WHAT DOES HYDROGRAPHIC SURVEY IN BANGLADESH MEAN?

Information under 3dB cannot be utilized as it determines the utmost profiling range of the products. It could be found that SNR is near to 0 dB past 10m-12m depth. All over again, through slack h2o, the Lower off line for 3dB extends further than due to presence of superior turbidity while in the h2o columns.Additionally, expanding cities and nati