<p>This study presents SD-EQM_GCMs_IT, a new high-resolution climate projection ensemble dataset over Italy, designed to support climate impact assessments and adaptation strategies. It is derived by statistically downscaling nine CMIP6 General Circulation Models (GCMs) using the Copernicus European Regional ReAnalysis (CERRA) as a training dataset. The Empirical Quantile Mapping (EQM) method ensures a realistic statistical distribution and enhances local climate characterization. The dataset provides daily values at 0.05° resolution from 1985 to 2100 for six Essential Climate Variables (ECVs), including temperature, humidity, wind speed, and precipitation. Two climate scenarios are considered: SSP1-2.6 and SSP3-7.0, for low and high challanges to mitigation and adaptation respectively. This dataset enhances the current climate information available for Italy by bridging the gap between existing CMIP6 global projections and the absence of an ensemble of regional climate models for the same scenarios. By offering high-resolution data, it equips policymakers, industries, and communities with refined climate insights to enhance resilience and adaptation efforts.</p>

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Statistical Downscaling over Italy using EQM: CMIP6 Climate Projections for the 1985–2100 Period

  • G. Fedele,
  • A. Reder,
  • P. Mercogliano

摘要

This study presents SD-EQM_GCMs_IT, a new high-resolution climate projection ensemble dataset over Italy, designed to support climate impact assessments and adaptation strategies. It is derived by statistically downscaling nine CMIP6 General Circulation Models (GCMs) using the Copernicus European Regional ReAnalysis (CERRA) as a training dataset. The Empirical Quantile Mapping (EQM) method ensures a realistic statistical distribution and enhances local climate characterization. The dataset provides daily values at 0.05° resolution from 1985 to 2100 for six Essential Climate Variables (ECVs), including temperature, humidity, wind speed, and precipitation. Two climate scenarios are considered: SSP1-2.6 and SSP3-7.0, for low and high challanges to mitigation and adaptation respectively. This dataset enhances the current climate information available for Italy by bridging the gap between existing CMIP6 global projections and the absence of an ensemble of regional climate models for the same scenarios. By offering high-resolution data, it equips policymakers, industries, and communities with refined climate insights to enhance resilience and adaptation efforts.