Temperature-pressure data over the central and eastern abyssal Pacific Ocean from the Trans-Pacific Transit Expedition

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Surface-to-seafloor temperature-pressure profiles were obtained during the R/V Dagon Trans-Pacific Transit (TPT) voyage in 2023-24. The TPT voyage occurred over six individual legs, with the duration of each leg approximately 21 days between June 2023 and January 2024. Autonomous landers descend at an average speed of 0.8 ms-1, spend 8 hours on the seafloor, and then return to the surface by releasing their ballast weights via an acoustic modem. On these lander frames was a temperature (t) and pressure (p) logger (RBRduet|deep) mounted to the lander frame measuring at 2, 16 or 32Hz with an accuracy of 0.002degC and 0.05% full-scale respectively