antarctic

Tera M.
9 words 1 learner

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  1. Amundsen
    Norwegian explorer who was the first to traverse the Northwest Passage and in 1911 the first to reach the South Pole (1872-1928)
    At the same time, the region of the Bellingshausen and Amundsen Seas lost an average of about 3,200 square miles of ice every year.
  2. stratosphere
    atmospheric layer between the troposphere and the mesosphere
    Ozone absorbs solar energy, so a lower concentration of this molecule can lead to a cooling of the stratosphere (the layer between six and 30 miles above the Earth's surface) over Antarctica.
  3. ozone
    a colorless gas that is a screen for ultraviolet radiation
    Recent research points at the depleted ozone layer over Antarctica as a possible culprit.
  4. ozone layer
    a region of the stratosphere that blocks UV radiation from the sun
    Recent research points at the depleted ozone layer over Antarctica as a possible culprit.
  5. defunct
    no longer in force or use; inactive
    "We have a good handle of the extent of the Antarctic sea ice, but the thickness has been the missing piece to monitor the sea ice mass balance," said Thorsten Markus, one of the authors of the study and Project Scientist for ICESat-2, a satellite mission designed to replace the now defunct ICESat.
  6. monitor
    someone who observes to ensure fairness or prevent mistakes
    "We have a good handle of the extent of the Antarctic sea ice, but the thickness has been the missing piece to monitor the sea ice mass balance," said Thorsten Markus, one of the authors of the study and Project Scientist for ICESat-2, a satellite mission designed to replace the now defunct ICESat.
  7. culprit
    someone or something responsible for harm or wrongdoing
    Recent research points at the depleted ozone layer over Antarctica as a possible culprit.
  8. build up
    enlarge, develop, or increase by degrees or in stages
    These large landmasses trap most of the sea ice, which builds up and retreats with each yearly freeze-and-melt cycle.
  9. generate
    bring into existence
    "Winds off the Ross Ice Shelf are getting stronger and stronger, and that causes the sea ice to be pushed off the coast, which generates areas of open water, polynyas," said Josefino Comiso, a senior scientist at NASA Goddard.
Created on Wed Nov 07 09:50:34 EST 2012

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