MicroCAT data (temperature, conductivity, salinity and pressure) from a single-point mooring in the Darwin Mounds Marine Protected Area (Northeast Atlantic Ocean) funded by CLASS (Climate Linked Atlantic Sector Science) from September 2019 to October 2020.

This dataset consists of data (temperature, conductivity, salinity and pressure) collected by two moored MicroCATs (s/n 12456 and 12458) on the Darwin Mounds Long-Term Mooring, Northern Rockall Trough, Northeast Atlantic Ocean from September 2019 to October 2020. The mooring was deployed on cruise DY108 (109) and recovered on cruise DY120. MicroCAT s/n 12456 was fixed onto the mooring at 949 m depth, while MicroCAT s/n 12458 was fixed at 1024 m depth. All data were logged directly to the MicroCATs and downloaded upon mooring recovery. Only a few direct measurements have been made of the near-bed nature of the hydrodynamic regime in contourite drifts, hence the measurements from this mooring are intended to understand the temporal variability of near-bed currents within a Marine Protected Area. These currents are likely responsible for supplying oxygenated and nutrient-rich waters to the benthic fauna that exist here.