SFNO Training Codebase for "Huge Ensembles Part I: Design of Ensemble Weather Forecasts using Spherical Fourier Neural Operators"

This is the training codebase of SFNO used to train SFNO to create ensemble weather forecasts.  It is based on modulus-makani v0.1.0: the github tag is here https://github.com/NVIDIA/modulus-makani/tree/v0.1.0