Underway Data From the EV Nautilus Cruise NA056 Conducted 09-21 April 2015 in the Northern Gulf of Mexico

The EV Nautilus provides and operates a number of acoustic and imaging systems which are considered to be part of the ship's equipment or its remotely operated vehicles (ROVs). Some or all of these systems may be turned on or off at the discretion of the ship's science support staff or at the request of the Principal Investigator. These data are supplemental and are provided to the Principal Investigator as part of the services provided by the ship lease. These data are provided in a fixed directory structure which is documented in the file names.EV Nautilus号配备并运行有多套声学与成像系统，此类系统被归类为船舶配套设备或其搭载的遥控水下机器人（Remotely Operated Vehicles，ROVs）的组成部分。部分或全部此类系统的启用与关停，可由船舶科学支持人员自主决定，亦可应首席研究员（Principal Investigator）的要求进行操作。此类数据属于补充数据集，将作为船舶租赁服务所提供的配套服务内容之一，交付给首席研究员。此类数据采用固定目录结构存储，相关目录结构的说明已记录在文件名中。