rootbrowseIAC-19B1session 22. Future Earth Observation SystemsPapers1. Progress on the NOAA Satellite Observing System Architecture Study and the Way-Ahead2. Aeolus and the future Earth Explorers of ESA3. The MicroCarb Project: an initiative for a global monitoring of the CO2 atmospheric concentration4. Gravity Recovery and Climate Experiment Follow-On mission5. Trends in Very High Resolution Earth Observation using Optical Small Satellites6. Operational status of Super Low Altitude Test Satellite "TSUBAME/SLATS"7. The Hyper-Angular Rainbow Polarimeter-2 (HARP-2): a wide FOV polarimetric imager for high-resolution spatial and angular characterization of cloud and aerosol microphysics8. new concept for future earth observation systems9. Development of geostationary interferometric microwave Sounder (GIMS) in preparing for China’s FY-4M mission10. Interferometry-Based Orbit Observation for Geosynchronous Synthetic Aperture Radar (GEOSAR) Missions11. COSMO-SkyMed di Seconda Generazione Non-Standard Operational Modes12. New small SAR-enabled satellite concept to support early warning for fast-developing events