relating to the ice sheet.</li><li>Fields (<code>Fields</code>): stores information on the current state of the model.</li></ul><p>A <code>Model</code> also owns a <code>dict</code> named <code>extra_physics</code>, which contains information on parametrizations of physical processes used by the model. See the Parametrizations tab on the left for more information.</p><ul><li>Supplementary physics: this describes various other models that can be coupled to WAVI.jl. At present, this is restricted to melt rate