Climate simulations clearly belong to the most data intensive scientific disciplines. The output generated by current models is increasing in size, as well as in complexity. The increase in complexity is due to a maturing of models that are able to better describe the intricacies of the climate system, while the gain in size is a direct result of finer spatial and temporal resolutions that are required to capture those small scale processes. DYAMOND++ is a project using the globally coupled Earth system model ICON-ESM that permits global simulations at a resolution of 5 km to study a wide range of Earth’s weather and climate phenomena. The visualization of these large data sets is not trivial, and large, high resolution display surfaces, such as 4k screens and planetarium domes, are very suitable to convey the complex information within.

This short film describes the development of DYAMOND++, from low resolution climate models in the past, to high resolution regional setups to study clouds and cloud building processes in greater detail. We interviewed some of the scientific minds behind the DYAMOND++ project, and show visualization examples of their work. The visualizations are produced using ParaView and Intel’s OSPRay raytracing backend.

This 180-degrees film was intended to be shown within the joint Eurographics/EuroVis2020 Conference in Norrköping, Sweden as part of the "Wisdome Contest 2020". However, due to the corona crisis, a presentation of the video in the Visualization Center C, as originally planned for May 25, 2020, had to be cancelled.
[ Ссылка ]

The film and in particular the visualizations have been mainly produced by Niklas Röber (DKRZ) - supported by Michael Böttinger, Florian Ziemen, Monika Esch, Cathy Hohenegger, Rene Redler, Bjorn Stevens, Thorsten Mauritsen, Michael Migliore, Carson Brownlee, Johannes Günter, Greg Johnson, and Jim Jeffers.

We thank the EU and in particular the EU-funded Centre of Excellence in Simulation of Weather and Climate in Europe (ESiWACE2, [ Ссылка ]) for financial support. DYAMOND++ is at the heart of ESiWACE2, and the simulations shown were performed and visualized as part of ESiWACE2. The aim of ESiWACE2 is to enable climate projections with storm-resolving setups such as DYAMOND++, allowing for a step change in the projection of Earth's future climate and future changes in extreme events such as heat waves and tropical cyclones. ESiWACE2 has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 823988.

Further special thanks go to the Helmholtz Center Geesthacht, the INTEL OSPRay Team, and Kitware SAS.

DKRZ 27.04.2020

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