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[CF-metadata] ECMWF GRIB code - CF Standard Name Mapping incorrect?

From: Malm Jakob <jakob.malm>
Date: Wed, 2 Feb 2011 09:29:34 +0100

There are differences between the CF standard names on

http://cf-pcmdi.llnl.gov/documents/cf-standard-names/ecmwf-grib-mapping
[CF document]

and

http://www.ecmwf.int/publications/manuals/d/gribapi/param/ [ECMWF
site] (click on the netcdf link for any particular parameter)

E.g. tcwv:

[CF document]:
GRIB code Units ECMWF CF ECMWF description CF
Standard Name
137 m (of water) m Precipitable Water Content
lwe_thickness_of_atmosphere_water_vapour_content

[ECMWF site]
(http://www.ecmwf.int/publications/manuals/d/gribapi/param/detail/format=netcdf/pid=137/):
paramId 137
shortName tcwv
name Total column water vapour
unit kg m**-2
description Vertically integrated water vapour
cfname lwe_thickness_of_atmosphere_water_vapor_content

The most important difference is the units, where the CF document says
'm', and ECMWF says 'kg m**-2' (which is the correct unit for the tcwv
parameter). Does the ECMWF parameter have an incorrect CF name or are
the units in the CF document wrong?

I am also puzzled to see the spelling 'vapour', because I thought that
the American spellings (vapor, color...) were the CF standard.


Jakob Malm
SMHI
Received on Wed Feb 02 2011 - 01:29:34 GMT

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