[CF-metadata] A user has a set of variables they can't store: advice?

Cathy Smith cathy.smith at noaa.gov
Thu Aug 31 16:23:41 MDT 2017


A user trying to use CF standard names sent me this list of variables 
they were unable to find the names of. Note this is for observations at 
a point. It is to be stored in NASA Ames format and not netCDF. In some 
cases, the units was the issue (e.g. evap rate). In some cases, the data 
was at a specific level (e.g. 10m wind speed) and it wasn't clear how 
'level' would be indicated in the Ames metadata.

The 'level' issue may be part of another one: CF was designed for 
gridded data but from a talk on the web, it is

"Framed as a netCDF standard, but most CF ideas relate to metadata 
design in general, hence can be contained in other formats such as XML"

So, can the CF standard names really apply to point collected data not 
in netCDF? And, can these all be considered as potential variables for 
CF if they don't already exist?

Here is the list.

Bulk buoyancy flux into ocean (W m-2)
Friction velocity that includes gustiness  (m s-1)    [aka ustar]
Wind stress (N m-2)
Temperature scaling parameter  (K)    [aka tstar]
Specific humidity scaling parameter  (g kg-2)    [aka qstar]
Thermal roughness length (m)
Moisture roughness length (m)
Wind stress transfer coefficient at zu  ()    [aka Cd]
Sensible heat transfer coefficient at zu  ()    [aka Ch, Stanton number]
Latent heat transfer coefficient at zu  ()    [aka Ce, Dalton number]
Obukhov length scale L  (m)
Monin-Obukhov stability parameter zu/L  ()
wind_speed at 10 m (m s-1)
air_temperature at 10 m (C)
specific_humidity at 10 m (g kg-1)
relative_humidity at 10 m (%)
Neutral value of wind speed at zu (m s-1)
Neutral value of wind speed at 10 m (m s-1)
Neutral value of drag coefficient at 10 m ()
Neutral value of Stanton number at 10 m ()
Neutral value of Dalton number at 10 m ()
Cool-skin temperature depression (C)
Surface saturation specific humidity (g kg-1)
Latent heat of vaporization (J kg-1)

and maybe
Evaporation rate (mm h-1)


Cathy Smith


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