Incoherent Scatter Radar Studies of the Equatorial Ionosphere at Jicamarca

吉卡马卡赤道电离层的非相干散射雷达研究

• 批准号: 0215246
• 负责人: Erhan Kudeki
• 金额: --
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-01 至 2009-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0215246&HistoricalAwards=false
• 关键词: Incoherent; Scatter; Radar; Studies; Equatorial

The project aims to improve the capabilities of the Jicamarca incoherent scatter radar for equatorial F-region observations via the development of a new observing/signal-processing mode based on spectral fitting and magneto-ionic differential-phase measurements: With radar beams pointed perpendicular to B, self- and cross-spectra of O- and X-mode incoherent scatter returns collected with orthogonal dipole pairs and a pair of north-south displayed dipole arrays will be fitted to a forward theory model to infer F-region plasma drifts, densities, and electron and ion temperatures with 5 min and 15 km time and height resolutions. The inversion procedure will also make use of simultaneously collected ionosonde data and furthermore will be capable of F-region plasma density measurements during equatorial spread F conditions. The project will constitute an excellent training ground for graduate students on ionospheric propagation and incoherent scatter theories and will furthermore provide an opportunity for stringent tests of the F-region incoherent scatter theory in a relatively unexplored parameter regime (small aspect angles).

该项目旨在通过开发一种基于频谱拟合和磁离子微分相位测量的新的观测/信号处理模式，提高Jicamarca非相干散射雷达对赤道F区进行观测的能力：当雷达波束垂直指向B时，自谱和交叉谱的O和X模式非相干散射返回收集正交偶极子对和一对北-向南显示的偶极阵列将适合于前向理论模型，以推断具有5分钟和15公里时间和高度分辨率的F区等离子体漂移、密度以及电子和离子温度。反演程序还将利用同时收集的电离层探测仪数据，而且能够在赤道扩展F条件下测量F区等离子体密度。该项目将为研究生提供电离层传播和非相干散射理论方面的一个极好的培训基地，并将进一步提供一个机会，在一个相对未经探索的参数范围（小视角）内对F区非相干散射理论进行严格的测试。