Sonar Mapping Shines New Light On Uss Utah

The target and training ship took two torpedoes on Dec. 7, 1941, capsized and was only partially righted using cables that are still apparent on the rusting hull, the National Park Service said. On Thursday, Daniel Martinez, chief historian for the World War II Valor in the Pacific National Monument, pointed out deterioration that has occurred in recent decades. What's happening beneath the waves is less clear, but some sophisticated technology is giving the National Park Service and Navy a better picture of the memorial. An unmanned surface vessel from Deep Ocean Engineering in San Jose, Calif., also provided sonar mapping, and divers took underwater pictures of the ship. [...] detailed is the sonar, LIDAR (light detection and ranging) and photo mapping of the Arizona that it can be used for 3-D printing -- and it already has been, with the unveiling in May of resin printouts of a full-scale 1941 coral-encrusted Coke bottle and a one-third scale deteriorated cooking pot found near the Arizona's galley.

 

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