please select wavelength: 
  
     ( 1)   0535 nm
     ( 2)   0550 nm
     ( 3)   0659 nm
     ( 4)   0865 nm
     ( 5)   1600 nm
     ( 6)   3700 nm

 ?

  please select tilt angle: 
  
    
     ( 1)   00
     ( 2)   01
     ( 3)   30
     ( 4)   90
 
 ?

  please decide which kind of size distribution you want to use:
  

  (1) Heymsfield and Platt (1984)
  (2) Liou (1989)
  (3) own number densities
  (4) read number densities from file "numin"
  
 ?

• (1) Heymsfield and Platt (1984)

  Here, one of 8 temperature dependent size distributions may be selected (the temperatures are in °C):

    please select size distribution:
  
    (1): -20ø to -25
    (2): -25ø to -30
    (3): -30ø to -35
    (4): -35ø to -40
    (5): -40ø to -45
    (6): -45ø to -50
    (7): -50ø to -55
    (8): -55ø to -60
  
   ?
  
  

  These size distributions are restricted to sizes larger than 20 µm. Thus, the size intervals B and A are not used.

• (2) Liou (1989)

  This is a parametrization of the above mentioned 8 size distributions with respect to cloud temperature. The desired temperature must be given:

    please enter temperature between -20 and -60 C
   ?
  

• (3) own number densities

  Here, you can enter interactively your own number densities for all 8 intervals.

• (4) read number densities from file "numin"

  Same as above, but you enter the number densities in the file numin.

The results of this program are stored in the directory dat/sums. The last question asks for the name of the output files:

  Please enter name of outputfile without path and extension (max. 10
  char.)

This produces an output file, for instance dat/sums/test.cs.