Oceanographic data and information collected during the EX1605L3 (CAPSTONE CNMI & Mariana Trench MNM (ROV & Mapping)) on NOAA Ship OKEANOS EXPLORER in the North Pacific Ocean from 2016-06-17 to 2016-07-10 (NCEI Accession 0156334)

This dataset contains oceanographic data collected in the deep water areas around the Commonwealth of the Northern Marianas Islands (CNMI). Operations for this cruise included ROV, mapping, telepresence-based remote participation, and CTD rosette operations. Operations also used the ship’s deep water mapping systems, NOAA’s two-body 6000 m remotely operated vehicle, and the ship’s high-bandwidth satellite connection for real-time ship to shore communications. Daytime ROV dives were planned every day and included high-resolution visual surveys and limited rock and biologic specimen sampling. Mapping operations were conducted overnight when the ROV was on deck and CTD casts were taken to collect more environmental information at sites of interest. Exploration operations for this cruise focused on deep-water areas around CNMI and the Marianas Trench Marine National Monument (MTMNM). This expedition helped establish a baseline of information in the region to catalyze further exploration, research, and management activities.

本数据集收录了北马里亚纳群岛联邦（Commonwealth of the Northern Marianas Islands, CNMI）周边深水海域采集的海洋学数据。本次科考航次的作业内容涵盖遥控无人潜水器（Remotely Operated Vehicle, ROV）作业、海底测绘、基于远程临场技术的远程参与，以及温盐深采水器（CTD rosette）部署作业。本次作业还使用了母船的深水测绘系统、美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）的双体6000米级遥控无人潜水器，以及母船的高带宽卫星通信链路以实现船岸实时通信。每日均规划开展日间遥控无人潜水器下潜作业，作业内容包含高分辨率视觉勘测，以及有限规模的岩石与生物标本采样。当遥控无人潜水器回收至甲板时，夜间则开展海底测绘作业，并在目标站位投放温盐深采水器以采集更多环境信息。本次航次的勘探作业重点覆盖CNMI周边及马里亚纳海沟海洋国家纪念地（Marianas Trench Marine National Monument, MTMNM）的深水海域。本次科考航次为该区域建立了基准信息数据集，可推动后续的勘探、研究与管理活动开展。