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An important phase of hydrographic works planning is the assessment of the components that should be taken into consideration during planning and during qualitative evaluation of results. There are many procedures based on statistical calculations and historical experience. Besides, it is possible to verify certain ideas or the correctness of collected research material by its comparison to the simulation...
The methods of identification and cassification of sea-bottom sediments and sub-bottom layers are presented. However, specjal emphasis is done to real-time methods which can be employed separately or together with other surveying methods, and during realization of the other navy ships tasks. The employment of the presented methods is referred to the proper types of echo sounding systems or sonar systems...
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