Benthic and Resistivity Sensors
Benthic and Resistivity Sensors (BARS) collect measurements from hydrothermal vents, using sensors to measure resistivity, temperature, eH (oxidizing nature of seawater components) and hydrogen.
BARS instruments can estimate chloride concentration, temperature, and redox potential within a black smoker vent by recording a time series of fluid resistivity. The region of active geothermal venting, measured by BARS sensors, shows extremely variable temperatures as hot hydrothermal fluid is cooled quickly by surrounding sea water.
Individual instruments of the above category, which are (or have been) connected to our observatories. Click an instrument for detailed information.
Click the instrument categories below for descriptions and lists of instruments belonging to that category.