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How to use VAPOR from within Metview?
VAPOR is designed to handle output files. It has an has it own internal data model that data pTo handle ECMWF GRIB output a conversion is required. Metview
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and any data to be visualised has to be converted into this VAPOR format. There are a set of command line tools that can convert NetCDF input data into the VAPOR format but there is no such tool available for GRIB. Metview's VAPOR Prepare icon helps to overcome this problem and allows converting GRIB data into the VAPOR format.
VAPOR data files
VAPOR input data is described by .vdf (VAPOR data Format) files. These are XML files containing the name and dimension of all the variables and the path of the actual data files storing the data values. VAPOR stores its actual data values in .vdc (VAPOR Data Collection) files. These are NetCDF files containing wavelet compressed 3D data. There is a separate file for each variable and timestep organized into a folder hierarchy.
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