[ferret_users] Remapping curvilinear coordinates to rectilinear coordinates

[Szymon Roziewski <szymon.roziewski@xxxxxxxxx>]

Hello there,
I have problem with appropriate remapping from curvilinear coordinates to rectilinear coordinates.
The area which is covered with curvilinear coordinates is bigger than I need in rectilinear coordinates (it's a subset of curvilinear grid).
I would like to raise such a question if ferret can do this transformation automaticly i.e. I needn't to care about the curvilinear grid is about bigger area than rectilinear.
Or I need to tell ferret that fact by some computations and findings.
I attach files:
- wind_2010092103_ICM_aspect.gif - this is wind on curvilinear grid it is a bigger area
- wind_2010092103_ICM_remaped_132x145_and_interpolated.gif - this is wind on rectilinear grid it's a smaller area.

As You can see ferret did transformation but in a way I didn't intend. The Baltic Sea area is a little bit translated to the north and the northern part of sea was cut. The picture should wrap all area of Baltic Sea.
In the picture UM_Significant_Wave_Height_21_September_2010_020000_TMP.gif I marked the area which matches interpolated wind field on Baltic Sea and You can see that it disagrees to significant wave height which occupies properly area. It means that interpolation from curvilinear grid 448x615 to the rectilinear grid 132x145 was done improperly.
I hope I was understood.

Kind regards,
Szymon Roziewski

Attachment: wind_2010092103_ICM_aspect.gif
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Attachment: wind_2010092103_ICM_remaped_132x145_and_interpolated.gif
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Attachment: UM_Significant_Wave_Height_21_September_2010_020000_TMP.gif
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