E

Our understanding of physical oceanographic phenomena and their variability has been greatly advanced thanks to deployment of Argo profiling floats to the global ocean since the 2000s. Satellite measurement of sea surface salinity has become available since the 2010s,making it possible to capture physical and biogeochemical phenomena in the ocean and their variability on smaller spatio-temporal scales together with sea surface temperature and ocean color satellite measurements. The Argo program has been extended to Deep, BioGeoChemical, and Polar Argo missions, and has been integrated as OneArgo, which is expected to contribute to monitoring of ocean variability. In addition, recent expansion of marine biological data such as environmental DNA has led to a new phase of interdisciplinary ocean observation research. Establishing the complementary relationships between float, satellite and shipboard observations is important for the future promotion of interdisciplinary ocean science research. In this session, research results on ocean physics and biogeochemistry from these various observation platforms will be brought together and discussed. Presentations in this session are not limited to the global ocean observational studies, but are widely invited for regional- to basin-scale scale studies as well as model and machine-learning applications.