Description
Metview Macro Library function. Computes the sum/vertical integral of fields in a FLEXPART output GRIB file.
Usage
fieldset flexpart_total_column(...)
This function uses a set of named parameters as argument.
Parameters
source
The FLEXPART output GRIB file.
data
The FLEXPART output GRIB as a fieldset. It takes precedence over source
param
The shortname of the GRIB parameter. If param is "mdc" (mass density concentration) the column integrated mass is computed. Otherwise the fields are simply added up for the specified level range.
top_level
The top height level (inclusive) for the computations. Optional.
bottom_level
The bottom height level (inclusive) for the computations. Optional.
step
The forecast step to extract.
release
The release to extract. Release indexing starts at 1.
ageclass
The ageclass to extract. Ageclass indexing starts at 1.
Example
# to compute the total column integrated mass for all the steps, releases and ageclasses
g=flexpart_total_column(source: "my_flexpart_output.grib")