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If we run this macro (or alternatively right-click execute the FLEXPART Run icon) the results (after a minute or so) will be available in folder 'result_fw_con' (as we specified it in the ouput_path parameter)conc' . The computations were actually taken place in a temporary folder the then metview copied the results here. If we open the resulting folder this older we will see to two files there:

  • cons_s001.grib is GRIB file containing the gridded concentration fields.
  • tr_r1.csv is CSV file containing the plume trajectories
Info

Please note that these are not the original outputs form FLEXTRA but were converted formats more suitable for use in Metview.  For details about the FLEXPART outputs please click here.

Visualising gridded fields

Since the output GRIB files cannot be handled by Metview's standard Grib Filter icon because (due to the local GRIB definitions we use). Therefore a set of Metview Macro Library Functions were developed to deal with the FLEXPART grib files. Please look into the visualisation macros to see how to use them. The most important Metview Macro Library Functions are as follows:

mvl_flexpart_read_hl(inFile,par,lev,ts,ac)
  
# Function to get flexpart fields on height level
# params:
#   inFile: input file
#   par: parameter shortname
#   lev: level (-1 means all)
#   ts: step (-1 means all)
#   ac: ageclass (-1 means all)


mvl_flexpart_read_sfc(inFile,par,ts,ac)
  
# Function to get surface flexpart fields
# params:
#   inFile: input file
#   par: parameter shortname
#   ts: step (-1 means all)
#   ac: ageclass (-1 means all)


mvl_flexpart_total_column(inFile,ac)
  
# Function to compute the column-integrated density for concentration
# params:
#   inFile: input file
#   ac: ageclass (-1 means all)

 




Forward simultaions

Fields

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