Relation between Changes in the Arctic Middle and Upper Atmosphere and Influences of Solar Particles

北极中高层大气变化与太阳粒子影响的关系

基本信息

批准号：
05402019
负责人：
MATUURA Nobuo
金额：
$ 10.82万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (A)
财政年份：
1993
资助国家：
日本
起止时间：
1993 至 1995
项目状态：
已结题

项目摘要

[Study on Plasma in the Auroral Region]Observation of total electron content (TEC) has been carried out since 1993 at University of Tromsphi, Norway under collaboration with the group of the Auroral Observatory, University of Tromsphi. The TEC has been obtained from measurement of difference in propagation time delays between GPS signals on the two carrier radio waves of L1 and L2, and they have made us possible to investigate day-to-day variabilities in TEC.Energy spectra of precipitating particles have been derived from the electron density profiles observed with the EISCAT radar at Tromsphi. Comparison between the energy spectra obtained from the radar and those directly observed with the DMSP satellite on the paths close to the radar site indicates a reasonably well reliablity of the technique using the EISCAT radar.[Study on Dynamics and Chemistry of the Middle and Upper Atmosphere in the Polar Region]Thermospheric winds in the E-region have been derived from the data of ion motio … More n, electron density and electric field observed with the EISCAT radar. Comparison of the winds obtained from the radar observations during both in quiet and disturbed conditions shows differences in winds of the diurnal and semi-diurnal modes. Circulation of water vapor and related ion chemistry in the middle and upper atmosphere have been theoretically studied.[Study on Svalbard IS Radar Project]Collaboration with the EISCAT Scientific Association on the Svalbard IS Radar Project has been made progressed. Proceedings of the 'Japan-EISCAT Symposium on the Polar Ionosphere' held in Japan on August 31-September 3,1994 have been published in 1995. Financial support by the Japanese Government for construction of an antenna of the Svalbard radar has been approved in 1995 to the National Institute of Polar Research. We have collaborated with the NIPR in preparation for the joining of Japan to the EISCAT Scientific Association. A data analysis system for processing the data of GPS-TEC and EISCAT radar has been developed and the database is under construction. Less

[关于极光区域的血浆研究]自1993年以来，对总电子含量（TEC）的观察（TEC）与特罗姆菲大学的Auroral天文台合作进行了。 TEC是通过测量L1和L2的两个载波无线电波之间的GPS信号之间的传播时间延迟差异获得的，它们使我们有可能调查TEC的日常变化。在TROMSPHI处观察到的Esiscat radar radar radar观察到了沉淀颗粒的Energy量变化。从雷达获得的能量光谱与直接观察到的DMSP卫星在接近雷达位点的路径上观察到的能量光谱之间的比较表明，使用EISCAT雷达，技术的可靠性相当好。 Eiscat雷达。在安静和干扰条件下从雷达观测中获得的风显示出昼夜和半衰变模式的风差异。理论上已经研究了中大气和上层大气中的水蒸气和相关离子化学的循环。[关于Svalbard的研究是雷达项目]与Svalbard的Eiscat Scientific Association的合作，已经取得了进步。 1995年8月31日至1994年8月31日在日本举行的“日本 - EISCAT关于极地离子层”研讨会的论文集。1995年，日本政府在1995年批准了日本政府建设Svalbard Radar的天线的财政支持。我们已经与NIPR合作，为日本加入Eiscat科学协会做准备。已经开发了用于处理GPS-TEC和EISCAT雷达数据的数据分析系统，并且正在构建数据库。较少的