TUV model reads input file: ./INPUTS/usrinp
all output files are in the directory .. (one level above executable file)
Run each predefined case (defin1 ... defin4).
To run each case, copy the predifined file defin1 ... defin4 to usrinp and run tuv. The model will produce
two files: ../usrout.txt and ../tuvlog.txt
Compare these files with examples in the directory ./SAMPLE (see README file in the directory ./SAMPLE) and explain results
Investigate how the total ozone concentration (o3col) affects the UV fluxes near the surface.