Links to master tracks in different resolutions of POLARSTERN cruise PS122/3, Arctic Ocean - Longyearbyen, 2020-02-24 - 2020-06-04 (Version 2)

Raw data acquired by position sensors on board RV Polarstern during expedition PS122_3 was processed to receive a validated master track which can be used as reference of further expedition data. During PS122_3 two Trimble Marine SPS461 GPS receivers and the iXBlue HYDRINS hydrographic survey inertial navigation system were used as navigation sensors. Data were downloaded from DAVIS SHIP data base (https://dship.awi.de) with a resolution of 1 sec. Processing and evaluation of the data is outlined in the data processing report found at EPIC repository https://hdl.handle.net/10013/epic.7f6b45e2-0cfb-4987-84e6-57f31a64727d. 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.本数据集对极星号科考船（RV Polarstern）在PS122_3航次期间由船载位置传感器采集的原始数据进行处理，以生成可供后续航次数据参考的经验证主航迹。本次PS122_3航次所用的导航传感器包括两台Trimble Marine SPS461型GPS接收机，以及iXBlue HYDRINS型水声测量惯性导航系统。数据从DAVIS SHIP数据库（https://dship.awi.de）下载，采样分辨率为1秒。本数据集的处理与评估流程详见EPIC知识库中收录的数据处理报告，链接为https://hdl.handle.net/10013/epic.7f6b45e2-0cfb-4987-84e6-57f31a64727d。本次提供的处理后数据包含两类：一类为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；另一类为从主航迹中提取核心关键位置得到的简化航迹。