Model grid interpolation: different forecast values displayed at different map scales for same position



  • Here below screenshots with 4 different Rain Accumulation values displayed for the same selected position at 4 different map scales (easily reproducible). Here, the position of the selected point (lat/lon) has 1 arcsecond resolution, i.e. about 30 meters on Earth surface.

    I think the displayed value is not interpolated on same original model grid, but on successive rendered grids already interpolated themselves for each map scale; this could explain such a big difference between displayed values.

    The result is disturbing from user pov., who would expect getting same forecast value (interpolated of course), independently from currently selected map scale...

    titi.jpg



  • @vsinceac thank you for bringing this to our attention, we will look into that!


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