Velocity Profile Inversion by Nodal Constrained Genetic Algorithm Based on Electromagnetic Data of Marine Environment
The motion of seawater cutting the geomagnetic field will generate induced electromagnetic field,which is an important part of the electromagnetic field in the Marine environment.In order to en-rich the methods for obtaining parameters of Marine dynamic environment and further verify the relia-bility of the actual electromagnetic field observation results in Marine environment,this paper uses the difference between simulated magnetic field and measured magnetic field to construct an objective func-tion,and proposes a method to invert the velocity profile from the electromagnetic field induced by sea-water motion based on the vertical array node observation constrained genetic algorithm.A seawater model is constructed based on the observed velocity data in the South China Sea.The inversion test re-sults show that the inversion velocity has a high correlation with the model velocity and good noise re-sistance performance under the node constraint.The inversion results of the measured electromagnetic data of the Marine environment in the South China Sea show that the inversion velocity profile is in good agreement with the observed data of ADCP in the overall trend and detail characterization,which veri-fies that the inversion method has good practical application value.
万方数据
维普
