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极光能量和动量输送的主要来源。在这些所谓的“中”尺度的风在运输过程中起着至关重要的作用，但从来没有被系统的特点，由于缺乏观测。PI将对中尺度F区（地球上空150-600公里？的地面）风发生，结构和演变。拟议的努力利用大量的NSF资产奠定基础，从极光形态推断风。这项工作将为中尺度磁层-电离层-热层相互作用建模工作提供信息。其更广泛的影响包括支持年轻科学家和一名女博士后，以及宣传极光事件。研究小组将根据不同的极光弧、地磁和太阳条件对中尺度风进行分类。他们将把欧洲卫星风数据与阿拉斯加和加拿大西部的几个密集数据集和/或观测共同体积的数据集进行协同。热层风的空间尺度和方向提供了关于基本强迫的信息，并作为电离层-热层耦合效率的指标。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的知识价值和更广泛的影响审查标准进行评估来支持。

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

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.

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

Effects of Substorms on High‐Latitude Upper Thermospheric Winds

• DOI: 10.1029/2020ja028193
• 发表时间: 2020-12
• 期刊: Journal of Geophysical Research: Space Physics
• 作者: Y. Zou;L. Lyons;M. Conde;R. Varney;V. Angelopoulos;S. Mende