15 terms

Ch 15 Oceanography

The study of Earth's oceans, physical properties and organisms that live in them
Sea Level
The average level of the ocean's surface measured along a shoreline.
Salt water like oceans, but smaller and more land-locked.
Measure of the amount of salt dissolved in water
The entire area of land that drains into a specific river, lake or ocean
Rainfall or snowmelt that cannot be absorbed by soil and flows over the land into a body of water
Temperature Profile
A graph of how water temperature changes with depth in the ocean.

Extra: Includes the temperature and the latitudes where the following 3 layers are found: Surface Layer, Thermocline, Bottom Layer.
A transition layer that has rapidly decreasing temperature with depth.
Rhythmic movement that carries energy through water, space or matter.

Extra: In oceans waves are created by wind moving over the surface of the water.
The distance that the wind blows over water.

Extra: The bigger the fetch, the bigger the waves become.
Collapsing ocean wave that forms when a wave reaches shallow water and is slowed by friction with the ocean bottom.
Density Current
Current formed when dense seawater sinks beneath less dense seawater.

Extra: It is too deep to be caused by wind. Instead the current is caused by differences in temperature and salinity which leads to differences in density.
Surface Current
Ocean current caused by wind that occurs at or near the ocean's surface.
Closed circular currents caused by the deflection (bouncing) of ocean currents when they hit continents.
Movement of deep, cold, and nutrient-rich water to the surface.

Extra: It is caused by winds pushing the surfacewater away so cold water can rise.