What do you think of the basic reflectivity dbz color?

Radar images are usually black and white, and consist of four colors: green, yellow, red and purple. Different colors represent different echo intensities. The greater the echo intensity, the greater the possibility of short-term heavy precipitation and convection.

The warmer and darker the color, the more intense the weather. When it is moderately green, there will be light rain; To deep yellow, the rain has made people feel a little anxious, and the rain will wet your trouser legs; When it turns red, it rains cats and dogs, and the umbrella may not hold up; When the colors are dark red, pink, purple and white, it is estimated that even the umbrella can't be played at this time, and the rainfall intensity is very strong, usually accompanied by thunderstorms and even hail.

principle of operation

The working principle of gas radar is based on Doppler effect, which shows that when precipitation particles move relative to radar transmitting beam, the difference of high frequency between the received signal and the transmitted signal can be determined, so as to obtain the required information.

Using this principle, the velocity of scatterer relative to radar can be measured, and the distribution of atmospheric wind field, vertical velocity of airflow and turbulence can be inversed under certain conditions. It is of great significance to study the formation of precipitation, analyze the mesoscale weather system and prevent severe convective weather.