Global Studies with Dual Schumann Resonance Methods
Global Studies with Dual Schumann Resonance Methods
批准号:
9633766
负责人:
Earle Williams
金额:
$36.78万
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
1997
资助国家:
美国
项目状态:
已结题
起止时间:
1997-01-15 至 2000-12-31
中文摘要
本研究的目标是地球自然发生的舒曼共振在三个不同尺度上的行为。在全球范围内,目标是了解背景舒曼共振强度的显著变化,以及这种变化如何受到对流层中与温度相关的条件不稳定性的影响。在中尺度,目标是了解与产生极低频q暴的高能正地面闪光有关的气象条件。我们现在能够通过单站观测在全球范围内绘制这些事件的地图,这可能使我们能够研究中尺度对流系统的全球日变化。这种变化可能与全球回路的传统昼夜行为截然不同。在局部闪电规模,目标是了解持续电流的性质和电荷转移到地面相关的精灵产生积极的地面闪光。
英文摘要
Williams/Abstract The objectives of this research are the behavior of the Earth s naturally occurring Schumann resonances on three different scales. At a global scale, the objective is to understand the pronounced variability of background Schumann resonance intensity and how this variability is influenced by the temperature-related conditional instability in the troposphere. At the mesoscale, the objective is to understand the meteorological conditions associated with the production of energetic positive ground flashes that produce ELF Q-bursts. We are now able to map these events on a global basis from single-station observations and this may enable an investigation of the global diurnal variation of mescoscale convective systems. This variation may be quite distinct from the traditional diurnal behavior of the global circuit. At the local lightning scale, the objective is to understand the nature of the continuing current and the charge transfer to ground associated with the sprite-producing positive ground flashes.
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The Global Circuits Paradox
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批准号:1945871
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项目类别:Standard Grant
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资助金额:$80.58万
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财政年份:2020
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负责人:Earle Williams
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依托单位:
Collaborative Research: Lightning Studies in a Polluted Atmosphere
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批准号:1523305
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项目类别:Continuing Grant
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资助金额:$7.41万
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财政年份:2015
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负责人:Earle Williams
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依托单位:
Merging of Observations and Models for the Earth's Schumann Resonances
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批准号:0842751
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项目类别:Standard Grant
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资助金额:$47.8万
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财政年份:2009
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负责人:Earle Williams
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依托单位:
Collaborative Research: West African Mesoscale Convective Systems and Their Interactions with the Synoptic Environment
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批准号:0734806
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项目类别:Continuing Grant
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资助金额:$27.52万
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财政年份:2008
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负责人:Earle Williams
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依托单位:
Wideband Analysis of Sources and Structure of the Earth-Ionosphere Waveguide
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批准号:0337298
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项目类别:Continuing Grant
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资助金额:$61.97万
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财政年份:2003
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负责人:Earle Williams
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依托单位:
A Study of the African 'Chimney' Region with Schumann Resonance Methods
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批准号:0003346
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项目类别:Continuing Grant
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资助金额:$29.67万
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财政年份:2000
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负责人:Earle Williams
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依托单位:
Schumann Resonance Measurements for Global Change
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批准号:9218161
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项目类别:Continuing Grant
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资助金额:$24.13万
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财政年份:1993
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负责人:Earle Williams
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依托单位:
Electrification and Energetics of Deep Convection Near Darwin, Australia
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批准号:9022038
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项目类别:Continuing Grant
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资助金额:$19.36万
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财政年份:1991
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负责人:Earle Williams
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依托单位:
Characteristics of Cloud-to-Ground Lightning in the Contiguous United States
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批准号:9119605
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项目类别:Standard Grant
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资助金额:$1.0万
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财政年份:1991
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负责人:Earle Williams
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依托单位:
Studies of Dynamics and Electrification of Deep Convection and Mesoscale Cloud Clusters Near Darwin, Australia
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批准号:8818694
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项目类别:Continuing Grant
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资助金额:$36.37万
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财政年份:1988
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负责人:Earle Williams
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依托单位:
Cyclogenesis Slantwise Convection & Cloud Electrification inthe Genesis of Atlantic Lows Experiments (GALE)
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批准号:8617132
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项目类别:Continuing Grant
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资助金额:$37.18万
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财政年份:1987
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负责人:Earle Williams
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依托单位:
Radar Studies of the Dendritic Structure of Lightning
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批准号:8515218
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项目类别:Continuing Grant
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资助金额:$7.28万
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财政年份:1986
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负责人:Earle Williams
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依托单位:
A Study of Cyclogenesis, Slantwise Moist Convection and Electrification in the Genesis of Atlantic Lows Experiment (GALE)
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批准号:8513935
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项目类别:Standard Grant
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资助金额:$36.39万
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财政年份:1985
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负责人:Earle Williams
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依托单位:
海外基金