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Modeling of Turbulence Generation and Smale-Scale Structure with Applications to Radar Backscatter

Modeling of Turbulence Generation and Smale-Scale Structure with Applications to Radar Backscatter
湍流生成和小尺度结构建模及其在雷达后向散射中的应用
批准号：
9618004
负责人：
David Fritts
金额：
$27.0万
依托单位：
NorthWest Research Associates, Incorporated
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：
1997-08-01 至 2000-07-31
来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=9618004&HistoricalAwards=false
关键词：
ModelingTurbulenceGenerationSmaleScale

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中文摘要
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英文摘要
The PIs will combine numerical and theoretical studies of turbulence generation and scalar spectra and co-spectra of ion, electron and aerosol constituents caused by turbulence motions. This should provide a theoretical understanding of small-scale structure and its connection to radar backscatter intensities and characteristics in the mesosphere and lower thermosphere (MLT). The PI plans to address evidence for high Schmidt numbers at VHF and UHF frequencies, different backscatter intensities and characteristics at different frequencies, and influences of turbulence on pre-existing gradients of electrons, ions, and aerosols under polar summer mesopause and more general MLT conditions.
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Mesosphere and Lower Thermosphere Dynamics Studies Employing the Southern Argentina Agile MEteor Radar (SAAMER), Correlative Measurements, and Modeling
Collaborative Research: Convective Gravity Waves in the Stratosphere (CGWaveS)
Collaborative Research: New Pathways to Enhanced Turbulence and Mixing via Kelvin-Helmholtz Instability Tube and Knot Dynamics
Multi-Scale Dynamics Studies Using the Drake Antarctic Agile Meteor Radar
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