INTERPF Tutorial : Trouble Shooting

On machines like Linux, it may not like reading a namelist with comments in it. In this case, edit the namelist.input file and remove all comments after '!'.

To generate a single boundary condition file, you must have at least two time periods, so that a lateral boundary tendency may be computed. Even if you are not going to run a long forecast, it is recommended that you provide a full day for the lower boundary condition file, as this file contains daily mean values.

When INTERPF runs into an interpolation error that it did not expect (i.e., forced to do an extrapolation when none should be required), INTERPF will stop and print out the offending (I,J,K) and pressure values. If this is not simply a fix by amending the provided sigma or pressure surfaces, it is usually a bit more tricky and implies that the analysis data is possibly in error.