OceanographyQuestions

Question 1

Which of the following is a characteristic of currents in the Arctic Ocean? (Choose all that apply.)

The only correct answer is b) "Generally weak (speed <0.5kt)."

Currents tend to flow west to east along the coasts of Eurasia and North America. Surface currents tend to flow into the Arctic through the Bering Strait and Norwegian Current.

Question 2

How deep is the sill that separates the Arctic Ocean from the North Atlantic? (Choose the best answer.)

The correct answer is c) "800 meters."

As a result, there is no exchange of deep water between the Arctic and the rest of the world ocean.

Question 3

Use the selection boxes to choose the answers that best complete the statements.

Atlantic water in the Arctic Ocean is and than Arctic water.

The correct answer is that Atlantic water in the Arctic Ocean is warmer and saltier than Arctic water.

Question 4

Due to the sound speed profile, which direction do sound waves in the Arctic Ocean typically refract? (Choose the best answer.)

The correct answer is b) "Upwards."

Because sound speed tends to increase with depth, sound waves continually refract upwards in the Arctic Ocean.