What is the diameter of a rain gauge?
Instruments. The standard instrument for the measurement of rainfall is the 203mm (8 inch) rain gauge. This is essentially a circular funnel with a diameter of 203mm which collects the rain into a graduated and calibrated cylinder.
Does the diameter of a rain gauge matter?
The larger the opening, the lower the statistical error in measurements in real-world applications. Always choose the largest size that your budget allows. Rain gauge resolution determines the smallest amount of precipitation that one is able to measure and the accuracy of short-term rain intensity measurements.
Are all rain gauges the same size?
Answer: The reason you couldn’t find an answer from those folks is there is no standard rain gauge. … The rain gauge should have a collection area of at least ten times the area of the measuring device. First, use a ruler and pour water into a one gallon container, such as a used bleach bottle, to a depth of 1 cm.
What is ordinary rain gauge?
• Ordinary rain gauge (ORG) is an instrument. used for measuring the amount of rainfall. • It consists of five parts- (1) funnel, (2) receiver, (3) body, (4) base and (5) measuring cylinder.
Why is a rain gauge placed 30 cm above the ground?
The rain gauge is kept on a platform above the level of the ground to prevent the splashing of rain water.