1.Density in the ocean is primarily determined by:
Colder Water
2. Deep currents in the ocean are caused by:
Density differences
3. Water that Sinks:
- Is very dense
- Is found in a few small pots near the poles of the earth
- It moves quickly, because of that the water will sink in only a few days or weeks, depends the speed
4. Water that rises:
- Rises over the whole ocean
- Rises up slow
- And because it is less dense it takes about 1000 years for the water to rise from the bottom of the ocean to the surface.
5. Deep water currents are important because:
- Transports heat around the globe
- Affects our climate (if water took longer to rise, the surface could be warmer)
- Bring nutrients from the bottom of the ocean to the surface.
6. At 50 degrees south , estimate the temperature at the surface and at the bottom.
- Surface temperature is 3 degrees.
- Bottom Surface is 1 degree.
7. At 10 degrees south , estimate the temperature at the surface and at the bottom.
- Surface temperature is 27 degrees.
- Bottom temperature is 4 degrees.
8. Is water more likely to sink near 10 degrees south or near 50 degrees south? Why?
50 degrees because it's more dense, because of that it will have more salinity and sink faster.
9. Looking at the picture of salinity , describe the different vertical layers you see:
There is more salinity north than it is south because there are tons of different temperatures at different spots of the ocean.