About 330 shipwrecks remain lost off Victoria's treacherous coastline. Thanks to an Australian science vessel, there are new hopes many will be found.
The Investigator confirmed its location in 2017.
"If they see an anomaly — something on the seabed that doesn't look natural — they can then send a camera or ROV [remote operated vehicle] down for a visual, which is what we call ground truthing, to see if it is indeed a shipwreck."The main purpose of RV Investigator's sonar sensors is to map the floor of the ocean, which in turn allows the CSIRO to find bathymetric features such as underwater mountains and continental shelf slopes.
"There's sophisticated technology on board and as well as revealing natural features it can also uncover man-made objects including shipwrecks."Dr Arthur said the equipment used to map the ocean floor had some similarities to what anglers would call a "fish finder", centring on acoustic systems. "Material on board shipwrecks actually preserves quite well under water, particularly underneath the sediment compared with on land," she said.
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