The Jiaolong completed its first dive of this voyage.
2014-07-22 09:00
On July 16, China's Jiaolong manned submersible conducted its first dive of this year's experimental application voyage in the Caimei Seamount area of the Northwest Pacific Ocean, successfully completing its planned objectives.
According to the Jiaolong manned submersible experimental application voyage on-site command center, Jiaolong was launched at 7:28 a.m. local time on July 16 and recovered to the deck at 5:08 p.m., reaching a maximum depth of 2424 meters and spending 9 hours and 34 minutes underwater. This dive reviewed the submersible's system functions and tested the submersible's onboard miniature remotely operated vehicle (ROV), achieving the expected results.
During this dive, Jiaolong conducted near-bottom observations of giant benthic organisms, cobalt-rich crusts, and rocks along a slope with an elevation difference of approximately 900 meters. It collected sediment and water samples and used bathymetric side-scan sonar to measure the seabed micro-topography, completing its planned tasks.
Experts from the Jiaolong experimental application scientific expedition team stated that, based on the investigation and analysis conducted by the submersible on the seabed, the area is primarily composed of sediments, with a relatively small distribution of cobalt-rich crusts, mainly consisting of pebble-like crusts and a small amount of plate-like crusts. A large number of gravels were also present, indicating that this geomorphic unit is not conducive to crust growth. Giant benthic organisms are mainly starfish, fish, and shrimp, with very few sponges and corals, suggesting that the seabed topography has a significant controlling effect on the distribution of cobalt-rich crusts and giant benthic organisms.
It is reported that Jiaolong plans to conduct its second dive of this voyage on July 17. The main tasks include observing and photographing giant benthic organisms and cobalt-rich crusts, and collecting samples of giant benthic organisms, cobalt-rich crusts, rocks, sediments, and bottom water.
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