EDMDiffusion v20 (diff20)

diff20-step062000-val0.4413.ckpt — PyTorch Lightning checkpoint, step 62000, val loss 0.4413 (includes optimizer state).
Paired VAE: ../vae/vae11_best.ckpt (its weights are also embedded in this checkpoint under vae.*).
latent_channel_scale (measured on vae11 latents) and ERA5 normalisation stats are stored in the checkpoint hyper-parameters.
Training config: scripts/configs/diffusion_v20_hpc.yaml in the ndvi-diffusion repo.