Admin Table of Contents
How do I locate a rain gauge?
Ideally, they should be installed in an open area, but this should also be a place that is protected from wind coming from any possible direction. A general rule is that a gauge should be placed away from any obstruction, at least twice the height of whatever that object might be.
What does a rain gauge show?
A rain gauge basically collects water falling on it and records the change over time in the rainfall depth, which is usually expressed in mm. You can get much more detailed information with disdrometers.
How do rain gauges work?
The Standard Rain Gauge These gauges work by catching the falling rain in a funnel-shaped collector that is attached to a measuring tube. The diameter of the collector is 10 times that of the tube; thus, the rain gauge works by magnifying the liquid by a factor of 10.
How do you measure rainfall at home?
Here’s what you’ll need to do:
- Measure the diameter of the bucket at the level of the rain.
- Measure the diameter of the bucket at the bottom in the same way.
- Calculate the average of the two diameters.
- Divide by two to find the average radius.
- Find the average volume of rain = Depth x radius x radius x 3.14.
What does a simple rain gauge consists of?
It consists of a 127 mm diameter copper cylinder with a chamfered rim made of brass. Precipitation that falls on the rain gauge orifice drains through a funnel into a removable container from which the rain may be poured into a graduated glass measuring cylinder.
Where should you not place a rain gauge?
It can be mounted on a fence, or placed in your yard, but the most important thing that you’ll want to remember is to not place it next to a building, trees, or shrubs. This can affect how much rainfall is in your rain gauge. Improper placement of your rain gauge can affect how much precipitation is falling into it.
How accurate is rain gauge?
Analog rain gauges are very accurate with precise measurement markings, but some are highly accurate like the Stratus Precision Rain Gauge which is accurate to 1/100th of an inch.
What are the different types of rain gauge?
There are two types of rain gauges, non-recording type and recording type. Rain gauge is a type of instrument used by meteorologists and hydrologists to measure rainfall rate in a certain period of time. Rain gauges are also known as udometer, pluviometer and ombrometer.
How do rain gauges measure?
Most modern rain gauges generally measure the precipitation in millimetres in height collected on each square meter during a certain period, equivalent to litres per square metre. Previously rain was recorded as inches or points, where one point is equal to 0.254 mm or 0.01 of an inch.
How to read your rain gauge.?
Here’s how: Check rain gauge. Get your rain gauge and make sure that it is empty even before the rainfall you are planning to measure pours. Read rain gauge on eye level. Once the rainfall has occurred, examine the filled rain gauge. Record water’s height. Do the recording of the water level’s height.