CTD (Conductivity, Temperature, and Depth)

CTD stands for Conductivity, Temperature, and Depth, which are key measurements used by oceanographers to understand water properties. Conductivity indicates how well water conducts electricity, relating to its salt content (salinity). Temperature measures how warm or cold the water is. Depth provides the water's position relative to the surface, often determined by pressure sensors. Together, these measurements help scientists analyze ocean conditions, study marine environments, and understand processes like water circulation and climate change. CTD devices are typically lowered into the water on a cable, gathering data at various depths for detailed analysis.