2016 – RV Tansuo 01 From 22 June to 12 August 2016 (cruises 2016S1 and 2016S2), the Chinese Academy of Sciences' 6,250-ton submersible support ship Tansuo 1 (meaning: to explore) on her maiden voyage deployed to the Challenger Deep from her home port of Sanya, Hainan Island. On 12 July 2016, the ROV Haidou-1 dived to a depth of in the Challenger Deep area. They also cast a free-drop lander, rated free-drop ocean-floor seismic instruments (deployed to ), obtained sediment core samples, and collected over 2000 biological samples from depths ranging from .Wen-Li Li, et al., "Periodic and Spatial Spreading of Alkanes and Alcanivorax Bacteria in Deep Waters of the Mariana Trench", Applied and Environmental Microbiology, January 2019, 85 (3) The Tansuo 01 operated along the 142°30.00' longitude line, about 30 nmi east of the earlier DY37II cruise survey (see Xiangyanghong 09 above).
2016 – rv tansuo 01 from 22 june to 12 august 2016 (cruises 2016s1 and 2016s2) the chinese academy of sciences' 6250-ton submersible support ship tansuo 1 (meaning to explore) on her maiden voyage deployed to the challenger deep from her home port of sanya hainan island on 12 july 2016 the rov haidou-1 dived to a depth of in the challenger deep area they also cast a free-drop lander rated free-drop ocean-floor seismic instruments (deployed to ) obtained sediment core samples and collected over 2000 biological samples from depths ranging from wen-li li et al "periodic and spatial spreading of alkanes and alcanivorax bacteria in deep waters of the mariana trench" applied and environmental microbiology january 2019 85 (3) the tansuo 01 operated along the 142°3000' longitude line about 30 nmi east of the earlier dy37ii cruise survey (see xiangyanghong 09 above)