Study of polar ionosphere and magnetosphere dynamics based on SuperDARN time series analysis technique

基于SuperDARN时间序列分析技术的极地电离层和磁层动力学研究

• 批准号: 16540410
• 负责人: TSUTSUMI Masaki
• 金额: $ 2.37万
• 依托单位: National Institute of Polar Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16540410/
• 关键词: SuperDARN; Ionosphere and magnetosphere; Polar mesosphere; F-region electric field; Polar mesosphere summer echoes; Meteor winds; High time and range resolutions; Time series observations; 高時間空間分解能観測; 極域電磁圏

In this study we upgraded the SuperDARN time series analysis technique [Yukimatu and Tsutsumi, 2002] by adding new capabilities to improve spatial resolutions, and also developed techniques to observe new targets such as meteors and polar mesosphere summer echoes.1.Two techniques to improve the range resolution were newly added to the SuperDARN operating software; frequency domain interferometer(FDI) and oversampling. These techniques were first applied to meteor echo observations and proved to be useful for the study of polar mesosphere dynamics. It is notable that this meteor observation can be conducted together with the existing SuperDARN F-region observation and does not affect it at all. Network observation of polar mesosphere region is now being sought. The FDI technique was further applied to CUTLASS SuperDARN radars (Iceland and Finland) to study the minute spatial and time characteristics of irregularities which were generated by the ionosphere heating facility located at Tromso.2.We started to develop a multi receiver imaging technique using Syowa station SuperDARN radars. A digital receiver was newly added to each of the 20 antenna outputs. Softwares to control these receivers are being developed to study fine structures of ionospheric echoes.3.Polar mesosphere summer echoes (PMSEs) were studied by developing algorithms to detect them from near range data. Using 15 SuperDARN radars in Arctic and Antarctic regions, the occurrence rates of PMSEs were found to be different between Arctic and Antarctic and also show higher values with increasing latitudes.

在本研究中，我们升级了SuperDARN时间序列分析技术[Yukimatu和Ttsutsumi，2002]，添加了提高空间分辨率的新功能，并开发了观测流星和极地中间层夏季回波等新目标的技术。 1. SuperDARN操作软件中新添加了两项提高距离分辨率的技术；频域干涉仪（FDI）和过采样。这些技术首先应用于流星回波观测，并被证明可用于极地中间层动力学的研究。值得注意的是，本次流星观测可以与现有的SuperDARN F区观测一起进行，完全不影响。目前正在寻求极地中间层区域的网络观测。 FDI技术进一步应用于CUTLASS SuperDARN雷达（冰岛和芬兰），以研究位于特罗姆瑟的电离层加热设施产生的不规则性的微小空间和时间特征。2.我们开始使用Syowa站SuperDARN雷达开发多接收器成像技术。 20 个天线输出中的每一个都新添加了一个数字接收器。正在开发控制这些接收器的软件，以研究电离层回波的精细结构。3.通过开发算法从近距离数据中检测极地中间层夏季回波（PMSE）来研究它们。使用北极和南极地区的 15 个 SuperDARN 雷达，发现北极和南极地区的 PMSE 发生率不同，并且随着纬度的增加，PMSE 的出现率也较高。

项目成果

Extraction of polar mesosphere summer echoes from SuperDARN data

从 SuperDARN 数据中提取极地中间层夏季回波

• 发表时间: 2005
• 期刊: Geophys.Res.Lett. 32, L12801
• 作者: Hosokawa K.;et al.
• 通讯作者: et al.

Neutral atom emission in the direction of the high-latitude magnetopause for northward IMF : Simultaneous observations from IMAGE spacecraft and Super DARN radar

向北IMF的高纬度磁层顶方向的中性原子发射：IMAGE航天器和Super DARN雷达的同时观测

• 发表时间: 2006
• 期刊: Geophysical Research Letters 33
• 作者: Taguchi;S
• 通讯作者: S

Simultaneous observations of the cusp IMAGE Low Energy Neutral Atoms Imager and SuperDARN radar

同时观测尖点 IMAGE 低能中性原子成像仪和 SuperDARN 雷达

• 发表时间: 2004
• 期刊: Adv.Polar Upper Atmos.Res. 18
• 作者: Taguchi;S.;K.Hosokawa;M.Collier;N.-C.Fok;A.Yumimatu;N.Sato;A.Greenwald
• 通讯作者: A.Greenwald

A climatology of tides in the Antarctic mesosphere and lower thermosphere

• DOI: 10.1029/2005jd006803
• 发表时间: 2006-12
• 期刊: Journal of Geophysical Research
• 作者: D. Murphy;J. Forbes;R. Walterscheid;M. Hagan;S. Avery;T. Aso;G. Fraser;D. Fritts;M. Jarvis;A. McDonald;D. Riggin;M. Tsutsumi;R. Vincent

Neutral atom emission in the direction of the high-latitude magnetopause for northward IMF : Simultaneous observations from IMAGE spacecraft and Super DARN radar 2006

向北 IMF 的高纬度磁层顶方向的中性原子发射：IMAGE 航天器和 Super DARN 雷达的同时观测 2006

• 发表时间: 2006
• 期刊: Geophys. Res. Lett. 33
• 作者: S.Taguchi;K.Hosokawa;A.Nakao;M.R.Collier;T.E.Moore;A.Yamazaki;N.Sato;A.S.Yukimatu
• 通讯作者: A.S.Yukimatu