Exam 3 Study Guide Questions

What is the definition of convection, and which types of materials move in the process of convection?

Answer explanation

Convection is the transfer of heat through the movement of fluids (liquids and gases). In this process, the warmer, less dense parts of the fluid rise while cooler, denser parts sink, creating a circulation pattern.

What are the 3 physical concepts that influence convection? How do you define them, and how do they influence convection? How are buoyancy and density related?

What are examples of convection cells in the Earth, in water, and in the atmosphere?

Answer explanation

Convection cells are seen in the Earth's mantle (mantle convection), in water (boiling water), and in the atmosphere (Hadley cells). These examples illustrate the movement of fluids driven by temperature differences.

How do differences in density influence the movement of air?

Answer explanation

Differences in density cause air to move, as warmer, less dense air rises while cooler, denser air sinks. This movement creates convection currents, influencing weather patterns and air circulation.

What are the weather instruments that you included in your work on the Weather Lab? What is the difference between weather and climate?

Answer explanation

In the Weather Lab, instruments like thermometers, barometers, and anemometers were used. Weather refers to short-term atmospheric conditions, while climate is the long-term average of weather patterns in a region.

How did Hurricanes Irma and Maria, in the USVI, compare to other natural disasters in Caribbean, US, and Territorial history? Review the amount of energy, intensity, economic impacts, and social justice implications.

Answer explanation

Hurricanes Irma and Maria were among the most intense storms in USVI history, causing unprecedented economic damage and highlighting social justice issues, particularly in vulnerable communities, compared to other Caribbean disasters.

How and why do winds move between areas of different pressure? How are atmospheric pressure differences related to temperature, density, and buoyance?

Answer explanation

Winds move from high to low pressure due to differences in atmospheric pressure. These differences arise from temperature variations, affecting air density and buoyancy, causing warmer, less dense air to rise and cooler, denser air to sink.

What is the main source of energy that causes global atmospheric circulation to develop?

Answer explanation

The main source of energy driving global atmospheric circulation is the Sun. Solar radiation heats the Earth's surface unevenly, creating temperature differences that lead to wind patterns and atmospheric movement.

What causes the Coriolis Effect? How is the Coriolis Effect important to the development of hurricanes?

Answer explanation

The Coriolis Effect is caused by the Earth's rotation, affecting moving air and water. It is crucial for hurricanes as it helps to organize and rotate the storm system, allowing for the characteristic spiral shape and intensification.

What are the InterTropical Convergence Zone and the Bermuda Azores High? Are they relevant to hurricanes? Why or why not?

Answer explanation

The InterTropical Convergence Zone (ITCZ) and Bermuda Azores High influence hurricane formation. The ITCZ provides moisture and convergence, while the Bermuda Azores High steers storms. Both are crucial for hurricane development and path.