Advanced Modular Incoherent Scatter Radar (AMISR) Graduate Studies: High-Latitude E-region Electrodynamics

高级模块化非相干散射雷达 (AMISR) 研究生课程：高纬度 E 区电动力学

• 批准号: 0538926
• 负责人: Jeffrey Thayer
• 金额: $ 22.78万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0538926&HistoricalAwards=false
• 关键词: Advanced; Modular; Incoherent; Scatter; Radar

The investigators will study E-region electrodynamics at high latitudes using the Advanced Modular Incoherent Scatter Radar (AMISR) systems in Alaska and Resolute Bay. The research will form the foundation for a PhD thesis by a University of Colorado aerospace engineering graduate student. The objective is to exploit the new AMISR radar system to provide height-resolved observations of the electrodynamic properties of the E-region, including electron density, ion motion, current density, Joule heating rates and neutral winds. The unique capabilities of the AMISR system will also help resolve spatial-temporal ambiguities that presently limit these types of studies. The research will focus on two specific science questions: (1) At what altitude does high-latitude ion motion perpendicular to the magnetic field begin to deviate from the convection direction, and how do the ions behave below this altitude, and (2) Can we learn more about upper E region neutral winds using a novel approach to incoherent scatter radar measurements. The study involves the determination of vector velocity fields from E and F region line-of-sight AMISR measurements. These velocity fields will be used to estimate E-region electrodynamic parameters, including the neutral wind. The research will promote teaching, training and learning, and will provide the opportunity for the advancement of a woman engineer/scientist. The techniques will be incorporated into the curriculum of a graduate course in Radar and Remote Sensing. Data acquired will be rapidly and broadly disseminated and new peer-reviewed research will be published that will enhance scientific understanding of the polar E region ionosphere. Societal benefits will result from improvements in the ability to specify and predict space weather. The observational techniques developed for AMISR will be applied to future rocket launches from Poker Flat, Alaska.

研究人员将使用阿拉斯加和共线湾的高级模块化散射雷达（AMISR）系统在高纬度上研究电子区域电动力学。 这项研究将构成科罗拉多大学航空工程大学研究生的博士学位论文基础。 目的是利用新的AMISR雷达系统来提供对电子区域电动动力特性的高度分辨观测，包括电子密度，离子运动，电流密度，焦耳加热速率和中性风。 AMISR系统的独特功能还将有助于解决目前限制这些类型研究的时空歧义。 该研究将重点介绍两个特定的科学问题：（1）垂直于磁场的高纬度离子运动在什么高度上开始偏离对流方向，以及离子如何在此高度以下行为，（2）我们可以使用新的E区中性风，使用新颖的区域中性风来了解一种新颖的方法来进行新型的散射散射雷达测量。 该研究涉及从E和F区域视线AMISR测量值确定矢量速度场。 这些速度场将用于估计电子区域电动参数，包括中性风。 该研究将促进教学，培训和学习，并为女工程师/科学家的发展提供机会。 这些技术将纳入雷达和遥感研究生课程的课程中。 获取的数据将迅速且广泛传播，并将发布新的同行评审研究，以增强对极地E区电离层的科学理解。 社会利益将是由于指定和预测太空天气的能力的提高而产生的。 为AMISR开发的观察技术将应用于阿拉斯加扑克公寓的未来火箭发射。