Continuous GNSS raw data measured from POLARSTERN deck during the MOSAiC expedition with POLARSTERN to the Arctic on 2019-12-05

Raw data acquired by a JAVAD Delta 3 GNSS Receiver with a resolution of 50Hz on board RV Polarstern during the MOSAiC expedition.
The data is stored in JAVAD's .jps format (JAVAD GNSS, GREIS – GNSS Receiver External Interface Specification, San Jose, USA, 2022 (download available at https://www.javad.com/jgnss/support/manuals.html)). Each file contains data of one day with a typical file size of 1GB. The receiver was equipped with a multi-frequency GNSS antenna which was mounted on the ship's observation deck. It has to be noted that the main mast and the ship's chimney lead to a shadowing of GNSS observation links in at least two directions seen from the antenna position. The data was collected for measuring scintillation activitiy in the central arctic. Processed scintillation measurements with a 1 minute resolution are available (doi:10.1594/PANGAEA.956019).

本数据集为MOSAiC北极气候多学科漂流科考期间，搭载于极星号（RV Polarstern）科考船的JAVAD Delta 3型全球导航卫星系统（GNSS）接收机采集的原始观测数据，采样分辨率达50Hz。该数据以JAVAD专属的.jps格式存储，遵循美国圣何塞JAVAD GNSS公司2022年发布的《GREIS——GNSS接收机外部接口规范》，相关规范可从https://www.javad.com/jgnss/support/manuals.html下载获取。每份数据文件对应单日观测数据，典型单文件大小约为1GB。该接收机搭载的多频GNSS天线安装于科考船的观测甲板上。需特别说明的是，从天线安装位置视角出发，科考船的主桅杆与烟囱会对至少两个方向的GNSS观测链路造成信号遮挡。本次数据采集的核心目标为开展北极中心区域的电离层闪烁活动观测。另有经后处理的1分钟分辨率电离层闪烁测量数据可供获取，其DOI编号为10.1594/PANGAEA.956019。