Depending on the size of the data and your technical comfort level, you can choose from several download methods: 1. Direct Web Downloads

Offers a vast array of Earth science datasets. Users can search for and download specific NetCDF-4/HDF5 formatted files via the Earthdata Search tool.

For those specifically looking for precipitation data, the GPM Data Directory provides links to IMERG datasets in NetCDF format.

NetCDF is a set of software libraries and self-describing, machine-independent data formats. Its primary advantage is its ability to package massive datasets—such as global temperature grids or satellite imagery—alongside the metadata needed to understand them. Top Sources to Download NetCDF Data

A primary repository for geophysical and climate data. You can access the NCEI Geoportal to find Coastal Relief Models and bathymetric data.

Essential for oceanographic research, the Argo GDAC servers allow users to download ocean profiles directly via FTP or web interfaces. Methods for Downloading NetCDF Files