[Esip-documentation] how to describe flag_values, flag_meanings in netCDF
Bob Simons - NOAA Federal via Esip-documentation
esip-documentation at lists.esipfed.org
Fri May 23 13:32:45 EDT 2014
On 2014-05-23 10:26 AM, Armstrong, Edward M (398M) wrote:
> Looks good to me.
>
> The flag_values is of the same “type” as the variables so you often
> see (if this were a byte array)
Assuming the flag variable uses data type = bytes,
flag_values needs to be an actual byte array, not just a String that
looks like it.
I don't know what library/system you are working with, so I'm not sure
how you will specify that.
>
>
>> <attribute name="flag_values" value="0b, 1b, 2b”/>
>
> On May 23, 2014, at 10:18 AM, Anna Milan - NOAA Federal via
> Esip-documentation <esip-documentation at lists.esipfed.org
> <mailto:esip-documentation at lists.esipfed.org>> wrote:
>
>> Update - added commas b/t flag_values
>>
>> <attribute name="flag_values" value="0, 1, 2"/>
>> <attribute name="flag_meanings"
>> value="One_or_more_measurements_are_backfilled_from_the_spacecraft_recorder
>> Packet_time_is_in_the_future Packet_time_is_older_than_the_threshold"/>
>>
>>
>> Anna
>> *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
>> Anna.Milan at noaa.gov <mailto:Anna.Milan at noaa.gov>, 303-497-5099
>> NOAA/NESDIS/NGDC
>>
>> http://www.ngdc.noaa.gov/metadata/emma
>> *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
>>
>>
>> On Fri, May 23, 2014 at 11:17 AM, Anna Milan - NOAA Federal
>> <anna.milan at noaa.gov <mailto:anna.milan at noaa.gov>> wrote:
>>
>> Ok.
>> Thanks for all of your feedback! Does this look more compliant?
>>
>> <attribute name="flag_values" value="0 1 2"/>
>> <attribute name="flag_meanings"
>> value="One_or_more_measurements_are_backfilled_from_the_spacecraft_recorder
>> Packet_time_is_in_the_future
>> Packet_time_is_older_than_the_threshold"/>
>>
>> Anna
>> *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
>> Anna.Milan at noaa.gov <mailto:Anna.Milan at noaa.gov>, 303-497-5099
>> <tel:303-497-5099>
>> NOAA/NESDIS/NGDC
>>
>> http://www.ngdc.noaa.gov/metadata/emma
>> *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
>>
>>
>> On Fri, May 23, 2014 at 11:09 AM, Bob Simons - NOAA Federal via
>> Esip-documentation <esip-documentation at lists.esipfed.org
>> <mailto:esip-documentation at lists.esipfed.org>> wrote:
>>
>>
>> On 2014-05-23 9:45 AM, Anna Milan - NOAA Federal via
>> Esip-documentation wrote:
>>> Howdy All,
>>> Is this the most appropriate way to describe flag_values,
>>> flag_meanings?
>>>
>>> <attribute name="flag_values" value="0, 1, 2, 3, 4, 5, 6, 7"/>
>>> <attribute name="flag_meanings" value="One or more
>>> measurements are back filled from the spacecraft recorder,
>>> Packet time is in the future, Packet time is older than the
>>> threshold"/>
>>
>> Not exactly.
>> The flag_values (and the flag variable) are usually an array
>> of bytes, not a comma separated string.
>> The flag_meanings need to be something like
>> "One_or_more_measurements_are_back_filled_from_the_spacecraft_recorder
>> Packet_time_is_in_the_future
>> Packet_time_is_older_than_the_threshold".
>> The number of flag_values must equal the number of flag_meanings.
>>
>> Those are terms from the CF standard. See
>> http://cfconventions.org/1.6.html#flags for details.
>>
>> It might be better to direct future questions about them to
>> the CF mailing list.
>>
>>> Thanks in advance....
>>> Anna
>>> *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
>>> Anna.Milan at noaa.gov <mailto:Anna.Milan at noaa.gov>,
>>> 303-497-5099 <tel:303-497-5099>
>>> NOAA/NESDIS/NGDC
>>>
>>> http://www.ngdc.noaa.gov/metadata/emma
>>> *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~*
>>>
>>>
>>> _______________________________________________
>>> Esip-documentation mailing list
>>> Esip-documentation at lists.esipfed.org <mailto:Esip-documentation at lists.esipfed.org>
>>> http://www.lists.esipfed.org/mailman/listinfo/esip-documentation
>>
>> --
>> Sincerely,
>>
>> Bob Simons
>> IT Specialist
>> Environmental Research Division
>> NOAA Southwest Fisheries Science Center
>> 1352 Lighthouse Ave
>> Pacific Grove, CA 93950-2079
>> Phone: (831)658-3205 <tel:%28831%29658-3205>
>> Fax: (831)648-8440 <tel:%28831%29648-8440>
>> Email: bob.simons at noaa.gov <mailto:bob.simons at noaa.gov>
>>
>> The contents of this message are mine personally and
>> do not necessarily reflect any position of the
>> Government or the National Oceanic and Atmospheric
>> Administration.
>> <>< <>< <>< <>< <>< <>< <>< <>< <>< <><
>>
>>
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>>
>>
>>
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>
> -ed
>
> Ed Armstrong
> JPL Physical Oceanography DAAC
> 818 519-7607
>
>
>
--
Sincerely,
Bob Simons
IT Specialist
Environmental Research Division
NOAA Southwest Fisheries Science Center
1352 Lighthouse Ave
Pacific Grove, CA 93950-2079
Phone: (831)658-3205
Fax: (831)648-8440
Email: bob.simons at noaa.gov
The contents of this message are mine personally and
do not necessarily reflect any position of the
Government or the National Oceanic and Atmospheric
Administration.
<>< <>< <>< <>< <>< <>< <>< <>< <>< <><
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