Estuaries and Ocean Currents Concepts

The video tutorial covers the concept of geostrophic currents, explaining how they balance with Coriolis and pressure gradient forces. It discusses coastal currents, upwelling, and the California Current, highlighting the influence of freshwater and the Davidson Current. The tutorial introduces estuaries, describing different types such as fjords, tectonic estuaries, and coastal plain estuaries, and explains their formation processes.

What balances the pressure gradient force on a rotating planet?

• Coriolis effect

• Magnetic field

• Tidal forces

• Gravity

What occurs when water is pushed away from the coast?

• Geostrophic flow

• Downwelling

• Upwelling

• Ekman convergence

Which current is known for bringing cold water from high latitudes towards the tropics?

• Antarctic Circumpolar Current

• Kuroshio Current

• California Current

• Gulf Stream

What is a partly enclosed body of water with fresh and ocean water called?

• Bay

• Estuary

• Harbor

• Lagoon

Which type of estuary is formed by glaciated valleys?

• Coastal plain estuary

• Bar-built estuary

• Tectonic estuary

• Fjord

What is the main characteristic of a bar-built estuary?

• Located in mountainous regions

• Separated by a sandbar or barrier

• Formed by tectonic activity

• Carved by glaciers

Which estuary type is associated with tectonic activity?

• Fjord

• Bar-built estuary

• Tectonic estuary

• Coastal plain estuary

What is the primary source of water for rivers flowing into estuaries during spring?

• Ocean tides

• Rainfall

• Groundwater

• Mountain snow melting

Which estuary type is formed by river-carved valleys?

• Tectonic estuary

• Bar-built estuary

• Coastal plain estuary

• Fjord

What happens to sea levels as glaciers melt and the ice age ends?

• Sea levels fall

• Sea levels rise

• Sea levels fluctuate

• Sea levels remain constant