What is the development history of meteorological Doppler radar?

Before World War II, radar was used for military purposes. At that time, the echoes of meteorological targets such as clouds and rain were regarded as interference. 194 1 year, radar was first used to detect storms in Britain. From 1942 to 1943, the radar designed by MIT for meteorological purposes. In the early stage of the development of meteorological radar, it is generally operated by hand, and the echo data can only be qualitatively analyzed.

Doppler technology was adopted in 1960s, and meteorological Doppler radar has the ability to quantitatively detect the structure of large airflow field. Digital display and color display of conventional radar also appeared one after another.

In 1970s, in addition to the joint use of several Doppler radars, VHF and UHF Doppler radars with high power and high sensitivity and high-resolution FM continuous wave radar with Doppler performance were successively developed. In radar structure, integrated circuits are widely used and equipped with small or microcomputer, so that meteorological radar can carry out real-time digital processing and digital long-distance transmission of detection data; Some weather radars can be operated and observed by electronic computers according to pre-programmed programs, and gradually developed into automatic observation networks.

After 1980s, on the basis of Doppler radar, the professor of electronic engineering department of Colorado State University put forward the idea of polarized weather radar, which provided a more advanced platform for atmospheric radar detection and meteorological data analysis. The parameters of polarization Doppler radar provide more accurate information for analyzing the distribution of precipitation information such as raindrops and the distribution of rainfall shapes. CSU-CHILL radar of Colorado State University is also the most advanced weather radar in the world. CSU-CHILL is the national weather radar equipment of the United States, funded by NSF and managed by Colorado State University.