U6D2 The Spiral Path (Eckman Spiral)

Open Ended

Why is it important to understand how currents move beneath the ocean's surface, not just on top?

Multiple Choice

What evidence did Nyx and Brann observe that suggested the water currents were behaving unusually?

• The probe glowed brightly

• Currents changed direction with depth

• The water was warmer than expected

• Fish were swimming in circles

Multiple Choice

How did Liora's layered current data change the crew's understanding of the water system?

• It showed the water was stagnant

• It revealed multiple layers of currents

• It proved the water was polluted

• It indicated the water was freezing

Open Ended

What drives surface currents?

Multiple Choice

According to the Ekman Spiral, how does wind affect the movement of water layers?

• Wind pushes only the surface layer

• Wind causes each layer to turn slightly

• Wind makes all layers move in the same direction

• Wind has no effect on water movement

Multiple Choice

What is the Ekman Spiral and how does it affect water movement as depth increases?

• It causes water to move faster and in a straight line.

• It causes water speed to decrease and direction to rotate with depth.

• It creates waves that move only at the surface.

• It has no effect on water movement.

Multiple Choice

What is the net movement of water due to Ekman transport when all layers are combined?

• Parallel to the wind

• Opposite to the wind

• 90° to the wind

• At a random angle

Open Ended

What is the Ekman Spiral, and how does it relate to layered ocean currents?