CEDAR Postdoc: Coordinated Space-Based Observations of Equatorial Plasma Bubbles Using TIMED/Global UltraViolet Imager (GUVI) and Defense Meteorological Satellites Program (DMSP)

赤道F区等离子体耗竭被认为是气泡深入电离层顶部，以前所未有的空间和时间覆盖范围进行采样，以揭示耗尽的起源、结构和演化。这些结构的三维特征是通过对135.6 nm处的多个卫星气辉观测以及630.0 nm处的地面图像进行层析反演来确定的。定时卫星全球紫外线成像仪用于制作赤道电离层的大型图像，DMSP-16和即将发射的DMSP-17卫星上的特殊传感器紫外光谱成像仪向GUVI提供交叉波束，经反演后可获得等离子体气泡及其演化的极高空间分辨率图像。地面图像也包括在可用时的这一反演中。该项目是博士后关注的焦点，有望提高我们预测赤道地区GPS和无线电闪烁干扰的能力。

Equatorial F-region plasma depletions that are known to appear as bubbles reaching well into the topside ionosphere are sampled with unprecedented spatial and temporal coverage to reveal the origin, structure, and evolution of the depletions. The three dimensional character of these structures are determined by tomographic inversion of multiple satellite airglow observations at 135.6 nm, along with ground based imagery at 630.0 nm. The TIMED satellite Global Ultraviolet Imager (GUVI) is used to create large scale images of the equatorial ionosphere, and the Special Sensor Ultraviolet Spectrographic Imager aboard the DMSP-16 and soon to be launched DMSP-17 satellites provide cross-beams to GUVI, and upon inversion very high spatial resolution images of plasma bubbles and their evolution. Ground-based imagery is also included in this inversions where and when available. The project is the focus of postdoctoral student, and promises to improve our ability to predict GPS and radio scintillation interference in the equatorial region.