FPost is a tool for postprocessing the output from the Finite Element Sea Ice-Ocean Model (FESOM). It performs different diagnostics with FESOM, such as computing transports, vorticity etc. on an native grid and interpolates them onto a desired regular mesh. FESOM output compatible with v1.4 is supported. The source code of the model available from the AWI based svn repository. One have to register at AWIForge system and send request to join FPost project. FPost source code.