Dear mailing list,

The National Climate Information Centre here at the Met Office is looking to 
convert its archive of gridded observations data into NetCDF. I've been looking 
through the CF documentation to try and find suitable standard names for each 
of our variables. I suspect this may be the first of several posts, but I 
thought I'd start with something straightforward (I hope!) which is to propose 
the following new standard name:

number_of_days_with_surface_temperature_below_threshold

The definition would be similar to that for the existing standard name 
'number_of_days_with_air_temperature_below_threshold', the only difference 
being that it would relate to surface temperature rather than air temperature. 
We require this to allow us to store values of the number of days of ground 
frost i.e. the number of days when the grass minimum temperature (= surface 
temperature) dropped below 0 degC. Following the approach for air temperature, 
the threshold would be specified via a coordinate variable called 
'surface_temperature'.

Regards,

Dan



Dan Hollis   Climatologist
Met Office   Hadley Centre   FitzRoy Road   Exeter   Devon   EX1 3PB   United 
Kingdom
Tel: +44 (0)1392 886780   Fax: +44 (0)1392 885681
E-mail: [email protected]   Website: http://www.metoffice.gov.uk
For UK climate and past weather information, visit 
http://www.metoffice.gov.uk/climate


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