CAREER: Revealing the Connection between Pulsating Aurora and the Dynamics of the Inner Magnetosphere

职业：揭示脉动极光与内磁层动力学之间的联系

• 批准号: 2045016
• 负责人: Allison Jaynes
• 金额: $ 68.19万
• 依托单位: University of Iowa
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-02-01 至 2026-01-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2045016&HistoricalAwards=false
• 关键词: CAREER; Revealing; Connection; between; Pulsating

Pulsating aurora occur in large patches across the sky, turning their lit-up patterns on and off. This distinct type of aurora is produced through wave-particle scattering in the equatorial magnetosphere. There are many questions remaining about how this process occurs and how it is related to substorm activity, which the project will address. The project will support research for an early career female PI and outreach programs targeted at retaining women and under-represented minorities in STEM fields, primarily through a Space Physics & Astronomy Research Kamp (SPARK) for local high school students and through a peer mentorship and recruitment program called Prairie States Partnership in Physics. The project aims to address three open questions related to pulsating aurorae: (1) What is the basic process that causes the pulsations?; (2) How does the pulsating aurora process tie into substorm activity and radiation belt/ring current dynamics?; and (3) What is the spatial extent of pulsating aurora events and what conditions affect that extent? These questions will be addressed through a creative use of machine learning, ground-based imager observations, and spacecraft data during conjunction times. The successful closure of these questions will represent a leap forward in our understanding of pulsating aurora and magnetosphere-ionosphere coupling.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

脉动极光发生在天空上的大片斑块中，开关打开和关闭点亮的图案。这种不同类型的极光是通过赤道磁层中的波粒子散射产生的。关于此过程的发生以及该项目将解决的问题的关系，还有很多问题。该项目将支持对早期职业女性PI的研究和旨在保留妇女和代表性不足的STEM领域的宣传计划，主要是通过针对当地高中生的太空物理与天文学研究KAMP（SPARK）以及通过Pereer Contorship和招聘计划，称为Prairie State Pharterics in Physics的Priarie State Parterhips。该项目旨在解决与脉动极光有关的三个开放问题：（1）导致脉动的基本过程是什么？ （2）脉动极光过程如何将脉冲活性和辐射带/环电流动力学融合在一起？ （3）脉动极光事件的空间范围是多少？这些问题将通过对机器学习，基于地面成像仪的观察和航天器数据的创造性使用来解决。这些问题的成功结束将代表我们对脉动极光和磁层 - 离子层耦合的理解。该奖项反映了NSF的法定任务，并被认为是通过基金会的智力优点和更广泛影响的审查标准通过评估来获得支持的。

项目成果

Substorm activity as a driver of energetic pulsating aurora

亚暴活动是能量脉动极光的驱动力

• DOI: 10.3389/fspas.2022.1032552
• 发表时间: 2022
• 期刊: Frontiers in Astronomy and Space Sciences
• 影响因子: 3
• 作者: Troyer, Riley N.;Jaynes, Allison N.;Kaeppler, Stephen R.;Varney, Roger H.;Reimer, Ashton S.;Jones, Sarah L.
• 通讯作者: Jones, Sarah L.