Method for analyzing effect of hygroscopic seeding material sprayed on ground aerosol concentration through airborne cloud seeding experiment

A server comprising:

• a memory for driving a numerical cloud seeding model and calculating and storing results;
• and
• a processor electrically connected to the memory,
• wherein the processor analyzes an effect of a hygroscopic seeding material sprayed by an aircraft through an airborne cloud seeding experiment on ground aerosol concentrations, wherein in analyzing the effect of the hygroscopic seeding material, the processor:
• inputs information of an airborne cloud seeding experiment for spraying a hygroscopic seeding material and information of meteorological fields to the numerical cloud seeding model of the memory, wherein the information of the seeding spraying comprises seeding time, seeding rate, and spraying position, and the spraying position comprises grid information, and the information of the meteorological fields and the information of the seeding spraying corresponds to an execution date of the airborne cloud seeding experiment,
• executes a hygroscopic cloud seeding simulation based on the information of the meteorological fields and the information of the seeding spraying using the numerical cloud seeding model, wherein in the executing of the hygroscopic cloud seeding simulation, the numerical cloud seeding model models absorption of the hygroscopic seeding material by cloud droplets comprised in the clouds, auto-conversion of the cloud droplets into a different state, and activation of the cloud droplets,
• calculates a mass concentration of the hygroscopic seeding material on the ground with respect to the execution date of the airborne cloud seeding experiment in which the aircraft sprayed the hygroscopic seeding material onto the clouds, based on results of the hygroscopic cloud seeding simulation,
• compares the calculated mass concentration of the hygroscopic seeding material on the ground, as calculated based on the results of the hygroscopic cloud seeding simulation executed using the numerical cloud seeding model, and mass concentrations of aerosols observed on an execution date of the airborne cloud seeding experiment,
• calculates a contribution degree of the hygroscopic seeding material to mass concentrations of aerosols, based on the comparison,
• determines a safety level associated with the airborne cloud seeding experiment with respect to the ground based on the calculated contribution degree of the hygroscopic seeding material on the ground, and
• generates and outputs a visual representation of the hygroscopic seeding material on the ground with respect to time, based on the hygroscopic cloud seeding simulation, wherein the visual representation comprises mean values and maximum values of the calculated mass concentration of the hygroscopic seeding material on the ground with respect to time.