Space Weather: Modeling of Thermospheric Disturbances and Associated Negative Ionospheric Storms

拟议的研究项目建立在先前展示的从DE 1卫星获得的远紫外（FUV）图像中检索O/N2柱密度比的能力，以及由此产生的地面电离层探空仪观测到的减少的O/N2大“云”与减少的Nmax之间的相关性的证明。拟议的研究将通过利用额外的电离层数据，特别是1981年和1982年期间从ISIS 1号和2号卫星获得的上层探测数据、非相干散射雷达（ISR）数据和卫星原位数据来推进该计划。通过提供负电离层风暴期间的上层电子密度分布，这些数据将约束电离层和热层模型，并允许在这些事件期间估计中性密度分布。本研究计划的最终目标是改善和提高地磁风暴期间热层和电离层行为的模拟能力，并增加对地磁风暴对中纬度热层和电离层影响的认识。

The proposed research project builds on the previously demonstrated capability to retrieve O/N2 column density ratios from Far Ultraviolet (FUV) images obtained from the DE 1 satellite and the resulting demonstration of the correlation between large "clouds" of reduced O/N2 and reduced Nmax observed by ground based ionosondes. The proposed research will carry this program forward by making use of additional ionospheric data, specifically, topside soundings obtained from the ISIS 1 and 2 satellites, incoherent scatter radar (ISR) data, and satellite in situ data during 1981 and 1982. By providing topside electron density profiles during negative ionospheric storms, these data will constrain ionospheric and thermospheric models and allow the estimation of neutral density profiles during these events. The ultimate goal of the research program is to improve and enhance the ability to model thermospheric and ionospheric behavior during geomagnetic storms, and to increase the understanding of the impact of geomagnetic storms on the midlatitude thermosphere and ionosphere.