horizontal interpolation of ROMS forcing files

[isabelmonteiro]

Hello,

I would like to know what is the horizontal interpolation method that ROMS uses for putting input forcing files in ROMS grid. If I use 3 different resolution forcing files and plot Y-wind stress as a function of longitude for a given latitude and a given time I get a very different profile using the nearest point from the original forcing file or the nearest point from ROMS interpolated svstr from History file.
Thanks

Isabel

[kate]

ROMS uses either bilinear or bicubic interpolation. You set it in mod_scalars.F:

Code: Select all

!  Interpolation scheme.
!
        integer, parameter :: linear = 0        ! linear interpolation
        integer, parameter :: cubic  = 1        ! cubic  interpolation
!
        integer :: InterpFlag = cubic          ! interpolation flag