Collaborative Research: CEDAR: Cross Polar Cap Potential Drop and Convection Studies Using Combined SuperDARN and the Defense Meteorological Satellite Program (DMSP) Data

合作研究：CEDAR：使用 SuperDARN 和国防气象卫星计划 (DMSP) 组合数据进行跨极地盖势降和对流研究

• 批准号: 0228207
• 负责人: Marc Hairston
• 金额: $ 22.89万
• 依托单位: University of Texas at Dallas
• 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: 2002-12-15 至 2006-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0228207&HistoricalAwards=false
• 关键词: Collaborative; Research; CEDAR; Cross; Polar

This is a collaborative research award involving the University of Texas at Dallas and Johns Hopkins University Applied Physics Laboratory. The investigators will use data from the SuperDARN radar network and the Defense Meteorological Satellite Program (DMSP) to study convection in the high latitude ionosphere. Both the SuperDARN radars and the DMSP spacecraft make routine measurements of ionospheric plasma motion, but both suffer from temporal and spatial limitations in their coverage. The study will begin with the calibration and validation of the two data sets, leading to the development of techniques to reconcile the observations. Once that is complete, combined data sets will be used to study the ionospheric response to changes in the interplanetary magnetic field (IMF). Specific questions to be addressed are the saturation of the cross polar cap potential when the IMF is southward, the response time of the convection to changes in the IMF, and convection patterns when the IMF is strongly northward. This work will aid in the development of space weather models which are used to predict conditions in the space environment that affect technological systems, such as electric power, navigation, and communication.

这是一项由德克萨斯大学达拉斯分校和约翰霍普金斯大学应用物理实验室共同参与的合作研究奖项。 研究人员将使用来自 SuperDARN 雷达网络和国防气象卫星计划 (DMSP) 的数据来研究高纬度电离层中的对流。 SuperDARN 雷达和 DMSP 航天器都会对电离层等离子体运动进行常规测量，但两者的覆盖范围都受到时间和空间的限制。 该研究将从校准和验证两个数据集开始，从而开发协调观察结果的技术。 一旦完成，组合数据集将用于研究电离层对行星际磁场（IMF）变化的响应。 需要解决的具体问题是IMF南移时跨极盖势的饱和度、对流对IMF变化的响应时间以及IMF强北移时的对流模式。 这项工作将有助于开发空间天气模型，用于预测影响电力、导航和通信等技术系统的空间环境条件。