The international reference ionosphere (IRI) is the internationally recognized and
recommended standard for the specification of plasma parameters in Earth's ionosphere. It …

对流层和电离层是地球近地空间环境中两个重要的组成部分, 是靠近地球表面且与人类生活联系
最密切的大气圈层. 全球导航卫星系统技术的快速发展, 为GNSS 空间环境学的研究提供了良好 …

This paper presents for the first time regional plots of total electron content (TEC) depletions
derived from GPS observations over the South American continent with a coverage of over …

Abstract Observation of the 3-dimensional (3-D) electron density of the ionosphere is useful
to study large-scale physical processes in space weather events. Ionospheric data …

The computerized ionospheric tomography usually involves solving an ill-posed inversion
problem. The sparsity of Global Positioning System (GPS) stations and the limitation of …

Low-frequency, wide field-of-view (FOV) radio telescopes such as the Murchison Widefield
Array (MWA) enable the ionosphere to be sampled at high spatial completeness. We …

Computerized ionospheric tomography is an important technique for ionosphere
investigation. However, it is an ill-posed problem owing to an insufficient amount of available …

Ionized by solar radiation, the ionosphere causes a phase rotation or time delay to trans-
ionospheric radio waves. Reconstruction of ionospheric electron density profiles with global …

A complete model is proposed to analyze the electron density perturbation caused by
tsunami-induced gravity waves. Loss mechanisms of thermal conduction, viscosity, and ion …

Reconstructing ionospheric electron density (IED) is an ill-posed inverse problem, with
classical Tikhonov regularization tending to smooth IED structures. By contrast, total …