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

研究人员将把对黄昏时原子氧发射的测量与数字电离层探空仪的测量结合起来，研究沉淀共轭光电子对即将到来的太阳高峰期太阳和地磁活动变化的响应，并将结果与场对准半球间等离子体(FLIP)模型的预测进行比较。这些观测包括对克莱姆森大气研究实验室两个冬天的630纳米和844.6纳米原子氧气辉发射率的光度测量。通过从光度计观测中减去局域发射的模型估计值，确定了由共轭光电子碰撞引起的630 nm处的发射率。这些结果和观测到的844.6 nm发射将与共轭光电子通量产生的夜辉增强的反转预测进行比较。这些结果将提供关于等离子体层透明度随纬度或经度或太阳和地磁活动变化的可能情况的洞察。

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.