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Weighing gauge


We discussed the standard rain gauge in our last post, and now I am going to look at the weighing gauge. This type of gauge contains a big storage bin, which is weighed to record the mass. Different models weigh the mass, by different means, for example one way is to use a vibrating wire which is connected to a data logger. Another way of measuring the mass is with a pen on a rotating drum.

The advantages of a weighing gauge over other gauges, is the fact it can measure all types of precipitation, snow, hail and off course rain. The weighing gauge is also able to measure chemicals in the atmosphere in the area it is located. This chemical measuring can be extemely useful for scientists, who can check the effects of green house gases. The downside to this type of gauge is that it is more expensive then other types, and requires more maintenance.

Automatic Rain gauge

Automatic Rain gauge

A rain gauge is a instrument that measures how much rainfall falls in a given set time.

The Ancient greeks were the first people to monitor rainfall at around 500 b.c. They were followd by the Country of India, around 100 years later, using bowls to collect the water. Measuring the rainfall give the greeks and Indians an idea to collect the data, and then tax there citizens, according to how much growth of pastures from the rainfall.

According to history, the first known rain gauge was made by a man called Cheugugi from Korea, but we also find other sources that credit Jang Yeong Sil to be the first person to devlop a rain gauge, by refining an existing gauge.

In the United Kingdom Christopher Wren developed the first rain guage, called the tipping bucket in 1662 A.D.

Usually when measuring how much rain has fallen, the measurements are taken in millimetres, but sometimes it can be measured in inches or centimetres. They can either be read by a person, or a automatic weather station. The amount of time between readings depends on the agency that requires the reading.

There is different types of rain gauges, which can be categorised as,

weighing gauges, tipping bucket gauges, buried pit gauges and graduated cylinders.

Automatic rain gauges are rain gauges that electronically start working once it feels rain on the gauge. They automatically record the data, from measuring to removing the rainfall afterwards. They come with digital displays,and record up to 60 days worth of rain.

Different types of automatic rain gauge / gauges

Rain gauges and automatic rain gauges can be classed into different categories and generally follow this rule:

Graduated cylinders or standard rain gauge. These were made around the 20th century, and consists of a graduated cylinder, with a funnel attached to it, which is then sat in a large container. What happens when it rains, the cylinder fills up, and overflows into the large container, thus the cylinder is measured, and the excess from the large container, is put into another cylinder to be measured.

Generally most rain gauges measure the rain fall in mm, as does the standard rain gauge, and the amount of rain the standard guage can hold is 25mm. Each line on the cylinder is 0.2 mm, and once the water reaches the top, there is a small hole for the rain water to fall in to the larger container.

This is an example of a rain gauge.

Acu-Rite 00614 Wireless Rain Gauge features an extra-wide, 6 inch diameter rain collector (9.5 inches in height) to ensure better measurement accuracy.

automatic rain gauge


A rain gauge(also known as a udometer or a pluviometer [Pluviograph ] or a cup) is a type of instrument used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation (as opposed to solid precipitation that is measured by a snow gauge) over a set period of time.
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