Antarctic Bottom Water forms primarily in which area?

Study for the IB Marine Science Standard Level Exam. Prepare with interactive quizzes and in-depth explanations. Use our resources to excel in your marine science knowledge!

Multiple Choice

Antarctic Bottom Water forms primarily in which area?

Explanation:
Antarctic Bottom Water forms where surface water becomes extremely dense due to both cooling and brine rejection from sea-ice formation. The Weddell Sea is the main site because heavy winter sea-ice formation dumps salt back into the surrounding water, making it very cold and salty. This dense water sinks and spreads along the ocean floor as bottom water that drives deep circulation into the global oceans. The other seas listed are associated with North Atlantic Deep Water formation, not Antarctic Bottom Water, so they don’t produce the same extremely dense bottom water characteristic of the Antarctic.

Antarctic Bottom Water forms where surface water becomes extremely dense due to both cooling and brine rejection from sea-ice formation. The Weddell Sea is the main site because heavy winter sea-ice formation dumps salt back into the surrounding water, making it very cold and salty. This dense water sinks and spreads along the ocean floor as bottom water that drives deep circulation into the global oceans. The other seas listed are associated with North Atlantic Deep Water formation, not Antarctic Bottom Water, so they don’t produce the same extremely dense bottom water characteristic of the Antarctic.

Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy