Time-series data of physical oceanography and ocean current velocities were obtained from mooring SCO3-1 in the Fram Strait from Aug 2018 to Aug 2022. The mooring was deployed during RV MARIA S. MERIAN expedition MSM76 and recovered during RV POLARSTERN expedition PS131. The attached archive contains raw data files of two Seabird SBE16 SeaCATs (nominal depths: 246m, 405m; sampling interval 1h), one SBE37 MicroCAT (nominal depths: 296m; sampling interval 10m), two SBE56 temperature logger (nominal depths: 326m, 366m; sampling interval 20s) and one RDI Longranger ADCP (nominal depth: 404m; sampling interval 2h). Auxiliary information such as sensor calibration sheets, mooring diagrams, and schedule files are also provided, if applicable. One SBE56 (366m), the ADCP (404m) and one SBE16 (405m) were lost during recovery.

The file SCO3-1.zip includes all available sensor raw data from mooring SCO3-1. The structure of the unzipped folders is mooring->sensor/sampler type->serial number->instrument files. All instruments were synched to UTC before deployment, and the offset after the recovery is supplied in the respective instrument folder, if available. The archive also contains the sensor calibration sheets/files and relevant sampler schedule files, if available. Finally, mooring schematics are also attached as pdfs in the root folder.The authors are grateful to the captains, crews and technical/scientific staff of the expeditions MSM76 onboard RV Maria S. Merian and PS131 onboard RV Polarstern. Many individuals have contributed to the conception of the research, the preparation of the instruments, the deployment and recoveries, as well as to the retrieval of the data, which we greatly appreciate.