Supplement to the paper in Geosci. Model Dev.

Carbon monoxide as a tracer for tropical troposphere to stratosphere
transport in the Chemical Lagrangian Model of the Stratosphere (CLaMS)

by R. Pommrich, R. Müller, J.-U. Grooß, P. Konopka, G. Günther,
H.-C. Pumphrey, S. Viciani, F. D’Amato, and M. Riese



Description of the file radical_species_climatology.nc 

The radical species climatology in this file provides monthly averages
of the radical species OH, HO2, O(1D), Cl, and the air molecule total
number density (TND). The averages are calculated from hourly output
from a chemistry simulation of the Chemical Lagrangian Model of the
Stratosphere (CLaMS) [1], thus also averaged over the dirurnal cycles.
They can be used to calculate simplified chemistry e.g. first order
loss reactions of longlived chemical tracers. The simulation was
initialized with the species O3, CH4, H2O, HCl, NOx from the HALOE
climatology [2]. The remaining chemical species were initialized from
the Mainz 2-D photochemical model [3]. The chemistry integration was
performed using the SVODE solver scheme [4] and no advection of the
air parcels was considered. The HALOE ozone climatology [2] was also
used in the radiative transfer calculation to determine the photolysis
rates.

The file contains 18 latitude bins from 85S to 85N, 34 pressure bins
from 980 hPa to 0.18 hpa for each of the 12 months. The file format is
NetCDF.


References

[1] McKenna, D. S., J.-U. Grooß, G. Günther, P. Konopka, R. Müller,
   G. Carver, and Y. Sasano (2002b), A new Chemical Lagrangian Model
   of the Stratosphere (CLaMS): 2. Formulation of chemistry scheme and
   initialization, J. Geophys. Res., 107(D15), 4256, doi:10.1029/
   2000JD000113.

[2] Grooß, J.-U., and J. M. Russell (2005), Technical note: 
    A stratospheric climatology for O3, H2O, CH4, NOx, HCL, and HF
    derived from HALOE measurements, Atmos. Chem. Phys., 5, 2797–
    2807.

[3] Grooß, J.-U. (1996), Modelling of stratospheric chemistry based on
    HALOE/UARS satellite data, Ph.D. thesis, Univ. of Mainz, Mainz,
    Germany.

[4] P. N. Brown, G. D. Byrne, and A. C. Hindmarsh, "VODE: A Variable
    Coefficient ODE Solver," SIAM J. Sci. Stat. Comput., 10 (1989),
    pp. 1038-1051.  Also, LLNL Report UCRL-98412, June 1988.

