European Facility For Airborne Research Sept. 29, 2020, 18:09
|Name||Lidar and Radar Observations|
|Description||Radar detection and ranging (RADAR) meteorology dates back to the 1940s. Rain and clouds were RADAR disturbances originally but became subjects of scientific studies already more than 50 years ago. The technology was rapidly extended to installations of RADARs in aircraft both for severe weather avoidance and for research. Laser sources were developed in the 1960s leading to the use of LIDARs and these too were adapted to aircraft observations in the decades that followed.
Because of the complementary nature of the two kinds of observations, especially formeteorology and cloud–aerosol interaction studies, making RADAR and LIDAR measurements from the same aircraft has been found to be highly valuable. Since the early developments, technology has allowed RADAR observations at higher frequencies and the operation of reliable solid-state laser sources in LIDAR systems. Both RADAR and LIDAR systems have rapidly evolved to include wavelength and polarisation diversity in addition to scanning and high data rate capabilities.
New analysis methods allowmore precise quantification of atmospheric parameters (boundary layer height, wind, temperature, etc.) and composition (water vapour, ozone, etc.), as well as the properties of aerosol particles, clouds, and precipitations. These developments are discussed in the EWG on Lidar and Radar Observations.