Development of Efficient Models of Streamer to Leader Transition in the Earth's Atmosphere

地球大气层中主光向主光转变的有效模型的开发

基本信息

  • 批准号:
    1332199
  • 负责人:
  • 金额:
    $ 29.72万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2013
  • 资助国家:
    美国
  • 起止时间:
    2013-08-15 至 2017-07-31
  • 项目状态:
    已结题

项目摘要

This grant will allow research to continue on streamer-to-spark modeling, with a main goal of developing an efficient and accurate air heating model to study streamer-to-leader transition in lightning and air heating processes in transient luminous events (TLEs). New observations of events like gigantic jets and space leaders in lightning show the need for the development of streamer-to-leader transition models capable of simulating leader formation and propagation in a broader range of values of leader electrical current and ambient air pressure. The research aims of the award are to answer questions about: the scaling of streamer-to-leader transition with pressure, parameterization of channel decay time, polarity asymmetries in positive and negative leader formation and propagation, possibility of air heating in sprites, and long persistency of bead structures in sprites.The broader impacts of the research include the education and training of a graduate student and the inclusion of undergraduate students in the research through direct funding and the association with an existing Research Experiences for Undergradutes program. Models developed during the award period would be made available to the community.
这笔赠款将允许研究继续进行流光到火花建模,主要目标是开发一个有效和准确的空气加热模型,以研究瞬态发光事件(TLEs)中闪电和空气加热过程中的流光到先导过渡。 对闪电中的巨型喷气机和空间领导者等事件的新观察表明,需要开发能够在更广泛的领导者电流和环境气压值范围内模拟领导者形成和传播的拖缆到领导者过渡模型。 该奖项的研究目的是回答以下问题:随压力的拖缆到先导转变的标度,通道衰减时间的参数化,正先导和负先导形成和传播中的极性不对称,子焰中空气加热的可能性,以及精灵中珠子结构的长期存在。这项研究的更广泛影响包括研究生的教育和培训,以及通过直接资助和与现有的本科生研究经验计划的关联,帮助本科生参与研究。 在奖励期间开发的模型将提供给社区。

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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Victor Pasko其他文献

Victor Pasko的其他文献

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{{ truncateString('Victor Pasko', 18)}}的其他基金

Relativistic Runaway Discharges in the Earth's Atmosphere
地球大气中的相对论失控放电
  • 批准号:
    2341623
  • 财政年份:
    2024
  • 资助金额:
    $ 29.72万
  • 项目类别:
    Standard Grant
CEDAR: Modeling of Initial Temperature Relaxation and Expansion of Meteor Trails
CEDAR:流星轨迹初始温度弛豫和扩展的建模
  • 批准号:
    2329677
  • 财政年份:
    2024
  • 资助金额:
    $ 29.72万
  • 项目类别:
    Standard Grant
A Theoretical Framework for Photoionization and Photodetachment Rate Calculations in the Lower Ionosphere
低电离层光电离和光脱离率计算的理论框架
  • 批准号:
    2010088
  • 财政年份:
    2020
  • 资助金额:
    $ 29.72万
  • 项目类别:
    Standard Grant
Simulations and Theory of Lightning Initiation in Low Thundercloud Fields
低雷云场中闪电起爆的模拟和理论
  • 批准号:
    1744099
  • 财政年份:
    2018
  • 资助金额:
    $ 29.72万
  • 项目类别:
    Continuing Grant
Simulations and Theory of Streamer Discharges in Transient Luminous Events
瞬态发光事件中流光放电的模拟和理论
  • 批准号:
    1623780
  • 财政年份:
    2017
  • 资助金额:
    $ 29.72万
  • 项目类别:
    Continuing Grant
Energetic Radiation from Lightning Leaders: Effects and Origins
闪电领导者的能量辐射:影响和起源
  • 批准号:
    1106779
  • 财政年份:
    2011
  • 资助金额:
    $ 29.72万
  • 项目类别:
    Standard Grant
CEDAR: Modeling Studies of Infrasonic Waves from Thunderstorms and Aurora
CEDAR:雷暴和极光次声波的建模研究
  • 批准号:
    0836391
  • 财政年份:
    2009
  • 资助金额:
    $ 29.72万
  • 项目类别:
    Continuing Grant
Thermal Runaway Breakdown of Air: A Possible Origin of Energetic Radiation Generated in the Earth's Atmosphere
空气的热失控分解:地球大气中产生的高能辐射的可能来源
  • 批准号:
    0741589
  • 财政年份:
    2008
  • 资助金额:
    $ 29.72万
  • 项目类别:
    Continuing Grant
Simulations and Theory of Streamer Discharges in Transient Luminous Events
瞬态发光事件中流光放电的模拟和理论
  • 批准号:
    0734083
  • 财政年份:
    2007
  • 资助金额:
    $ 29.72万
  • 项目类别:
    Continuing Grant
Development of Efficient Three-Dimensional Models of Lightning Discharges
高效三维闪电放电模型的开发
  • 批准号:
    0652148
  • 财政年份:
    2007
  • 资助金额:
    $ 29.72万
  • 项目类别:
    Continuing Grant

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