Disclosed herein are a method and system for automatically analyzing the simulated influence time zone of a dispersed material for artificial precipitation in a time-series manner. The method includes a first step for executing, by a numerical simulation execution unit, numerical simulations on an artificial precipitation experiment according to a dispersed seeding material, a second step for calculating, by a spread field information calculation unit, spread field information about the seeding material from the results of the numerical simulations, a third step for calculating, by a point dispersion time range calculation unit, a spread time range of the seeding material for one or more observation points based on the calculated spread field information about the seeding material, and a fourth step for displaying, by a time-series display unit, the spread time range of the seeding material in observation data time series at each of the observation points.
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