Five Deeps Expedition to map the Mariana Trench (Pacific Ocean)

The Mariana Trench was surveyed with a Kongsberg EM 124 gondola-mounted to the hull of the 225-foot DSSV Pressure Drop. The survey was conducted over the course of two weeks – April 19th – May 6th, 2019. The data meet the requirements for IHO Special Order standards.

马里亚纳海沟的勘测采用了配备于225英尺深海支援船'DSSV Pressure Drop'船体上的Kongsberg EM 124吊舱进行。此次勘测工作历时两周，具体时间为2019年4月19日至5月6日。所收集的数据符合国际海道测量组织（IHO）特殊订单标准。