheets in the polar regions
::2012/11/13::
Play Video
8
Professional Development for Earth Science in the Polar Regions II
Professional Development for Earth Science in the Polar Regions II
::2012/08/08::
Play Video
9
Science for Kids - Artic and Antartic Regions
Science for Kids - Artic and Antartic Regions
::2014/05/31::
Play Video
10
Polar Regions under Climate Change - Peter Lemke
Polar Regions under Climate Change - Peter Lemke
::2013/11/12::
Play Video
11
Global Warming and the Polar Regions: Signs of Human Impact - Perspectives on Ocean Science
Global Warming and the Polar Regions: Signs of Human Impact - Perspectives on Ocean Science
::2008/01/10::
Play Video
12
The Pole Shift and Earth Crust Displacement Theory
The Pole Shift and Earth Crust Displacement Theory
::2014/06/03::
Play Video
13
Space Weather and Earth
Space Weather and Earth's Aurora
::2013/05/20::
Play Video
14
Life in the Polar Regions
Life in the Polar Regions
::2009/04/16::
Play Video
15
Polar bears search for food - David Attenborough  - BBC wildlife
Polar bears search for food - David Attenborough - BBC wildlife
::2008/04/04::
Play Video
16
Different Environments - Part 2, Tundra, Polar Regions, Grasslands, Wetlands, Deserts
Different Environments - Part 2, Tundra, Polar Regions, Grasslands, Wetlands, Deserts
::2011/07/25::
Play Video
17
Global Warming and the Polar Regions: Signs of Human Impact - Perspectives on Ocean Science
Global Warming and the Polar Regions: Signs of Human Impact - Perspectives on Ocean Science
::2014/07/27::
Play Video
18
Inside the Hollow Earth Pt 1
Inside the Hollow Earth Pt 1
::2009/06/04::
Play Video
19
FROZEN PLANET Sneak Peek | Premiering March 18, 2012 at 8PM e/p on Discovery*
FROZEN PLANET Sneak Peek | Premiering March 18, 2012 at 8PM e/p on Discovery*
::2012/01/20::
Play Video
20
Thin Ice: Journeys in Polar Regions with Curator Courtney Gilbert
Thin Ice: Journeys in Polar Regions with Curator Courtney Gilbert
::2011/12/30::
Play Video
21
Cosmic Journeys - HyperEarth
Cosmic Journeys - HyperEarth
::2013/07/24::
Play Video
22
Arctic/Antarctic
Arctic/Antarctic
::2007/11/11::
Play Video
23
What is it like in the polar regions.mov
What is it like in the polar regions.mov
::2011/12/07::
Play Video
24
Science for Kids - Ecosystem of Artic and Antartic
Science for Kids - Ecosystem of Artic and Antartic
::2014/05/31::
Play Video
25
Animals of the Polar Regions
Animals of the Polar Regions
::2012/12/21::
Play Video
26
Melting Polar Ice Caps A "Ticking Timebomb" For Earth
Melting Polar Ice Caps A "Ticking Timebomb" For Earth's Climate System
::2014/05/28::
Play Video
27
13,000 year old Dark Knight Satellite, The 15 Ton Alien Mystery.
13,000 year old Dark Knight Satellite, The 15 Ton Alien Mystery.
::2013/08/11::
Play Video
28
Polar Regions: Hunters and Herders (clip)
Polar Regions: Hunters and Herders (clip)
::2011/07/28::
Play Video
29
Hollow Earth: NASA PROOF in ZERO G Experiments!
Hollow Earth: NASA PROOF in ZERO G Experiments!
::2014/09/07::
Play Video
30
Animation of a Mercury Day, Orbit and South Polar Region
Animation of a Mercury Day, Orbit and South Polar Region
::2012/11/29::
Play Video
31
Edexcel GCSE Geography - Features of Polar Regions
Edexcel GCSE Geography - Features of Polar Regions
::2013/09/05::
Play Video
32
Ozone depletion
Ozone depletion
::2014/07/21::
Play Video
33
The Breathing Earth
The Breathing Earth
::2008/04/23::
Play Video
34
Landsat Satellite Tour of the Earth to Music
Landsat Satellite Tour of the Earth to Music
::2013/05/30::
Play Video
35
Polar Nights & Northern Lights (RT Documentary)
Polar Nights & Northern Lights (RT Documentary)
::2013/03/03::
Play Video
36
'Meteor Smoke' Clouds Linked To Weather In Opposite Hemispheres | Video
::2014/04/16::
Play Video
37
Earth
Earth's Climate Checkup: Operation IceBridge 2011
::2013/05/20::
Play Video
38
Introduction to Polar Regions
Introduction to Polar Regions
::2013/10/22::
Play Video
39
NASA Flying Laboratories Study Our World
NASA Flying Laboratories Study Our World
::2014/08/08::
Play Video
40
The Hollow Earth Revisited (Full Version)
The Hollow Earth Revisited (Full Version)
::2014/06/28::
Play Video
41
POLAR EXPLORING
POLAR EXPLORING
::2014/08/12::
Play Video
42
Deserts in Polar regions
Deserts in Polar regions
::2013/11/05::
Play Video
43
Packing for the Polar Regions: 30 second commercial
Packing for the Polar Regions: 30 second commercial
::2014/02/21::
Play Video
44
Inside the Hollow Earth_clip4.avi
Inside the Hollow Earth_clip4.avi
::2010/07/17::
Play Video
45
Space Exploration and Commerce
Space Exploration and Commerce
::2014/03/24::
Play Video
46
NASA | North to South
NASA | North to South
::2007/04/05::
Play Video
47
View of the polar regions by Natalia Galin.mp4
View of the polar regions by Natalia Galin.mp4
::2012/03/08::
Play Video
48
The importance of satellite imagery in predicting climate in the polar regions
The importance of satellite imagery in predicting climate in the polar regions
::2013/03/04::
Play Video
49
The Arctic Regions
The Arctic Regions
::2009/11/08::
Play Video
50
US wants to protect Polar regions
US wants to protect Polar regions
::2009/04/07::
NEXT >>
RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
  (Redirected from Polar region)
Jump to: navigation, search
Vizualization of the ice and snow covering Earth's North and South Poles.

