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Exports data to NetCDF files which comply to the CF 1.4 standard.
To indicate that data values are missing , NetCDF-CF exports use float value 9.96921e+036 by default. It is possible to change it by entering a different missing value (NaN or other) in the configuration files. Use option <exportMissingValue> in TimeSeriesExport module, and <missVal> in GeneralAdapter
More information about the cf standards can be found at: http://cfconventions.org/
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The structure of the netCDF file which is created is shown below.
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netcdf 200101010000_example { dimensions: time = UNLIMITED ; // (4021 currently) nonodes = 1113 ; nchar = 40 ; noelements = 1110 ; nodesperelement = 2 ; variables: float time(time) ; time:standard_name = "time" ; time:long_name = "time" ; time:units = "minutes since 1970-01-01 00:00:00.0 +0000" ; time:axis = "T" ; float y(nonodes) ; y:standard_name = "projection_y_coordinate" ; y:long_name = "y coordinate in local grid" ; y:units = "m" ; y:axis = "Y" ; y:_FillValue = 9.96921e+036f ; float x(nonodes) ; x:standard_name = "projection_x_coordinate" ; x:long_name = "x coordinate in local grid" ; x:units = "m" ; x:axis = "X" ; x:_FillValue = 9.96921e+036f ; char nodenames(nonodes, nchar) ; nodenames:long_name = "name of the node <branch>_<offset>" ; int connections(noelements, nodesperelement) ; connections:long_name = "Left and right node for each element" ; connections:_FillValue = -999 ; float waterlevel(time, nonodes) ; waterlevel:long_name = "Waterlevel" ; waterlevel:units = "m" ; waterlevel:_FillValue = -9999.f ; // global attributes: :title = "Netcdf data" ; :institution = "Deltares" ; :source = "export NETCDF-CF_PROFILE_MATROOS from FEWS" ; :history = "Created at Thu Oct 15 08:32:40 GMT 2009" ; :references = "http://www.deltares.nl" ; :Conventions = "CF-1.4" ; :coordinate_system = "RD" ; |
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