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Antarctic Circle

Antarctic Circle, imaginary circle on the surface of the earth at 66 1/2°S lat., i.e., 23 1/2° north of the South Pole. It marks the southernmost point at which the sun can be seen at the winter solstice (about June 22) and the northernmost point of the southern polar regions at which the midnight sun is visible.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

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See more Encyclopedia articles on: Antarctic Physical Geography

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Related content from HighBeam Research on: Antarctic Circle

The Antarctic; from the circle to the pole.(Brief article)(Book review) (Reference & Research Book News)

Evidence against an Antarctic Stratospheric Vortex Split during the Periods of Pre-IGY Temperature Measurements (Journal of the Atmospheric Sciences)

The silence roars in my ears: unsung early Australian Antarctic exploration. (Quadrant)

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Polar Meltdown.(there are noticeable signs of global warming on the Antarctic Peninsula, but many skeptics remain unconvinced) (U.S. News & World Report)

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Thermodynamic mechanisms responsible for the tropospheric response to SST anomalies in the Antarctic Circumpolar Wave (Journal of Climate)

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That First Antarctic Winter.(poem) (Quadrant)

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