| Journal: | Boletim de ciencias geodesicas |
| Database: | PERIÓDICA |
| System number: | 000457259 |
| ISSN: | 1413-4853 |
| Authors: | Ferreira, Italo Oliveira1 Oliveira, Julio Cesar de1 Santos, Afonso de Paula dos1 Silva, Arthur Amaral e1 Medeiros, Nilcilene das Gracas1 |
| Institutions: | 1Universidade Federal de Vicosa, Vicosa, Minas Gerais. Brasil |
| Year: | 2021 |
| Volumen: | 27 |
| Number: | 2 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | Due to waterway transport efficiency, mainly for commercial trades, the use of sea/river routes has grown recently. So, the importance of producing high quality nautical charts stands out. A nautical chart is the hydrographic survey final product and its accuracy depends on data quality collected, primarily of the vertical quality (depth). 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. 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. The results showed that P2P is easy to application, provide low computation effort, is robust and consistent. Besides that, was possible to applied successive regular lines to get a validation of the hydrographic survey |
| Disciplines: | Geociencias |
| Keyword: | Hidrología, Datos batimétricos, Sistema multihaz, Control de calidad, Método de punto a punto |
| Keyword: | Hydrology, Bathymetric data, Multibeam, Quality Control, Point to Point method |
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