Inline measurement techniques

The term in situ is in oceanography mostly used with instruments that measure properties directly in the sea: In situ measurement, in situ sensor, in situ instrument.

The term is also used to describe the temperature that a water volume has at the depth it is located: In situ temperature.

A related topic are Inline measurements: Sensors or instruments are situated in a flow-through system, e.g., on board a ship, in which water is pumped from the outside. This technique is applied in the FerryBox. The advantages of Inline measurements are:

• The sensors are well protected and therefore have a longer lifetime
• The calibration of the sensors is more stable and the calibration procedure is easier
• Biofouling can easily prevented by applying chemical methods (cleaning).