nrisse/si-emis: Code related to: Assessing the sea ice microwave emissivity up to submillimeter waves from airborne and satellite observations

This release contains the code related to the manuscript "Assessing the sea ice microwave emissivity up to submillimeter waves from airborne and satellite observations" by Risse et al. (2024) submitted to The Cryosphere. This update includes revised figures based on reviewer suggestions and some bug fixes.