This session will be used to complete a Gap Analysis of common vocabularies that can be crosswalked. There are numerous groups working on semantic harmonization, such as the alignment of SWEET/ENVO vocabularies. It would be beneficial to see what the most common vocabularies are, and how they are being used in polar settings, and prioritize which would be useful to align next. This can be used to ensure inclusion of indigenous semantic resources, or outline a plan for how to include them moving forward.