Characterizing Mesoscale Thermospheric F-region Winds Associated with Quasi-steady and Transient Nightside Auroral Arcs

表征与准稳态和瞬态夜侧极光弧相关的中尺度热层 F 区风

• 批准号: 2331593
• 负责人: Ying Zou
• 金额: $ 41.48万
• 依托单位: Johns Hopkins University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-05-01 至 2024-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2331593&HistoricalAwards=false
• 关键词: Characterizing; Mesoscale; Thermospheric; region; Winds

The magnetosphere is a leading source of auroral energy and momentum transport within the high-latitude thermosphere. Winds at these so-called 'meso' scales play a crucial role in the transport processes, yet have never been systematically characterized due to lack of observations. The PIs will statistically catalog mesoscale F-region (150-600 km above Earth?s surface) wind occurrences, structure and evolution. The proposed efforts leverage substantial NSF assets to lay the ground for inferring winds from auroral morphology. This work will inform efforts to model magnetosphere-ionosphere-thermosphere interaction at mesoscales. Its broader impacts include support for young scientists and a female postdoc, and publicizing auroral events. The team will categorize mesoscale winds according to different auroral arcs and geomagnetic and solar conditions. They will synergize European satellite wind data with several datasets that are closely spaced and/or observe common volumes over Alaska and western Canada. The spatial scales and direction of thermospheric winds provide information on underlying forcing, and serve as indicators of the efficiency of ionosphere-thermosphere 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.

磁层是高纬度热层内的极光能和动量转运的主要来源。这些所谓的“中索”量表的风在运输过程中起着至关重要的作用，但由于缺乏观察结果，从未系统地表征。 PIS在统计上将目录中尺度的F-Region（地球表面150-600 km）风发生，结构和进化。拟议的努力利用了大量的NSF资产为从极光形态推断风的基础。这项工作将为对中尺度上的磁层 - 离子层 - 热球相互作用进行建模努力。它的更广泛的影响包括对年轻科学家和女性博士后的支持，以及宣传极光事件。该团队将根据不同的极光弧以及地磁和太阳条件对中尺度风进行分类。他们将与几个紧密间隔和/或观察到阿拉斯加和加拿大西部的几个数据集协同欧洲卫星风数据。热层风的空间尺度和方向提供了有关基础强迫的信息，并作为电离层 - 心痛耦合效率的指标。这奖反映了NSF的法定任务，并被认为是值得通过基金会的知识分子和更广泛的影响来通过评估来支持的。审查标准。

项目成果

Mesoscale F Region Neutral Winds Associated With Quasi-steady and Transient Nightside Auroral Forms

与准稳态和瞬变夜边极光形态相关的中尺度 F 区中性风

• DOI: 10.1029/2018ja025457
• 发表时间: 2018
• 期刊: Journal of Geophysical Research: Space Physics
• 作者: Zou, Ying;Nishimura, Yukitoshi;Lyons, Larry;Conde, Mark;Varney, Roger;Angelopoulos, Vassilis;Mende, Stephen
• 通讯作者: Mende, Stephen

Ionospheric Plasma Density Gradients Associated With Night‐Side Energetic Electron Precipitation

• DOI: 10.1029/2023gl105630
• 发表时间: 2023-11
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Xiao‐jia Zhang;X. Meng;A. Artemyev;Ying Zou;D. Mourenas

Auroral Drivers of Large dB∕dt During Geomagnetic Storms

地磁风暴期间大 dBâdt 的极光驱动因素

• DOI: 10.1029/2022sw003121
• 发表时间: 2022
• 期刊: Space Weather
• 影响因子: 3.7
• 作者: Zou, Ying;Dowell, Caleb;Ferdousi, Banafsheh;Lyons, Larry R.;Liu, Jiang
• 通讯作者: Liu, Jiang

Neutral Wind Dynamics Preceding the STEVE Occurrence and Their Possible Preconditioning Role in STEVE Formation

STEVE 发生前的中性风动力学及其在 STEVE 形成中可能的预处理作用

• DOI: 10.1029/2020ja028505
• 发表时间: 2021
• 期刊: Journal of Geophysical Research: Space Physics
• 作者: Liang, Jun;Zou, Y.;Nishimura, Y.;Donovan, E.;Spanswick, E.;Conde, M.
• 通讯作者: Conde, M.

Verification of Substorm Onset From Intruding Flow Channels With High‐Resolution SuperDARN Radar Flow Maps

• DOI: 10.1029/2022ja030723
• 发表时间: 2022-08
• 期刊: Journal of Geophysical Research: Space Physics
• 作者: L. Lyons;Y. Nishimura;Jiang Liu;W. Bristow;Y. Zou;E. Donovan