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Decision 9.2 SOFF Impact Report

This document, prepared by the European Centre for Medium-Range Weather Forecasts (ECMWF) in collaboration with WMO, summarizes existing scientific studies on the impact of observations in forecast skill. It concludes that surface-based observations significantly impact forecast accuracy and that there is substantial evidence that investing in additional surface-based observations is highly beneficial. It further concludes that more scientific studies on the impact of surface-based observations are required to effectively guide SOFF investment priority decisions. It proposes scenarios for SOFF-tailored further research and experiments to fill existing knowledge gaps.

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Decision

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