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# PDAFomi_get_interp_coeff_lin1D

This page documents the routine `PDAFomi_get_interp_coeff_lin1D`

of PDAF-OMI.

The routine is called in `init_dim_obs_OBSTYPE of an obseration module to initialize interpolation coefficients in one dimension. It is used if the observation operator performs linear interpolation in 1D.

See the page describing PDAF-OMI observation operators for a general overview. |

The interface is:

SUBROUTINE PDAFomi_get_interp_coeff_lin1D(gcoords, ocoord, icoeff) REAL, INTENT(in) :: gcoords(:) ! Coordinates of grid points (dim=2) REAL, INTENT(in) :: ocoord ! Coordinate of observation REAL, INTENT(inout) :: icoeff(:) ! Interpolation coefficients (dim=2)

**Note:**

- This routine is a simplification of
`PDAFomi_get_interp_coeff`

which computes interpolation coefficients up to three dimensions