CAREER: Meteor and Meteoroid Characterization Using High-Power Large-Aperture Radar Data
职业:使用高功率大孔径雷达数据表征流星和流星体
基本信息
- 批准号:1056042
- 负责人:
- 金额:$ 62.88万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2011
- 资助国家:美国
- 起止时间:2011-10-01 至 2017-09-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This project will combine theory, numerical modeling, and observations of sporadic meteors and meteoroid plasmas in order to address fundamental questions regarding their origin and influence on the upper atmosphere. This work breaks the problem of meteor characterization into three components, focusing on their ablation in the ionosphere, the transport of the plasma surrounding the meteor head, and properties of its electromagnetic radiation scattering (known as "echoes"). The experimental program utilizes archival meteor head echo measurements from four radars at diverse geographical locations as well as new data acquired from these facilities following implementation of novel experimental configurations. The theory and modeling component includes improvements to an existing ablation model, modeling of plasma plume expansion using a particle-in-cell approach, and development of a fully electromagnetic scattering model to identify peak plasma densities associated with ionospheric irregularities. In addition to graduate student involvement in all aspects of the research, the work will also incorporate undergraduate curriculum development efforts. This project will build on extensive experience in public outreach regarding space physics research.
该项目将结合理论、数值模拟和对零星流星和流星体等离子体的观测,以解决有关它们的起源和对高层大气影响的基本问题。这项工作将流星的表征问题分为三个部分,重点是它们在电离层中的烧蚀,流星头部周围等离子体的传输,以及其电磁辐射散射(称为“回波”)的特性。实验计划利用档案流星头回波测量从四个雷达在不同的地理位置,以及从这些设施获得的新数据,在实施新的实验配置。理论和建模部分包括对现有烧蚀模型的改进,使用细胞内粒子方法对等离子体羽流膨胀进行建模,以及开发一个全电磁散射模型,以确定与电离层不规则性相关的峰值等离子体密度。除了研究生参与研究的各个方面外,这项工作还将包括本科生课程开发的努力。该项目将以空间物理研究方面的广泛公共宣传经验为基础。
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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Sigrid Elschot其他文献
Self-consistent charging of complex objects in flowing plasma: Implementation and analysis in WarpX
流动等离子体中复杂物体的自洽充电:在WarpX中的实现与分析
- DOI:
10.1016/j.cpc.2025.109680 - 发表时间:
2025-09-01 - 期刊:
- 影响因子:3.400
- 作者:
Ashwyn Sam;Sigrid Elschot - 通讯作者:
Sigrid Elschot
Collisionless electrostatic particle-in-cell simulation of rapid target charging along an unbiased dielectric surface due to hypervelocity impact plasmas
由于超高速碰撞等离子体沿无偏压电介质表面的快速目标充电的无碰撞静电粒子模拟
- DOI:
10.1016/j.ijimpeng.2025.105360 - 发表时间:
2025-10-01 - 期刊:
- 影响因子:5.700
- 作者:
Nancy Diallo;Raymond Lau;Nicolas Lee;Sigrid Elschot - 通讯作者:
Sigrid Elschot
Sigrid Elschot的其他文献
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{{ truncateString('Sigrid Elschot', 18)}}的其他基金
Collaborative Research: A Simulation and Theoretical Analysis of Meteor Evolution over Scales Ranging from Sub-microseconds to Minutes
合作研究:亚微秒到分钟尺度的流星演化模拟与理论分析
- 批准号:
2301645 - 财政年份:2023
- 资助金额:
$ 62.88万 - 项目类别:
Standard Grant
Characterization of Meteoroids and Meteors through Simulations and Remote Sensing Using High-Power Large-Aperture Radars
使用高功率大孔径雷达通过模拟和遥感表征流星体和流星
- 批准号:
2048349 - 财政年份:2021
- 资助金额:
$ 62.88万 - 项目类别:
Standard Grant
CEDAR: Atmospheric Neutral Density Dynamics through Meteor Observations
CEDAR:通过流星观测的大气中性密度动力学
- 批准号:
1920383 - 财政年份:2019
- 资助金额:
$ 62.88万 - 项目类别:
Standard Grant
GEM: Extending the Capabilities of CubeSats for Measuring Radiation Belt Precipitation
GEM:扩展 CubeSat 测量辐射带降水的能力
- 批准号:
1602607 - 财政年份:2016
- 资助金额:
$ 62.88万 - 项目类别:
Continuing Grant
Collaborative Research: CubeSat: A U.S. CubeSat Constellation for the QB50 Mission (QBUS)
合作研究:CubeSat:用于 QB50 任务 (QBUS) 的美国 CubeSat 星座
- 批准号:
1242912 - 财政年份:2014
- 资助金额:
$ 62.88万 - 项目类别:
Continuing Grant
Global Impact of Lightning-Generated VLF Waves on Radiation Belt Electron Losses
闪电产生的甚低频波对辐射带电子损耗的全球影响
- 批准号:
1139321 - 财政年份:2013
- 资助金额:
$ 62.88万 - 项目类别:
Standard Grant
CEDAR: Thunderstorm Coupling to the Lower Ionosphere through Electromagnetic, Acoustic, and Gravity Waves
CEDAR:雷暴通过电磁波、声波和重力波与低电离层耦合
- 批准号:
1243176 - 财政年份:2013
- 资助金额:
$ 62.88万 - 项目类别:
Continuing Grant
Collaborative Research: CEDAR--Tomographic Array for Lightning and Ionospheric Studies (TALIS)
合作研究:CEDAR——用于闪电和电离层研究的断层扫描阵列 (TALIS)
- 批准号:
1025262 - 财政年份:2009
- 资助金额:
$ 62.88万 - 项目类别:
Continuing Grant
Collaborative Research: CEDAR--Tomographic Array for Lightning and Ionospheric Studies (TALIS)
合作研究:CEDAR——用于闪电和电离层研究的断层扫描阵列 (TALIS)
- 批准号:
0836510 - 财政年份:2009
- 资助金额:
$ 62.88万 - 项目类别:
Continuing Grant
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