Also found in: Thesaurus.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.north-polar - of or relating to the Arctic; "the Arctic summer"
polar - of or existing at or near a geographical pole or within the Arctic or Antarctic Circles; "polar regions"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Washington, September 23 (ANI): New, three-dimensional imaging of Martian north-polar ice layers by a radar instrument on NASA's Mars Reconnaissance Orbiter matches with theoretical models of Martian climate swings during the past few million years.
An earlier, briefer study of the Martian north-polar region with the same radar detector found no such depressions beneath the vast deposits of water-ice there.--R.C.
In any case, the north-polar hexagon is huge, spanning 25,000 km (twice Earth's diameter), and it subtends more than 3 arcseconds for earthbound observers--four times the apparent diameter of Titan, Saturn's largest satellite.
Last summer, NASA announced plans to launch a lander to the north-polar regions of Mars in 2007.
While all that digging and digesting goes on, Phoenix is keeping track of the north-polar weather using a meteorological station built by the Canadian Space Agency with contributions from Danish and Finnish teams.