TOP HYDROGRAPHIC SURVEY IN BANGLADESH SECRETS

Facts lower than 3dB can't be made use of as it decides the utmost profiling choice of the gear. It may be witnessed that SNR is close to 0 dB beyond 10m-12m depth. Once again, all through slack water, the Lower off line for 3dB extends outside of because of the presence of substantial turbidity during the h2o columns.Hydrography is collected under