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Are the coordinates in the "xlong" and "xlat" variables in the WRF input file (wrfinput) representing grid centers or grid edges?


New member
I am working with the WRF model and its input file (wrfinput). I would like to know whether the latitude and longitude information stored in the "xlat" and "xlong" variables represent the coordinates of the grid centers or the grid edges. Can anyone provide some insights or point me to relevant documentation or resources? Thank you in advance.
All variables, except u and v are found in the cell centers (mass points), so this would include xlat and xlong.