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polar regions  search
NTPolar Continental Shelf
RTAntarctica
 Arctic region
 equatorial region
 Makarov Basin
 Mars
 North Pole
 planetology
 polar caps
 South Pole
SNUsed for the region surrounding both geographic poles. Before 1993, used with Earth. May now be used with Earth or other planets. After 1992, search in combination with planet or continent or region. Before 1978, also search Polar. Indexed with planet or