[CF-metadata] How to build CF-compliant monthly mean diurnal cycles

From: Karl Taylor <taylor13>
Date: Wed, 10 Feb 2016 15:07:34 -0800

Dear Alejandro,

I hope someone else will also check this, but I'm pretty sure you've
done it correctly. I would note that "time: mean within days time: mean
over days" implies in your example that fluxes are 1-hour mean amounts
averaged for each hour of the day over all days in the month. If you
aren't accumulating fluxes over the hour, but instead just sampling a
single time-step, then you should specify "time: point within days time:
mean over days".

regards,
Karl

On 2/10/16 7:56 AM, Bodas-Salcedo, Alejandro wrote:
> Dear CF community,
>
> I am trying to create a dataset that contains monthly mean diurnal cycles of radiative fluxes (i.e. the average day of each month), but I am not sure how to do this in a CF-compliant way. Example 7.10 does this for one month (Section 7.4 on Climatological statistics), so it seems natural to extend this example. Will the following extension of Example 7.10 to two consecutive months be correct?
>
> Thanks for your help.
>
> Regards,
>
> Alejandro
>
>
>
> dimensions:
> time=48;
> nv=2;
> variables:
> float temperature(time,lat,lon);
> temperature:long_name="surface air temperature";
> temperature:cell_methods="time: mean within days time: mean over days";
> temperature:units="K";
> double time(time);
> time:climatology="climatology_bounds";
> time:units="hours since 1997-4-1";
> double climatology_bounds(time,nv);
> data: // time coordinates translated to date/time format
> time="1997-4-1 0:30", "1997-4-1 1:30", ... "1997-4-1 23:30", "1997-5-1 0:30", "1997-5-1 1:30", ... "1997-5-1 23:30";
> climatology_bounds="1997-4-1 0:00", "1997-4-30 1:00",
> "1997-4-1 1:00", "1997-4-30 2:00",
> ...
> "1997-4-1 23:00", "1997-5-1 0:00" ;
> "1997-5-1 0:00", "1997-5-31 1:00",
> "1997-5-1 1:00", "1997-5-31 2:00",
> ...
> "1997-5-1 23:00", "1997-5-31 0:00" ;
>
>
Received on Wed Feb 10 2016 - 16:07:34 GMT