AERCOMP ONLINE

    This page provides online access to the AERCOMP program developed by Rublev, 1994. It makes possible to obtain the integrated optical properties, i.e.the extinction coefficient, the single scattering albedo, the asymmetry factor, the normalization factor, and the aerosol phase function of a non-cloudy atmospheric aerosol composed by the user from basic aerosol constituents.

How to use it?

    The user should fill up the input fields of Table 1 (particle number concentrations (in particles per cm3) of the basic aerosol constituents- 0 denotes that a corresponding constituent is absent in the aerosol of interest) and click the Submit button.
    The program outputs the results of calculations in two files with the default names extinct.txt (ASCII) andphase.bin (binary) which  should be saved on the user's host.
    Note that the aerosol integrated optical properties are calculated at the fixed values of wavelengths and angles stored in the lm_sh.dat  and ug_204.dat files respectively. For computations at user-defined values of wavelengths and angles, one should install the AerComp.for program and the associated files  on the user's host following the directions in the GEISA-aerosol sub-database section. Click here for details.

Output files format.

    The extinct.txt file containing the extinction coefficient, the single scattering albedo, the asymmetry factor, and the normalization factor has the same format as, for example, s_cont.dat file described in the GEISA-aerosol sub-database section.
    The format of the phase.bin file with the aerosol phase function is described here.



Table 1. Composition of the user-defined aerosol
Basic aerosol constituents
Particle size concentration in particles cm-3
Water-soluble
Dust-like
Soot
Ocean
75% H2SO4
Volcanic Ash