polar cap

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polar cap

[′pō·lər ‚kap]
(astronomy)
Any of the bright areas covering the poles of Mars, believed to be composed of frozen carbon dioxide and water-ice.
(hydrology)
An ice sheet centered at one of the poles of the earth.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The added gas from the polar ice caps didn't significantly affect that proportion.
Bask in The SUNSHINE as You WATCH The POLAR iCE CAP MELT
Concerns among scientists about the rate of melting of the polar ice cap escalated with the 2002 collapse of a massive glacial shelf in Antarctica the size of Rhode Island.
Whether we will melt because of "global warming", or freeze through nuclear winter; whether the polar ice cap will melt and drown us, or atmospheric particulates block out the sun's rays and freeze us, I do not know.
Former Delaware Governor Pete du Pont, chairman of the Dallas-based National Center for Policy Analysis, has been unkind enough to point out that the south polar ice cap is melting ...
The Hubble Space Telescope has captured spectacular images of Mars, including detailed pictures of a polar ice cap covering Mars' south pole and a giant canyon wall.
"If the temperature [is] increasing a degree per decade," McKibben writes, "the forest surrounding my [northern New York State] home would be due at the Canadian border sometime around 2020." And McKibben calls Thomas Midgley, the General Motors chemist who invented both chlorofluorocarbons and tetraethyl lead gasoline additives, the one "who may now hold the record for most banned substances produced by a singled man." He devotes a delightful paragraph to military ruminations over whether global warming, by shrinking the polar ice cap that Soviet nuclear missile submarine use for cover, will confer an advantage on the U.S.
Summary: TEHRAN (FNA)- New research suggests liquid water is present beneath the south polar ice cap of Mars.
The melting of the polar ice cap in the Arctic is depriving the animals of access to their main food source of seals.
The polar ice cap acts as a giant parasol, reflecting sunlight back into the atmosphere in what is known as the albedo effect.
And they reached their destination last night (Sunday) after a 13-day trek of around 190 miles across the frozen polar ice cap - three days ahead of schedule.