Radar Studies of the Low Latitude Ionosphere

低纬度电离层的雷达研究

• 批准号: 9423479
• 负责人: Bela Fejer
• 金额: $ 30.6万
• 依托单位: Utah State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-04-15 至 1998-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9423479&HistoricalAwards=false
• 关键词: Radar; Studies; Low; Latitude; Ionosphere

The PI will continue his studies of the low latitude ionosphere using incoherent radar measurements, global convection, and thermospheric and ionospheric numerical models. These studies' objectives are basic understanding of electrodynamic processes controlling the low latitude and equatorial ionospheres, and developing quiet time global climatological and storm time predictive analytical ionospheric electric field models. The PIs will use extensive radar measurements from Jicamarca and Arecibo, and auroral magnetic field data to model the response of the low and equatorial ionosphere-to-magnetosphere disturbances. Fejer will apply new data analysis procedures to examine the low latitude electrodynamic effects associated with high latitude convection enhancements and substorms, also with storm time wind driven electric fields, followed by large energy depositions into the high latitude ionosphere. High resolution experiments carried out at Arecibo and Jicamarca will use significantly more data taking and analysis procedures to study coupling of energy and momentum from lower altitudes into the low latitude ionosphere. Finally, the PIs will study effects of middle atmospheric and mesospheric processes on the variability of quiet-time equatorial plasma drifts using long period observational campaigns.***

PI将继续使用非相干雷达测量、全球对流、热层和电离层数值模型对低纬度电离层进行研究。这些研究的目标是对控制低纬度和赤道电离层的电动力学过程有基本的了解，并建立静止时全球气候和风暴时电离层电场预测分析模型。pi将使用来自Jicamarca和Arecibo的广泛雷达测量，以及极光磁场数据来模拟低空和赤道电离层对磁层干扰的响应。Fejer将应用新的数据分析程序来研究与高纬度对流增强和亚暴相关的低纬度电动力学效应，以及风暴时间风驱动的电场，随后大量能量沉积到高纬度电离层。在阿雷西博和吉马卡进行的高分辨率实验将使用更多的数据采集和分析程序来研究从较低海拔到低纬度电离层的能量和动量耦合。最后，PIs将利用长周期观测活动研究大气中层和中间层过程对赤道静时等离子体漂移变异性的影响