Dear Jonathan,

thank you for your answer. I hope this is our break through.

> Yes, I think this would be OK, except that I would prefer (as in my last 
> email)
> that we indicate the "variable" explicitly i.e.
>   
>>   n1:standard_name="number_of_days_with_air_temperature_below_threshold";
>>     
> I realise that air_temperature is also a coordinate variable, but I feel that
> it we should include it in the standard name as well. For a probability
> distribution or a pdf, we would name it in the standard name e.g.
> probability_density_function_of_air_temperature. It would be essential to
> include it for a pdf, in fact, because the units depend on it (K-1).
>   
I would prefer my proposal, but I think yours is OK.

At this point we would have these new standard names for the cf list:

number_of_days_with_air_temperature_below_threshold
****************************************************

examples:
frost_days min<0 degC = fd (IPCC AR4 and AR5)
ice days max<0 degC
frost days where no snow

number_of_days_with_air_temperature_above_threshold
****************************************************

examples:
summer days max>25 degC
tropical nights min>20 degC

number_of_days_with_lwe_thickness_of_precipitation_amount_above_threshold
*************************************************************************

examples:
heavy precipitation >10 mm = r10 (IPCC AR4 and AR5)
very heavy precipitation >20 mm
wet days > 1mm

number_of_days_with_wind_speed_above_threshold
****************************************************

examples:
strong breeze days max > 10,5 m/s
strong gale days max > 20,5 m/s
hurricane days max > 32,5 m/s

This was the first step. As soon as possible I try to make the next proposal
for the other statistic parameters.

Best regards
Heinke

> Best wishes
>
> Jonathan
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>   

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