Mr. Rahmad Kurniawan Profile

Rahmad Kurniawan

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Proceedings Article | 29 January 2024 Paper

Accuracy test of GEBCO bathymetry data in the Flores Sea

Kintan Maulidina, Masita Dwi Mandini Manessa, Rahmad Kurniawan

Proceedings Volume 12977, 129770Q (2024) https://doi.org/10.1117/12.3009694

KEYWORDS: Remote sensing, Water, Oceanography, Satellites, Correlation coefficients, Satellite imaging, Data modeling, Ocean optics, Error analysis, Ecosystems, Earth observing sensors

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GEBCO (General Bathymetric Chart of The Ocean) is the international organization responsible for collecting, processing, and disseminating global bathymetric data. One of the data provided is the depth of the seabed. One of Indonesia's seas with a wealth of underwater physical characteristics is the Flores Sea. In this research, we validate the accuracy of the topographical information generated from GEBCO satellite images in the Flores Sea in deep and shallow waters. Seabed depth data is obtained free of charge via the official GEBCO website and processed using ArcGIS Pro software. Furthermore, the data obtained from GEBCO will be compared with data from MBES (Multi-Beam Echo Sounder) measurements. Data analysis was performed using statistical tests at each depth variation. The results obtained, as a whole, amounting to 96,227% of the GEBCO bathymetry data, can represent the measurement data in the deep water and only 0,916% in the shallow water. At each depth variation, the GEBCO bathymetry data does not show a consistent error trend. When analyzing the depth data, no pattern or trend can be identified, or it can be said that the distribution of the data does not follow a specific pattern.

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