Space Weather of the Low-latitude Density and Forecast of Equatorial Spread-F Phenomena

ATM9819912absCesar Valledares研究人员将在南美洲部署五个全球定位系统（GPS）接收器，以观察赤道电离层的日常变化。 他们将利用这些数据研究导致赤道扩展F（ESF）发展的背景电离层条件。 我们的目标是了解的数量密度，等离子体漂移，中性风，电场的不规则性形成的综合作用。 这五个接收器将增加现有的12个网络，为观测赤道等离子体现象提供前所未有的纬度范围。 由接收器提供的总电子含量的测量将用于使用层析反演技术确定电子密度的垂直分布。 为了解释这些数据，研究人员将开发一个低纬度电离层的理论模型，其输出可以与测量结果进行比较。 这种模型和测量的结合将适用于涵盖不同季节、磁场条件和太阳活动水平的事件。 其结果将用于改进中纬度电离层的空间气象预报，以减少电离层不规则性对导航和通信系统的影响。

ATM9819912absCesar ValledaresThe investigators will deploy five Global Positioning System (GPS) receivers in South America to observe the day-to-day variability of the equatorial ionosphere. They will use the data to study the background ionospheric conditions leading to the development of equatorial spread F (ESF). The goal is to understand the combined action of the number density, plasma drifts, neutral winds, and electric fields in relation to irregularity formation. The five receivers will add to an existing network of 12, providing an unprecedented latitudinal range for observing equatorial plasma phenomena. The measurement of total electron content provided by the receivers will be used to determine the vertical profiles of electron density using tomographic inversion techniques. To interpret the data, the investigators will develop a theoretical model of the low latitude ionosphere whose output can be compared with the measurements. This combination of model and measurements will be applied to events covering different seasons, magnetic conditions, and solar activity levels. The results will be used to improve Space Weather forecasts of the mid-latitude ionosphere to reduce the impact on navigation and communication systems resulting from ionospheric irregularities.