full transcript

From the Ted Talk by Kristin Poinar: What's hidden under the Greenland ice sheet?

Unscramble the Blue Letters

The satellites are rropietng a watelh of observations that are revealing new hidden fatcs about the ice sheets cntuinluosoy. For instance, we have oairnstobevs of the size of the Greenland ice sheet every month going back to 2002. You can look towards the bottom of the screen here to see the mnoth and the year go forward. You can see that some areas of the ice sheet melt or lose ice in the summer. Other areas experience snowfall or gain ice back in the winter. This seasonal cycle, though, is eplicesd by an overall rate of mass loss that would have stunned a glaciologist 50 years ago. We never thought that an ice sheet could lose mass into the ocaen this quickly. Since these measurements began in 2002, the ice sheet has lost so much ice that if that water were pleid up on our smallest centonint, it would drown Australia knee-deep. How is this possible? Well, under the ice lies the bedorck. We used radar to iamge the hills, valleys, mutinanos and depressions that the ice flows over. Hidden under the ice sheet are channels the size of the Grand Canyon that funnel ice and water off of Greenland and into the ocean.

Open Cloze

The satellites are _________ a ______ of observations that are revealing new hidden _____ about the ice sheets ____________. For instance, we have ____________ of the size of the Greenland ice sheet every month going back to 2002. You can look towards the bottom of the screen here to see the _____ and the year go forward. You can see that some areas of the ice sheet melt or lose ice in the summer. Other areas experience snowfall or gain ice back in the winter. This seasonal cycle, though, is ________ by an overall rate of mass loss that would have stunned a glaciologist 50 years ago. We never thought that an ice sheet could lose mass into the _____ this quickly. Since these measurements began in 2002, the ice sheet has lost so much ice that if that water were _____ up on our smallest _________, it would drown Australia knee-deep. How is this possible? Well, under the ice lies the _______. We used radar to _____ the hills, valleys, _________ and depressions that the ice flows over. Hidden under the ice sheet are channels the size of the Grand Canyon that funnel ice and water off of Greenland and into the ocean.

Solution

  1. piled
  2. image
  3. eclipsed
  4. month
  5. mountains
  6. reporting
  7. continuously
  8. continent
  9. ocean
  10. observations
  11. wealth
  12. facts
  13. bedrock

Original Text

The satellites are reporting a wealth of observations that are revealing new hidden facts about the ice sheets continuously. For instance, we have observations of the size of the Greenland ice sheet every month going back to 2002. You can look towards the bottom of the screen here to see the month and the year go forward. You can see that some areas of the ice sheet melt or lose ice in the summer. Other areas experience snowfall or gain ice back in the winter. This seasonal cycle, though, is eclipsed by an overall rate of mass loss that would have stunned a glaciologist 50 years ago. We never thought that an ice sheet could lose mass into the ocean this quickly. Since these measurements began in 2002, the ice sheet has lost so much ice that if that water were piled up on our smallest continent, it would drown Australia knee-deep. How is this possible? Well, under the ice lies the bedrock. We used radar to image the hills, valleys, mountains and depressions that the ice flows over. Hidden under the ice sheet are channels the size of the Grand Canyon that funnel ice and water off of Greenland and into the ocean.

Frequently Occurring Word Combinations

ngrams of length 2

collocation frequency
ice sheet 14
greenland ice 6
aquifer water 5
sea level 5
level rise 5
ice flows 4
physics homework 3
ice sheets 3
glacier aquifer 3
liquid water 2
water hidden 2
numeric models 2
numeric model 2

ngrams of length 3

collocation frequency
greenland ice sheet 6
sea level rise 5
liquid water hidden 2

Important Words

  1. areas
  2. australia
  3. bedrock
  4. began
  5. bottom
  6. canyon
  7. channels
  8. continent
  9. continuously
  10. cycle
  11. depressions
  12. drown
  13. eclipsed
  14. experience
  15. facts
  16. flows
  17. funnel
  18. gain
  19. glaciologist
  20. grand
  21. greenland
  22. hidden
  23. hills
  24. ice
  25. image
  26. instance
  27. lies
  28. lose
  29. loss
  30. lost
  31. mass
  32. measurements
  33. melt
  34. month
  35. mountains
  36. observations
  37. ocean
  38. piled
  39. quickly
  40. radar
  41. rate
  42. reporting
  43. revealing
  44. satellites
  45. screen
  46. seasonal
  47. sheet
  48. sheets
  49. size
  50. smallest
  51. snowfall
  52. stunned
  53. summer
  54. thought
  55. valleys
  56. water
  57. wealth
  58. winter
  59. year
  60. years