What equipment is needed for Rainfall Monitoring?

What equipment is needed for Rainfall Monitoring?

How can we accurately describe a rain?

From a literary perspective, "The rain came down, thick and fast; and pattered noisily among the leafless bushes." - Excerpted from Oliver Twist.

From a scientific perspective, "Rain is a natural precipitation phenomenon in which water vapor in the atmosphere cools and condenses to form water droplets or ice crystals large enough to fall from the clouds to the ground."

From a meteorological perspective, "This rain is a frontal rain, which lasted for 3 hours, with a moderate precipitation intensity, a precipitation amount of 15 millimeters, and the diameter of raindrops being about 1 - 2 millimeters."

To obtain specific data in meteorology, corresponding instruments are required.

When it comes to Rainfall Monitoring, the required instruments are various rain gauges.

The Stainless Steel Tipping Bucket Rain Gauge measures the amount of rainfall by counting the number of times the tipping bucket turns. Each turn of the tipping bucket represents a certain amount of rainwater, and it can achieve automatic recording and data transmission. It is often used in automated monitoring scenarios such as meteorological stations.

The piezoelectric rain sensor works based on the principle that the piezoelectric material generates an electric charge when impacted by raindrops. It can convert the kinetic energy of raindrops into an electrical signal to measure the amount of rainfall, with a fast response speed and high precision.

The Radar Precipitation Sensor Rain Gauge Distrometer is based on the principle of microwave scattering. By transmitting and receiving microwave signals and analyzing the scattering and reflection of microwaves by raindrops, it can measure rainfall and can monitor the rainfall intensity and distribution in real time.

The Optical Rain Gauge uses the attenuation characteristics of infrared light in the rain. According to the degree of absorption and scattering of infrared light by raindrops, it can detect rainfall and can quickly determine the rainfall status. It is often used in fields such as intelligent transportation.