Improvement of Acquisition and Transmission of Geomagnetic Data in Russian AE Stations and Acceleration of AE Index Derivation

极光电喷流指数是考虑太阳风输入到磁层的重要地磁指数。它是由京都大学地磁和空间磁学数据分析中心利用沿极光带的12个地磁站的数据导出的，并通过数据丛书和京都地磁WDC-C2的www主页向公众开放。由于索引的使用在科学及其应用中都是必不可少的，许多研究人员希望能尽快发布索引。但是，由于俄罗斯4个声发射台站在获取和传输地磁数据方面存在困难，指数的推导工作已大大推迟。目前还没有得出1988年下半年以后的指数。本研究项目的目的是通过改善俄罗斯声发射台站的技术状况和通过日本气象卫星GMS发展地磁数据传输系统来加速声发射派生。该项目与INTERMAGNET项目合作进行，INTERMAGNET项目在准实时的基础上采集全球地磁1 min值。同时也得到了国际科研项目“地磁卫星观测数据联合分析”（项目No.08044072）的部分资助。主要成果如下：(1)实现了7个声发射台站地磁数据的准实时采集；(2)启动了快速声发射指数的推导。(3)出版了1990年和1993年临时声发射指数数据手册；(4)研制了通过GMS卫星传输数据的系统；(5)解决了通信线路传输地磁数据的若干技术问题。作为本研究的副产品，我们可以启动20多个地磁观测站的准实时数据采集和Quick-look Dst指数的推导。

The AE(Auroral Electrojet)Index is an important geomagnetic index in consideration of solar wind energy input to the magnetosphere. It is derived in the Data Analysis Center for Geomagnetism and Space Magnetism, Kyoto University by using data from 12 geomagnetic stations along the auroral zone and open to public through data book series and the www home page of WDC-C2 for Geomagnetism, Kyoto. Since use of the index is essential both in science and its application, many investigators expect quick release of the index. Derivation of the index, however, has been much delayd because of difficlties in acquisition and transmission of geomagnetic data at 4 Russian AE stations. At present the index after last half of 1988 has not been derived.The purpose of this research project was to accelerate AE derivation by improving technical situation in the Russian AE stations and developping the geomagnetic data transmission system via the Japanese meteorological satellite, GMS.The project has proceeded in cooperation with the INTERMAGNET project in which geomagnetic 1 min values are g1oba11y collected on quasi-real time basis.. It is also partly supported by the grant-in-aid for the international research project 'Joint Analysis of Oersted Geomagnetic Satellite Data' (Project No.08044072) .The followins are achievements of this reasearch project(1)Quasi-real time acquisition of geomagnetic data from 7 AE stations was realized,(2)Derivation of the quick-1ook AE index was started. It is publicized through the internet home page,(3)Data books for provisional AE index for 1990 and 1993 were published,(4)System for data transmission via the GMS satellite was deve1oped,(5)Several technical problems of geomagnetic data transmission through communication line were solved.As by-products of this reserach, we could start quasi-real time data acquisition from more than 20 geomagnetic observatories and derivation of Quick-look Dst index.