Chapter 24 Reading Guide
The Moving Ocean
24.1 Surface Currents
Summarize important ideas about surface currents by completing the organizer.
Wind Patterns

Such as
2.
1.
Cause

3.
Which are
4.
And flow
Or
Counter-clockwise in
6.
Clockwise in
5.
Describe how monsoon winds affect the behavior of surface currents.
Describe a countercurrent and contrast its flow with the other currents described in this
section.
24.2 Currents under the Surface
Fill in the chart below, organizing the three major density currents – Antarctic Bottom
Water (ABW), North Atlantic Deep Water (NADW), and Antarctic Intermediate Water
(ATW) – by salinity, temperature, depth and density.
Greatest
Intermediate
1. Salinity
2. Temperature
3. Depth
4. Density
1. Explain how evaporation affects density currents.
2. Describe two types of upwellings and their effect on marine life.
24.3 Tides
Complete the organizer to explain how each factor affects the tides.
1. Sun
2. Moon
.
Tides
3. Shoreline Shape
.
What is the tidal impact of the new moon at perigee?
Least