Earth Physics Transformer (EPT)
Jua's EPT weather model learns historical weather patterns and fundamental principles of atmospheric physics through its end-to-end transformer architecture. It is trained on both public and proprietary observational data, as well as physics-based simulations such as ERA5.
Key differences vs. traditional numerical modelling
End-to-end AI models learn both historical weather patterns and atmospheric physics using advanced neural networks trained on observational data and physics-based simulations. Jua's models can predict weather events beyond their training datasets by learning fundamental physics. Processing raw observational input directly into forecasts offers key advantages:
Accuracy
Generates accurate forecasts for hyper-local predictions.
Resource efficiency
Requires less computational power during inference.
Adaptation capability
Quickly incorporates new data patterns.
Resolution flexibility
Scales seamlessly across different resolutions.
Uncertainty handling
Directly outputs probability distributions.
Model Comparison
A detailed comparison of model capabilities
| Model | Spatial Resolution | Temporal Resolution | Model runs per day | Accuracy Score |
|---|---|---|---|---|
| Jua EPT-2 (Research Preview) | up to 1km | up to 15 min | up to 24 | 93% |
| Jua EPT-1.5 | 9km | 1 hour | 8 | 90% |
| DeepMind GraphCast | 25km | 6 hours | 4 | 88% |
| IFS | 9km | 1-6 hours | 4 | 85% |
| Nvidia FourCastNet | 25km | 6 hours | 4 | 83% |
| GFS | 13km | 1-6 hours | 4 | 82% |
EPT-2.0 – Next-Generation Weather Forecasting
What Makes EPT-2.0 Special?
Unlimited Runs
No longer restricted to the traditional four runs per day—run as many times as needed.
Understand Uncertainty
Natively supports numerous ensemble members for improved uncertainty estimation.
Any Height Level
Runs forecasts directly at any height without interpolation.
Flexible Spatial Resolution
Achieves resolutions as fine as 1 km for hyper-local forecasts.
Custom Lead Times
Generates forecasts at any interval, including minute-by-minute precision.
Ready to Explore EPT?
Get in touch with our team to learn how Jua’s EPT can transform your weather forecasting capabilities.