The polar regions of Earth, also known as Earth's frigid zones, are the regions of Earth surrounding its geographical poles (the North and South Poles). These regions are dominated by Earth's polar ice caps, the northern resting on the Arctic Ocean and the southern on the continent of Antarctica.

Terrestrial polar regions[edit]

Definitions[edit]

The Arctic has numerous definitions, including the region north of the Arctic Circle currently (Epoch 2010 at 66°33'44" N), or the region north of 60° north latitude, or the region from the North Pole south to the timberline. The Antarctic is usually defined as south of 60° south latitude, or the continent of Antarctica. The 1959 Antarctic Treaty uses the former definition.

The two polar regions are distinguished from the other two climatic and biomatic belts of Earth, a tropics belt near the equator, and two middle latitude regions located between the tropics and polar regions.

Climate[edit]

Main article: Polar climate

Polar regions receive less intensive solar radiation because the sun's energy arrives at an oblique angle, spreading over a larger area, and also travels a longer distance through the Earth's atmosphere in which it may be absorbed, scattered or reflected, which is the same thing that causes winters to be colder than the rest of the year in temperate areas.

The axial tilt of the Earth has a major effect on climate of the polar regions. Since the polar regions are the farthest from the equator, they receive the least amount of sunlight and are therefore frigid. The large amount of ice and snow also reflects a large part of what little sunlight the Polar regions receive, contributing to the cold. Polar regions are characterized by the polar climate, extremely cold temperatures, heavy glaciation wherever there is sufficient precipitation to form permanent ice, and extreme variations in daylight hours, with twenty-four hours of daylight in summer, and complete darkness at mid-winter.

Circumpolar Arctic region[edit]

See also: North Pole

There are many settlements in Earth's north polar region. Countries with claims to Arctic regions are: the United States (Alaska), Canada, Denmark (Greenland), Norway, Finland, Sweden and Russia. Arctic circumpolar populations often share more in common with each other than with other populations within their national boundaries. As such, the northern polar region is diverse in human settlements and cultures.

Antarctica and the Southern Ocean[edit]

See also: Antarctica

The southern polar region has no permanent human habitation. McMurdo Station is the largest research station in Antarctica, run by the United States. Other notable stations include Palmer Station and Amundsen-Scott South Pole Station (United States), Esperanza Base and Marambio Base (Argentina), Scott Base (New Zealand), and Vostok Station (Russia).

While there are no indigenous human cultures, there is a complex ecosystem, especially along Antarctica's coastal zones. Coastal upwelling provides abundant nutrients which feeds krill, a type of marine crustacea, which in turn feeds a complex of living creatures from penguins to blue whales.

Gallery[edit]

Extraterrestrial polar regions[edit]

Other planets and natural satellites in the solar system have interesting quirks about their polar regions. Earth's Moon is thought to contain substantial deposits of ice in deep craters in its polar regions, which never see direct sunlight. Mars, like Earth, has polar ice caps. On Uranus, meanwhile, the extreme tilt of the planet's axis leads to the poles alternately pointing almost directly at the Sun.

See also[edit]

References[edit]

External links[edit]

Further reading[edit]

  • Victor, Paul-Émile. Man and the Conquest of the Poles, trans. by Scott Sullivan. New York: Simon & Schuster, 1963.


Wikipedia content is licensed under the GFDL License
Powered by YouTube
LEGAL
  • Mashpedia © 2014