For this purpose, there are weather stations and weather stations that specialize in studying the weather, and airplanes and ships are also used.
In addition, cloud images from Himawari, a weather satellite orbiting the earth, and radar surveys are also used as references. We also conduct surveys using fully-automated machines called AMeDAS, which are located at 1,300 locations throughout Japan.
Based on these data, weather maps are created, weather changes are examined, and weather forecasts are issued. The forecasts are made by researchers specializing in weather, but recently, computers have been used to create weather maps by calculation and then issue weather forecasts.