The relationship between cloud distribution characteristics and meteorological elements over China.

The meteorological elements in the cloud background field influence and change with the cloud macro and micro characteristics, so it is of great significance to study the relationship between them. Using CALIOP Level 2 VFM products and ERA5 reanalysis data, this paper studies and analyzes the relationship between the distribution characteristics of different types and phases clouds and meteorological elements over China through statistical methods. The results show that: In the two-dimensional probability density function distribution of cloud occurrence probability and relative humidity-temperature, there are two significant high value regions, which can be divided into tropical clouds and temperate clouds.