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[CF-metadata] How to build CF-compliant seasonal climatology when data begins within a season

From: Karl Taylor <taylor13>
Date: Thu, 11 Feb 2016 10:25:55 -0800

Hi Jim,

I considered that, but doesn't that indicate to someone who isn't
already aware of the actual time-period covered that data was used
starting 2000-12-01 and ending in 2010-03-01, even though data from the
months 2000-01 and 2000-02 and 2010-12 also were included in computing
the climatologies?

best regards,
Karl

On 2/11/16 10:15 AM, Jim Biard wrote:
> Karl,
>
> I think you should be able to handle this in the bounds variable. If
> you write the first entry as "2000-12-1", "2010-03-01", doesn't that
> describe things correctly?
>
> Grace and peace,
>
> Jim
>
> On 2/10/16 6:37 PM, Karl Taylor wrote:
>> Dear CF community,
>>
>> In representing the seasonal climatology based on data available for
>> the period January 1, 2000 through December 31 2010, what would be
>> the correct climatology_bounds?
>>
>> climatology_bounds = "1999-12-1", "2011-3-1",
>> "2000-3-1", "2010-6-1",
>> "2000-6-1", "2010-9-1",
>> "2000-9-1", "2010-12-1" ????
>>
>> I would note that this seems to capture the idea that we are
>> reporting seasonal means, but it also seems to indicate that this is
>> based in part on data from Dec. 1999 and Jan.-Feb. 2011, when it
>> isn't. Is this the best I can do? [Of course the convention can
>> never tell us if data are complete in forming a climatology. If 1
>> year were missing, this would not affect the attributes.]
>>
>> I suppose the in the cell_methods attribute ("time: mean over days
>> time: mean over years" I could add non-standardized information (as
>> permitted by CF), for example: "time: mean over days time: mean
>> over years (with data from the period 2000-1-1 to 2011-1-1)"
>>
>> thanks for any suggestions,
>> Karl
>>
>>
>>
>> _______________________________________________
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>> CF-metadata at cgd.ucar.edu
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>
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Received on Thu Feb 11 2016 - 11:25:55 GMT

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