Time-series data of physical oceanography and ocean current velocities were obtained from mooring F3-20 in the Fram Strait from July 2022 to July 2024 as part of the Helmholtz infrastructure program Frontiers in Arctic Marine Monitoring (FRAM) legacy and the West Spitsbergen Current array long-term monitoring. The mooring was deployed during RV Polarstern expedition PS131 (ATWAICE) and recovered during PS143/2 (FRAM/Hausgarten). The attached archive contains raw data files of three Seabird SBE37 MicroCATs (nominal depths: 41m, 226m, 732m; sampling interval 10min/1h), one RDI upward-looking RDI 150kHz Quartermaster ADCP (nominal depth: 223m; sampling interval 1h), and two Nortek Aquadopp single-point current meters (nominal depths: 731m, 1053m; sampling interval 20 min). Auxiliary information, such as sensor calibration sheets, mooring diagrams, and schedule files, is also provided, if applicable. Additional note: the SBE37 at 732m had problems with the conductivity measurements from December 2023 onwards.

The file F3-20.zip contains all available sensor raw data from the mooring F3-20. The structure of the unzipped folders is mooring->sensor/sampler type->serial number->instrument files. All instruments were synchronized 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 PS131 and PS143/2 onboard RV Polarstern. Many individuals have contributed to the conception of the research, the preparation of the instruments, the deployments and recoveries, and the retrieval of the data, which we greatly appreciate. We acknowledge support from the Helmholtz infrastructure program "Frontiers in Arctic Marine Monitoring", and the Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung.