Royal Observatory of Belgium - Meridian Room
Some GNSS ionospheric monitoring techniques implemented in real-time and rapid latencies at global and polar scales
We present the Global Navigation Satellite Systems (GNSS) ionospheric monitoring techniques developed by the authors and implemented in terms of associated products, which are being computed globally, in real-time and rapid latencies. We will focus on the potential contributions to the improvement of GNSS performance and Ionospheric Science in polar regions, in terms of Space Weather monitoring, Scintillation activity and Vertical Total Electron Content (VTEC) distribution. Indeed UPC-IonSAT has developed a set of different ionospheric products on daily, fifteen-minutes and 30-seconds basis, at different associated latencies of 1 day, 15 minutes and 30 seconds. since 1998 in the context of the International GNSS Service (IGS), and since 2011 in the context of MONITOR ESA funded project, a set of different ionospheric products on daily, fifteen-minutes and 30-seconds basis, at different associated latencies of 1 day, 15 minutes and 30 seconds. Our discussion is focused on: 1) Global ionospheric tomography and associated VTEC Global Ionospheric Maps (latencies of 1-day and 15 minutes). 2) Rate of TEC Index, typically over +200 worldwide GNSS receivers in real-time (latencies of 30 seconds and 15 minutes). 3) Sidereal-day VTEC variation, also in real-time for +200 worldwide GNSS receivers. 4) Solar EUV flux rate (SOLERA), SOLERA rate (formerly known as GSFLAI) and the specific solar flare indicator SISTED. 5) Single Receiver Medium Scale Travelling Ionospheric Disturbances (SRMTID) index.