Measurement content of ARGO plan

The implementation of the Argo plan, just like the sounding balloon used in meteorological observation, can easily obtain the data of ocean current, temperature and salinity, so it is helpful to understand the physical state of all layers of the global ocean. It can monitor the motion state of the ocean at any time, just like drawing synchronous weather maps in meteorology, thus greatly deepening the understanding of the vertical structure and circulation of temperature and salinity, as well as the process of energy and water balance in the ocean. It can also reveal the mechanism of air-sea interaction, improve the blindness of determining the initial field of the model, further improve the air-sea coupling model, and improve the ability of long-term weather forecast and short-term climate forecast. Therefore, the implementation of Argo Plan is of great scientific significance.