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Over 279,000 square kilometers of high-resolution multibeam echosounder data were collected in the remote southeast Indian Ocean during the search for Malaysia Airlines Flight MH370. The dataset, acquired by the Australian Ocean Data Network, provides the first large-scale coverage of this region and reveals previously unmapped seafloor features. This data significantly improves upon coarser satellite-derived models, with over 38% of satellite depth estimates differing by more than 100 meters.
Data is presented in HTML format; the underlying raw data files (e.g., point clouds, grids) may require separate access. The primary purpose was search operations, which may influence data collection patterns.