GEM Postdoc: Characteristics of Ultra Low Frequency (ULF) Waves Associated with Electron Acceleration to Relativistic Energies

GEM 博士后：与电子加速相对论能量相关的超低频 (ULF) 波的特征

• 批准号: 0924919
• 负责人: Joseph Baker
• 金额: $ 19.49万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-10-01 至 2011-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0924919&HistoricalAwards=false
• 关键词: GEM; Postdoc; Characteristics; Ultra; Low

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The ultimate objective of this project is to determine the acceleration mechanism responsible for strong increases of radiation belt electron fluxes during geomagnetic storms. The project will calculate Ultra Low Frequency (ULF) wave power from ground-based magnetometer and Super Dual Auroral Radar Network (SuperDARN) radar data for specific time intervals during which relativistic electrons in the outer radiation belt underwent significant flux enhancements and there was strong ULF wave power. This will allow for the test two theories of ULF radial diffusion, one that relies on field line resonance frequencies and another that does not. This is a 2-year postdoc-led project that will support the development of an independent research career for a young scientist at Virginia Tech. The understanding developed through this research will also benefit the National Space Weather program by improving our understanding of the near-Earth radiation environment during storms.

该奖项是根据2009年《美国复苏与再投资法》（公法111-5）资助的。该项目的最终目标是确定导致地磁风暴期间辐射带电子通量强大增加的加速机制。该项目将计算从地面磁力计和超级双极光雷达网络（Superdarn）雷达数据的超低频率（ULF）波功率，用于特定的时间间隔，在此期间，外部辐射带中的相对论电子进行了显着的通量增强，并且具有强大的ULF波浪功率。这将允许测试ULF径向扩散的两种理论，一种依赖于场线的共振频率，另一种依赖于野外线的扩散。 这是一个为期2年的博士后领导的项目，它将支持弗吉尼亚理工大学的一位年轻科学家的独立研究生涯的发展。通过这项研究发展的理解还将通过提高我们对暴风雨期间近地辐射环境的理解来使国家太空天气计划受益。