3. Physical Oceanography

Observational Methods — Quiz

Test your understanding of observational methods with 5 practice questions.

Practice Questions

Question 1

Which in situ instrument is most effective for providing continuous, long-term data at a fixed point in the ocean, often with multiple sensors at different depths?

Question 2

An ARGO float's typical operational cycle involves descending to a parking depth, drifting, profiling to the surface, and then transmitting data. What is the approximate duration of one complete cycle?

Question 3

The Doppler effect is fundamental to the operation of an ADCP. If a sound wave is emitted by an ADCP and reflected by particles moving away from the instrument, how does the frequency of the reflected wave change?

Question 4

What is the primary advantage of using in situ instruments for oceanographic research compared to remote sensing techniques?

Question 5

Which in situ instrument is most effective for measuring ocean currents across a broad area and at various depths simultaneously?