Collaborative Research: Impacts of Ion-Neutral Coupling on Ion Upflow and Outflow in the Polar Cusp
合作研究:离子中性耦合对极尖点离子上流和流出的影响
基本信息
- 批准号:1522133
- 负责人:
- 金额:$ 23.96万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2016
- 资助国家:美国
- 起止时间:2016-07-01 至 2020-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Numerical modeling is one of the popular tools of modern space and atmospheric sciences. Computer simulations and numerical experiments allow the investigation various processes in the Earth environment and predict outcomes of these processes. Comparison with actual observational data allows the tuning of numerical models and improving this scientific tool. Many noted institutions are working on creating and constantly improving these models allowing scientists to utilize them for their research. Thus, the objective of the research will allow better understanding of the solar wind - magnetosphere interaction and improving global-scale coupled geospace models. This recommended collaborative effort is to investigate the dynamics and features of the interaction between ions and neutral atoms of the ionosphere and thermosphere during geomagnetic storms. The research focuses on how this interaction affects the upflow and outflow of ions. This investigation will consist of a series of numerical experiments applying global-scale geospace numerical models. Coupled Magnetosphere Ionosphere Thermosphere model (CMIT) will be used in combination with Ionosphere / Polar Wind Model (IPWM) to analyze how thermospheric changes can affect the ion upflow and outflow simulated in the IPWM. CMIT model is a combination of the Lyon-Fedder-Mobarry (LFM) Magnetospheric MHD model, the Magnetosphere Ionosphere Exchange (MIX) model of high-latitude electrodynamics, and the Thermosphere Ionosphere Electrodynamics General Circulation Model (TIEGCM). The research also concentrates on studying how the solar wind features and dynamics affect the ion-neutral interaction in the cusp and cleft and on finding specific distinctive signatures of this coupling, which could be recognized by ground-based instruments, for example, incoherent scatter radars at high latitudes.
数值模拟是现代空间和大气科学研究的重要工具之一。计算机模拟和数值实验允许调查地球环境中的各种过程,并预测这些过程的结果。与实际观测数据的比较可以调整数值模型并改进这一科学工具。许多著名的机构正在努力创建和不断改进这些模型,使科学家能够利用它们进行研究。因此,这项研究的目标将有助于更好地了解太阳风-磁层的相互作用,并改进全球尺度的地球空间耦合模型。这一建议的合作努力是为了调查在地磁暴期间电离层和热层的离子与中性原子之间相互作用的动力学和特征。研究的重点是这种相互作用如何影响离子的上流和外流。这项研究将包括一系列应用全球尺度地球空间数值模型的数值实验。耦合磁层电离层热层模型(CMIT)将与电离层/极风模型(IPWM)结合使用,以分析热层变化如何影响IPWM中模拟的离子上升流和流出。CMIT模型是Lyon-Fedder-Mobarry(LFM)磁层MHD模型、磁层电离层交换(MIX)高纬电动力学模型和热层电离层电动力学环流模型(TIEGCM)的组合。研究还集中研究太阳风的特征和动态如何影响尖点和裂缝中的离子-中性相互作用,并寻找这种耦合的具体独特特征,这些特征可由地面仪器识别,例如高纬度的非相干散射雷达。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Roger Varney其他文献
Roger Varney的其他文献
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{{ truncateString('Roger Varney', 18)}}的其他基金
CEDAR: Characterizing the Polar Cap Topside Ionosphere
CEDAR:描述极冠上部电离层的特征
- 批准号:
1452191 - 财政年份:2015
- 资助金额:
$ 23.96万 - 项目类别:
Continuing Grant
GEM: Exploring the Relative Influence of Different Classes of Ion Outflow on the Coupled Dynamics of the Magnetosphere-Ionosphere-Thermosphere System
GEM:探索不同类别离子流出对磁层-电离层-热层系统耦合动力学的相对影响
- 批准号:
1555801 - 财政年份:2015
- 资助金额:
$ 23.96万 - 项目类别:
Continuing Grant
Advanced Modular Incoherent Scatter Radar (AMISR) Operations and Maintenance: Looking Forward to a More Active Sun
先进模块化非相干散射雷达 (AMISR) 操作和维护:期待更加活跃的太阳
- 批准号:
1133009 - 财政年份:2012
- 资助金额:
$ 23.96万 - 项目类别:
Cooperative Agreement
Advanced Modular Incoherent Scatter Radar (AMISR) Operations and Maintenance: Looking Forward to a More Active Sun -- BOA (Basic Ordering Agreement)
先进模块化非相干散射雷达(AMISR)运维:期待更加活跃的太阳——BOA(基本订购协议)
- 批准号:
1239348 - 财政年份:2012
- 资助金额:
$ 23.96万 - 项目类别:
Cooperative Agreement
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