# emcsfc_snow2mdl # Introduction The emcsfc_snow2mdl program (driver.F90) blends National Ice Center snow cover and Air Force snow depth data to create a global depth analysis used to update the GFS snow field once per day. This document is part of the UFS_UTILS documentation. The emcsfc_snow2mdl program is part of the [UFS_UTILS](https://github.com/ufs-community/UFS_UTILS) project.