ACCESS-NRI and ice sheet modelling for the Australian community
Michael Tetley
The ACCESS-NRI Ice Sheet Modelling (ISM) team are dedicated to supporting the Australian cryospheric science community through advancing the integration of the Ice-sheet and Sea-level System Model (ISSM) into the ACCESS climate model suite. Working closely with project partners, a key ISM team objective is the development of pyISSM; a flexible, open-source Python API to streamline ISSM workflows—enabling users to parameterise, build, execute, visualise, and post-process ISSM models. The API is designed to improve ISSM accessibility and interoperability across the cryosphere modelling community. Building on this, pyISSM also provides a robust framework to standardise ISSM model data requirements and outputs to natively align with international protocols including ISMIP6. Complementing this is the creation of a scalable “Cryosphere Data Pool”—an open-source, HPC-based framework for managing and accessing cryosphere scientific datasets. This infrastructure supports community sharing, data discovery, ingestion, and analysis. Coupled with these is the ongoing development of open-access Australian HPC-optimised ISSM configurations to support community model accessibility, reproducibility, and collaboration. Looking ahead, efforts are underway in collaboration with Australian project partners to numerically couple ISSM with ACCESS-OM3 (ocean) and ACCESS-AM3 (atmosphere) models using the NUOPC coupler, with the goal of full integration into ACCESS-ESM3.
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