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

• 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
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-05402019/
• 关键词: GPS-TEC; EISCAT radar; Auroral particles; Winds; Svalbard radar; Magnetosphere; Polar ionosphere; Database; GPS; 電離圏; プラズマ圏; 全電子数(TEC); オーロラ域; TECメータ; 電磁気圏

[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

[极光区等离子体的研究]自1993年以来，在挪威特罗姆斯皮大学与极光观测台小组合作，对总电子含量（TEC）进行了观测。TEC已获得从测量的GPS信号之间的传播时间延迟的两个载波的L1和L2，他们使我们有可能调查每天的TEC的变化。能谱的降水粒子已来自与EISCAT雷达在Tromsphi观测到的电子密度分布。从雷达获得的能量谱和直接观察到的DMSP卫星在接近雷达站点的路径之间的比较表明，使用EISCAT雷达的技术相当可靠。[极区中高层大气动力学和化学研究]本文用离子运动资料反演了E区热层风，并计算了E区热层风的温度场。 ...更多信息 n，电子密度和电场与EISCAT雷达观测。比较雷达观测得到的风在安静和扰动条件下显示出的差异，在风的周日和半日模式。本文从理论上研究了中高层大气水汽环流及与之相关的离子化学。【斯瓦尔巴特群岛IS雷达项目研究】与EISCAT科学协会在斯瓦尔巴特群岛IS雷达项目上的合作取得了进展。1994年8月31日至9月3日在日本举行的“日本-EISCAT极地电离层研讨会”的会议记录已于1995年出版。1995年，日本政府批准向国家极地研究所提供建造斯瓦尔巴特群岛雷达天线的财政支助。我们与NIPR合作，为日本加入EISCAT科学协会做准备。已开发出用于处理GPS-TEC和EISCAT雷达数据的数据分析系统，数据库正在建设中。少

项目成果

藤井 良一: "Electrodynamic parameters in the nighttime sector during auroral substorms" Journal of Geophysical Research. (in press). (1994)

Ryoichi Fujii：“极光亚暴期间夜间区域的电动参数”地球物理研究杂志（1994 年）。

Nozawa,S and A.Brekke: "Studies of the E region neutral wind in the disturbed auroral ionosphere" Journal of Geophysical Research. 100. 14,717-14,734 (1995)

Nozawa,S 和 A.Brekke：“受干扰的极光电离层中 E 区中性风的研究”地球物理研究杂志。

Matuura, N: "Mechanisms on the solar wind-magnetosphere interactions : Importance of the Svalbard radar" J.Geomag.Geoelectr.47. 721-733 (1995)

Matuura，N：“太阳风-磁层相互作用的机制：斯瓦尔巴雷达的重要性”J.Geomag.Geolectr.47。

Matuura,N.,他: "Japan-EISCAT collaboration on the Svalbard radar : Scientific significance" Journal of Geomagnetism and Geoelectricity. 47. 681-684 (1995)

Matsuura, N. 等人：“日本与 EISCAT 在斯瓦尔巴群岛雷达上的合作：科学意义”《地磁与地电杂志》47. 681-684 (1995)

Brekke,A.: "Studies of the E-region neutral wind in the quiet auroral ionosphere" Jounal of Geophysical Research. 99. 8801-8825 (1994)

Brekke,A.：“安静极光电离层中 E 区中性风的研究”地球物理研究杂志。