While marveling at views of iconic Mount Fuji, Hiroyuki Kusaka became intrigued when seeing the changing cloud patterns over the summit.

Tsukuba, Japan—Characteristic clouds, such as cap clouds, Tsurushi clouds (mountain-wave lenticular clouds), and Hata clouds (similar to banner clouds but meteorologically different), are frequently ...

In 1927, meteorologist Masanao Abe (1891-1966) established the Abe Cloud Air Current Research Observatory on the heights of Gotemba in Shizuoka Prefecture. Until 1942, through his contributions to ...

A new study found tiny microplastics — sized between 7.1 to 94.6 micrometers — in cloud water collected from high-altitude summits in Japan. The researchers suggest that microplastics could therefore ...