physics</code>: a dictionary that stores process parametrizations used in the ice sheet model (see process parametrizations for more information).</li></ul><h2 id="Model-Construction"><a class="docs-heading-anchor" href="#Model-Construction">Model Construction</a><a id="Model-Construction-1"></a><a class="docs-heading-anchor-permalink" href="#Model-Construction" title="Permalink"></a></h2><p>A <code>Model</code> is constructed using the <code>Model(;&lt;kwargs&gt;)</code> constructor (a function that constr