This invention provides a
deep learning method for reconstructing sea surface current fields based on multi-source air-sea spatiotemporal features, relating to the field of marine
data processing. Specifically, it includes: acquiring multi-year continuous sea surface
current velocity data and multi-source environmental
feature data for a target sea area; constructing a full-
field training sample in a continuous
time series manner, using multi-source environmental features from multiple consecutive historical moments as input to candidate
deep learning models, and using the full-
field data of the eastward and northward
current velocity components at a future target time as prediction labels; constructing velocity moduli using the eastward and northward current components; training candidate
deep learning models using a joint
loss function; evaluating candidate deep
learning models, selecting the optimal model, and using the optimal model to output the full-field
current velocity results at the target time. The technical solution of this invention overcomes the problem in existing technologies of difficulty in obtaining long-term, large-scale, spatially continuous sea surface current
field data.