The results showed that P2P is easy to application, provide low computation effort, is robust and consistent. Thus, this study has two main objectives: i) to propose a method, called Point to Point (P2P), for obtaining “homologous points” for hydrographic surveys carried out with multibeam systems, without resorting to mathematical and/or statistical interpolations, called Point to Point (P2P) ii) to quantify the magnitude of the difference between the statistical evaluation using check lines (CL) and by overlapping successive sounding lines (SL), applying the P2P method. In this sense, despite the theoretical and practical difficulty in obtaining homologous points in hydrographic surveys, even when performing check lines, bathymetric data must always be delivered with a statistically proven confidence level. A nautical chart is the hydrographic survey final product and its accuracy depends on data quality collected, primarily of the vertical quality (depth). So, the importance of producing high quality nautical charts stands out. Emails: About the authorsĭue to waterway transport efficiency, mainly for commercial trades, the use of sea/river routes has grown recently. Universidade Federal de Viçosa, Programa de Pós-Graduação em Engenharia Civil, Viçosa-MG, Brasil.
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