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: Clemson University
• 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
• 起止时间: 2000-03-01 至 2004-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9979268&HistoricalAwards=false
• 关键词: CEDAR; Simultaneous; Digital; Ionosonde; Mapping

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.

Meriwether，John W.ATM9979268ABS，研究人员将结合暮光期间原子氧排放的测量与数字离子核心测量结果，以研究将共轭光电子与在即将到来的solar最大化期间的相互作用以及对结果进行预测的响应的响应 - （翻转）模型。 该观察结果包括在克莱姆森大气研究实验室的两个冬季对630和844.6 nm原子氧气的发射率的光度测量。 由共轭光电子撞击引起的630 nm处的排放率是通过减去光度计观测值局部发射的模型估计值确定的。 这些结果和观察到的844.6 nm排放将与结合光电通量产生的agger夜增强的翻转预测进行比较。 这些结果将提供有关透明度或经度的透明度变化或太阳和地磁活动变化的可能性变化的见解。