NOAA Earth TOPOgraphy global relief model 30 arc-second resolution (ETOPO-30): The ETOPO Global Relief Model integrates topography, bathymetry, and shoreline data from regional and global datasets to enable comprehensive, high resolution renderings of geophysical characteristics of the earth’s surface. The model is designed to support tsunami forecasting, modeling, and warning, as well as ocean circulation modeling and Earth visualization.
This dataset can be found at: https://www.ncei.noaa.gov/products/etopo-global-relief-model