Self-contained submersible buoy observation system

　　Observation elements:

　　1. Profile flow velocity and direction;

　　2. Profile temperature, salinity, and bottom ocean currents;

　　3. The observation focus is on upper ocean currents and lower ocean currents;

　　4. Temperature and salinity profiles near ocean currents and thermocline.

　　The main floating body can be equipped with multiple sets of ADCP, CTD and other instruments, with a range of more than one year. It can monitor marine environmental factors such as underwater temperature, salinity, and ocean currents for long-term, fixed-point, continuous, and multi element monitoring.