Resource at https://data.marine.copernicus.eu/
https://data.marine.copernicus.eu/product/GLOBAL_MULTIYEAR_PHY_001_030/description

Resource at https://rda.ucar.edu/
https://rda.ucar.edu/datasets/ds260.1/dataaccess/

Resource at https://www.seanoe.org/
https://www.seanoe.org/data/00412/52367/