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UID:submissions.pasc-conference.org_PASC23_sess131_msa131@linklings.com
SUMMARY:Technical Challenges and Solutions in Building a Pre-Exascale Clim
 ate Adaptation Digital Twin
DESCRIPTION:Minisymposium\n\nJenni Kontkanen (CSC - IT Center for Science)
 ; Mario Acosta, Pierre-Antoine Bretonnière, and Miguel Castrillo (Barcelon
 a Supercomputing Center); Paolo Davini (ISAC-CNR); Francisco Doblas-Reyes 
 (Barcelona Supercomputing Center, ICREA); Barbara Früh (DWD); Jost von Har
 denberg (Politecnico di Torino); Thomas Jung (AWI); Heikki Järvinen (Unive
 rsity of Helsinki); Jan Keller (DWD); Daniel Klocke (Max Planck Institute 
 for Meteorology); Outi Sievi-Korte (CSC - IT Center for Science); Sami Nie
 melä (Finnish Meteorological Institute); Bjorn Stevens (Max Planck Institu
 te for Meteorology); Stephan Thober (Helmholtz Centre for Environmental Re
 search); and Pekka Manninen (CSC - IT Center for Science)\n\nDestination E
 arth Climate Change Adaptation Digital Twin (Climate DT) is a new type of 
 climate information system that can be used to guide climate change adapta
 tion efforts. The Climate DT harnesses two Earth-system models (ESMs), ICO
 N and IFS-FESOM/NEMO. The models are adapted to two pre-exascale EuroHPC s
 ystems: LUMI that is in operation in Kajaani, Finland, and Mare Nostrum 5 
 that will be available during 2023 in Barcelona, Spain. The Climate DT int
 roduces the idea of a generic state vector (GSV), which is evolved by the 
 ESMs and streamed to applications. This novel approach enables the ESMs to
  work at an unprecedented scale and thus improves the fidelity of the clim
 ate information as well as its relevance for the users. Use cases from fiv
 e impact sectors, as well as a framework for quality assessment and uncert
 ainty quantification, are implemented within Climate DT as applications th
 at operate on the streamed GSV. This presentation will discuss technical c
 hallenges and corresponding solutions in developing the Climate DT, connec
 ted to adapting the models to the new HPC systems, developing the novel wo
 rkflow, and handling the vast amount of data produced by the models.\n\nDo
 main: Climate, Weather and Earth Sciences\n\nSession Chair: Balthasar Reut
 er (ECMWF)
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