Abstract:Based on the NCEP/NCAR reanalysis data, satellite, radar and aircraft observation data, the artificial precipitation enhancement conditions of the 5 November 2018 precipitation process in Hennan Pro-vince were analyzed. The results show that the precipitation process was mainly affected by the low-level shear line and the surface cold front. The operational area of the aircraft had a better water vapor condition and a thick ice surface supersaturated layer, and the dynamic conditions were conducive to promoting the development of precipitation. The aircraft operating area was almost full of stratified hybrid clouds, and the cloud system was in a developing stage. In addition, the relationship between the supercooled water area of satellite inversion and the number concentration of the aircraft detection particles was emphatically analyzed. It was found that when using the FY-4A satellite visible light channel, 3.7 μm channel and infrared channel data to conduct the three-color synthesis analysis on the supercooled water in the cloud, the number concentration of particles detected by the aerosol particle probe is also greater than 20 cm-3. They have a good correspondence, indicating that the method analyzing supercooled water in the cloud by the three-color synthesis could be applied to one of the selection conditions of the artificial precipitation enhancement area.