Strange coordinates of mass points of the parent grid

Discuss the nesting capability within the model itself and any problems you might have run into.

Strange coordinates of mass points of the parent grid

Postby dvwrf » Wed Nov 22, 2017 5:47 am

Hello,

I am running ARW with a coarse grid and 1 nested grid. The grid ratio is 5. I extracted the coordinates of the mass points from the output files (variables XLONG and XLAT). The following image shows the position of the mass points of the 2 grids : In blue the points of the parent grid, in red the points of the child grid. I notice a strange offset of most points of the parent grid which are contained in the child grid.
Does anyone have an explanation for this observation?

Thank you very much.

Image
dvwrf
 
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