Characterization of High‐m ULF Wave Signatures in GPS TEC Data

Towards Observing Tsunamis in the Ionosphere Using GPS TEC Measurements

Tsunamis have been a significant threat to humans living in coastal regions throughout recorded history. The recent tsunami of September 29, 2009 was a tragic reminder of this fact, as the waves caused over 180 deaths on the islands of Samoa, American Samoa, and Apia in the south Pacific. Recent modeling results and observations have demonstrated that the ionospheric signature of an ocean tsuna...

First simultaneous observations of daytime MSTIDs over North America using GPS-TEC and DEMETER satellite data

High resolution observations of spectral width features associated with ULF wave signatures in artificial HF radar backscatter

The EISCAT high power heating facility at Tromsø, northern Norway, has been utilised to generate artificial radar backscatter in the fields of view of the CUTLASS HF radars. It has been demonstrated that this technique offers a means of making very accurate and high resolution observations of naturally occurring ULF waves. During such experiments, the usually narrow radar spectral widths associ...

Nonlinear Estimation to Assimilate GPS TEC Data into a Regional Ionosphere Model

A new method of is being developed to estimate the ionosphere’s 3-dimensional electron density distribution based on GPS slant TEC data. The goal of this effort is to develop a generalized parametric ionospheric model that is amenable to data assimilation using powerful nonlinear least-squares batch filtering techniques and related techniques. In addition to assimilating GPS TEC data, this meth...

Generating a 3D TEC Model for Australia with Combined LEO Satellite and ground base GPS Data

Dr Jian Wang is currently a Visiting Fellow at the School of Surveying and Spatial Information Systems, University of New South Wales (UNSW). He graduated with a PhD from China University of Mining & Technology (CUMT) in 2006. His area of expertise is in the field of GNSS/INS integration with special emphasis on the quality control of navigation. He also focuses on the studies of wavelet theory...