Universal Planet Simulator
OASIS is a modular 3D planetary climate model developed in the Planetary Climate Physics Group at the University of Southampton, UK. It is designed for comparative climate studies of Earth, Solar System planets, and exoplanets.
The model combines a fully compressible non-hydrostatic dynamical core with a growing suite of physics components and high-performance CPU/GPU workflows.
Model Goals
Study atmospheric circulation across Earth, Solar System planets, and exoplanets.
Connect dynamics, radiation, chemistry, clouds, surfaces, and oceans in one research framework.
Support scalable CPU/GPU simulations for long integrations and parameter studies.
Provide physically interpretable diagnostics for comparison with observations.
Technical Profile
Icosahedral horizontal grid
Fully compressible non-hydrostatic dynamical core
MPI domain decomposition
Optional CUDA acceleration
Planet-specific JSON configuration
CMake preset build workflow
Documentation Strategy
A short README, detailed docs, and a public software page.
The GitHub README is kept as a concise front door for the project. Detailed build, run, configuration, restart, testing, and developer notes live in the repository documentation, while this website presents the model and its research context for a broader audience.