Sub-season-season refined prediction method and system for globally focusing Yellow River basin

The embodiment of the invention provides a sub-season-season refined prediction method and system focusing on the Yellow River basin globally, and the method comprises the steps: processing original CRA40 data, GFS data and OSTIA data into a data format which can be used for mode input, driving an FGOALS-f2 mode to operate, employing the FGOALS-f2 mode to carry out the numerical simulation through employing a power set prediction technology, and obtaining a prediction result. Obtaining a numerical simulation result; inputting the numerical simulation result into an FGOALS-UFS mode, performing regional zoom encryption prediction by using the FGOALS-UFS mode to generate prediction data, and converting the prediction data output by the FGOALS-UFS mode into longitude and latitude grid prediction data convenient for subsequent analysis; and taking a NetCDF data format as a standard, generating common data required by business prediction by using the longitude and latitude grid prediction data, interpolating to a r