I write a surface tracer flux to a netcdf file. If the flux is a constant value (non-zero) the fill and cont plots show nothing. I was hoping that this is just a quirk in Ferret that could be fixed with some other descriptors when I call the fill command. Thanks *_*_*_*_*_*_*_*_*_*_*_*_*_*_*_* Jimmy Booth JISAO, 120B Lisa Li Bldg phone: 206-685-2585