Model Class
3D planetary climate model
OASIS Software
Research software for planetary climate simulation
OASIS is a modular 3D planetary climate model developed in the Planetary Climate Physics Group at the University of Southampton, UK. The model is designed to support comparative climate studies across Earth, Solar System planets, and exoplanets.
It combines a fully compressible non-hydrostatic dynamical core, planet-specific configuration, modular physics components, and high-performance CPU/GPU workflows in a single research framework.
Dynamical Core
Fully compressible, non-hydrostatic
Execution
CPU workflows with optional CUDA acceleration
Software Architecture
A model framework for controlled planetary experiments
OASIS is structured to let researchers move from idealised tests to planet-specific simulations while preserving clear ownership of model constants, runtime choices, physics tuning, and technical execution settings.
Planetary Dynamics
OASIS is built around an icosahedral-grid dynamical core for studying atmospheric circulation across Earth, Solar System planets, and exoplanets without relying on an Earth-only model design.
Fully compressible non-hydrostatic equations
Icosahedral horizontal grid
MPI domain decomposition for large simulations
Coupled Climate Physics
The software is developed as a modular framework where dynamics can be connected with radiation, chemistry, clouds, surfaces, and oceans as research components mature.
Configurable physics and runtime parameter files
Planet-specific JSON definitions
Diagnostics for comparison with observations
Research Computing Workflows
OASIS is designed for reproducible high-performance workflows, from documented example cases to parameter studies and long integrations on CPU or GPU-capable systems.
CMake preset build workflow
CPU builds and CUDA-enabled GPU builds
Scripts, tools, tests, and plotting utilities
Research Goals
Built for comparative climate science
OASIS is being developed to support controlled numerical experiments across a wide range of planetary atmospheres, from idealised tests to observation-driven case studies.
Develop a unified modelling framework for comparative planetary climates.
Connect model diagnostics with current and future observations of planets beyond Earth.
Study circulation, radiation, chemistry, clouds, surfaces, and oceans within one model framework.