polar cap


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polar cap

n.
Either of the regions around a planet's poles that are permanently covered with ice or other frozen material. Also called polar ice cap.

polar cap

1. The mass of permanent ice that covers either of the Earth's polar regions.
2. The mass of frozen carbon dioxide and water that covers either of Mars's polar regions.
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References in periodicals archive ?
New Horizons scientists interpreted the data to reveal the dwarf planet has broad surface markings -- some bright, some dark -- including a bright area at one pole that may be a polar cap.
This provided a prime opportunity for studying its North Polar Cap (NPC).
So when they're not preventing nuclear wars or asteroid deflecting They'll plug the holes in the ozone layer or Keep the polar cap from melting So let's just show some gratitude and all say: "ThanKs a million.
Di Giovanni appeared in the 2012 December Journal, which sought to correlate polar cap recession rate with solar activity.
I was pointing out the other day that with the polar cap melting, we now have problems with regard to who claims the area in the polar region.
and his colleagues base their findings on radar studies by the Mars Reconnaissance Orbiter of the layered deposits at Mars' south polar cap.
Z(0, [alpha]) is a North polar cap, that is a spherical cap with center the North pole, and Z([alpha], [pi]) is a South polar cap.
These conditions are consistent with observed polar cap erosion and may even influence the triggering of large dust storms.
The polar cap of my Alaska had suffered from the effects of global warming and was marshmallowy, not crisp-coated, but my companion's pot de crAme was a delightful mix of bold ice cream and fluffy coffee cream, dusted with chocolate, that brought things to a happy ending.
Even a medium sized telescope should be able to pick out different terrain, cloud features and possibly the south polar cap.
At the top is the North Polar Cap, made of thawing water and carbon-dioxide-based ice.
A telescope with an aperture of four inches or more will reveal surface details of Mars, including the glistening south polar cap - currently tilted towards to the Earth - and dark markings normally only seen on the Hubble space telescope photos.