Applying Scenarios: Downscaling GCM scenarios coarse resolution (100s of kms / monthly) Dynamic methods retain internal physical consistency high resolution AGCMs, Regional Climate Models (RCMs) Statistical methods less costly/less complicated Weather generators – LARS-WG, Multiple linear regression - SDSM Best solution often not to downscale at all interpolate (introduces false geographical precision) apply change fields from larger spatial scale to working scale
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