衛星画像の種類blue visible infra+ の違いと、何を知るのに有効かを教えてください
Blue is a picture in non-real colors which allows to get the same rendering at day and night.
Visible is what ‘see’ the satellite. It gives true colors during the day and infrared picture during the night.
Infra+ is an infrared picture but colorised to give cloud tops temperature. This temperature gives an idea of the altitude of the cloud tops and so allows predicting the possibility of strong storm.