Raw seawater temperature, conductivity and salinity obtained at different depths by CTD buoy 2019O6 as part of the MOSAiC Distributed Network

A set of eight ice-tethered buoy systems (2019O1 to 2019O8) were deployed by the Akademik Fedorov in the Northern Laptev Sea in early October 2019 as part of the MOSAiC Distributed Network. Each buoy consisted of 5 Seabird SBE37IMP Microcat CTDs mounted along an inductive modem tether at depths of 10, 20, 50, 75 and 100m. The buoys were installed on stable sea ice floes (designated as “M-sites”) at a distance of 15-35 km around the main MOSAiC ice camp, and co-located with Snow Buoys, Ice Mass Balance Buoys and D-TOP ocean profilers. The individual instruments were programmed to record oceanographic data internally at 2-minute intervals. The surface unit of the buoy prompted the instruments for an additional measurement every 10 minutes, which was then transmitted to a base station via iridium along with GPS position and time, as well as surface temperature. After a several months long drift through the Central Arctic Ocean, 4 out of 8 buoys were recovered in August 2020, and the internally recorded data from the CTDs were secured. The attached zip archive comprises the unprocessed 10-minute data transmitted by buoy 2019O6 (.txt file), as well as the 2-minute data downloaded and converted from the 5 individual CTDs after their recovery (either .cap or .cnv). A processed and quality controlled version of this dataset will be supplemented and linked to upon completion. A link to a data paper describing the processing will be given below.

8套冰系泊浮标系统（编号2019O1至2019O8）于2019年10月初由“费奥多罗夫院士号（Akademik Fedorov）”科考船在拉普捷夫海北部部署，作为MOSAiC分布式观测网络（MOSAiC Distributed Network）的组成部分。每套浮标均搭载5台海鸟（Seabird）SBE37IMP Microcat型温盐深仪（CTD），沿感应调制解调器系绳分别布放在10、20、50、75和100米水深处。这些浮标被安装在主MOSAiC冰营周边15至35公里范围内的稳定海冰浮冰上（编号为"M-sites"），并与积雪浮标（Snow Buoys）、冰质量平衡浮标（Ice Mass Balance Buoys）及D-TOP型海洋剖面仪（D-TOP ocean profilers）同址布设。各台仪器均被编程设置为以2分钟为间隔，在本地存储海洋学观测数据。浮标的水面单元每10分钟触发仪器进行一次额外测量，随后将该测量数据与GPS定位、时间信息及表层水温一同通过铱星（Iridium）通信系统传输至基站。在北冰洋中部历经数月漂流后，8套浮标中有4套于2020年8月被回收，温盐深仪的本地存储数据得以完整获取。本次附带的压缩包包含浮标2019O6传输的未处理10分钟间隔数据（.txt文件），以及回收后从5台独立温盐深仪中下载并转换得到的2分钟间隔数据（格式为.cap或.cnv）。本数据集经过处理与质量控制的版本将在完成后补充并附上链接。下文将提供一篇阐述该数据处理过程的数据论文链接。