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  2. Ice sheet - Wikipedia

    en.wikipedia.org/wiki/Ice_sheet

    Greenland ice sheet as seen from space. An ice sheet is a body of ice which covers a land area of continental size - meaning that it exceeds 50,000 km 2. [4] The currently existing two ice sheets in Greenland and Antarctica have a much greater area than this minimum definition, measuring at 1.7 million km 2 and 14 million km 2, respectively.

  3. Antarctic ice sheet - Wikipedia

    en.wikipedia.org/wiki/Antarctic_ice_sheet

    The Antarctic ice sheet covers an area of almost 14 million square kilometres (5.4 million square miles) and contains 26.5 million cubic kilometres (6,400,000 cubic miles) of ice. [6] A cubic kilometer of ice weighs approximately 0.92 metric gigatonnes, meaning that the ice sheet weighs about 24,380,000 gigatonnes. This ice is equivalent to ...

  4. Quaternary glaciation - Wikipedia

    en.wikipedia.org/wiki/Quaternary_glaciation

    Sand dunes were much more widespread and active in many areas during the early Quaternary period. A good example is the Sand Hills region in Nebraska which covers an area of about 60,000 km 2 (23,166 sq mi). [40] This region was a large, active dune field during the Pleistocene epoch but today is largely stabilized by grass cover. [41] [42]

  5. West Antarctic Ice Sheet - Wikipedia

    en.wikipedia.org/wiki/West_Antarctic_Ice_Sheet

    A map of West Antarctica. The total volume of the entire Antarctic ice sheet is estimated at 26.92 million km 3 (6.46 million cu mi), [2] while the WAIS contains about 2.1 million km 3 (530,000 cu mi) in ice that is above the sea level, and ~1 million km 3 (240,000 cu mi) in ice that is below it. [20]

  6. Greenland ice sheet - Wikipedia

    en.wikipedia.org/wiki/Greenland_ice_sheet

    Even in 1993, Greenland's melt resulted in 300 cubic kilometers of fresh meltwater entering the seas annually, which was substantially larger than the liquid meltwater input from the Antarctic ice sheet, and equivalent to 0.7% of freshwater entering the oceans from all of the world's rivers. [149]

  7. East Antarctic Ice Sheet - Wikipedia

    en.wikipedia.org/wiki/East_Antarctic_Ice_Sheet

    The East Antarctic Ice Sheet (EAIS) lies between 45° west and 168° east longitudinally. It was first formed around 34 million years ago, [3] and it is the largest ice sheet on the entire planet, with far greater volume than the Greenland ice sheet or the West Antarctic Ice Sheet (WAIS), from which it is separated by the Transantarctic Mountains.

  8. Antarctic sea ice - Wikipedia

    en.wikipedia.org/wiki/Antarctic_sea_ice

    [2] [3] Consequently, most Antarctic sea ice is first year ice, a few meters thick, but the exact thickness is not known. The area of 18 million km^2 of ice is 18 trillion square meters, so for each meter of thickness, given that the density of ice is about 0.88 teratonnes/million km^3, the mass of the top meter of Antarctic sea ice is roughly ...

  9. Orders of magnitude (energy) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(energy)

    Energy to melt 1 g of ice [86] > 3.6×10 2 J: Kinetic energy of 800 gram [87] standard men's javelin thrown at > 30 m/s [88] by elite javelin throwers [89] 5–20×10 2 J: Energy output of a typical photography studio strobe light in a single flash [90] 6×10 2 J: Use of a 10-watt flashlight for 1 minute 7.5×10 2 J: A power of 1 horsepower ...