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CEDAR: Simultaneous Digital Ionosonde and Mapping Tilting Filter Photometer Studies of the Precipitation of Conjugate Photoelectrons into the Mid-latitude Winter Thermosphere

CEDAR: Simultaneous Digital Ionosonde and Mapping Tilting Filter Photometer Studies of the Precipitation of Conjugate Photoelectrons into the Mid-latitude Winter Thermosphere
CEDAR:同步数字电离探空仪和映射倾斜滤光光度计研究共轭光电子进入中纬度冬季热层的沉淀
批准号:
9979268
负责人:
John Meriwether
金额:
$11.75万
依托单位:
依托单位国家:
美国
项目类别:
Continuing Grant
财政年份:
2000
资助国家:
美国
项目状态:
已结题
起止时间:
2000-03-01 至 2004-02-29

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中文摘要
翻译
研究人员将结合联合收割机测量的原子氧排放在黄昏与数字电离层探测仪测量,研究在即将到来的太阳极大期期间,太阳和地磁活动的变化,沉淀共轭光电子的响应,并比较结果与预测从场对准半球间等离子体(FLIP)模型。 观测包括在克莱姆森大气研究实验室两个冬天对630和844.6 nm原子氧气辉发射率的光度测量。 由共轭光电子碰撞引起的630 nm处的发射率通过从光度计观测值中减去局部发射的模型估计值来确定。 这些结果和观测到的844.6 nm发射将与FLIP预测的夜光增强共轭光电子通量。 这些结果将提供洞察力的透明度与纬度或经度或太阳和地磁活动的变化可能的等离子体变化。
英文摘要
Meriwether, John W.ATM9979268absThe investigators will combine measurements of atomic oxygen emissions during twilight with digital ionosonde measurements to study the response of precipitating conjugate photoelectrons to variations in solar and geomagnetic activity during the upcoming solar maximum period, and to compare the results with predictions from the Field-aligned Interhemispheric Plasma (FLIP) model. The observations consist of photometric measurements of the 630 and 844.6 nm atomic oxygen airglow emission rates over two winters at the Clemson Atmospheric Research Laboratory. The emission rate at 630 nm caused by conjugate photoelectron impact is determined by subtraction of the model estimate for the local emission from the photometer observations. These results and the observed 844.6 nm emissions would be compared with the FLIP predictions of nightglow enhancements generated by conjugate photoelectron fluxes. These results would provide insight as to possible plasmasphere variations of transparency with latitude or longitude or with changes in solar and geomagnetic activity.
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Collaborative Research: CEDAR: Multi-site Fabry-Perot Interferometer Measurements of Thermospheric Neutral Winds and Temperatures in Western South America
  • 批准号:
    2230439
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $18.42万
  • 财政年份:
    2022
  • 负责人:
    John Meriwether
  • 依托单位:
MRI: Acquisition of a state-of-the-art Fabry-Perot interferometer to measure upper atmosphere winds and temperatures for He, OH, and O nightglow and auroral emissions
  • 批准号:
    2215857
  • 项目类别:
    Standard Grant
  • 资助金额:
    $58.73万
  • 财政年份:
    2022
  • 负责人:
    John Meriwether
  • 依托单位:
Collaborative Research: CEDAR--Application of the RENOIR System in Brazil to Study the Gravity Wave Trigger Mechanism In the Production of Equatorial Spread F and Scintillations
  • 批准号:
    0940217
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $15.38万
  • 财政年份:
    2010
  • 负责人:
    John Meriwether
  • 依托单位:
Collaborative Research: CEDAR--Experimental and Modeling Study of Mesoscale Ion-Neutral Coupling in the Auroral Thermosphere
  • 批准号:
    0640641
  • 项目类别:
    Continuing Grant
  • 资助金额:
    $33.91万
  • 财政年份:
    2007
  • 负责人:
    John Meriwether
  • 依托单位:
海外基金