CTD cast underway Colombia-Panama passageA plot of CTD cast data shows profiling to the depth of 100 m, a well-visible thermocline at 60m with the same depths, a step-change of dissolved oxygen from 95% to 70% at the thermocline, and an increase at the thermocline of Chlorophyll as a tracer of phytoplankton and fDOM as a tracer of organic carbon.
