Kagoshima Observatory is located in southern Kyushu, near Sakurajima volcano. Routine observations for the study of Earth's ionospheric, upper atmospheric, and electromagnetic environment are being carried out by using ELF/VLF receivers, magnetometers, and all-sky cameras in collaboration with other universities.
Kagoshima Observatory near Sakurajima volcano.
ELF/VLF antennas and geomagnetic observation hut.
All-sky CCD camera (lower right), fish-eye lens (upper right) for the camera, and observation hut (left). The camera can automatically observe nightglow from various atoms and molecules at altitudes 80-100 km and 200-300 km in the upper atmosphere.
Wavy structures with scales of 15-20 km at altitude 95 km, as detected with a 557.7 nm all-sky camera at Sata.
Giant plasma bubbles (dark regions) in the ionosphere observed simultaneously with 630 nm all-sky cameras at Sata (Kagoshima prefecture) and Darwin (Australian geomagnetic conjugate point of Sata). The apex altitude of the bubbles is about 1700 km over the geomagnetic equator.