To document the Úa ice-flow modelling software and the OCEAN ICE-specific subglacial freshwater-discharge modelling developments described in Deliverable D3.3.

The UaSource repository is publicly accessible on GitHub. No explicit software license is declared in the repository; reuse is therefore subject to the rights retained by the copyright holder and any terms provided by the software author.

The developments and applications described in OCEAN ICE Deliverable D3.3 were carried out within the OCEAN ICE project (Ocean-Cryosphere Exchanges in Antarctica: Impacts on Climate and the Earth System), funded by the European Union under Horizon Europe Grant Agreement No. 101060452.

Úa is a finite-element ice-flow model developed independently of OCEAN:ICE and used within the project to model Antarctic Ice Sheet dynamics. Within OCEAN ICE D3.3, surface-velocity observations from ITS_LIVE were assimilated to constrain ice-flow parameters and estimate basal sliding, basal stresses and basal meltwater production across the Antarctic Ice Sheet. The work also included the development and application of a new subglacial water-routing algorithm designed to avoid mesh-resolution dependency and the need for a separate depression-filling procedure. The modelling approach and OCEAN ICE-specific developments are documented in Deliverable D3.3.

ISO 19115:2003/19139

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