: Alexandrium spp., harmful algae, Onagawa Bay, warm-core ring, Satellite remote sensing
Water mass, Chromophoric dissolved organic matter (CDOM), ocean color remote sensing, Supervised machine learning technique, Chlorophyll-a
hypoxia, heat flux, water temperature, Coastal Oyashio, mixed layer
phytoplankton monitoring, ocean acidification, diatoms, dinoflagellates, Pacific Decadal Oscillation