CDO

Dear all,

I have found an old script using the command "cdo interpolate". I'm assuming this is an old command because it is not listed in the current cdo manual. It seems to work, either remapping one file onto the same grid as a second file i.e.:

cdo interpolate,$ifile2 $ifile1

Or by remapping onto a regular grid e.g:

cdo interpolate,r180x360

However, I am not sure how the remapping is done (e.g. is it by bilinear interpolation? the same as cdo remapbil?). Does anyone have any information about how this command works, or know anywhere I could look (e.g. old cdo manuals?) or have ideas for how I could figure it out?

Many thanks,

Rachel