[CF-metadata] standards for probabilities

2011-11-15 Thread Vegard Bønes
Hi! I am trying to create a document containing various probability values for weather forecasts. But I do have some problems finding out how to express what I want to say using the cf metadata standard. I want to express such things as 25th percentile precipitation amount (based on ensemble

Re: [CF-metadata] standards for probabilities

2011-11-15 Thread Jonathan Gregory
Dear Vegard I want to express such things as 25th percentile precipitation amount (based on ensemble data), and probability that air temperature will be within 2.5 degrees of the forecast. How should I do this? You are right, this case has not yet been dealt with, although the guidelines

[CF-metadata] Burned area standard names

2011-11-15 Thread alison.pamment
Dear All, I have received an enquiry from Kevin Tansey regarding these standard names that were proposed and discussed in July under a number of different mailing list threads: 'Request for new standard name' (http://mailman.cgd.ucar.edu/pipermail/cf-metadata/2011/022117.html ), 'More

Re: [CF-metadata] standards for probabilities

2011-11-15 Thread Vegard Bønes
Thank you, Jonathan! :) So, a bit more concrete, this is option 1: float rain_25(time, y, x); rain_25:standard_name = precipitation_amount; rain_25:cell_methods = realization: percentile(25); The only problem I see with this is that in the resulting cdm realization is not used anywhere,

Re: [CF-metadata] standards for probabilities

2011-11-15 Thread Vegard Bønes
Dear Roy, Can you be a bit more concrete about why you prefer the second alternative? -- Vegard - Original Message - Fra: Roy K. Lowry r...@bodc.ac.uk Til: Jonathan Gregory j.m.greg...@reading.ac.uk, Vegard B??nes vegard.bo...@met.no Kopi: cf-metadata@cgd.ucar.edu Sendt: 15.

Re: [CF-metadata] standards for probabilities

2011-11-15 Thread Lowry, Roy K.
Hello Vergand, One of my jobs is running a parameter vocabulary that currently has over 27,000 entries. Much of its bulk is due to the assignment of multiple parameter names for each step in a numeric sequence - such as radiation wavelengths or sediment grain-size expressed as percentiles.

Re: [CF-metadata] standards for probabilities

2011-11-15 Thread John Caron
Hi Vegard: I see some of these kinds of things from NCEP, encoded in GRIB, and Im still trying to understand what they are. So, some questions from a non-modeler: On 11/15/2011 2:10 AM, Vegard Bønes wrote: Hi! I am trying to create a document containing various probability values for

Re: [CF-metadata] standards for probabilities

2011-11-15 Thread Evan Manning
Most of the discussion so far has centered on (1). But this raises some other issues: 2) probability that air temperature will be within 2.5 degrees of the forecast This is clearly trying to get at something akin to what we do with the standard_error standard name modifier and the

Re: [CF-metadata] standards for probabilities

2011-11-15 Thread Vegard Bønes
Hi John, All the assumptions you state are correct. Regarding the usage of the data, there exists a specialized application that uses this data. The problem is that others are interested in the same data, and I have no control over how they will use it. Because of that, I want the generated