Abstract:

The observation of temperature and salinity profiles under ice is an important aspect of polar marine environmental monitoring. The large number of ice floes is the main feature of the polar ocean environment. Conventional ocean observation equipment such as Argo buoys and underwater gliders cannot fixed positions and transfer satellite observations under the ice, which is also the main reason for the relative scarcity of temperature and salinity profile data and space–time discontinuity in the polar regions. To observe temperature and salinity profiles in the depth range of 0–200 m under the ice, we developed a real-time observation system based on the domestic HM2000 profiling buoy, which integrated the ice surface communication equipment and anchor platform. A breakthrough was achieved in the key technology of inductive coupling communication, and a two-way communication link between the shore station and profile buoy was established. In August 2018, the system was successfully deployed and applied in the ninth Arctic scientific expedition of China.

Key words:

"> polar region, Argo profiling buoy, HM2000 profiling buoy, real-time observation