| 11. | The resultant water levels are changeable due to the instability of ice cover.
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| 12. | Once frozen, the resulting ice cover alleviates lake-effect snow downwind of the lake.
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| 13. | Most of the interior of Antarctica is polar desert, despite the thick ice cover.
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| 14. | CryoSat will assess the state of the world's ice cover.
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| 15. | Ice cover lasts from January February to May each year.
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| 16. | Almost 85 percent of the ice cover disappeared from October 1912 to June 2011.
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| 17. | The period of ice cover is 8 months or more.
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| 18. | It is isolated under year-round ice cover, and is considerably more saline than seawater.
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| 19. | The ice cover can reach up to 2 meters.
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| 20. | Ice cover reduces, but does not eliminate, lake-effect snows.
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