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Quasi-real time derivation of geomagnetic AE and Dst indices and forecasting of geomagnetic storm variations

地磁AE和Dst指数的准实时推导及地磁暴变化的预报

基本信息

批准号：
09354005
负责人：
ARAKI Toru
金额：
$ 19.07万
依托单位：
KYOTO UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

项目摘要

The purpose of this research project are (1) to improve and to promote quasi-real time derivation of the geomagnetic Dst and AE(Auroral Electrojet) indices which play important roles in studies of energy flow to the magnetosphere from the solar wind, (2) to obtain deeper insight to physics of solar terrestrial events and to make foundation of nowcasting and forecasting geomagnetic storm variations.We have obtained the following results from the research project.1. Improvement of collection of geomagnetic 1 min values;(1) We negotiated with related organizations in Russia and the United States to improve data collection from the Russian AE stations,(2) Negotiation was also made with Indian authorities to promote satellite relay of geomagnetic data from Alibag observatory. It has not been achieved yet but, instead, data acquisition through Internet was realized.(3) We promoted geomagnetic data collection by the INTERMAGNET project.2. Construction of geomagnetic databases : We accelerated database construction of geomagnetic 1 sec values and 1 min values.3. Promotion of derivation of QL geomagnetic indices : Derivation of the quick-look (QL) Dst and AE indices has been improved and promoted. They are open to public on our WWW home page. More than 10**5 accesses per month has been observed to our databases.4. Several studies have been made on geomagnetic storms and detection of them.

这一研究项目的目的是(1)改进和促进地磁DST和AE(极光电喷流)指数的准实时推导，这两个指数在太阳风向磁层的能量流动研究中起着重要作用；(2)加深对日地事件物理的了解，为近距离预报和预报地磁风暴变化奠定基础。改进了地磁1分钟值的收集；(1)我们与俄罗斯和美国的相关组织进行了谈判，以改进从俄罗斯AE站收集的数据；(2)还与印度当局进行了谈判，以促进AliBag天文台的地磁数据的卫星转播。目前还没有实现，但已经实现了通过Internet进行数据采集。(3)通过INTERMAGNET项目推动了地磁数据的采集。地磁数据库建设：加快推进地磁1秒、1分钟数据库建设。改进和促进了QL地磁指数的推导：改进和促进了快视(QL)DST和AE指数的推导。它们在我们的WWW主页上向公众开放。观察到每月对我们数据库的访问次数超过10**5次。已经对地磁暴及其探测进行了几项研究。