NETCDF.CDF: Difference between revisions
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imported>Lang Guenther m (recommendation to use CF metadata and standard name standars) |
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|name_de=NETCDF.CDF | |name_de=NETCDF.CDF | ||
|filetype=netcdf.cdf | |filetype=netcdf.cdf | ||
|version= | |version=August 2010 | ||
|version_descr= | |version_descr=August 2010 | ||
|significance=Universal (open source) file format for measured and/or model data. Data (variables) can be either scalar variables as well as one- or multi-dimensional arrays. The format allows effective storage for variables of different dimension, size and type. Attributes can be used to attach additional informations to the whole file as well as to individual variables. | |significance=Universal (open source) file format for measured and/or model data. Data (variables) can be either scalar variables as well as one- or multi-dimensional arrays. The format allows effective storage for variables of different dimension, size and type. Attributes can be used to attach additional informations to the whole file as well as to individual variables. | ||
Further informations can be found under example-file/documents below. | Further informations can be found under example-file/documents below. | ||
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## '''attributes related to variables''' ('''long_name, units''' etc.), and | ## '''attributes related to variables''' ('''long_name, units''' etc.), and | ||
## '''global attributes''' ('''title, history''' etc.). | ## '''global attributes''' ('''title, history''' etc.). | ||
#:Remark: the names | #:Remark: the names of attributes as well as standard variable names should be chosen according to the following given conventions: | ||
#:* [http://cf-pcmdi.llnl.gov/ ''NetCDF Climate and Forecast (CF) Metadata Convention''], and | |||
#:* [http://cf-pcmdi.llnl.gov/documents/cf-standard-names/standard-name-table/15/cf-standard-name-table.html ''CF Standard Name Table'']. | |||
# '''data''' for all variables stored in the file: | # '''data''' for all variables stored in the file: | ||
## (optional) '''coordinate-variable''' data, | ## (optional) '''coordinate-variable''' data, | ||
## (optional) data for ordinary''' variables''', for which only one data record is stored in the file, and finally | ## (optional) data for ordinary''' variables''', for which only one data record is stored in the file, and finally | ||
## (optional) data for '''record-variables''' (which have one unlimited dimension, e.g.''' time'''), which can be stored several times. | ## (optional) data for '''record-variables''' (which have one unlimited dimension, e.g.''' time'''), which can be stored several times. | ||
|nutzerprogramme=[[BATCHPLOT]], [[DATACONVERT]], [[GETDATA]], [[IO_VOLUME]], [[ | |nutzerprogramme=[[BATCHPLOT]], [[DATACONVERT]], [[GETDATA]], [[IO_VOLUME]], [[TELEMAC-2D]] [SediMorph], [[UNK]], [[UNS]], [[UNTRIM ]] [SediMorph, k-Modell] | ||
|language=C with interfaces for FORTRAN77/90 | |language=C with interfaces for FORTRAN77/90 | ||
|fileform=UNFORMATTED | |fileform=UNFORMATTED | ||
Revision as of 07:48, 13 August 2010
Basic Information
File-Type
netcdf.cdf
File-Form
UNFORMATTED
Version
August 2010
Description-Date
August 2010
Significance of the File
Universal (open source) file format for measured and/or model data. Data (variables) can be either scalar variables as well as one- or multi-dimensional arrays. The format allows effective storage for variables of different dimension, size and type. Attributes can be used to attach additional informations to the whole file as well as to individual variables. Further informations can be found under example-file/documents below.
File-Contents (in Catchwords)
- header with metadata:
- list of dimensions (name and length),
- list of variables (name, type and dimension(s)) for which data are stored in the file,
- attributes related to variables (long_name, units etc.), and
- global attributes (title, history etc.).
- Remark: the names of attributes as well as standard variable names should be chosen according to the following given conventions:
- data for all variables stored in the file:
- (optional) coordinate-variable data,
- (optional) data for ordinary variables, for which only one data record is stored in the file, and finally
- (optional) data for record-variables (which have one unlimited dimension, e.g. time), which can be stored several times.
Programs using this Type of File
BATCHPLOT, DATACONVERT, GETDATA, IO_VOLUME, TELEMAC-2D [SediMorph], UNK, UNS, UNTRIM [SediMorph, k-Modell]
Example-File
- general informations can be found on the NetCDF-Homepage as well as in several NetCDF-documents related to the C, FORTRAN 77 and FORTRAN 90 programming interfaces;
- io_dataset_ui (User-Interface), BAW-DH's User-Interface for different file formats;
- names for dimensions and variables should be chosen according to various conventions. A detailed description of the names actually used at BAW-DH can be found in
- base module dimension (mod_b_dim.f90) and
- base module attribute (mod_b_att.f90).
back to: File Descriptions