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Ensemble Restart Processing

What is meant by upscaling or downscaling a restart file?

Upscaling: refers to expanding a single-member (or realization) LIS-generated restart file to an ensemble of members (or model realizations) that can be used for ensemble model runs. This feature could be helpful to someone interested in performing a simulation of an ensemble of model realizations or data assimilation, but have only model member run for one single realization.