Physics Department, Faculty of Education, Kagoshima University, Kagoshima 890, Japan (*Present address: Mashiki Middle School, Mashiki-cho, Kumamoto, 861-22 Japan)
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| Introduction |
In this home page, photo and video pictures of volcanic clouds from Sakurajima Volcano are presented in the form of JPEG and MPEG images. The rise, flow and dispersion of the volcanic clouds may provide precious informations on atmospheric science as tracer experiments with a gigantic scale, as well as the indication of volcanic activity. We are planning to present in near future, the images of other volcanoes such as Aso and Unzen, including other aspects observed from the ground. As for the satellite images, see the home page of SiNG-Kagoshima.
| Sakurajima Volcano |
Mt, Sakurajima in southern Kyushu, Japan, has been keeping high volcanic activities to eject ash clouds since 1955. Such a long persistance of the activities is very peculiar among the volcanoes in the world.
Mt. Sakurajima is an isolated mountain of volcanic half-island in Kagoshima Bay. The summit of Sakurajima is composed of 2 km sierra, with the highest peak Kitadake(1117 m) at the north. An active crater is open at the southern peak Minamidake(1040 m).
Observation points
Most of the photos and video records were taken from 9.8 km WSW from the crater, unless specifically noted.
| Photo images in JPEG |
Most of the JPEG images are converted from photo pictures taken by 35 mm cameras with the lens of f = 28-80 mm, and 17 mm. In some cases, a semi-fish eye converter lens was attached, as seen from the distortion of straight objects.
| MPEG movies |
Most of the MPEG movies of about 10 sec. are the results of interval records of time-lapse mode. As the records are already condensed in time, they exhibit quick and dynamic behaviors of the clouds. As the size of one MPEG file exceeds a few hundred KB, please click to see it when you have enough time with respect to your link condition of the internet. We suggest to avoid the busy time around 10-18 JST, i.e., 1-9 UT, in week days. After the download, please select appropriate display mode for enough size in the playback.
| Copyrights |
All rights are reserved. If you have any problem, please cosult with the address below. This page is link-free. We are happy to be informed also to the same address when you make a link.
Authors of this homepage:
K. KINOSHITA, C. KANAGAKI*, and H. TOGOSHI
Physics Department, Faculty of Education, Kagoshima University, Kagoshima 890, Japan (*Present address: Mashiki Middle School, Mashiki-cho, Kumamoto, 861-22 Japan)