Meteorological radar map | Next time, don't call me "big white ball"!

Your impression

What does a meteorological radar look like?

Is it like a huge "football"?

Or is it like a huge "pot"?

The picture on the left is the new generation of weather radar in Longyan in Fujian, and the picture on the right is a full solid millimeter wave dual polarized Doppler test cloud radar

A few days ago, the China Meteorological Administration launched a three -year weather radar observation test, so that more people paid attention to them. Radar, as a major heavy weapon that supports precision monitoring, accurate forecasting, and fine service, has an important position in improving the first line of defense of the strongesty -stream weather monitoring and building a meteorological disaster prevention and mitigation.

---

So what is a meteorological radar?

How many categories of meteorological radar?

Meteorological radar with different forms

What do you do?

The picture shows the new generation of weather radar in Hefei, Anhui

The picture shows the SCRXD-02P X-band dual polarization all-phase parameter Doppler weather radar

The picture shows the X -band phase control array weather radar

[What is a meteorological radar? .

Meteorological radar is an active atmospheric remote sensing detection equipment used to detect various weather phenomena and meteorological elements in the atmosphere. Clouds, rain, wind, temperature and other physical data obtained by meteorological radar can provide necessary information for weather forecasting, numerical weather forecast mode, civil aviation flight safety, national defense construction, etc.

The picture shows Fujian Minhou Xuefeng Radar Station Picture/Shi Kai

[What are the types of meteorological radar? .

Meteorological radar can be divided into weather radar, wind profile radar, empty radar, laser radar and cloud radar. According to different functions, it can be divided into measuring cloud radar, rain radar, and wind testing radar. According to the band, it can be divided into W -band radar, KA band radar, X -band radar, C -band radar, S -band radar, L -band radar, P band radar, etc.

Meteorological radar classification drawing/Yang Shenglan

[Each radar is a master of "body"]

What are the differences in different meteorological radars? How to distinguish the appearance?

Weather radar: It is the main means to conduct atmosphere, cloud, and precipitation physics research and detection. We call it a "scout" for disaster prevention and mitigation. The electromagnetic wave suitable for observing raindrops has S, C, and X bands, and is known as the rain radar. Among them, in the rainy areas in the eastern part of my country, the Weather radar is mainly based on the S -band. As a supplement to the new generation of weather radar network.

The current weather radar is generally Doppler weather radar, which can detect the return strength of the meteorological target, and at the same time, it can also detect the radial speed of the meteorological target through the Doppler effect.

With the development of weather radar technology, dual polarizing detection technology and phase control array detection technology are gradually being promoted and applied. Among them, the active phase control array radar with dual polarizing detection function, and at the same time, it has high time and space resolution and particle formal detection capabilities. It will be an important development direction of the next generation of weather radar.

The picture shows the We weather radar of the S -band

The picture shows the double -line polarization weather radar of the C -band

The picture shows the X -band dual polarization with active phase control array weather radar

Cloud radar: It is mainly used to detect meteorological goals. The size of cloud drip particles is distributed with micron magnitude, and the millimeter band is suitable for observing cloud droplet particles. The two most commonly used bands are KA (wavelength 11.11 mm to 7.5 mm), W -band (wavelength 4.00 mm to 2.73 mm), and and and and of. Also referred to as measuring cloud radar.

The picture shows the foundation W -band segments measure cloud radar

Wind line radar: Also known as the windline wire, it mainly uses the clear air as the detection object. When observing the clear air field, according to the requirements of the detection height and turbulence scale, the selected bands are very high frequency (wavelength 10 mm to 1 meter), ultra -high frequency (wavelength 100 cm to 10 cm), and L bands (and L -bands ( The wavelength is 7.5 mm to 5.0 mm) radar.

Wind line radar picture comes from the Internet

Detective radar: It can complete the detection of information such as the temperature, humidity, air pressure, wind direction, and wind speed at different heights of the atmospheric height under the cooperation of the air balloon, empty or reflective target. The radar calculates the wind direction and wind speed at different heights by continuous tracking the changes in the space of the air balloon and the space of the empty instrument.

Exploring the air radar picture comes from the Internet

Lidar: Use a laser as a transmitting source, and the scattering signal generated by receiving the interaction of laser and atmospheric medium to detect active remote sensing equipment with meteorological elements, atmospheric components, and their characteristics of changes in space -time.

The picture shows laser radar

At present, my country has been built in the world's largest weather radar monitoring network consisting of 237 S -bands and C -band new generation weather radars. In the next three years, the meteorological department will strengthen the key traction and technical guidance of the radar meteorological center in accordance with the idea of ​​"edge testing, edge improvement, while experimenting and surrounding the side application", establish a strong observation system for streaming weather, improve weather radar monitoring and early warning capabilities, and carry out new new warning and early warning capabilities. A generation of weather radar business software is integrated in the integrated trial of provincial, cities, counties, and county, county, county, and county to promote interaction between observation and forecasting services.

After reading this picture

Do you know these meteorological radars?

I will encounter a meteorological radar next time

Can you call them their names?

---

Planning: Cui Guohui Yang Shenglan

Author/Editor: Yang Shenglan

Scientific Consultant: Yang Jinhong, Meteorological Exploration Center of the China Meteorological Administration

- END -