Dear CF,

After attending the CF Workshop in Reading last month and presenting the uncertainties standard we have come up with a different proposal. There was concern with adding new reserved attributes instead of extending the use of existing attributes. I've updated the proposal in a new Google Doc <https://docs.google.com/document/d/1UR0flhrEE3yw_3dKW8NpCrGymLt9idwFXJBhZ5ngX3Y/edit?usp=sharing>. Please feel free to comment or make suggestions to this new proposal.

If you don't want to read the short six pages here are the highlights:

 * Uncertainties are written as a separate variable
 * Will add three new standard name modifiers: total_uncertainty,
   random_uncertainty, systematic_uncertainty
 * Will deprecate current standard name modifier: standard_error
 * Will add three new descriptors to cell_methods: standard_error,
   confidence_interval, other_than_statistical_analysis (adding more is
   an option)
 * Will link the uncertainty variable to the data variable with
   ancillary_variables (required)
 * Will provide additional information with "references" variable
   attribute (optional)


Thanks,

Ken

On 2018-2-19 13:43, Kenneth Kehoe wrote:
Dear CF,

I have been tasked by my organization to come up with a standard for disseminating uncertainty in netCDF files. CF does not currently have an uncertainty standard and other community attempts have not been adopted by the community. I am proposing a new standard that will hopefully be adopted and integrated into the CF standard. I've attached a PDF of the standard, and here is a link to a Google Doc <https://urldefense.proofpoint.com/v2/url?u=https-3A__docs.google.com_document_d_18WDbacUkflaZEdM8dHJ9Uu6zcMwT29QQVC6Q4FHkj98_edit-23&d=DwMC-g&c=qKdtBuuu6dQK9MsRUVJ2DPXW6oayO8fu4TfEHS8sGNk&r=Vm7o2ZGxPkkqRuPs8nVMVQ&m=bLew9ertCqJT1Q-FQ-lkG9AvIYSPeRTGQXDshxl7SYo&s=wFf8bNNvkdrGks2KIAJY1RI0EcyS3YDWxJxGHTtOz0A&e=> with comment permissions. Please feel free to add comments and suggestions to the Google doc.

Thanks,

Ken
--
Kenneth E. Kehoe
   Research Associate - University of Oklahoma
   Cooperative Institute for Mesoscale Meteorological Studies
   ARM Climate Research Facility - Data Quality Office
   e-mail:[email protected]  | Office: 303-497-4754 | Cell: 405-826-0299


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--
Kenneth E. Kehoe
  Research Associate - University of Oklahoma
  Cooperative Institute for Mesoscale Meteorological Studies
  ARM Climate Research Facility - Data Quality Office
  e-mail: [email protected] | Office: 303-497-4754 | Cell: 405-826-0299

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