The Worldwide C3S CORDEX Grand Ensemble A Major Contribution to Assess Regional Climate Change in the IPCC AR6 Atlas

Özet

The collaboration between the Coordinated Regional Climate Downscaling Experiment (CORDEX) and the Earth System Grid Federation (ESGF) provides open access to an unprecedented ensemble of regional climate model (RCM) simulations, across the 14 CORDEX continental-scale domains, with global coverage. These simulations have been used as a new line of evidence to assess regional climate projections in the latest contribution of the Working Group I (WGI) to the IPCC Sixth Assessment Report (AR6), particularly in the regional chapters and the Atlas. Here, we present the work done in the framework of the Copernicus Climate Change Service (C3S) to assemble a consistent worldwide CORDEX grand ensemble, aligned with the deadlines and activities of IPCC AR6. This work addressed the uneven and heterogeneous availability of CORDEX ESGF data by supporting publication in CORDEX domains with few archived simulations and performing quality control. It also addressed the lack of comprehensive documentation by compiling information from all contributing regional models, allowing for an informed use of data. In addition to presenting the worldwide CORDEX dataset, we assess here its consistency for precipitation and temperature by comparing climate change signals in regions with overlapping CORDEX domains, obtaining overall coincident regional climate change signals. The C3S CORDEX dataset has been used for the assessment of regional climate change in the IPCC AR6 (and for the interactive Atlas) and is available through the Copernicus Climate Data Store (CDS).

Açıklama

Anahtar Kelimeler

Climate change, Climate services, Data quality control, Downscaling, Ensembles, Regional models, Climate models, Earth (planet), Earth system models, Quality control, Climate service, Data quality control, Down-scaling, Earth system grids, Ensemble, OpenAccess, Regional climate, Regional climate changes, Regional climate model simulation, Regional modelling, Model intercomparison project, Downscaling experiment cordex, Simulations, Precipitation, Scenarios

Kaynak

Bulletin of the American Meteorological Society

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

103

Sayı

12

Künye

Diez-Sierra, J., Iturbide, M., Gutierrez, J. M. ... & Önol, B. (2022). The Worldwide C3S CORDEX Grand Ensemble A Major Contribution to Assess Regional Climate Change in the IPCC AR6 Atlas. Bulletin of the American Meteorological Society, 103-(12), E2804-E2826. doi:10.1175/BAMS-D-22-0111.1