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SOLID �WATER

UNDERSTANDING EARTH SYSTEMS WATER SYSTEMS

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SOLID WATER

most of the fresh water on Earth is found as ice

  • glaciers
  • polar ice caps
  • snow
  • icebergs

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Most of the fresh water �on Earth is found as ice

GLACIERS

POLAR �ICE CAPS

SNOW

ICEBERGS

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POLAR �ICE CAPS

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POLAR ICE CAPS

are areas found near high latitudes

(the North and South Poles)

that are �permanently �covered in ice

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POLAR ICE CAPS

  • the average temperature at the Poles is much lower than on the rest of the Earth because the sun’s rays strike the Earth at an inefficient angle

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POLAR ICE CAPS

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POLAR ICE CAPS

precipitation that falls in these areas falls as snow (temperatures are below freezing) and this snow accumulates on the ice cap

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GLACIERS

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GLACIERS

Large areas of ice that �accumulate in areas where the temperature is below freezing and the rate of accumulation of snow is higher than the rate of snow melt

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GLACIERS

  • glaciers form �in cold areas �(either high �latitudes or �high altitudes)
  • glaciers flow downhill

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ICEBERGS

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ICE BERGS

are large chunks of ice that have broken off of ice caps or glaciers and float freely in the ocean

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ICE BERGS

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ICE BERGS

because of the weight of the iceberg, much of its mass is found below the surface of the water

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ice caps and glaciers change size according to the conditions they experience

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CHANGING SIZE

  • they increase when…
    • temperatures are below freezing
    • the rate of snow accumulation is higher than the rate of melt
  • they decrease when…
    • temperatures are above freezing
    • the rate of snow accumulation is lower than the rate of melt

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CHANGING SIZE

VIDEO ANIMATION: https://vimeo.com/346684067#t=4094s

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WHAT DOES A SCIENTIST LOOK LIKE?

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WHAT DOES A SCIENTIST LOOK LIKE?

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Follow National Geographic photographer James Balog across the Arctic as he deploys time-lapse cameras designed for one purpose: to capture a multi-year record of the world's changing glaciers 

TRAILER: https://www.youtube.com/watch?v=HqknAn_3QpI

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