We present here major results of the Poseidon -3B during the in-flight assessment phase.
In particular the mode Diode/DEM Mode using automatic transition will be detailed. Jason-3 and Sentinel-3 will be the first missions to use the Diode/DEM mode as an operational mode and Jason-3 will have the capability to automatically switch between autonomous and Diode/DEM mode. This presentation should make users more familiar with this new functioning and understand how it can improve the data availability over coastal areas and hydrological targets