1. Engineering
  2. Mechanical Engineering
  3. the oceans provide a large energy quotsinkquot acting to buffer...

Question: the oceans provide a large energy quotsinkquot acting to buffer...

Question details

The oceans provide a large energy sink, acting to buffer global temperatures. However, sea water changes density with temperature, which can affect sea levels even without considering the effects on ice caps or glaciers. A recent paper showed that ocean temperatures are rising at 012°C per decade. The USGS estimates that the oceans have a volume of 321 million cubic miles. For simplicity, assume that this water is arrayed in a spherical shell of constant depth around the Earth, which has a radius of 3960 miles. a. Estimate the thickness, h (in miles), of this spherical shell. (Note that this can be treated as the ocean depth.) b. Sea water has a volumetric coefficient of thermal expansion, a, of 0.000052 K-1, which represents the relative increase in volume per temperature increase, (AN)ΙΔΤ. Assuming that the water temperature rises by a uniform ΔΤ of 0.12°C, what is the change in the volume of ocean water, AV (in cubic miles)? c. Estimate the change in ocean depth, Ah, after being heated.

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution