Hi all,
With regard to the CF Checker not complaining about the global attribute
"grid_mapping"...
From my understanding of the Conventions there are 7 standard global
attributes:
'Conventions','title','history','institution','source','reference','comment'
However, there is nothing stopping non-standard global attributes being
defined.
"2.6: This standard describes many attributes (some mandatory, others
optional), but
a file may also contain non-standard attributes. Such attributes do not
represent a
violation of this standard."
Please correct me if I'm wrong!
I guess I could get the checker to compare any non-standard global
attribute with
the list of defined attributes in Appendix A and if it finds a match
issue an informational
statement.
Regards,
Rosalyn.
[email protected] wrote:
Hello,
I have a netcdf file in which I have my variable
(tim,lat,lon), then the vector of regular lat and a vector for
regular lon.
My grid mapping is Equidistant Cylindrical. SO in the nc I set as
GLOBAL ATTRIBUTE
----------------------------------
attname=Conventions
value=CF-1.4
attname=grid_mapping
value=Cylindrical
------------------------------------
A collegue of mine told me that for CF 1.4 the grid_mapping is no more
a global attribute but it is a variable attribute named as
"grid_mapping_name".
BUT I run the CF checker for 1.4 on my file and everything is ok!!!!
first question:
Is it still correct /with cf 1.4) to set a global attribute as
"grid_mapping"?
or must I put the same information as variable attribute? in this
case, how?
second question:
are "Equidistant Cylindrical" and "Cylindrical" still valid values for
grid_mapping (or grid_mapping name)?
thanks in advanced
Cristina
-------------------------------------------------------------------
Cristina Tronconi
Istituto di Scienze dell'Atmosfera e del Clima - sezione di Roma
Consiglio Nazionale delle Ricerche
Via Fosso del Cavaliere 100
00133 Roma, Italy
Tel: +39 06 49934342
cell: '39 349 1242954
Fax: +39 06 20660291
e-mail: [email protected]
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[Allegato tolto: Tipo originale dell'allegato: "application/octet-stream", nome:
"20100523_di-OC_CNR-L3-CHL-MedOC3_a_1Km-MED-NRT-V01.nc"]
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--
------------------------------------------------------------------------
Rosalyn Hatcher
NCAS Computational Modelling Services
Dept. of Meteorology, University of Reading,
Earley Gate, Reading. RG6 6BB
Email: [email protected] Tel: +44 (0) 118 378 6016
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