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2 cards from this section. Quick, good the night before a test.
What is point rainfall?
Think about where we collect exact data.
What is areal rainfall?
Consider how we assess rain over regions.
What is the main characteristic of point rainfall?
Remember the specific point definition.
True or False: Areal rainfall can be calculated as an average over a region.
Consider how averages are formed.
Given data from five rain gauges of 15 mm, 25 mm, 35 mm, 10 mm, and 20 mm, calculate the areal rainfall. Discuss why this value is critical for planning.
Think about what averaging means in context.
What would be the consequences of using point rainfall data alone for a flood risk assessment in a large river basin?
Consider how water flows from an entire area, not just one spot.
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