Rainfall is typically collected using specialized instruments called rain gauges.
Here's how it works, based on the standard instrument:
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The Standard Rain Gauge: The most common instrument for measuring rainfall is the 203mm (8 inch) rain gauge.
- This gauge features a circular funnel that is 203mm in diameter.
- The funnel collects the rain.
- The collected rain then flows into a graduated and calibrated cylinder for measurement. This cylinder allows observers to determine the amount of rainfall that has occurred.
In summary, rain gauges, particularly the standard 203mm model, use a funnel to gather rainfall, which is then directed into a calibrated cylinder for accurate measurement.
