Biogeochemical-Argo (BGC-Argo) is a network of profiling floats carrying sensors that
enable observation of as many as six essential biogeochemical and bio-optical variables:
oxygen, nitrate, pH, chlorophyll a, suspended particles, and downwelling irradiance. This
sensor network represents today's most promising strategy for collecting temporally and
vertically resolved observations of biogeochemical properties throughout the ocean. All data
are freely available within 24 hours of transmission. These data fill large gaps in ocean …