Changes between Version 2 and Version 3 of ADAGUC
- Timestamp:
- Aug 22, 2008, 3:05:56 AM (16 years ago)
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ADAGUC
v2 v3 1 1 = ADAGUC netCDF - * CURRENTLY UNDER CONSTRUCTION * = 2 2 The ADAGUC netCDF driver reads and writes files which comply with the ADAGUC Data Products Standard [http://adaguc.knmi.nl (ADAGUC website)]. ADAGUC files are created by using the NetCDF4 API. The NetCDF4 API has the ability to store files in the HDF5 file format while remaining backwards compatible with previous versions of netCDF. The ADAGUC driver supports the creation of NetCDF3 and NetCDF4 files. In NetCDF3 mode the driver writes NetCDF files, in NetCDF4 mode the driver writes HDF5 files. ADAGUC netCDF files follow the Climate and Forecast (CF) 1.2 and ISO:19115 metadata conventions. Besides these conventions the format provides space for specific product metadata. 3 4 3 == The file structure == 5 4 The ADAGUC internal file structure contains variables which can be subdivided in three types: variables to store the metadata, variables to store the dimension scales and variables to store the data. A schematic overview of the ADAGUC file structure for the different types is given in the figure of the file structure (below). The three types of variables (metadata, dimension scales and data) are indicated with A, B and C respectively. … … 17 16 [[Image(ADAGUC_raster_file_structure_small.jpg, 250)]] [[Image(ADAGUC_NetCDF_dimension_scales.jpg, 310)]] 18 17 Left: filestructure; Right: dimension scales 19 18 ---- 20 19 == GDAL Creation options == 21 20 Creation options can be used to provide additional metadata and set the behavior of the driver. Metadata attributes set as a creation option override already existing metadata attributes. … … 33 32 34 33 '''NAN''' – Sets the no data value of the dataset. The _FillValue attribute of the dataset is filled with the NAN number. 35 36 34 ---- 37 35 == Building the driver == … … 41 39 * [http://www.unidata.ucar.edu/software/udunits/udunits-1/index.html] Unidata units library] 42 40 41 43 42 To make sure that the libraries are found during the compilation process you can use configure LIBS="-lhdf5 -lhdf5_hl -ludunits $LIBS". 44 43 Use --with-netcdf=<path to install tree> to build GDAL with the NetCDF library.
