Research of Common Mode About Hydrographic Water Level Correction

In order to meet the actual needs of the development of hydrography,based on the single-beam bathymetric partition correction point by point and hour by hour,a virtual single tide gauge data correction model is presented for the single,multibeam sounding system.Based on the time-difference method,the least squares fitting mathematical models and the numerical prediction of ocean tides model,the correction software of the coastal and offshore water depth measurement is developed.The mathematical model of the software is scientific,and its results are intuitive and reliable,suitable for the correction of water hydrographic survey.