File Formats Demystified
The CEDA archives cover a wide range of file format. The following documentation covers the main formats within the CEDA archives with links to tools supporting the format. For information about which format is used for a dataset please consult the format section of the dataset on it's catalogue record in CEDA's data catalogue.
|Format||Type||File endings||Commonly used for|
|BADC-CSV||text||.csv||simple "1-D" type of data, e.g. instrument time series data|
|NASA Ames||text||.na||aircraft and older instrument data (older data may have an older filenaming convetion)|
|JCAMP-DX||text||.dx, .jdx||only suitable for spectra from spectroscopy experiments|
|NetCDF||binary||.nc||model data and observational data with more than 1 dimension (e.g. time-height data)|
|PP||binary||.pp||Met Office model output|
|GRIB||binary||.grb||ECMWF model output|
||.tar||balling together a number of files as a coherent set of files to be downloaded together|
| gzip, bzip, zip
||compression||.gz, .bz, .zip||to reduce the volume required for the file to aid transfer and storage|
Other Text Formats (ASCII)
Other formats are also present in the archive, mainly in human-readable form. Please see this article concerning such "ASCII" formats.