userdef-weights

To come back to the upper stage

MONOPROCESSOR INTERPOLATIONS WITH PRE-CALCULATED WEIGHTS WITH OASIS3

Results of the bilinear, bicubic and conservative interpolations for different couple of grids of real models.

The results are presented in the table below. For each couple of grids, different interpolations are tested.
The interpolated field correponds to the analytical function f1 :

For each interpolation, the source field, the target field and the error field are presented. The points at -3 correspond to the masked points.
The points at -1 correspond to points in the target field that do not receive any value, the target field beeing initialized at -1.
The blank values that can be visible in some target fields are points at PSMILe_undef=-280177 (no extra-search available for conservative
interpolations).

The results were obtained on a PC Linux for the low resolution and on Corail (CERFACS, HP ADM Cluster) for the high resolution

RESOLUTIONS : ORCA2 = 182x149x1 ; ARPEGE RED (BT42) = 6232x1 ; ORCA025 = 1442x1021x1 ; ARPEGE RED (T359) = 181724x1

Interpolations Couples of Grids	BILINEAR INTERPOLATION 2D	BICUBIC INTERPOLATION 2D bicubic = sixteen	BICUBIC INTERPOLATION 2D bicubic = gradient	CONSERVATIVE INTERPOLATION 2D
ORCA2 T / ARPEGE RED (= BT42) (M-F)	f1 diff oasis4/oasis3			f1 diff oasis4/oasis3
ARPEGE RED (= BT42)/ ORCA2 T (M-F)	f1 diff oasis4/oasis3			f1 diff oasis4/oasis3
ORCA025 T / ARPEGERED (=T359) (MF)	f1 diff oasis4/oasis3			f1 diff oasis4/oasis3
ARPEGERED (=T359) / ORCA025T (MF)	f1 diff oasis4/oasis3			f1 diff oasis4/oasis3