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Global climate model data format information
NetCDF/CF format for AR5The Network Common Data Format (NetCDF) has become a standard in Earth System Sciences together with the Climate and Forecast (CF) standard naming convention. A collection of software packages for NetCDF data analyses is available at unidata. WDCC at DKRZ recommends and has experiences with the following tool packages for NetCDF data analysis:
Cygwin or a Virtual Machine with a LINUX operating system enables Windows users to use LINUX command line tools. Missing Data Missing data is indicated by the value 1.e20 (single precision floating point). GRIB format for FAR, SAR, TAR and AR4FM 92 GRIB is widely used to represent forecast and analysis products in binary. The GRIB specification is maintained and reviewed by the World Meteorological Organisation (WMO), through its Commission for Basic Systems (CBS) and Working Group on Data Management. The WMO make available the specifications of binary representation forms such as GRIB within the publication WMO - No. 306 Manual on Codes, Volume 1, International Codes, Part B - Binary Codes (find it here). WDCC at DKRZ recommends and has experiences with the following tool packages for GRIB data analysis:
Missing Data Missing data is indicated by the value -999. (floating point). No single data items are indicated as missing. Either a whole monthly dataset is missing or not. Data Import in Geographic Information Systems (GIS)GIS software supporting GRIB and NetCDF formats are for example:
Notes:
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