Which statement is TRUE concerning the...

🔍 Key Concepts

• Gulf Stream as a major western boundary current driven primarily by wind patterns and large-scale circulation, not local tides • Difference between tide-related currents (like in bays/inlets) vs. large ocean currents like the Gulf Stream • Role of trade winds and wind stress on the ocean surface in setting up and modifying major currents

💭 Think About

• Ask yourself: Is the Gulf Stream mainly controlled by the Moon (tides and declination), or by large-scale wind and pressure systems? • Which of these statements sound like they describe tidal currents in restricted waters rather than a broad, deep ocean current? • Think about the size and depth of the Gulf Stream: would slight changes in the Moon’s position significantly narrow or widen such a massive current on a regular basis?

✅ Before You Answer

• Distinguish between tidal currents (caused by gravitational pull of Moon/Sun) and ocean gyre currents (caused mainly by winds and Coriolis effect). • Check which options focus on tidal timing and lunar declination; ask if those are dominant factors for the Gulf Stream. • Verify in your reference text what primarily influences the strength and path of the Gulf Stream, especially the role of trade winds.

Which statement is TRUE concerning the current of the Gulf Stream?

When the Moon is at its maximum declination the stream is narrower than when the Moon is on the equator.

It is slower at the time of neap tides than at spring tides.

It reaches its daily maximum speed a few hours before the transit of the Moon.

Variations in the trade winds affect the current.

🔍 Key Concepts

💭 Think About

✅ Before You Answer