Polar Ionospheric TEC Enhancement Observation Using GNSS-R

This paper presents recent processing results of ionospheric TEC enhancement obtained over the Arctic and Antarctic based on GNSS reflectometry (GNSS-R) measurements. The polar ionosphere is home for many interesting and dynamic processes. Yet, ionospheric observations at polar regions are sparse due to challenges in deploying instruments in the harsh environments. GNSS-R offers a promising new means to fill the data gap at high latitudes by utilizing coherently reflected signal over ice and received by LEO satellite equipped with side- or downward looking antennas. This paper presents real grazing angle GNSS-R data collected by Spire Global CubeSats to retrieve ionospheric TEC over the Arctic and Antarctic. This paper show examples of GNSS-R observations of ionospheric TEC enhancement over the Arctic and Antarctica.