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arXiv · 2408.04099

In-situ data extraction for pathway analysis in an idealized atmosphere configuration of E3SM

Andrew Steyer·Luca Bertagna·Graham Harper·Jerry Watkins·Irina Tezaur·Diana Bull
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Abstract

We propose an approach for characterizing source-impact pathways, the interactions of a set of variables in space-time due to an external forcing, in climate models using in-situ analyses that circumvent computationally expensive read/write operations. This approach makes use of a lightweight open-source software library we developed known as CLDERA-Tools. We describe how CLDERA-Tools is linked with the U.S. Department of Energy's Energy Exascale Earth System Model (E3SM) in a minimally invasive way for in-situ extraction of quantities of interested and associated statistics. Subsequently, these quantities are used to represent source-impact pathways with time-dependent directed acyclic graphs (DAGs). The utility of CLDERA-Tools is demonstrated by using the data it extracts in-situ to compute a spatially resolved DAG from an idealized configuration of the atmosphere with a parameterized representation of a volcanic eruption known as HSW-V.

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Andrew Steyer, Luca Bertagna, Graham Harper, Jerry Watkins, Irina Tezaur, Diana Bull. 2024-08-07. In-situ data extraction for pathway analysis in an idealized atmosphere configuration of E3SM. https://arxiv.org/abs/2408.04099

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