As observed in Africa and other continents, storm height over the land higher than the sea. This is due to the fact that ground surfaces tend to be heated and convections are more easily developed over the land than over the sea.

The storm height gradually increased in the south Pacific as the distance from the coast of South America increased. Such trends have been partly reported from ship observations, however this is the first observation on such a large scale.

In addition, rainfall is observed in high elevation areas such as the Tibetan plateau. The latent heat release at high elevations with process of rain genelation has a considerable effect on the monsoon and other atmospheric circulations.

While it has been possible to observe cloud height by using weather satellites, PR directly observes the rain top height inside clouds for the first time. It is expected to continue not only to scientific research of atmosphere but also to various fields such as the design of satellite communication systems affected by rainfall attenuation.