Variational inverse modeling within the Community Inversion Framework v1.1 to assimilate &amp;lt;i&amp;gt;δ&amp;lt;/i&amp;gt;&amp;lt;sup&amp;gt;13&amp;lt;/sup&amp;gt;C(CH&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;) and CH&amp;lt;sub&amp;gt;4&amp;lt;/sub&amp;gt;: a case study with model LMDz-SACS
Geoscientific model development