Model setups

The public Experiment and Simulation interfaces run every built-in setup with the same initialization, forcing, timekeeping, input and output. Forcing means prescribed inputs such as wind or ocean heat. See Define, run and resume a sea-ice experiment and Prescribed ocean geometry and custom fields for complete public workflows. Setup factories create the preset fields, and command-line drivers follow the same run process. The central Command line tools lists, copies and runs editable preset definitions.

The island setup combines dynamics (ice motion) and growth (freezing and melting) with prescribed ocean masks and fields. Masks identify ocean and land cells. It requires no geographic datasets or external ocean model. The separate dynamics, growth and parallel dynamics cases use the same initialization and physics calculations. Each page describes its controls and usage. The three separate cases derive from veris_minimum_working_example branch jax_halo_exchange (reference commit 2571998f8feb6a5943b214361c122ca78b44c3a8).

For installation and a first run, see Getting started. Use --help for command-line options. Importing a setup does not run a simulation.

• Island
• Dynamics only
• Growth only
• Parallel dynamics

New experiments use the shared Add and reproduce an experiment, either with prescribed ocean geometry or a registered factory that creates fields for each grid region. Python and CLI launch the same public runner. Exports of the user’s inputs and of the values after defaults are applied keep the setup identity and the order in which overrides take priority.