La presidencia de la COMISIÓN G – RADIO IONOSFÉRICA Y PROPAGACIÓN anima a enviar trabajos antes del próximo 23 de enero 2023 a la URSI 2023 General Assembly and Scientific Symposium (Sapporo, 19-26 agosto, 2023, https://www.ursi-gass2023.jp/) para las siguientes sesiones:
- Session G12 – Ionosphere monitoring & modeling review
Manuel Hernández-Pajares, Tim Fuller-Rowell
manuel.hernandez@upc.edu, tim.fuller-rowell@noaa.gov
The ionosphere is a highly variable medium with dependencies on geographic location, time of day, season, solar and geomagnetic activity. It is most important because it reflects and modifies radio waves used for communication and navigation. Space Weather influences the ionosphere in many ways, which, in turn, have adverse effects on telecommunication and navigation. Commission G focuses on ionospheric studies in order to provide the broad understanding necessary to support space and ground-based radio communications. This session aims to solicit review contributions from the earliest studies of ionospheric morphology to transforming advancements in diagnostic techniques, ionospheric modeling, theory and radio system applications.
- Session G01 – GNSS Radio Occultation and zenith data from Low EarthOrbit: advancements on measurements, data assimilation and models
Riccardo Notarpietro, Mainul Hoque, Manuel Hernández Pajares, Mengjie Wu
Riccardo.Notarpietro@eumetsat.int, Mainul.Hoque@dlr.de, manuel.hernandez@upc.edu, mjwu@shao.ac.cn
Nowadays several CGMS (Coordination Group for Meteorological Satellites) coordinated and commercial satellites host GNSS receivers for collecting signals from a limb sounding radio occultation instrument and from zenith antennas for Precise Orbit Determination purposes. The assimilation of such GNSS dual frequency measurements into numerical models has the potential to contribute significantly to the improvement of the ionosphere and plasmasphere monitoring, forecasting, and modelling, with important benefits for a better understanding of the space weather. However, different raw measurements or products can be assimilated, spanning from the standard dual frequency carrier phases and pseudoranges to the slant TEC (Total Electron Content), topside TEC derived from zenith data, dual frequency bending angles, electron densities profiles, etc. Such measurements can then be assimilated on top of other in-situ observations, iono-soundings and ground-based GNSS measurements. The aim of this session is to provide a comprehensive overview and discuss recent advancements on the impact of the GNSS radio occultation and zenith data collected from satellite platforms for the ionosphere and plasmasphere monitoring and modelling. Contributions on the topics of new data assimilation models, data assimilation trials and validation, ionosphere models improvements, as well as contributions on new ionospheric radio occultation data provision are welcome.
