Master tracks in different resolutions of METEOR cruise M169, Emden - Emden, 2020-12-11 - 2020-12-29

Raw data acquired by position sensors on board RV METEOR during expedition M169 were processed to receive a validated master track which can be used as reference of further expedition data. During M169 the motion reference unit Kongsberg SeaTex AS MRU-5 combined with Kongsberg SeaTex AS Seapath 320 and two C and C Technologies GPS receivers C-NAV3050 were used as navigation sensors. Data were downloaded from DAVIS SHIP data base (http://dship.bsh.de) with a resolution of 1 sec. Processing and evaluation of the data is outlined in the data processing report. Processed data are provided as a master track with 1 sec resolution derived from the position sensors' data selected by priority and a generalized track with a reduced set of the most significant positions of the master track.

本数据集由M169航次期间‘流星号（RV METEOR）’科考船搭载的位置传感器采集的原始数据处理得到，所生成的经过验证的主航迹（master track）可作为后续航次数据的参考基准。本次航次采用的导航传感器包括康斯伯格SeaTex AS MRU-5型运动参考单元（motion reference unit）、康斯伯格SeaTex AS Seapath 320型导航系统，以及两台C&C Technologies公司生产的C-NAV3050型GPS接收机。原始数据从DAVIS SHIP数据库（http://dship.bsh.de）获取，采样分辨率为1秒。数据的处理与评估细节详见配套的数据处理报告。本次提供的处理后数据分为两类：一类是基于优先级筛选的位置传感器数据生成的1秒分辨率主航迹；另一类是对主航迹中的核心关键位置进行精简后得到的概略航迹。