文章基本信息

标题：New Ages of Operational Space Weather Forecast in Japan
本地全文：下载
作者：Tsutomu Nagatsuma
期刊名称：Space Weather
印刷版ISSN：1542-7390
出版年度：2013
卷号：11
期号：5
页码：207-210
DOI：10.1002/swe.20050
语种：English
出版社：American Geophysical Union
摘要：The origin of Japanese space weather forecast comes from the forecast of radio wave broadcasts which provide current and future conditions of radio wave propagation for telecommunications. The Japanese radio wave forecast service began in the 1940s. To improve the reliability of long-distance telecommunications by radio waves, the subject “solar activity effect to the ionosphere” was exten- sively studied in the 1950s. During these research activi- ties, the relationships between radio propagation and solar microwave bursts and sudden ionospheric distur- bance were examined. Further, polar cap absorption events were studied and their relationships with type IV solar radio bursts were discovered. Present-day space weather research and operations in Japan originated from this positive interaction between basic research and practical needs in this earlier era [Nishida, 2010].