Numerical Studies of Thunderstorm Electrification, Maxwell Currents, and Lightning
雷暴起电、麦克斯韦电流和闪电的数值研究
基本信息
- 批准号:0303535
- 负责人:
- 金额:$ 39.4万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing grant
- 财政年份:2003
- 资助国家:美国
- 起止时间:2003-04-01 至 2007-03-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This project continues the research initiated earlier on the numerical modeling of clouds including parameterizations for electrical charging, charge separation, and lightning. It includes the analysis of cloud electrical and microphysical data collected by the storm-penetrating T-28 aircraft during the STEPS program (Severe Thunderstorm Electrification and Precipitation Study) conducted in Kansas in the early summer of 2000. The existing cloud model will be improved by addition of a more accurate treatment of microphysics, apart from electrical effects, and by experimenting with different parameterizations for the non-inductive charging mechanism. The model will be validated by comparison with observations of thunderstorms from STEPS and other field programs. A new objective is to compute Maxwell current vectors as part of the simulations as a way to test hypotheses that relate thunderstorm activity to the global electrical circuit. The work advances the understanding of thunderstorms by providing a comprehensive and self-consistent numerical model that enables the simulation of charging, lightning, and precipitation under different environmental conditions.
这个项目继续了先前对云的数值模拟的研究,包括电荷、电荷分离和闪电的参数化。它包括对2000年初夏在堪萨斯州进行的STEPS项目(强雷暴电气化和降水研究)期间由T-28飞机收集的云电学和微物理数据的分析。除了电效应之外,现有的云模型还将通过增加更精确的微物理处理,以及对非感应充电机制进行不同参数化的实验来改进。该模式将通过与STEPS和其他野外项目的雷暴观测结果进行比较来验证。一个新的目标是计算麦克斯韦电流矢量,作为模拟的一部分,作为测试雷暴活动与全球电路有关的假设的一种方式。这项工作提供了一个全面和自一致的数值模型,可以模拟不同环境条件下的充电、闪电和降水,从而提高了对雷暴的认识。
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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John Helsdon其他文献
John Helsdon的其他文献
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{{ truncateString('John Helsdon', 18)}}的其他基金
High-Speed Video and Electrical Study of Upward Lightning Triggered by Towers
塔触发的向上闪电的高速视频和电气研究
- 批准号:
1048103 - 财政年份:2011
- 资助金额:
$ 39.4万 - 项目类别:
Standard Grant
Storm Penetrating Aircraft Workshop; Rapid City, South Dakota; Fall of 2006
风暴穿透飞机车间;
- 批准号:
0633861 - 财政年份:2006
- 资助金额:
$ 39.4万 - 项目类别:
Standard Grant
Further Analysis and Modeling Studies of Severe Thunderstorm Electrification and Precipitation Study (STEPS) Cases
强雷暴带电和降水研究(STEPS)案例的进一步分析和建模研究
- 批准号:
0245147 - 财政年份:2003
- 资助金额:
$ 39.4万 - 项目类别:
Continuing Grant
Three-Dimensional (3D) Modeling and Observational Studies of Lightning-Produced Nitric Oxides
闪电产生的一氧化氮的三维 (3D) 建模和观测研究
- 批准号:
0321985 - 财政年份:2003
- 资助金额:
$ 39.4万 - 项目类别:
Standard Grant
Airborne Observations and Storm Modeling in Support of the Severe Thunderstorm Electrification and Precipitation Study (STEPS)
支持强雷暴带电和降水研究 (STEPS) 的机载观测和风暴建模
- 批准号:
9981175 - 财政年份:2000
- 资助金额:
$ 39.4万 - 项目类别:
Continuing Grant
3D Cloud-Scale Model and Satellite Study of the Transport and Evolution of Lightning-Produced Nitrogen Oxides
闪电产生的氮氧化物的传输和演化的 3D 云尺度模型和卫星研究
- 批准号:
9803762 - 财政年份:1998
- 资助金额:
$ 39.4万 - 项目类别:
Continuing Grant
Numerical Studies of Thunderstorms Electricity and Lightning--A Look at the Paradigm
雷暴电和闪电的数值研究--范式考察
- 批准号:
9613679 - 财政年份:1997
- 资助金额:
$ 39.4万 - 项目类别:
Continuing grant
Modeling Study of NOx Production by Lightning and its Transport in a 2D Cloud Model
二维云模型中闪电产生的氮氧化物及其传输的建模研究
- 批准号:
9322588 - 财政年份:1994
- 资助金额:
$ 39.4万 - 项目类别:
Standard Grant
Numerical Modeling Studies of Thunderstorm Charging and Lightning Influence on Storm Electricity in Two and Three Dimensions
二维和三维雷暴充电和雷电对风暴电影响的数值模拟研究
- 批准号:
9200698 - 财政年份:1992
- 资助金额:
$ 39.4万 - 项目类别:
Continuing grant
RUI: The Characteristics of Cloud-to-ground Lightning in High Plains Thunderstorms (Hailswath II)
RUI:高原雷暴中云对地闪电的特征(Hailswath II)
- 批准号:
8722916 - 财政年份:1989
- 资助金额:
$ 39.4万 - 项目类别:
Continuing grant
相似海外基金
Further Analysis and Modeling Studies of Severe Thunderstorm Electrification and Precipitation Study (STEPS) Cases
强雷暴带电和降水研究(STEPS)案例的进一步分析和建模研究
- 批准号:
0245147 - 财政年份:2003
- 资助金额:
$ 39.4万 - 项目类别:
Continuing Grant
Studies of the Evolution of Thunderstorm Electricity and Lightning
雷暴电和闪电演化研究
- 批准号:
0220842 - 财政年份:2002
- 资助金额:
$ 39.4万 - 项目类别:
Standard Grant
Numerical Studies of Electrification and Lightning in Severe Thunderstorm Electrification and Precipitation Study (STEPS) Storms
强雷暴带电和降水研究 (STEPS) 风暴中带电和闪电的数值研究
- 批准号:
0119398 - 财政年份:2001
- 资助金额:
$ 39.4万 - 项目类别:
Continuing Grant
Numerical Modeling Studies of Thunderstorm Charging and Lightning Influence on Storm Electricity in Two and Three Dimensions
二维和三维雷暴充电和雷电对风暴电影响的数值模拟研究
- 批准号:
9200698 - 财政年份:1992
- 资助金额:
$ 39.4万 - 项目类别:
Continuing grant
Studies of Thunderstorm and Severe Storm Frequencies
雷暴和强风暴频率的研究
- 批准号:
8918475 - 财政年份:1990
- 资助金额:
$ 39.4万 - 项目类别:
Continuing Grant














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