Machine-translated by Google. Questions are authored in English.
Top

Discussion

Which total poleward energy transport is required at that latitude?

  • A.About 500 petawatts
  • B.About 5 gigawatts, which would be the output of a small number of large electricity generating stations
  • C.About 5 to 6 petawatts
  • D.About 5 to 6 terawatts, which is comparable with the total rate of energy use by human civilisation

Answer: C

Satellite measurements of the radiation balance require a combined atmospheric and oceanic transport of roughly \( 5.5 \times 10^{15} \) watts across 38 degrees. The atmosphere carries the larger share outside the tropics and the ocean the larger share within them. The magnitude is worth remembering because it puts every other energy flow in the climate system into proportion. A limit that survives making every external component ideal is an intrinsic one, and worth knowing for that reason.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.