2019 AUV Sentry vehicle-corrected navigation and raw magnetic sensor data, Marion Rise – South West Indian Ridge

This data set consists of raw magnetic field measurements and vehicle-corrected navigation for autonomous underwater vehicle (AUV) Sentry dives over Marion Rise portion of the South West Indian Ridge collected in 2019 during research cruise TN365 on R/V Thomas Thompson. AUV Sentry is operated as part of National Deep Submergence Facility (NDSF) by Woods Hole Oceanographic Institution (WHOI) and is funded by the National Science Foundation (NSF). The AUV Sentry magnetometer is an APS (Applied Physics Systems) model 1540 3-axis fluxgate sensor(https://www.appliedphysics.com/products/magnetometers/). AUV Sentry has three magnetometer sensors, two are located mid-body on the port and starboard side and one is located in the top of the vehicle. This data file contains raw magnetic field data from the 'top' sensor which is also identified as the '02' sensor. Navigation is by ultra-short base-line (USBL). The data files are in ASCII format with the following columns: year, month, day, hour, min, sec, longitude(dec. degrees), latitude (dec. degrees), depth (meters), pressure (decibars), heading (degrees), pitch (degrees), roll (degrees), altitude (meters), mag02x (nT), mag02y (nT), mag02z (nT), optical backscatter sensor OBS (volts), redox potential eh (volts), rate of change of redox potential dehdt (volts/second), oxygen O2 (micromolar), temperature (celsius), conductivity (siemens/meter), sound speed (meters/second), sound velocity profile SVP (meters/second). The data set was collected under grant OCE-1657983 from the US National Science Foundation with additional support for ship time and Sentry deployment provided through the State Key Laboratory of Tongji University, Shanghai, China.

本数据集包含2019年由“托马斯·汤普森”号（R/V Thomas Thompson）科考航次TN365期间，在西南印度洋海岭马里恩海隆（Marion Rise）区域开展的“森特号”（Sentry）自主水下航行器（autonomous underwater vehicle, AUV）的原始磁场测量数据与航行器校正后的导航数据。
“森特号”AUV由伍兹霍尔海洋研究所（Woods Hole Oceanographic Institution, WHOI）作为国家深潜设施（National Deep Submergence Facility, NDSF）的组成部分进行运维，并由美国国家科学基金会（National Science Foundation, NSF）提供资助。
“森特号”AUV搭载的磁力仪为应用物理系统公司（Applied Physics Systems, APS）1540型三轴磁通门传感器（详见https://www.appliedphysics.com/products/magnetometers/）。
“森特号”AUV共搭载三台磁力仪传感器：两台布置于航行器中段的左舷与右舷，另一台布置于航行器顶部。本数据文件包含编号为“02”的顶部传感器的原始磁场数据。
导航系统采用超短基线（ultra-short base-line, USBL）定位。
数据文件采用ASCII格式，各列依次为：年份、月份、日期、小时、分钟、秒、经度（十进制度）、纬度（十进制度）、深度（米）、压力（分巴）、航向（度）、俯仰角（度）、横滚角（度）、高度（米）、mag02x（纳特斯拉，nT）、mag02y（纳特斯拉，nT）、mag02z（纳特斯拉，nT）、光散射传感器（optical backscatter sensor, OBS）信号（伏特）、氧化还原电位Eh（伏特）、氧化还原电位变化率dehdt（伏特/秒）、溶解氧O2（微摩尔）、温度（摄氏度）、电导率（西门子/米）、声速（米/秒）、声速剖面（sound velocity profile, SVP）（米/秒）。
本数据集依托美国国家科学基金会OCE-1657983号资助项目采集，并由中国上海同济大学国家重点实验室提供科考船时程与“森特号”部署的额外支持。

搜集汇总

背景与挑战

背景概述

该数据集包含2019年AUV Sentry在西南印度洋脊Marion Rise区域收集的原始磁场测量和车辆校正导航数据，使用APS 1540三轴磁通门传感器，数据以ASCII格式记录多列参数如位置、深度和磁场分量。数据由美国国家科学基金会资助，并得到中国同济大学支持，适用于海洋地球科学研究。