Thanks, Jonathan.
On 2/21/2012 11:18 AM, Jonathan Gregory wrote:
Dear John
However, im not sure what this sentence in 7.4 means: "When
considering intervals within days, if the earlier time of day is
equal to the later time of day, then the method is applied to a full
24 hour day."
It doesn't matter in the instantaneous case, but it does matter for statistics
that apply to the whole cell, like means and accumulations, such as
precipitation:cell_methods="time: sum within days time: mean over days";
If the sums were for 24-hour intervals, the bounds might be
climatology_bounds="2008-08-01T00:00Z", "2008-09-01T00:00Z",
Here, the time of day is the same (00:00Z) at both ends. That means it
applies to full days. That's what the bit quoted is talking about. However,
this doesn't arise in your six-hourly case.
Best wishes
Jonathan
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