@article{oai:nipr.repo.nii.ac.jp:00004119,
 author = {Tokumaru, Munetoshi and Kawasaki, Kazuyoshi and Ejiri, Masaki and Yamagishi, Hisao and Sato, Natsuo},
 journal = {Proceedings of the NIPR Symposium on Upper Atmosphere Physics},
 month = {May},
 note = {P(論文), The acquisition and transfer system of observational data of Syowa Station using INMARSAT link have been developed. Using this system, near-realtime data of Antarctica become available in Japan. To apply these data to the space weather forecast, J-index is introduced for a realtime evaluation of geomagnetic activities, which showed a good correlation with the K-indices.},
 pages = {26--30},
 title = {Near-realtime data collection from Syowa Station and its utilizationfor space weather forecast (extended abstract)},
 volume = {5},
 year = {1992}
}