Describe, with the aid of a labelled diagram, how frontal rainfall occurs.
- Junior Cycle Geography - Question 2B - 2019
Question 2B
Describe, with the aid of a labelled diagram, how frontal rainfall occurs.
Worked Solution & Example Answer:Describe, with the aid of a labelled diagram, how frontal rainfall occurs.
- Junior Cycle Geography - Question 2B - 2019
Step 1
Step 1: Draw the Diagram
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Answer
Begin by drawing a diagram that shows the meeting of two different air masses: warm, moist air from the ocean and cool, dry air from land. Indicate the warm air rising over the cool air with arrows. Label the warm air and cool air accordingly.
Step 2
Step 2: Describe Air Mass Interaction
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Answer
When the warm moist air encounters the cooler air mass, it is forced to rise. This upward movement is a key characteristic of frontal rainfall.
Step 3
Step 3: Cooling and Condensation
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As the warm air rises, it cools. The cooling process causes the water vapour in the warm air to condense. This leads to the formation of clouds.
Step 4
Step 4: Precipitation
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Once the clouds become saturated with moisture, precipitation occurs in the form of rain. This type of rainfall is often steady and can last for extended periods.
Step 5
Step 5: Label Elements on the Diagram
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Answer
Ensure to label the key components in your diagram such as air masses, direction of movement, areas of rising air, and the resulting precipitation. This enhances clarity and provides a comprehensive understanding of the frontal rainfall process.
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