The search was broken into two phases, the first of which provided a detailed map of the sea floor topography in the area.
The data has revealed never-before-seen detail underwater volcanoes, enormous ridges and deep fault valleys across 710,000 square kilometres of remote ocean.
Stuart Minchin, Geoscience Australia's environmental geoscience division chief, said only 10 to 15 per cent of the world's oceans had been surveyed with the kind of technology used in the search for MH370.
"This data is unique both because of the remote location of the search area, and because of the sheer scale of the area surveyed," Dr Minchin said today.
The data - packaged in maps at least 15 times higher resolution than what was previously available - was collected for the sole purpose of locating the aircraft but will be invaluable to the scientific community.
"This data will contribute to a greater understanding of the geology of the deep ocean and the complex processes that occur there," Minchin said.
"It will be important for a range of future scientific research, including oceanographic and habitat modelling."
Data from the second stage of the search, which collected sonar, photographic and video images of particular points of interest, is expected to be released next year.