[CF-metadata] grid cells with a varying number of cell bounds

From: Karl Taylor <taylor13>
Date: Tue, 5 Sep 2017 15:51:46 -0700

HI all,

Consider a grid consisting of both triangular and rectangular grid cells
with n total grid cells. In this case the cell_bounds for longitude
could be dimensioned (n, 4) because there are a maximum of 4 cell vertices.

My question is, for the triangular grid cells do we *require* the 4th
element of the bounds to be set to missing_value? If not, how does
software decide how many vertices each grid cell has?

Also, in H.2.3 examples H.4 and H.5, missing_value is defined for the
time coordinate, time(time). I don't think coordinates are allowed to
include missing values. Is this a "defect" in our document?

thanks in advance,
Karl
Received on Tue Sep 05 2017 - 16:51:46 BST