Data for "Multidecadal oscillation masks ocean wave climate trends in 75-year global wave hindcast"

This is dataset of ocean surface waves used in the following paper. Shimura, T., N. Mori, and T. Miyashita (2026) Multidecadal oscillation masks ocean wave climate trends in 75-year global wave hindcast, JGR-Oceans. https://doi.org/10.1029/2025JC022340 The data contains the annual mean and annual 90 percentile significant wave heights of the unstructured global wave hindcast based on JRA-3Q reanalysis.