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DTSTART;TZID=America/Chicago:20251118T153000
DTEND;TZID=America/Chicago:20251118T155200
UID:submissions.supercomputing.org_SC25_sess590_gbv104@linklings.com
SUMMARY:Destination Earth: The Climate Change Adaptation Digital Twin
DESCRIPTION:Ioan Hadade (European Centre for Medium-Range Weather Forecast
 s (ECMWF)); Daniel Klocke (Max Planck Institute for Meteorology); Jussi En
 kovaara and Tuomas Lunttila (CSC - IT Center for Science); Thomas Rackow (
 European Centre for Medium-Range Weather Forecasts (ECMWF)); Jan Frederik 
 Engels and Claudia Frauen (Deutsche Klimarechenzentrum (DKRZ)); René Redle
 r (Max Planck Institute for Meteorology); Jenni Kontkanen (CSC - IT Center
  for Science); Thomas Jung and Dmitry Sein (Alfred Wegener Institute); Iri
 na Sandu, Balthasar Reuter, Nils Wedi, and Sebastian Milinski (European Ce
 ntre for Medium-Range Weather Forecasts (ECMWF)); Francisco Doblas Reyes, 
 Miguel Castrillo, Mario Acosta, and Sergi Girona (Barcelona Supercomputing
  Center); and Pekka Manninen (CSC - IT Center for Science)\n\nWe present t
 he first digital twin framework that operationalizes the production of mul
 ti-decadal, global climate projections at kilometer-scale resolution, deve
 loped within the European Union’s Destination Earth initiative. Using thre
 e coupled Earth system models and selected impact-sector applications, we 
 have built end-to-end workflows for both regular and on-demand climate pro
 jections on two EuroHPC supercomputers, LUMI and MareNostrum5. These workf
 lows produced the first-ever multi-decadal simulations at 5 km resolution 
 across all major Earth system components, using the same output parameters
  and grid, and achieving a production throughput of 0.6 simulated years pe
 r day and a climate data portfolio of 6.6 petabytes. We demonstrate the sc
 alability of two of these Earth system models across both CPU- and GPU-bas
 ed systems at global resolutions up to 1 km, across atmosphere, ocean, lan
 d, and sea-ice, and report record-breaking full-machine performance on LUM
 I and MareNostrum5 of up to 97 simulated days per day at 1 km resolution.\
 n\nTag: Applications, Gordon Bell Climate Finalist\n\nRecording: Livestrea
 med, Recorded\n\nRegistration Category: Technical Program Reg Pass\n\nSess
 ion Chair: Jack Dongarra (University of Tennessee, Knoxville; Oak Ridge Na
 tional Laboratory (ORNL))\n\n
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