Application of Delft3D-FM model to Keswick Reservoir in California, for short-term (days) simulations. Model archive includes source code (open-source, created by Deltares in the Netherlands), input files, and output files in netCDF format. Source code will need to be compiled for the operating system and hardware being used. Instructions are included with the source code. A separate data release (https://www.sciencebase.gov/catalog/item/62e16507d34e10763b599008) contains related field data that have been used as input for model calibration runs.