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3 cards from this section. Quick, good the night before a test.
What is the Thiessen Polygon Method used for?
Think about how we can represent areas influenced by each rain gauge.
Name the first step in the Thiessen Polygon Method.
How do we connect the stations geometrically?
What is the primary purpose of the Thiessen Polygon Method?
Consider what type of data we're summarizing.
True or False: The Thiessen Polygon Method involves drawing bisectors between all point rainfall stations.
Remember how we designate areas of influence.
Suppose you have three rain gauge stations with the following data: Station A: 100 mm, Station B: 150 mm, Station C: 200 mm. If their corresponding polygon areas are 10 km², 20 km², and 30 km², respectively, calculate the average areal rainfall.
Use weighted averages based on the area.
Consider a scenario where two rain gauges are located at different elevations (100 m and 200 m) but within close distance. Discuss how you would apply the Thiessen Polygon Method and what additional factors you might need to consider.
How does elevation impact rainfall data?
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