Set the total column of a density profile. The column is integrated between the
user-defined altitude and TOA (top of atmosphere). The syntax is
dens_column species column [unit]
where species is one of O3, O2, H2O, CO2, NO2, BRO, OCLO, or HCHO, see also dens_file.
The second argument is the total column value, and the optional third argument is the unit,
in which the column is given. The unit can be DU (Dobson units) or CM_2 (molecules/cm
).
The default units are DU for O3, and CM_2 for all other gases. It is possible to have
several dens_column commands in the input file (maximum one per species). The following sets
the NO
total column to 1.2 DU.
dens_column NO2 1.2 DU
Arve Kylling
2010-03-10