This dataset contains results from a Regional Ocean Modeling System (ROMS) that covers the northwestern Atlantic Ocean, including the U.S. East Coast, Caribbean, and Gulf of Mexico. The model uses a horizontal grid spacing of 7 kilometers (1/15 degree) and has 36 vertical layers. It applies a 4D variational data assimilation algorithm with a strong constraint, assimilating satellite-based sea surface height and sea surface temperature measurements as well as in situ temperature and salinity profiles. The dataset contains model output for the two-year study period from 2017 to 2018, including sea surface height, ocean current components (u and v), temperature, and salinity.

For details on model construction, validation, and data analyses, please refer to Mao et al. (Deep Sea Research, in revision).